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<section id="module-pygame.sprite">
<span id="pygame-sprite"></span><dl class="definition">
<dt class="title module sig sig-object">
<code class="docutils literal notranslate"><span class="pre">pygame.sprite</span></code></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">pygame module with basic game object classes</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite">pygame.sprite.Sprite</a></div>
</td>
<td></td>
<td>Simple base class for visible game objects.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.DirtySprite">pygame.sprite.DirtySprite</a></div>
</td>
<td></td>
<td>A subclass of Sprite with more attributes and features.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group">pygame.sprite.Group</a></div>
</td>
<td></td>
<td>A container class to hold and manage multiple Sprite objects.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.RenderPlain">pygame.sprite.RenderPlain</a></div>
</td>
<td></td>
<td>Same as pygame.sprite.Group</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.RenderClear">pygame.sprite.RenderClear</a></div>
</td>
<td></td>
<td>Same as pygame.sprite.Group</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.RenderUpdates">pygame.sprite.RenderUpdates</a></div>
</td>
<td></td>
<td>Group sub-class that tracks dirty updates.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.OrderedUpdates">pygame.sprite.OrderedUpdates</a></div>
</td>
<td></td>
<td>RenderUpdates sub-class that draws Sprites in order of addition.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates">pygame.sprite.LayeredUpdates</a></div>
</td>
<td></td>
<td>LayeredUpdates is a sprite group that handles layers and draws like OrderedUpdates.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty">pygame.sprite.LayeredDirty</a></div>
</td>
<td></td>
<td>LayeredDirty group is for DirtySprite objects. Subclasses LayeredUpdates.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.GroupSingle">pygame.sprite.GroupSingle</a></div>
</td>
<td></td>
<td>Group container that holds a single sprite.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.spritecollide">pygame.sprite.spritecollide</a></div>
</td>
<td></td>
<td>Find sprites in a group that intersect another sprite.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.collide_rect">pygame.sprite.collide_rect</a></div>
</td>
<td></td>
<td>Collision detection between two sprites, using rects.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.collide_rect_ratio">pygame.sprite.collide_rect_ratio</a></div>
</td>
<td></td>
<td>Collision detection between two sprites, using rects scaled to a ratio.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.collide_circle">pygame.sprite.collide_circle</a></div>
</td>
<td></td>
<td>Collision detection between two sprites, using circles.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.collide_circle_ratio">pygame.sprite.collide_circle_ratio</a></div>
</td>
<td></td>
<td>Collision detection between two sprites, using circles scaled to a ratio.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.collide_mask">pygame.sprite.collide_mask</a></div>
</td>
<td></td>
<td>Collision detection between two sprites, using masks.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.groupcollide">pygame.sprite.groupcollide</a></div>
</td>
<td></td>
<td>Find all sprites that collide between two groups.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.spritecollideany">pygame.sprite.spritecollideany</a></div>
</td>
<td></td>
<td>Simple test if a sprite intersects anything in a group.</td>
</tr>
</tbody>
</table>
<p>This module contains several simple classes to be used within games. There is
the main Sprite class and several Group classes that contain Sprites. The use
of these classes is entirely optional when using pygame. The classes are fairly
lightweight and only provide a starting place for the code that is common to
most games.</p>
<p>The Sprite class is intended to be used as a base class for the different types
of objects in the game. There is also a base Group class that simply stores
sprites. A game could create new types of Group classes that operate on
specially customized Sprite instances they contain.</p>
<p>The basic Group class can draw the Sprites it contains to a Surface. The
<code class="docutils literal notranslate"><span class="pre">Group.draw()</span></code> method requires that each Sprite have a <code class="docutils literal notranslate"><span class="pre">Surface.image</span></code>
attribute and a <code class="docutils literal notranslate"><span class="pre">Surface.rect</span></code>. The <code class="docutils literal notranslate"><span class="pre">Group.clear()</span></code> method requires these
same attributes, and can be used to erase all the Sprites with background.
There are also more advanced Groups: <code class="docutils literal notranslate"><span class="pre">pygame.sprite.RenderUpdates()</span></code> and
<code class="docutils literal notranslate"><span class="pre">pygame.sprite.OrderedUpdates()</span></code>.</p>
<p>Lastly, this module contains several collision functions. These help find
sprites inside multiple groups that have intersecting bounding rectangles. To
find the collisions, the Sprites are required to have a <code class="docutils literal notranslate"><span class="pre">Surface.rect</span></code>
attribute assigned.</p>
<p>The groups are designed for high efficiency in removing and adding Sprites to
them. They also allow cheap testing to see if a Sprite already exists in a
Group. A given Sprite can exist in any number of groups. A game could use some
groups to control object rendering, and a completely separate set of groups to
control interaction or player movement. Instead of adding type attributes or
bools to a derived Sprite class, consider keeping the Sprites inside organized
Groups. This will allow for easier lookup later in the game.</p>
<p>Sprites and Groups manage their relationships with the <code class="docutils literal notranslate"><span class="pre">add()</span></code> and
<code class="docutils literal notranslate"><span class="pre">remove()</span></code> methods. These methods can accept a single or multiple targets for
membership. The default initializers for these classes also takes a single or
list of targets for initial membership. It is safe to repeatedly add and remove
the same Sprite from a Group.</p>
<p>While it is possible to design sprite and group classes that don't derive from
the Sprite and AbstractGroup classes below, it is strongly recommended that you
extend those when you add a Sprite or Group class.</p>
<p>Sprites are not thread safe. So lock them yourself if using threads.</p>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">Sprite</span></span><a class="headerlink" href="#pygame.sprite.Sprite" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Simple base class for visible game objects.</span></div>
<div class="line"><span class="signature">Sprite(*groups) -&gt; Sprite</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.update">pygame.sprite.Sprite.update</a></div>
</td>
<td></td>
<td>method to control sprite behavior</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.add">pygame.sprite.Sprite.add</a></div>
</td>
<td></td>
<td>add the sprite to groups</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.remove">pygame.sprite.Sprite.remove</a></div>
</td>
<td></td>
<td>remove the sprite from groups</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.kill">pygame.sprite.Sprite.kill</a></div>
</td>
<td></td>
<td>remove the Sprite from all Groups</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.alive">pygame.sprite.Sprite.alive</a></div>
</td>
<td></td>
<td>does the sprite belong to any groups</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Sprite.groups">pygame.sprite.Sprite.groups</a></div>
</td>
<td></td>
<td>list of Groups that contain this Sprite</td>
</tr>
</tbody>
</table>
<p>The base class for visible game objects. Derived classes will want to
override the <code class="docutils literal notranslate"><span class="pre">Sprite.update()</span></code> and assign a <code class="docutils literal notranslate"><span class="pre">Sprite.image</span></code> and
<code class="docutils literal notranslate"><span class="pre">Sprite.rect</span></code> attributes. The initializer can accept any number of Group
instances to be added to.</p>
<p>When subclassing the Sprite, be sure to call the base initializer before
adding the Sprite to Groups. For example:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">Block</span><span class="p">(</span><span class="n">pygame</span><span class="o">.</span><span class="n">sprite</span><span class="o">.</span><span class="n">Sprite</span><span class="p">):</span>
<span class="c1"># Constructor. Pass in the color of the block,</span>
<span class="c1"># and its x and y position</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">color</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">):</span>
<span class="c1"># Call the parent class (Sprite) constructor</span>
<span class="n">pygame</span><span class="o">.</span><span class="n">sprite</span><span class="o">.</span><span class="n">Sprite</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="c1"># Create an image of the block, and fill it with a color.</span>
<span class="c1"># This could also be an image loaded from the disk.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">image</span> <span class="o">=</span> <span class="n">pygame</span><span class="o">.</span><span class="n">Surface</span><span class="p">([</span><span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">image</span><span class="o">.</span><span class="n">fill</span><span class="p">(</span><span class="n">color</span><span class="p">)</span>
<span class="c1"># Fetch the rectangle object that has the dimensions of the image</span>
<span class="c1"># Update the position of this object by setting the values of rect.x and rect.y</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rect</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">image</span><span class="o">.</span><span class="n">get_rect</span><span class="p">()</span>
</pre></div>
</div>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.update">
<span class="sig-name descname"><span class="pre">update</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.update" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">method to control sprite behavior</span></div>
<div class="line"><span class="signature">update(*args, **kwargs) -&gt; None</span></div>
</div>
<p>The default implementation of this method does nothing; it's just a
convenient &quot;hook&quot; that you can override. This method is called by
<code class="docutils literal notranslate"><span class="pre">Group.update()</span></code> with whatever arguments you give it.</p>
<p>There is no need to use this method if not using the convenience method
by the same name in the Group class.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.add">
<span class="sig-name descname"><span class="pre">add</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.add" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">add the sprite to groups</span></div>
<div class="line"><span class="signature">add(*groups) -&gt; None</span></div>
</div>
<p>Any number of Group instances can be passed as arguments. The Sprite will
be added to the Groups it is not already a member of.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.remove">
<span class="sig-name descname"><span class="pre">remove</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.remove" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">remove the sprite from groups</span></div>
<div class="line"><span class="signature">remove(*groups) -&gt; None</span></div>
</div>
<p>Any number of Group instances can be passed as arguments. The Sprite will
be removed from the Groups it is currently a member of.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.kill">
<span class="sig-name descname"><span class="pre">kill</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.kill" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">remove the Sprite from all Groups</span></div>
<div class="line"><span class="signature">kill() -&gt; None</span></div>
</div>
<p>The Sprite is removed from all the Groups that contain it. This won't
change anything about the state of the Sprite. It is possible to continue
to use the Sprite after this method has been called, including adding it
to Groups.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.alive">
<span class="sig-name descname"><span class="pre">alive</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.alive" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">does the sprite belong to any groups</span></div>
<div class="line"><span class="signature">alive() -&gt; bool</span></div>
</div>
<p>Returns True when the Sprite belongs to one or more Groups.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Sprite.groups">
<span class="sig-name descname"><span class="pre">groups</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Sprite.groups" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">list of Groups that contain this Sprite</span></div>
<div class="line"><span class="signature">groups() -&gt; group_list</span></div>
</div>
<p>Return a list of all the Groups that contain this Sprite.</p>
</dd></dl>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.DirtySprite">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">DirtySprite</span></span><a class="headerlink" href="#pygame.sprite.DirtySprite" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">A subclass of Sprite with more attributes and features.</span></div>
<div class="line"><span class="signature">DirtySprite(*groups) -&gt; DirtySprite</span></div>
</div>
<p>Extra DirtySprite attributes with their default values:</p>
<p>dirty = 1</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="nb">set</span> <span class="n">to</span> <span class="mi">1</span><span class="p">,</span> <span class="n">it</span> <span class="ow">is</span> <span class="n">repainted</span> <span class="ow">and</span> <span class="n">then</span> <span class="nb">set</span> <span class="n">to</span> <span class="mi">0</span> <span class="n">again</span>
<span class="k">if</span> <span class="nb">set</span> <span class="n">to</span> <span class="mi">2</span> <span class="n">then</span> <span class="n">it</span> <span class="ow">is</span> <span class="n">always</span> <span class="n">dirty</span> <span class="p">(</span> <span class="n">repainted</span> <span class="n">each</span> <span class="n">frame</span><span class="p">,</span>
<span class="n">flag</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">reset</span><span class="p">)</span>
<span class="mi">0</span> <span class="n">means</span> <span class="n">that</span> <span class="n">it</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">dirty</span> <span class="ow">and</span> <span class="n">therefore</span> <span class="ow">not</span> <span class="n">repainted</span> <span class="n">again</span>
</pre></div>
</div>
<p>blendmode = 0</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">its</span> <span class="n">the</span> <span class="n">special_flags</span> <span class="n">argument</span> <span class="n">of</span> <span class="n">blit</span><span class="p">,</span> <span class="n">blendmodes</span>
</pre></div>
</div>
<p>source_rect = None</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">source</span> <span class="n">rect</span> <span class="n">to</span> <span class="n">use</span><span class="p">,</span> <span class="n">remember</span> <span class="n">that</span> <span class="n">it</span> <span class="ow">is</span> <span class="n">relative</span> <span class="n">to</span>
<span class="n">topleft</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mi">0</span><span class="p">)</span> <span class="n">of</span> <span class="bp">self</span><span class="o">.</span><span class="n">image</span>
</pre></div>
</div>
<p>visible = 1</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">normally</span> <span class="mi">1</span><span class="p">,</span> <span class="k">if</span> <span class="nb">set</span> <span class="n">to</span> <span class="mi">0</span> <span class="n">it</span> <span class="n">will</span> <span class="ow">not</span> <span class="n">be</span> <span class="n">repainted</span>
<span class="p">(</span><span class="n">you</span> <span class="n">must</span> <span class="nb">set</span> <span class="n">it</span> <span class="n">dirty</span> <span class="n">too</span> <span class="n">to</span> <span class="n">be</span> <span class="n">erased</span> <span class="kn">from</span> <span class="nn">screen</span><span class="p">)</span>
</pre></div>
</div>
<p>layer = 0</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">(</span><span class="n">READONLY</span> <span class="n">value</span><span class="p">,</span> <span class="n">it</span> <span class="ow">is</span> <span class="n">read</span> <span class="n">when</span> <span class="n">adding</span> <span class="n">it</span> <span class="n">to</span> <span class="n">the</span>
<span class="n">LayeredDirty</span><span class="p">,</span> <span class="k">for</span> <span class="n">details</span> <span class="n">see</span> <span class="n">doc</span> <span class="n">of</span> <span class="n">LayeredDirty</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">Group</span></span><a class="headerlink" href="#pygame.sprite.Group" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">A container class to hold and manage multiple Sprite objects.</span></div>
<div class="line"><span class="signature">Group(*sprites) -&gt; Group</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.sprites">pygame.sprite.Group.sprites</a></div>
</td>
<td></td>
<td>list of the Sprites this Group contains</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.copy">pygame.sprite.Group.copy</a></div>
</td>
<td></td>
<td>duplicate the Group</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.add">pygame.sprite.Group.add</a></div>
</td>
<td></td>
<td>add Sprites to this Group</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.remove">pygame.sprite.Group.remove</a></div>
</td>
<td></td>
<td>remove Sprites from the Group</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.has">pygame.sprite.Group.has</a></div>
</td>
<td></td>
<td>test if a Group contains Sprites</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.update">pygame.sprite.Group.update</a></div>
</td>
<td></td>
<td>call the update method on contained Sprites</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.draw">pygame.sprite.Group.draw</a></div>
</td>
<td></td>
<td>blit the Sprite images</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.clear">pygame.sprite.Group.clear</a></div>
</td>
<td></td>
<td>draw a background over the Sprites</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.Group.empty">pygame.sprite.Group.empty</a></div>
</td>
<td></td>
<td>remove all Sprites</td>
</tr>
</tbody>
</table>
<p>A simple container for Sprite objects. This class can be inherited to create
containers with more specific behaviors. The constructor takes any number of
Sprite arguments to add to the Group. The group supports the following
standard Python operations:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ow">in</span> <span class="n">test</span> <span class="k">if</span> <span class="n">a</span> <span class="n">Sprite</span> <span class="ow">is</span> <span class="n">contained</span>
<span class="nb">len</span> <span class="n">the</span> <span class="n">number</span> <span class="n">of</span> <span class="n">Sprites</span> <span class="n">contained</span>
<span class="nb">bool</span> <span class="n">test</span> <span class="k">if</span> <span class="nb">any</span> <span class="n">Sprites</span> <span class="n">are</span> <span class="n">contained</span>
<span class="nb">iter</span> <span class="n">iterate</span> <span class="n">through</span> <span class="nb">all</span> <span class="n">the</span> <span class="n">Sprites</span>
</pre></div>
</div>
<p>The Sprites in the Group are ordered only on python 3.6 and higher.
Below python 3.6 drawing and iterating over the Sprites is in no particular order.</p>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.sprites">
<span class="sig-name descname"><span class="pre">sprites</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.sprites" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">list of the Sprites this Group contains</span></div>
<div class="line"><span class="signature">sprites() -&gt; sprite_list</span></div>
</div>
<p>Return a list of all the Sprites this group contains. You can also get an
iterator from the group, but you cannot iterate over a Group while
modifying it.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.copy">
<span class="sig-name descname"><span class="pre">copy</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.copy" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">duplicate the Group</span></div>
<div class="line"><span class="signature">copy() -&gt; Group</span></div>
</div>
<p>Creates a new Group with all the same Sprites as the original. If you
have subclassed Group, the new object will have the same (sub-)class as
the original. This only works if the derived class's constructor takes
the same arguments as the Group class's.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.add">
<span class="sig-name descname"><span class="pre">add</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.add" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">add Sprites to this Group</span></div>
<div class="line"><span class="signature">add(*sprites) -&gt; None</span></div>
</div>
<p>Add any number of Sprites to this Group. This will only add Sprites that
are not already members of the Group.</p>
<p>Each sprite argument can also be a iterator containing Sprites.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.remove">
<span class="sig-name descname"><span class="pre">remove</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.remove" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">remove Sprites from the Group</span></div>
<div class="line"><span class="signature">remove(*sprites) -&gt; None</span></div>
</div>
<p>Remove any number of Sprites from the Group. This will only remove
Sprites that are already members of the Group.</p>
<p>Each sprite argument can also be a iterator containing Sprites.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.has">
<span class="sig-name descname"><span class="pre">has</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.has" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if a Group contains Sprites</span></div>
<div class="line"><span class="signature">has(*sprites) -&gt; bool</span></div>
</div>
<p>Return True if the Group contains all of the given sprites. This is
similar to using the &quot;in&quot; operator on the Group (&quot;if sprite in group:
...&quot;), which tests if a single Sprite belongs to a Group.</p>
<p>Each sprite argument can also be a iterator containing Sprites.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.update">
<span class="sig-name descname"><span class="pre">update</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.update" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">call the update method on contained Sprites</span></div>
<div class="line"><span class="signature">update(*args, **kwargs) -&gt; None</span></div>
</div>
<p>Calls the <code class="docutils literal notranslate"><span class="pre">update()</span></code> method on all Sprites in the Group. The base
Sprite class has an update method that takes any number of arguments and
does nothing. The arguments passed to <code class="docutils literal notranslate"><span class="pre">Group.update()</span></code> will be passed
to each Sprite.</p>
<p>There is no way to get the return value from the <code class="docutils literal notranslate"><span class="pre">Sprite.update()</span></code>
methods.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.draw">
<span class="sig-name descname"><span class="pre">draw</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.draw" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">blit the Sprite images</span></div>
<div class="line"><span class="signature">draw(Surface, bgsurf=None, special_flags=0) -&gt; List[Rect]</span></div>
</div>
<p>Draws the contained Sprites to the Surface argument. This uses the
<code class="docutils literal notranslate"><span class="pre">Sprite.image</span></code> attribute for the source surface, and <code class="docutils literal notranslate"><span class="pre">Sprite.rect</span></code>
for the position. <code class="docutils literal notranslate"><span class="pre">special_flags</span></code> is passed to <code class="docutils literal notranslate"><span class="pre">Surface.blit()</span></code>.
<code class="docutils literal notranslate"><span class="pre">bgsurf</span></code> is unused in this method but <code class="docutils literal notranslate"><span class="pre">LayeredDirty.draw()</span></code> uses
it.</p>
<p>The Group does not keep sprites in any order, so the draw order is
arbitrary.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.clear">
<span class="sig-name descname"><span class="pre">clear</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.clear" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">draw a background over the Sprites</span></div>
<div class="line"><span class="signature">clear(Surface_dest, background) -&gt; None</span></div>
</div>
<p>Erases the Sprites used in the last <code class="docutils literal notranslate"><span class="pre">Group.draw()</span></code> call. The
destination Surface is cleared by filling the drawn Sprite positions with
the background.</p>
<p>The background is usually a Surface image the same dimensions as the
destination Surface. However, it can also be a callback function that
takes two arguments; the destination Surface and an area to clear. The
background callback function will be called several times each clear.</p>
<p>Here is an example callback that will clear the Sprites with solid red:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">clear_callback</span><span class="p">(</span><span class="n">surf</span><span class="p">,</span> <span class="n">rect</span><span class="p">):</span>
<span class="n">color</span> <span class="o">=</span> <span class="mi">255</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="n">surf</span><span class="o">.</span><span class="n">fill</span><span class="p">(</span><span class="n">color</span><span class="p">,</span> <span class="n">rect</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.Group.empty">
<span class="sig-name descname"><span class="pre">empty</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.Group.empty" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">remove all Sprites</span></div>
<div class="line"><span class="signature">empty() -&gt; None</span></div>
</div>
<p>Removes all Sprites from this Group.</p>
</dd></dl>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.RenderPlain">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">RenderPlain</span></span><a class="headerlink" href="#pygame.sprite.RenderPlain" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Same as pygame.sprite.Group</span></div>
</div>
<p>This class is an alias to <code class="docutils literal notranslate"><span class="pre">pygame.sprite.Group()</span></code>. It has no additional functionality.</p>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.RenderClear">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">RenderClear</span></span><a class="headerlink" href="#pygame.sprite.RenderClear" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Same as pygame.sprite.Group</span></div>
</div>
<p>This class is an alias to <code class="docutils literal notranslate"><span class="pre">pygame.sprite.Group()</span></code>. It has no additional functionality.</p>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.RenderUpdates">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">RenderUpdates</span></span><a class="headerlink" href="#pygame.sprite.RenderUpdates" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Group sub-class that tracks dirty updates.</span></div>
<div class="line"><span class="signature">RenderUpdates(*sprites) -&gt; RenderUpdates</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.RenderUpdates.draw">pygame.sprite.RenderUpdates.draw</a></div>
</td>
<td></td>
<td>blit the Sprite images and track changed areas</td>
</tr>
</tbody>
</table>
<p>This class is derived from <code class="docutils literal notranslate"><span class="pre">pygame.sprite.Group()</span></code>. It has an extended
<code class="docutils literal notranslate"><span class="pre">draw()</span></code> method that tracks the changed areas of the screen.</p>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.RenderUpdates.draw">
<span class="sig-name descname"><span class="pre">draw</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.RenderUpdates.draw" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">blit the Sprite images and track changed areas</span></div>
<div class="line"><span class="signature">draw(surface, bgsurf=None, special_flags=0) -&gt; Rect_list</span></div>
</div>
<p>Draws all the Sprites to the surface, the same as <code class="docutils literal notranslate"><span class="pre">Group.draw()</span></code>. This
method also returns a list of Rectangular areas on the screen that have
been changed. The returned changes include areas of the screen that have
been affected by previous <code class="docutils literal notranslate"><span class="pre">Group.clear()</span></code> calls. <code class="docutils literal notranslate"><span class="pre">special_flags</span></code> is
passed to <code class="docutils literal notranslate"><span class="pre">Surface.blit()</span></code>.</p>
<p>The returned Rect list should be passed to <code class="docutils literal notranslate"><span class="pre">pygame.display.update()</span></code>.
This will help performance on software driven display modes. This type of
updating is usually only helpful on destinations with non-animating
backgrounds.</p>
</dd></dl>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.OrderedUpdates">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">OrderedUpdates</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.OrderedUpdates" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">RenderUpdates sub-class that draws Sprites in order of addition.</span></div>
<div class="line"><span class="signature">OrderedUpdates(*sprites) -&gt; OrderedUpdates</span></div>
</div>
<p>This class derives from <code class="docutils literal notranslate"><span class="pre">pygame.sprite.RenderUpdates()</span></code>. It maintains the
order in which the Sprites were added to the Group for rendering. This makes
adding and removing Sprites from the Group a little slower than regular
Groups.</p>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">LayeredUpdates</span></span><a class="headerlink" href="#pygame.sprite.LayeredUpdates" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">LayeredUpdates is a sprite group that handles layers and draws like OrderedUpdates.</span></div>
<div class="line"><span class="signature">LayeredUpdates(*sprites, **kwargs) -&gt; LayeredUpdates</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.add">pygame.sprite.LayeredUpdates.add</a></div>
</td>
<td></td>
<td>add a sprite or sequence of sprites to a group</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.sprites">pygame.sprite.LayeredUpdates.sprites</a></div>
</td>
<td></td>
<td>returns a ordered list of sprites (first back, last top).</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.draw">pygame.sprite.LayeredUpdates.draw</a></div>
</td>
<td></td>
<td>draw all sprites in the right order onto the passed surface.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_sprites_at">pygame.sprite.LayeredUpdates.get_sprites_at</a></div>
</td>
<td></td>
<td>returns a list with all sprites at that position.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_sprite">pygame.sprite.LayeredUpdates.get_sprite</a></div>
</td>
<td></td>
<td>returns the sprite at the index idx from the groups sprites</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.remove_sprites_of_layer">pygame.sprite.LayeredUpdates.remove_sprites_of_layer</a></div>
</td>
<td></td>
<td>removes all sprites from a layer and returns them as a list.</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.layers">pygame.sprite.LayeredUpdates.layers</a></div>
</td>
<td></td>
<td>returns a list of layers defined (unique), sorted from bottom up.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.change_layer">pygame.sprite.LayeredUpdates.change_layer</a></div>
</td>
<td></td>
<td>changes the layer of the sprite</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_layer_of_sprite">pygame.sprite.LayeredUpdates.get_layer_of_sprite</a></div>
</td>
<td></td>
<td>returns the layer that sprite is currently in.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_top_layer">pygame.sprite.LayeredUpdates.get_top_layer</a></div>
</td>
<td></td>
<td>returns the top layer</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_bottom_layer">pygame.sprite.LayeredUpdates.get_bottom_layer</a></div>
</td>
<td></td>
<td>returns the bottom layer</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.move_to_front">pygame.sprite.LayeredUpdates.move_to_front</a></div>
</td>
<td></td>
<td>brings the sprite to front layer</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.move_to_back">pygame.sprite.LayeredUpdates.move_to_back</a></div>
</td>
<td></td>
<td>moves the sprite to the bottom layer</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_top_sprite">pygame.sprite.LayeredUpdates.get_top_sprite</a></div>
</td>
<td></td>
<td>returns the topmost sprite</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.get_sprites_from_layer">pygame.sprite.LayeredUpdates.get_sprites_from_layer</a></div>
</td>
<td></td>
<td>returns all sprites from a layer, ordered by how they where added</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredUpdates.switch_layer">pygame.sprite.LayeredUpdates.switch_layer</a></div>
</td>
<td></td>
<td>switches the sprites from layer1 to layer2</td>
</tr>
</tbody>
</table>
<p>This group is fully compatible with <a class="tooltip reference internal" href="#pygame.sprite.Sprite" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.sprite.Sprite</span></code><span class="tooltip-content">Simple base class for visible game objects.</span></a>.</p>
<p>You can set the default layer through kwargs using 'default_layer' and an
integer for the layer. The default layer is 0.</p>
<p>If the sprite you add has an attribute _layer then that layer will be used.
If the **kwarg contains 'layer' then the sprites passed will be added to
that layer (overriding the <code class="docutils literal notranslate"><span class="pre">sprite.layer</span></code> attribute). If neither sprite
has attribute layer nor **kwarg then the default layer is used to add the
sprites.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.</span></p>
</div>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.add">
<span class="sig-name descname"><span class="pre">add</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.add" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">add a sprite or sequence of sprites to a group</span></div>
<div class="line"><span class="signature">add(*sprites, **kwargs) -&gt; None</span></div>
</div>
<p>If the <code class="docutils literal notranslate"><span class="pre">sprite(s)</span></code> have an attribute layer then that is used for the
layer. If **kwargs contains 'layer' then the <code class="docutils literal notranslate"><span class="pre">sprite(s)</span></code> will be added
to that argument (overriding the sprite layer attribute). If neither is
passed then the <code class="docutils literal notranslate"><span class="pre">sprite(s)</span></code> will be added to the default layer.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.sprites">
<span class="sig-name descname"><span class="pre">sprites</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.sprites" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns a ordered list of sprites (first back, last top).</span></div>
<div class="line"><span class="signature">sprites() -&gt; sprites</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.draw">
<span class="sig-name descname"><span class="pre">draw</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.draw" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">draw all sprites in the right order onto the passed surface.</span></div>
<div class="line"><span class="signature">draw(surface, bgsurf=None, special_flags=0) -&gt; Rect_list</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_sprites_at">
<span class="sig-name descname"><span class="pre">get_sprites_at</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_sprites_at" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns a list with all sprites at that position.</span></div>
<div class="line"><span class="signature">get_sprites_at(pos) -&gt; colliding_sprites</span></div>
</div>
<p>Bottom sprites first, top last.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_sprite">
<span class="sig-name descname"><span class="pre">get_sprite</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_sprite" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns the sprite at the index idx from the groups sprites</span></div>
<div class="line"><span class="signature">get_sprite(idx) -&gt; sprite</span></div>
</div>
<p>Raises IndexOutOfBounds if the idx is not within range.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.remove_sprites_of_layer">
<span class="sig-name descname"><span class="pre">remove_sprites_of_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.remove_sprites_of_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">removes all sprites from a layer and returns them as a list.</span></div>
<div class="line"><span class="signature">remove_sprites_of_layer(layer_nr) -&gt; sprites</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.layers">
<span class="sig-name descname"><span class="pre">layers</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.layers" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns a list of layers defined (unique), sorted from bottom up.</span></div>
<div class="line"><span class="signature">layers() -&gt; layers</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.change_layer">
<span class="sig-name descname"><span class="pre">change_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.change_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">changes the layer of the sprite</span></div>
<div class="line"><span class="signature">change_layer(sprite, new_layer) -&gt; None</span></div>
</div>
<p>sprite must have been added to the renderer. It is not checked.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_layer_of_sprite">
<span class="sig-name descname"><span class="pre">get_layer_of_sprite</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_layer_of_sprite" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns the layer that sprite is currently in.</span></div>
<div class="line"><span class="signature">get_layer_of_sprite(sprite) -&gt; layer</span></div>
</div>
<p>If the sprite is not found then it will return the default layer.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_top_layer">
<span class="sig-name descname"><span class="pre">get_top_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_top_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns the top layer</span></div>
<div class="line"><span class="signature">get_top_layer() -&gt; layer</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_bottom_layer">
<span class="sig-name descname"><span class="pre">get_bottom_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_bottom_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns the bottom layer</span></div>
<div class="line"><span class="signature">get_bottom_layer() -&gt; layer</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.move_to_front">
<span class="sig-name descname"><span class="pre">move_to_front</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.move_to_front" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">brings the sprite to front layer</span></div>
<div class="line"><span class="signature">move_to_front(sprite) -&gt; None</span></div>
</div>
<p>Brings the sprite to front, changing sprite layer to topmost layer (added
at the end of that layer).</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.move_to_back">
<span class="sig-name descname"><span class="pre">move_to_back</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.move_to_back" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">moves the sprite to the bottom layer</span></div>
<div class="line"><span class="signature">move_to_back(sprite) -&gt; None</span></div>
</div>
<p>Moves the sprite to the bottom layer, moving it behind all other layers
and adding one additional layer.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_top_sprite">
<span class="sig-name descname"><span class="pre">get_top_sprite</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_top_sprite" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns the topmost sprite</span></div>
<div class="line"><span class="signature">get_top_sprite() -&gt; Sprite</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.get_sprites_from_layer">
<span class="sig-name descname"><span class="pre">get_sprites_from_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.get_sprites_from_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">returns all sprites from a layer, ordered by how they where added</span></div>
<div class="line"><span class="signature">get_sprites_from_layer(layer) -&gt; sprites</span></div>
</div>
<p>Returns all sprites from a layer, ordered by how they where added. It
uses linear search and the sprites are not removed from layer.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredUpdates.switch_layer">
<span class="sig-name descname"><span class="pre">switch_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredUpdates.switch_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">switches the sprites from layer1 to layer2</span></div>
<div class="line"><span class="signature">switch_layer(layer1_nr, layer2_nr) -&gt; None</span></div>
</div>
<p>The layers number must exist, it is not checked.</p>
</dd></dl>
</dd></dl>
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">LayeredDirty</span></span><a class="headerlink" href="#pygame.sprite.LayeredDirty" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">LayeredDirty group is for DirtySprite objects. Subclasses LayeredUpdates.</span></div>
<div class="line"><span class="signature">LayeredDirty(*sprites, **kwargs) -&gt; LayeredDirty</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.draw">pygame.sprite.LayeredDirty.draw</a></div>
</td>
<td></td>
<td>draw all sprites in the right order onto the passed surface.</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.clear">pygame.sprite.LayeredDirty.clear</a></div>
</td>
<td></td>
<td>used to set background</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.repaint_rect">pygame.sprite.LayeredDirty.repaint_rect</a></div>
</td>
<td></td>
<td>repaints the given area</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.set_clip">pygame.sprite.LayeredDirty.set_clip</a></div>
</td>
<td></td>
<td>clip the area where to draw. Just pass None (default) to reset the clip</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.get_clip">pygame.sprite.LayeredDirty.get_clip</a></div>
</td>
<td></td>
<td>clip the area where to draw. Just pass None (default) to reset the clip</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.change_layer">pygame.sprite.LayeredDirty.change_layer</a></div>
</td>
<td></td>
<td>changes the layer of the sprite</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.set_timing_treshold">pygame.sprite.LayeredDirty.set_timing_treshold</a></div>
</td>
<td></td>
<td>sets the threshold in milliseconds</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="sprite.html#pygame.sprite.LayeredDirty.set_timing_threshold">pygame.sprite.LayeredDirty.set_timing_threshold</a></div>
</td>
<td></td>
<td>sets the threshold in milliseconds</td>
</tr>
</tbody>
</table>
<p>This group requires <a class="tooltip reference internal" href="#pygame.sprite.DirtySprite" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.sprite.DirtySprite</span></code><span class="tooltip-content">A subclass of Sprite with more attributes and features.</span></a> or any sprite that
has the following attributes:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">image</span><span class="p">,</span> <span class="n">rect</span><span class="p">,</span> <span class="n">dirty</span><span class="p">,</span> <span class="n">visible</span><span class="p">,</span> <span class="n">blendmode</span> <span class="p">(</span><span class="n">see</span> <span class="n">doc</span> <span class="n">of</span> <span class="n">DirtySprite</span><span class="p">)</span><span class="o">.</span>
</pre></div>
</div>
<p>It uses the dirty flag technique and is therefore faster than the
<a class="tooltip reference internal" href="#pygame.sprite.RenderUpdates" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.sprite.RenderUpdates</span></code><span class="tooltip-content">Group sub-class that tracks dirty updates.</span></a> if you have many static sprites. It
also switches automatically between dirty rect update and full screen
drawing, so you do not have to worry what would be faster.</p>
<p>Same as for the <a class="tooltip reference internal" href="#pygame.sprite.Group" title=""><code class="xref py py-class docutils literal notranslate"><span class="pre">pygame.sprite.Group</span></code><span class="tooltip-content">A container class to hold and manage multiple Sprite objects.</span></a>. You can specify some
additional attributes through kwargs:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">_use_update</span><span class="p">:</span> <span class="kc">True</span><span class="o">/</span><span class="kc">False</span> <span class="n">default</span> <span class="ow">is</span> <span class="kc">False</span>
<span class="n">_default_layer</span><span class="p">:</span> <span class="n">default</span> <span class="n">layer</span> <span class="n">where</span> <span class="n">sprites</span> <span class="n">without</span> <span class="n">a</span> <span class="n">layer</span> <span class="n">are</span> <span class="n">added</span><span class="o">.</span>
<span class="n">_time_threshold</span><span class="p">:</span> <span class="n">threshold</span> <span class="n">time</span> <span class="k">for</span> <span class="n">switching</span> <span class="n">between</span> <span class="n">dirty</span> <span class="n">rect</span> <span class="n">mode</span>
<span class="ow">and</span> <span class="n">fullscreen</span> <span class="n">mode</span><span class="p">,</span> <span class="n">defaults</span> <span class="n">to</span> <span class="mf">1000.</span><span class="o">/</span><span class="mi">80</span> <span class="o">==</span> <span class="mf">1000.</span><span class="o">/</span><span class="n">fps</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.</span></p>
</div>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.draw">
<span class="sig-name descname"><span class="pre">draw</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.draw" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">draw all sprites in the right order onto the passed surface.</span></div>
<div class="line"><span class="signature">draw(surface, bgsurf=None, special_flags=None) -&gt; Rect_list</span></div>
</div>
<p>You can pass the background too. If a background is already set, then the
bgsurf argument has no effect. If present, the <code class="docutils literal notranslate"><span class="pre">special_flags</span></code> argument is
always passed to <code class="docutils literal notranslate"><span class="pre">Surface.blit()</span></code>, overriding <code class="docutils literal notranslate"><span class="pre">DirtySprite.blendmode</span></code>.
If <code class="docutils literal notranslate"><span class="pre">special_flags</span></code> is not present, <code class="docutils literal notranslate"><span class="pre">DirtySprite.blendmode</span></code> is passed
to the <code class="docutils literal notranslate"><span class="pre">Surface.blit()</span></code> instead.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.clear">
<span class="sig-name descname"><span class="pre">clear</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.clear" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">used to set background</span></div>
<div class="line"><span class="signature">clear(surface, bgd) -&gt; None</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.repaint_rect">
<span class="sig-name descname"><span class="pre">repaint_rect</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.repaint_rect" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">repaints the given area</span></div>
<div class="line"><span class="signature">repaint_rect(screen_rect) -&gt; None</span></div>
</div>
<p>screen_rect is in screen coordinates.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.set_clip">
<span class="sig-name descname"><span class="pre">set_clip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.set_clip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">clip the area where to draw. Just pass None (default) to reset the clip</span></div>
<div class="line"><span class="signature">set_clip(screen_rect=None) -&gt; None</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.get_clip">
<span class="sig-name descname"><span class="pre">get_clip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.get_clip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">clip the area where to draw. Just pass None (default) to reset the clip</span></div>
<div class="line"><span class="signature">get_clip() -&gt; Rect</span></div>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.change_layer">
<span class="sig-name descname"><span class="pre">change_layer</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.change_layer" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">changes the layer of the sprite</span></div>
<div class="line"><span class="signature">change_layer(sprite, new_layer) -&gt; None</span></div>
</div>
<p>sprite must have been added to the renderer. It is not checked.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.set_timing_treshold">
<span class="sig-name descname"><span class="pre">set_timing_treshold</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.set_timing_treshold" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">sets the threshold in milliseconds</span></div>
<div class="line"><span class="signature">set_timing_treshold(time_ms) -&gt; None</span></div>
</div>
<p>DEPRECATED: Use set_timing_threshold() instead.</p>
<div class="deprecated">
<p><span class="versionmodified deprecated">Deprecated since pygame 2.1.1.</span></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.sprite.LayeredDirty.set_timing_threshold">
<span class="sig-name descname"><span class="pre">set_timing_threshold</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.LayeredDirty.set_timing_threshold" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">sets the threshold in milliseconds</span></div>
<div class="line"><span class="signature">set_timing_threshold(time_ms) -&gt; None</span></div>
</div>
<p>Defaults to 1000.0 / 80.0. This means that the screen will be painted
using the flip method rather than the update method if the update
method is taking so long to update the screen that the frame rate falls
below 80 frames per second.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.1.1.</span></p>
</div>
<dl class="field-list simple">
<dt class="field-odd">Raises<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>TypeError</strong> -- if <code class="docutils literal notranslate"><span class="pre">time_ms</span></code> is not int or float</p>
</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.GroupSingle">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">GroupSingle</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.GroupSingle" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Group container that holds a single sprite.</span></div>
<div class="line"><span class="signature">GroupSingle(sprite=None) -&gt; GroupSingle</span></div>
</div>
<p>The GroupSingle container only holds a single Sprite. When a new Sprite is
added, the old one is removed.</p>
<p>There is a special property, <code class="docutils literal notranslate"><span class="pre">GroupSingle.sprite</span></code>, that accesses the
Sprite that this Group contains. It can be None when the Group is empty. The
property can also be assigned to add a Sprite into the GroupSingle
container.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.spritecollide">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">spritecollide</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.spritecollide" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Find sprites in a group that intersect another sprite.</span></div>
<div class="line"><span class="signature">spritecollide(sprite, group, dokill, collided = None) -&gt; Sprite_list</span></div>
</div>
<p>Return a list containing all Sprites in a Group that intersect with another
Sprite. Intersection is determined by comparing the <code class="docutils literal notranslate"><span class="pre">Sprite.rect</span></code>
attribute of each Sprite.</p>
<p>The dokill argument is a bool. If set to True, all Sprites that collide will
be removed from the Group.</p>
<p>The collided argument is a callback function used to calculate if two
sprites are colliding. it should take two sprites as values, and return a
bool value indicating if they are colliding. If collided is not passed, all
sprites must have a &quot;rect&quot; value, which is a rectangle of the sprite area,
which will be used to calculate the collision.</p>
<p>collided callables:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">collide_rect</span><span class="p">,</span> <span class="n">collide_rect_ratio</span><span class="p">,</span> <span class="n">collide_circle</span><span class="p">,</span>
<span class="n">collide_circle_ratio</span><span class="p">,</span> <span class="n">collide_mask</span>
</pre></div>
</div>
<p>Example:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="c1"># See if the Sprite block has collided with anything in the Group block_list</span>
<span class="c1"># The True flag will remove the sprite in block_list</span>
<span class="n">blocks_hit_list</span> <span class="o">=</span> <span class="n">pygame</span><span class="o">.</span><span class="n">sprite</span><span class="o">.</span><span class="n">spritecollide</span><span class="p">(</span><span class="n">player</span><span class="p">,</span> <span class="n">block_list</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="c1"># Check the list of colliding sprites, and add one to the score for each one</span>
<span class="k">for</span> <span class="n">block</span> <span class="ow">in</span> <span class="n">blocks_hit_list</span><span class="p">:</span>
<span class="n">score</span> <span class="o">+=</span><span class="mi">1</span>
</pre></div>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.collide_rect">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">collide_rect</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.collide_rect" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Collision detection between two sprites, using rects.</span></div>
<div class="line"><span class="signature">collide_rect(left, right) -&gt; bool</span></div>
</div>
<p>Tests for collision between two sprites. Uses the pygame rect colliderect
function to calculate the collision. Intended to be passed as a collided
callback function to the *collide functions. Sprites must have a &quot;rect&quot;
attributes.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.collide_rect_ratio">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">collide_rect_ratio</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.collide_rect_ratio" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Collision detection between two sprites, using rects scaled to a ratio.</span></div>
<div class="line"><span class="signature">collide_rect_ratio(ratio) -&gt; collided_callable</span></div>
</div>
<p>A callable class that checks for collisions between two sprites, using a
scaled version of the sprites rects.</p>
<p>Is created with a ratio, the instance is then intended to be passed as a
collided callback function to the *collide functions.</p>
<p>A ratio is a floating point number - 1.0 is the same size, 2.0 is twice as
big, and 0.5 is half the size.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.1.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.collide_circle">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">collide_circle</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.collide_circle" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Collision detection between two sprites, using circles.</span></div>
<div class="line"><span class="signature">collide_circle(left, right) -&gt; bool</span></div>
</div>
<p>Tests for collision between two sprites, by testing to see if two circles
centered on the sprites overlap. If the sprites have a &quot;radius&quot; attribute,
that is used to create the circle, otherwise a circle is created that is big
enough to completely enclose the sprites rect as given by the &quot;rect&quot;
attribute. Intended to be passed as a collided callback function to the
*collide functions. Sprites must have a &quot;rect&quot; and an optional &quot;radius&quot;
attribute.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.1.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.collide_circle_ratio">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">collide_circle_ratio</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.collide_circle_ratio" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Collision detection between two sprites, using circles scaled to a ratio.</span></div>
<div class="line"><span class="signature">collide_circle_ratio(ratio) -&gt; collided_callable</span></div>
</div>
<p>A callable class that checks for collisions between two sprites, using a
scaled version of the sprites radius.</p>
<p>Is created with a floating point ratio, the instance is then intended to be
passed as a collided callback function to the *collide functions.</p>
<p>A ratio is a floating point number - 1.0 is the same size, 2.0 is twice as
big, and 0.5 is half the size.</p>
<p>The created callable tests for collision between two sprites, by testing to
see if two circles centered on the sprites overlap, after scaling the
circles radius by the stored ratio. If the sprites have a &quot;radius&quot;
attribute, that is used to create the circle, otherwise a circle is created
that is big enough to completely enclose the sprites rect as given by the
&quot;rect&quot; attribute. Intended to be passed as a collided callback function to
the *collide functions. Sprites must have a &quot;rect&quot; and an optional &quot;radius&quot;
attribute.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.1.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.collide_mask">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">collide_mask</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.collide_mask" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Collision detection between two sprites, using masks.</span></div>
<div class="line"><span class="signature">collide_mask(sprite1, sprite2) -&gt; (int, int)</span></div>
<div class="line"><span class="signature">collide_mask(sprite1, sprite2) -&gt; None</span></div>
</div>
<p>Tests for collision between two sprites, by testing if their bitmasks
overlap (uses <a class="tooltip reference internal" href="mask.html#pygame.mask.Mask.overlap" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.mask.Mask.overlap()</span></code><span class="tooltip-content">Returns the point of intersection</span></a>). If the sprites have a
<code class="docutils literal notranslate"><span class="pre">mask</span></code> attribute, it is used as the mask, otherwise a mask is created from
the sprite's <code class="docutils literal notranslate"><span class="pre">image</span></code> (uses <a class="tooltip reference internal" href="mask.html#pygame.mask.from_surface" title=""><code class="xref py py-func docutils literal notranslate"><span class="pre">pygame.mask.from_surface()</span></code><span class="tooltip-content">Creates a Mask from the given surface</span></a>). Sprites must
have a <code class="docutils literal notranslate"><span class="pre">rect</span></code> attribute; the <code class="docutils literal notranslate"><span class="pre">mask</span></code> attribute is optional.</p>
<p>The first point of collision between the masks is returned. The collision
point is offset from <code class="docutils literal notranslate"><span class="pre">sprite1</span></code>'s mask's topleft corner (which is always
(0, 0)). The collision point is a position within the mask and is not
related to the actual screen position of <code class="docutils literal notranslate"><span class="pre">sprite1</span></code>.</p>
<p>This function is intended to be passed as a <code class="docutils literal notranslate"><span class="pre">collided</span></code> callback function
to the group collide functions (see <a class="reference internal" href="#pygame.sprite.spritecollide" title="pygame.sprite.spritecollide"><code class="xref py py-meth docutils literal notranslate"><span class="pre">spritecollide()</span></code></a>,
<a class="reference internal" href="#pygame.sprite.groupcollide" title="pygame.sprite.groupcollide"><code class="xref py py-meth docutils literal notranslate"><span class="pre">groupcollide()</span></code></a>, <a class="reference internal" href="#pygame.sprite.spritecollideany" title="pygame.sprite.spritecollideany"><code class="xref py py-meth docutils literal notranslate"><span class="pre">spritecollideany()</span></code></a>).</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>To increase performance, create and set a <code class="docutils literal notranslate"><span class="pre">mask</span></code> attribute for all
sprites that will use this function to check for collisions. Otherwise,
each time this function is called it will create new masks.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>A new mask needs to be recreated each time a sprite's image is changed
(e.g. if a new image is used or the existing image is rotated).</p>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># Example of mask creation for a sprite.</span>
<span class="n">sprite</span><span class="o">.</span><span class="n">mask</span> <span class="o">=</span> <span class="n">pygame</span><span class="o">.</span><span class="n">mask</span><span class="o">.</span><span class="n">from_surface</span><span class="p">(</span><span class="n">sprite</span><span class="o">.</span><span class="n">image</span><span class="p">)</span>
</pre></div>
</div>
<dl class="field-list simple">
<dt class="field-odd">Returns<span class="colon">:</span></dt>
<dd class="field-odd"><p>first point of collision between the masks or <code class="docutils literal notranslate"><span class="pre">None</span></code> if no
collision</p>
</dd>
<dt class="field-even">Return type<span class="colon">:</span></dt>
<dd class="field-even"><p>tuple(int, int) or NoneType</p>
</dd>
</dl>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.8.0.</span></p>
</div>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.groupcollide">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">groupcollide</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.groupcollide" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Find all sprites that collide between two groups.</span></div>
<div class="line"><span class="signature">groupcollide(group1, group2, dokill1, dokill2, collided = None) -&gt; Sprite_dict</span></div>
</div>
<p>This will find collisions between all the Sprites in two groups.
Collision is determined by comparing the <code class="docutils literal notranslate"><span class="pre">Sprite.rect</span></code> attribute of
each Sprite or by using the collided function if it is not None.</p>
<p>Every Sprite inside group1 is added to the return dictionary. The value for
each item is the list of Sprites in group2 that intersect.</p>
<p>If either dokill argument is True, the colliding Sprites will be removed
from their respective Group.</p>
<p>The collided argument is a callback function used to calculate if two sprites are
colliding. It should take two sprites as values and return a bool value
indicating if they are colliding. If collided is not passed, then all
sprites must have a &quot;rect&quot; value, which is a rectangle of the sprite area,
which will be used to calculate the collision.</p>
</dd></dl>
<dl class="py function definition">
<dt class="sig sig-object py title" id="pygame.sprite.spritecollideany">
<span class="sig-prename descclassname"><span class="pre">pygame.sprite.</span></span><span class="sig-name descname"><span class="pre">spritecollideany</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.sprite.spritecollideany" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">Simple test if a sprite intersects anything in a group.</span></div>
<div class="line"><span class="signature">spritecollideany(sprite, group, collided = None) -&gt; Sprite</span> Collision with the returned sprite.</div>
<div class="line"><span class="signature">spritecollideany(sprite, group, collided = None) -&gt; None</span> No collision</div>
</div>
<p>If the sprite collides with any single sprite in the group, a single
sprite from the group is returned. On no collision None is returned.</p>
<p>If you don't need all the features of the <code class="docutils literal notranslate"><span class="pre">pygame.sprite.spritecollide()</span></code> function, this
function will be a bit quicker.</p>
<p>The collided argument is a callback function used to calculate if two sprites are
colliding. It should take two sprites as values and return a bool value
indicating if they are colliding. If collided is not passed, then all
sprites must have a &quot;rect&quot; value, which is a rectangle of the sprite area,
which will be used to calculate the collision.</p>
</dd></dl>
</dd></dl>
</section>
<br /><br />
<hr />
<a href="https://github.com/pygame/pygame/edit/main/docs/reST/ref\sprite.rst" rel="nofollow">Edit on GitHub</a>
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