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<section id="pygame-rect">
<dl class="py class definition">
<dt class="sig sig-object py title" id="pygame.Rect">
<span class="sig-prename descclassname"><span class="pre">pygame.</span></span><span class="sig-name descname"><span class="pre">Rect</span></span><a class="headerlink" href="#pygame.Rect" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">pygame object for storing rectangular coordinates</span></div>
<div class="line"><span class="signature">Rect(left, top, width, height) -&gt; Rect</span></div>
<div class="line"><span class="signature">Rect((left, top), (width, height)) -&gt; Rect</span></div>
<div class="line"><span class="signature">Rect(object) -&gt; Rect</span></div>
</div>
<table class="toc docutils align-default">
<tbody>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.copy">pygame.Rect.copy</a></div>
</td>
<td>—</td>
<td>copy the rectangle</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.move">pygame.Rect.move</a></div>
</td>
<td>—</td>
<td>moves the rectangle</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.move_ip">pygame.Rect.move_ip</a></div>
</td>
<td>—</td>
<td>moves the rectangle, in place</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.inflate">pygame.Rect.inflate</a></div>
</td>
<td>—</td>
<td>grow or shrink the rectangle size</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.inflate_ip">pygame.Rect.inflate_ip</a></div>
</td>
<td>—</td>
<td>grow or shrink the rectangle size, in place</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.scale_by">pygame.Rect.scale_by</a></div>
</td>
<td>—</td>
<td>scale the rectangle by given a multiplier</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.scale_by_ip">pygame.Rect.scale_by_ip</a></div>
</td>
<td>—</td>
<td>grow or shrink the rectangle size, in place</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.update">pygame.Rect.update</a></div>
</td>
<td>—</td>
<td>sets the position and size of the rectangle</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.clamp">pygame.Rect.clamp</a></div>
</td>
<td>—</td>
<td>moves the rectangle inside another</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.clamp_ip">pygame.Rect.clamp_ip</a></div>
</td>
<td>—</td>
<td>moves the rectangle inside another, in place</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.clip">pygame.Rect.clip</a></div>
</td>
<td>—</td>
<td>crops a rectangle inside another</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.clipline">pygame.Rect.clipline</a></div>
</td>
<td>—</td>
<td>crops a line inside a rectangle</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.union">pygame.Rect.union</a></div>
</td>
<td>—</td>
<td>joins two rectangles into one</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.union_ip">pygame.Rect.union_ip</a></div>
</td>
<td>—</td>
<td>joins two rectangles into one, in place</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.unionall">pygame.Rect.unionall</a></div>
</td>
<td>—</td>
<td>the union of many rectangles</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.unionall_ip">pygame.Rect.unionall_ip</a></div>
</td>
<td>—</td>
<td>the union of many rectangles, in place</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.fit">pygame.Rect.fit</a></div>
</td>
<td>—</td>
<td>resize and move a rectangle with aspect ratio</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.normalize">pygame.Rect.normalize</a></div>
</td>
<td>—</td>
<td>correct negative sizes</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.contains">pygame.Rect.contains</a></div>
</td>
<td>—</td>
<td>test if one rectangle is inside another</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collidepoint">pygame.Rect.collidepoint</a></div>
</td>
<td>—</td>
<td>test if a point is inside a rectangle</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.colliderect">pygame.Rect.colliderect</a></div>
</td>
<td>—</td>
<td>test if two rectangles overlap</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collidelist">pygame.Rect.collidelist</a></div>
</td>
<td>—</td>
<td>test if one rectangle in a list intersects</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collidelistall">pygame.Rect.collidelistall</a></div>
</td>
<td>—</td>
<td>test if all rectangles in a list intersect</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collideobjects">pygame.Rect.collideobjects</a></div>
</td>
<td>—</td>
<td>test if any object in a list intersects</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collideobjectsall">pygame.Rect.collideobjectsall</a></div>
</td>
<td>—</td>
<td>test if all objects in a list intersect</td>
</tr>
<tr class="row-even"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collidedict">pygame.Rect.collidedict</a></div>
</td>
<td>—</td>
<td>test if one rectangle in a dictionary intersects</td>
</tr>
<tr class="row-odd"><td><div class="line"><a class="toc reference external" href="rect.html#pygame.Rect.collidedictall">pygame.Rect.collidedictall</a></div>
</td>
<td>—</td>
<td>test if all rectangles in a dictionary intersect</td>
</tr>
</tbody>
</table>
<p>Pygame uses Rect objects to store and manipulate rectangular areas. A Rect
can be created from a combination of left, top, width, and height values.
Rects can also be created from python objects that are already a Rect or
have an attribute named &quot;rect&quot;.</p>
<p>Any pygame function that requires a Rect argument also accepts any of these
values to construct a Rect. This makes it easier to create Rects on the fly
as arguments to functions.</p>
<p>The Rect functions that change the position or size of a Rect return a new
copy of the Rect with the affected changes. The original Rect is not
modified. Some methods have an alternate &quot;in-place&quot; version that returns
None but affects the original Rect. These &quot;in-place&quot; methods are denoted
with the &quot;ip&quot; suffix.</p>
<p>The Rect object has several virtual attributes which can be used to move and
align the Rect:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">x</span><span class="p">,</span><span class="n">y</span>
<span class="n">top</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">bottom</span><span class="p">,</span> <span class="n">right</span>
<span class="n">topleft</span><span class="p">,</span> <span class="n">bottomleft</span><span class="p">,</span> <span class="n">topright</span><span class="p">,</span> <span class="n">bottomright</span>
<span class="n">midtop</span><span class="p">,</span> <span class="n">midleft</span><span class="p">,</span> <span class="n">midbottom</span><span class="p">,</span> <span class="n">midright</span>
<span class="n">center</span><span class="p">,</span> <span class="n">centerx</span><span class="p">,</span> <span class="n">centery</span>
<span class="n">size</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span>
<span class="n">w</span><span class="p">,</span><span class="n">h</span>
</pre></div>
</div>
<p>All of these attributes can be assigned to:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">rect1</span><span class="o">.</span><span class="n">right</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">rect2</span><span class="o">.</span><span class="n">center</span> <span class="o">=</span> <span class="p">(</span><span class="mi">20</span><span class="p">,</span><span class="mi">30</span><span class="p">)</span>
</pre></div>
</div>
<p>Assigning to size, width or height changes the dimensions of the rectangle;
all other assignments move the rectangle without resizing it. Notice that
some attributes are integers and others are pairs of integers.</p>
<p>If a Rect has a nonzero width or height, it will return <code class="docutils literal notranslate"><span class="pre">True</span></code> for a
nonzero test. Some methods return a Rect with 0 size to represent an invalid
rectangle. A Rect with a 0 size will not collide when using collision
detection methods (e.g. <a class="reference internal" href="#pygame.Rect.collidepoint" title="pygame.Rect.collidepoint"><code class="xref py py-meth docutils literal notranslate"><span class="pre">collidepoint()</span></code></a>, <a class="reference internal" href="#pygame.Rect.colliderect" title="pygame.Rect.colliderect"><code class="xref py py-meth docutils literal notranslate"><span class="pre">colliderect()</span></code></a>, etc.).</p>
<p>The coordinates for Rect objects are all integers. The size values can be
programmed to have negative values, but these are considered illegal Rects
for most operations.</p>
<p>There are several collision tests between other rectangles. Most python
containers can be searched for collisions against a single Rect.</p>
<p>The area covered by a Rect does not include the right- and bottom-most edge
of pixels. If one Rect's bottom border is another Rect's top border (i.e.,
rect1.bottom=rect2.top), the two meet exactly on the screen but do not
overlap, and <code class="docutils literal notranslate"><span class="pre">rect1.colliderect(rect2)</span></code> returns false.</p>
<p>The Rect object is also iterable:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">r</span> <span class="o">=</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span> <span class="o">=</span> <span class="n">r</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 1.9.2: </span>The Rect class can be subclassed. Methods such as <code class="docutils literal notranslate"><span class="pre">copy()</span></code> and <code class="docutils literal notranslate"><span class="pre">move()</span></code>
will recognize this and return instances of the subclass.
However, the subclass's <code class="docutils literal notranslate"><span class="pre">__init__()</span></code> method is not called,
and <code class="docutils literal notranslate"><span class="pre">__new__()</span></code> is assumed to take no arguments. So these methods should be
overridden if any extra attributes need to be copied.</p>
</div>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.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.Rect.copy" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">copy the rectangle</span></div>
<div class="line"><span class="signature">copy() -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle having the same position and size as the original.</p>
<p>New in pygame 1.9</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.move">
<span class="sig-name descname"><span class="pre">move</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.move" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">moves the rectangle</span></div>
<div class="line"><span class="signature">move(x, y) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle that is moved by the given offset. The x and y
arguments can be any integer value, positive or negative.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.move_ip">
<span class="sig-name descname"><span class="pre">move_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.move_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">moves the rectangle, in place</span></div>
<div class="line"><span class="signature">move_ip(x, y) -&gt; None</span></div>
</div>
<p>Same as the <code class="docutils literal notranslate"><span class="pre">Rect.move()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.inflate">
<span class="sig-name descname"><span class="pre">inflate</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.inflate" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">grow or shrink the rectangle size</span></div>
<div class="line"><span class="signature">inflate(x, y) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle with the size changed by the given offset. The
rectangle remains centered around its current center. Negative values
will shrink the rectangle. Note, uses integers, if the offset given is
too small(&lt; 2 &gt; -2), center will be off.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.inflate_ip">
<span class="sig-name descname"><span class="pre">inflate_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.inflate_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">grow or shrink the rectangle size, in place</span></div>
<div class="line"><span class="signature">inflate_ip(x, y) -&gt; None</span></div>
</div>
<p>Same as the <code class="docutils literal notranslate"><span class="pre">Rect.inflate()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.scale_by">
<span class="sig-name descname"><span class="pre">scale_by</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.scale_by" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">scale the rectangle by given a multiplier</span></div>
<div class="line"><span class="signature">scale_by(scalar) -&gt; Rect</span></div>
<div class="line"><span class="signature">scale_by(scalex, scaley) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle with the size scaled by the given multipliers.
The rectangle remains centered around its current center. A single
scalar or separate width and height scalars are allowed. Values above
one will increase the size of the rectangle, whereas values between
zero and one will decrease the size of the rectangle.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.scale_by_ip">
<span class="sig-name descname"><span class="pre">scale_by_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.scale_by_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">grow or shrink the rectangle size, in place</span></div>
<div class="line"><span class="signature">scale_by_ip(scalar) -&gt; None</span></div>
<div class="line"><span class="signature">scale_by_ip(scalex, scaley) -&gt; None</span></div>
</div>
<p>Same as the <code class="docutils literal notranslate"><span class="pre">Rect.scale_by()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.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.Rect.update" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">sets the position and size of the rectangle</span></div>
<div class="line"><span class="signature">update(left, top, width, height) -&gt; None</span></div>
<div class="line"><span class="signature">update((left, top), (width, height)) -&gt; None</span></div>
<div class="line"><span class="signature">update(object) -&gt; None</span></div>
</div>
<p>Sets the position and size of the rectangle, in place. See
parameters for <a class="tooltip reference internal" href="#pygame.Rect" title=""><code class="xref py py-meth docutils literal notranslate"><span class="pre">pygame.Rect()</span></code><span class="tooltip-content">pygame object for storing rectangular coordinates</span></a> for the parameters of this function.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.0.1.</span></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.clamp">
<span class="sig-name descname"><span class="pre">clamp</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.clamp" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">moves the rectangle inside another</span></div>
<div class="line"><span class="signature">clamp(Rect) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle that is moved to be completely inside the
argument Rect. If the rectangle is too large to fit inside, it is
centered inside the argument Rect, but its size is not changed.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.clamp_ip">
<span class="sig-name descname"><span class="pre">clamp_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.clamp_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">moves the rectangle inside another, in place</span></div>
<div class="line"><span class="signature">clamp_ip(Rect) -&gt; None</span></div>
</div>
<p>Same as the <code class="docutils literal notranslate"><span class="pre">Rect.clamp()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.clip">
<span class="sig-name descname"><span class="pre">clip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.clip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">crops a rectangle inside another</span></div>
<div class="line"><span class="signature">clip(Rect) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle that is cropped to be completely inside the
argument Rect. If the two rectangles do not overlap to begin with, a Rect
with 0 size is returned.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.clipline">
<span class="sig-name descname"><span class="pre">clipline</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.clipline" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">crops a line inside a rectangle</span></div>
<div class="line"><span class="signature">clipline(x1, y1, x2, y2) -&gt; ((cx1, cy1), (cx2, cy2))</span></div>
<div class="line"><span class="signature">clipline(x1, y1, x2, y2) -&gt; ()</span></div>
<div class="line"><span class="signature">clipline((x1, y1), (x2, y2)) -&gt; ((cx1, cy1), (cx2, cy2))</span></div>
<div class="line"><span class="signature">clipline((x1, y1), (x2, y2)) -&gt; ()</span></div>
<div class="line"><span class="signature">clipline((x1, y1, x2, y2)) -&gt; ((cx1, cy1), (cx2, cy2))</span></div>
<div class="line"><span class="signature">clipline((x1, y1, x2, y2)) -&gt; ()</span></div>
<div class="line"><span class="signature">clipline(((x1, y1), (x2, y2))) -&gt; ((cx1, cy1), (cx2, cy2))</span></div>
<div class="line"><span class="signature">clipline(((x1, y1), (x2, y2))) -&gt; ()</span></div>
</div>
<p>Returns the coordinates of a line that is cropped to be completely inside
the rectangle. If the line does not overlap the rectangle, then an empty
tuple is returned.</p>
<p>The line to crop can be any of the following formats (floats can be used
in place of ints, but they will be truncated):</p>
<blockquote>
<div><ul class="simple">
<li><p>four ints</p></li>
<li><p>2 lists/tuples/Vector2s of 2 ints</p></li>
<li><p>a list/tuple of four ints</p></li>
<li><p>a list/tuple of 2 lists/tuples/Vector2s of 2 ints</p></li>
</ul>
</div></blockquote>
<dl class="field-list simple">
<dt class="field-odd">Returns<span class="colon">:</span></dt>
<dd class="field-odd"><p>a tuple with the coordinates of the given line cropped to be
completely inside the rectangle is returned, if the given line does
not overlap the rectangle, an empty tuple is returned</p>
</dd>
<dt class="field-even">Return type<span class="colon">:</span></dt>
<dd class="field-even"><p>tuple(tuple(int, int), tuple(int, int)) or ()</p>
</dd>
<dt class="field-odd">Raises<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>TypeError</strong> -- if the line coordinates are not given as one of the
above described line formats</p>
</dd>
</dl>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>This method can be used for collision detection between a rect and a
line. See example code below.</p>
</div>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>The <code class="docutils literal notranslate"><span class="pre">rect.bottom</span></code> and <code class="docutils literal notranslate"><span class="pre">rect.right</span></code> attributes of a
<a class="tooltip reference internal" href="#pygame.Rect" title=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">pygame.Rect</span></code><span class="tooltip-content">pygame object for storing rectangular coordinates</span></a> always lie one pixel outside of its actual border.</p>
</div>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1"># Example using clipline().</span>
<span class="n">clipped_line</span> <span class="o">=</span> <span class="n">rect</span><span class="o">.</span><span class="n">clipline</span><span class="p">(</span><span class="n">line</span><span class="p">)</span>
<span class="k">if</span> <span class="n">clipped_line</span><span class="p">:</span>
<span class="c1"># If clipped_line is not an empty tuple then the line</span>
<span class="c1"># collides/overlaps with the rect. The returned value contains</span>
<span class="c1"># the endpoints of the clipped line.</span>
<span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">=</span> <span class="n">clipped_line</span>
<span class="n">x1</span><span class="p">,</span> <span class="n">y1</span> <span class="o">=</span> <span class="n">start</span>
<span class="n">x2</span><span class="p">,</span> <span class="n">y2</span> <span class="o">=</span> <span class="n">end</span>
<span class="k">else</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;No clipping. The line is fully outside the rect.&quot;</span><span class="p">)</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.0.0.</span></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.union">
<span class="sig-name descname"><span class="pre">union</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.union" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">joins two rectangles into one</span></div>
<div class="line"><span class="signature">union(Rect) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle that completely covers the area of the two
provided rectangles. There may be area inside the new Rect that is not
covered by the originals.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.union_ip">
<span class="sig-name descname"><span class="pre">union_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.union_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">joins two rectangles into one, in place</span></div>
<div class="line"><span class="signature">union_ip(Rect) -&gt; None</span></div>
</div>
<p>Same as the <code class="docutils literal notranslate"><span class="pre">Rect.union()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.unionall">
<span class="sig-name descname"><span class="pre">unionall</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.unionall" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">the union of many rectangles</span></div>
<div class="line"><span class="signature">unionall(Rect_sequence) -&gt; Rect</span></div>
</div>
<p>Returns the union of one rectangle with a sequence of many rectangles.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.unionall_ip">
<span class="sig-name descname"><span class="pre">unionall_ip</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.unionall_ip" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">the union of many rectangles, in place</span></div>
<div class="line"><span class="signature">unionall_ip(Rect_sequence) -&gt; None</span></div>
</div>
<p>The same as the <code class="docutils literal notranslate"><span class="pre">Rect.unionall()</span></code> method, but operates in place.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.fit">
<span class="sig-name descname"><span class="pre">fit</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.fit" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">resize and move a rectangle with aspect ratio</span></div>
<div class="line"><span class="signature">fit(Rect) -&gt; Rect</span></div>
</div>
<p>Returns a new rectangle that is moved and resized to fit another. The
aspect ratio of the original Rect is preserved, so the new rectangle may
be smaller than the target in either width or height.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.normalize">
<span class="sig-name descname"><span class="pre">normalize</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.normalize" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">correct negative sizes</span></div>
<div class="line"><span class="signature">normalize() -&gt; None</span></div>
</div>
<p>This will flip the width or height of a rectangle if it has a negative
size. The rectangle will remain in the same place, with only the sides
swapped.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.contains">
<span class="sig-name descname"><span class="pre">contains</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.contains" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if one rectangle is inside another</span></div>
<div class="line"><span class="signature">contains(Rect) -&gt; bool</span></div>
</div>
<p>Returns true when the argument is completely inside the Rect.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collidepoint">
<span class="sig-name descname"><span class="pre">collidepoint</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collidepoint" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if a point is inside a rectangle</span></div>
<div class="line"><span class="signature">collidepoint(x, y) -&gt; bool</span></div>
<div class="line"><span class="signature">collidepoint((x,y)) -&gt; bool</span></div>
</div>
<p>Returns true if the given point is inside the rectangle. A point along
the right or bottom edge is not considered to be inside the rectangle.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>For collision detection between a rect and a line the <a class="reference internal" href="#pygame.Rect.clipline" title="pygame.Rect.clipline"><code class="xref py py-meth docutils literal notranslate"><span class="pre">clipline()</span></code></a>
method can be used.</p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.colliderect">
<span class="sig-name descname"><span class="pre">colliderect</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.colliderect" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if two rectangles overlap</span></div>
<div class="line"><span class="signature">colliderect(Rect) -&gt; bool</span></div>
</div>
<p>Returns true if any portion of either rectangle overlap (except the
top+bottom or left+right edges).</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>For collision detection between a rect and a line the <a class="reference internal" href="#pygame.Rect.clipline" title="pygame.Rect.clipline"><code class="xref py py-meth docutils literal notranslate"><span class="pre">clipline()</span></code></a>
method can be used.</p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collidelist">
<span class="sig-name descname"><span class="pre">collidelist</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collidelist" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if one rectangle in a list intersects</span></div>
<div class="line"><span class="signature">collidelist(list) -&gt; index</span></div>
</div>
<p>Test whether the rectangle collides with any in a sequence of rectangles.
The index of the first collision found is returned. If no collisions are
found an index of -1 is returned.</p>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collidelistall">
<span class="sig-name descname"><span class="pre">collidelistall</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collidelistall" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if all rectangles in a list intersect</span></div>
<div class="line"><span class="signature">collidelistall(list) -&gt; indices</span></div>
</div>
<p>Returns a list of all the indices that contain rectangles that collide
with the Rect. If no intersecting rectangles are found, an empty list is
returned.</p>
<p>Not only Rects are valid arguments, but these are all valid calls:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="n">Rect</span> <span class="o">=</span> <span class="n">pygame</span><span class="o">.</span><span class="n">Rect</span>
<span class="linenos"> 2</span><span class="n">r</span> <span class="o">=</span> <span class="n">Rect</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="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span>
<span class="linenos"> 3</span>
<span class="linenos"> 4</span><span class="n">list_of_rects</span> <span class="o">=</span> <span class="p">[</span><span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">)]</span>
<span class="linenos"> 5</span><span class="n">indices0</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_rects</span><span class="p">)</span>
<span class="linenos"> 6</span>
<span class="linenos"> 7</span><span class="n">list_of_lists</span> <span class="o">=</span> <span class="p">[[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">],</span> <span class="p">[</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">]]</span>
<span class="linenos"> 8</span><span class="n">indices1</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_lists</span><span class="p">)</span>
<span class="linenos"> 9</span>
<span class="linenos">10</span><span class="n">list_of_tuples</span> <span class="o">=</span> <span class="p">[(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">)]</span>
<span class="linenos">11</span><span class="n">indices2</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_tuples</span><span class="p">)</span>
<span class="linenos">12</span>
<span class="linenos">13</span><span class="n">list_of_double_tuples</span> <span class="o">=</span> <span class="p">[((</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)),</span> <span class="p">((</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">))]</span>
<span class="linenos">14</span><span class="n">indices3</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_double_tuples</span><span class="p">)</span>
<span class="linenos">15</span>
<span class="linenos">16</span><span class="k">class</span> <span class="nc">ObjectWithRectAttribute</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="linenos">17</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">r</span><span class="p">):</span>
<span class="linenos">18</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span> <span class="o">=</span> <span class="n">r</span>
<span class="linenos">19</span>
<span class="linenos">20</span><span class="n">list_of_object_with_rect_attribute</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos">21</span> <span class="n">ObjectWithRectAttribute</span><span class="p">(</span><span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)),</span>
<span class="linenos">22</span> <span class="n">ObjectWithRectAttribute</span><span class="p">(</span><span class="n">Rect</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">)),</span>
<span class="linenos">23</span><span class="p">]</span>
<span class="linenos">24</span><span class="n">indices4</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_object_with_rect_attribute</span><span class="p">)</span>
<span class="linenos">25</span>
<span class="linenos">26</span><span class="k">class</span> <span class="nc">ObjectWithCallableRectAttribute</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="linenos">27</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">r</span><span class="p">):</span>
<span class="linenos">28</span> <span class="bp">self</span><span class="o">.</span><span class="n">_rect</span> <span class="o">=</span> <span class="n">r</span>
<span class="linenos">29</span>
<span class="linenos">30</span> <span class="k">def</span> <span class="nf">rect</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="linenos">31</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_rect</span>
<span class="linenos">32</span>
<span class="linenos">33</span><span class="n">list_of_object_with_callable_rect</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos">34</span> <span class="n">ObjectWithCallableRectAttribute</span><span class="p">(</span><span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)),</span>
<span class="linenos">35</span> <span class="n">ObjectWithCallableRectAttribute</span><span class="p">(</span><span class="n">Rect</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">)),</span>
<span class="linenos">36</span><span class="p">]</span>
<span class="linenos">37</span><span class="n">indices5</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collidelistall</span><span class="p">(</span><span class="n">list_of_object_with_callable_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.Rect.collideobjects">
<span class="sig-name descname"><span class="pre">collideobjects</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collideobjects" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if any object in a list intersects</span></div>
<div class="line"><span class="signature">collideobjects(rect_list) -&gt; object</span></div>
<div class="line"><span class="signature">collideobjects(obj_list, key=func) -&gt; object</span></div>
</div>
<p><strong>Experimental:</strong> feature still in development available for testing and feedback. It may change.
<a class="reference external" href="https://github.com/pygame/pygame/pull/3026">Please leave collideobjects feedback with authors</a></p>
<p>Test whether the rectangle collides with any object in the sequence.
The object of the first collision found is returned. If no collisions are
found then <code class="docutils literal notranslate"><span class="pre">None</span></code> is returned</p>
<p>If key is given, then it should be a method taking an object from the list
as input and returning a rect like object e.g. <code class="docutils literal notranslate"><span class="pre">lambda</span> <span class="pre">obj:</span> <span class="pre">obj.rectangle</span></code>.
If an object has multiple attributes of type Rect then key could return one
of them.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="n">r</span> <span class="o">=</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span>
<span class="linenos"> 2</span>
<span class="linenos"> 3</span><span class="n">rects</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos"> 4</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span>
<span class="linenos"> 5</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span>
<span class="linenos"> 6</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">15</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="linenos"> 7</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="linenos"> 8</span><span class="p">]</span>
<span class="linenos"> 9</span>
<span class="linenos">10</span><span class="n">result</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjects</span><span class="p">(</span><span class="n">rects</span><span class="p">)</span> <span class="c1"># -&gt; &lt;rect(1, 1, 10, 10)&gt;</span>
<span class="linenos">11</span><span class="nb">print</span><span class="p">(</span><span class="n">result</span><span class="p">)</span>
<span class="linenos">12</span>
<span class="linenos">13</span><span class="k">class</span> <span class="nc">ObjectWithSomRectAttribute</span><span class="p">:</span>
<span class="linenos">14</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">name</span><span class="p">,</span> <span class="n">collision_box</span><span class="p">,</span> <span class="n">draw_rect</span><span class="p">):</span>
<span class="linenos">15</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
<span class="linenos">16</span> <span class="bp">self</span><span class="o">.</span><span class="n">draw_rect</span> <span class="o">=</span> <span class="n">draw_rect</span>
<span class="linenos">17</span> <span class="bp">self</span><span class="o">.</span><span class="n">collision_box</span> <span class="o">=</span> <span class="n">collision_box</span>
<span class="linenos">18</span>
<span class="linenos">19</span> <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="linenos">20</span> <span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;&lt;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s1">(&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1">&quot;, </span><span class="si">{</span><span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">collision_box</span><span class="p">)</span><span class="si">}</span><span class="s1">, </span><span class="si">{</span><span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">draw_rect</span><span class="p">)</span><span class="si">}</span><span class="s1">)&gt;&#39;</span>
<span class="linenos">21</span>
<span class="linenos">22</span><span class="n">objects</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos">23</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;A&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">15</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">150</span><span class="p">,</span> <span class="mi">150</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">24</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;B&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">300</span><span class="p">,</span> <span class="mi">300</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">25</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;C&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">200</span><span class="p">,</span> <span class="mi">500</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">26</span><span class="p">]</span>
<span class="linenos">27</span>
<span class="linenos">28</span><span class="c1"># collision = r.collideobjects(objects) # this does not work because the items in the list are no Rect like object</span>
<span class="linenos">29</span><span class="n">collision</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjects</span><span class="p">(</span>
<span class="linenos">30</span> <span class="n">objects</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">o</span><span class="p">:</span> <span class="n">o</span><span class="o">.</span><span class="n">collision_box</span>
<span class="linenos">31</span><span class="p">)</span> <span class="c1"># -&gt; &lt;ObjectWithSomRectAttribute(&quot;B&quot;, [1, 1, 10, 10], [300, 300, 50, 50])&gt;</span>
<span class="linenos">32</span><span class="nb">print</span><span class="p">(</span><span class="n">collision</span><span class="p">)</span>
<span class="linenos">33</span>
<span class="linenos">34</span><span class="n">screen_rect</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjects</span><span class="p">(</span><span class="n">objects</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">o</span><span class="p">:</span> <span class="n">o</span><span class="o">.</span><span class="n">draw_rect</span><span class="p">)</span> <span class="c1"># -&gt; None</span>
<span class="linenos">35</span><span class="nb">print</span><span class="p">(</span><span class="n">screen_rect</span><span class="p">)</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.1.3.</span></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collideobjectsall">
<span class="sig-name descname"><span class="pre">collideobjectsall</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collideobjectsall" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if all objects in a list intersect</span></div>
<div class="line"><span class="signature">collideobjectsall(rect_list) -&gt; objects</span></div>
<div class="line"><span class="signature">collideobjectsall(obj_list, key=func) -&gt; objects</span></div>
</div>
<p><strong>Experimental:</strong> feature still in development available for testing and feedback. It may change.
<a class="reference external" href="https://github.com/pygame/pygame/pull/3026">Please leave collideobjectsall feedback with authors</a></p>
<p>Returns a list of all the objects that contain rectangles that collide
with the Rect. If no intersecting objects are found, an empty list is
returned.</p>
<p>If key is given, then it should be a method taking an object from the list
as input and returning a rect like object e.g. <code class="docutils literal notranslate"><span class="pre">lambda</span> <span class="pre">obj:</span> <span class="pre">obj.rectangle</span></code>.
If an object has multiple attributes of type Rect then key could return one
of them.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="n">r</span> <span class="o">=</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">)</span>
<span class="linenos"> 2</span>
<span class="linenos"> 3</span><span class="n">rects</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos"> 4</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span>
<span class="linenos"> 5</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span>
<span class="linenos"> 6</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">15</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="linenos"> 7</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span>
<span class="linenos"> 8</span><span class="p">]</span>
<span class="linenos"> 9</span>
<span class="linenos">10</span><span class="n">result</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjectsall</span><span class="p">(</span>
<span class="linenos">11</span> <span class="n">rects</span>
<span class="linenos">12</span><span class="p">)</span> <span class="c1"># -&gt; [&lt;rect(1, 1, 10, 10)&gt;, &lt;rect(5, 5, 10, 10)&gt;, &lt;rect(2, 2, 1, 1)&gt;]</span>
<span class="linenos">13</span><span class="nb">print</span><span class="p">(</span><span class="n">result</span><span class="p">)</span>
<span class="linenos">14</span>
<span class="linenos">15</span><span class="k">class</span> <span class="nc">ObjectWithSomRectAttribute</span><span class="p">:</span>
<span class="linenos">16</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">name</span><span class="p">,</span> <span class="n">collision_box</span><span class="p">,</span> <span class="n">draw_rect</span><span class="p">):</span>
<span class="linenos">17</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
<span class="linenos">18</span> <span class="bp">self</span><span class="o">.</span><span class="n">draw_rect</span> <span class="o">=</span> <span class="n">draw_rect</span>
<span class="linenos">19</span> <span class="bp">self</span><span class="o">.</span><span class="n">collision_box</span> <span class="o">=</span> <span class="n">collision_box</span>
<span class="linenos">20</span>
<span class="linenos">21</span> <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="linenos">22</span> <span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;&lt;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}</span><span class="s1">(&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1">&quot;, </span><span class="si">{</span><span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">collision_box</span><span class="p">)</span><span class="si">}</span><span class="s1">, </span><span class="si">{</span><span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">draw_rect</span><span class="p">)</span><span class="si">}</span><span class="s1">)&gt;&#39;</span>
<span class="linenos">23</span>
<span class="linenos">24</span><span class="n">objects</span> <span class="o">=</span> <span class="p">[</span>
<span class="linenos">25</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;A&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">300</span><span class="p">,</span> <span class="mi">300</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">26</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;B&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">10</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">200</span><span class="p">,</span> <span class="mi">500</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">27</span> <span class="n">ObjectWithSomRectAttribute</span><span class="p">(</span><span class="s2">&quot;C&quot;</span><span class="p">,</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">15</span><span class="p">,</span> <span class="mi">15</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">),</span> <span class="n">Rect</span><span class="p">(</span><span class="mi">150</span><span class="p">,</span> <span class="mi">150</span><span class="p">,</span> <span class="mi">50</span><span class="p">,</span> <span class="mi">50</span><span class="p">)),</span>
<span class="linenos">28</span><span class="p">]</span>
<span class="linenos">29</span>
<span class="linenos">30</span><span class="c1"># collisions = r.collideobjectsall(objects) # this does not work because ObjectWithSomRectAttribute is not a Rect like object</span>
<span class="linenos">31</span><span class="n">collisions</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjectsall</span><span class="p">(</span>
<span class="linenos">32</span> <span class="n">objects</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">o</span><span class="p">:</span> <span class="n">o</span><span class="o">.</span><span class="n">collision_box</span>
<span class="linenos">33</span><span class="p">)</span> <span class="c1"># -&gt; [&lt;ObjectWithSomRectAttribute(&quot;A&quot;, [1, 1, 10, 10], [300, 300, 50, 50])&gt;, &lt;ObjectWithSomRectAttribute(&quot;B&quot;, [5, 5, 10, 10], [200, 500, 50, 50])&gt;]</span>
<span class="linenos">34</span><span class="nb">print</span><span class="p">(</span><span class="n">collisions</span><span class="p">)</span>
<span class="linenos">35</span>
<span class="linenos">36</span><span class="n">screen_rects</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">collideobjectsall</span><span class="p">(</span><span class="n">objects</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">o</span><span class="p">:</span> <span class="n">o</span><span class="o">.</span><span class="n">draw_rect</span><span class="p">)</span> <span class="c1"># -&gt; []</span>
<span class="linenos">37</span><span class="nb">print</span><span class="p">(</span><span class="n">screen_rects</span><span class="p">)</span>
</pre></div>
</div>
<div class="versionadded">
<p><span class="versionmodified added">New in pygame 2.1.3.</span></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collidedict">
<span class="sig-name descname"><span class="pre">collidedict</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collidedict" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if one rectangle in a dictionary intersects</span></div>
<div class="line"><span class="signature">collidedict(dict) -&gt; (key, value)</span></div>
<div class="line"><span class="signature">collidedict(dict) -&gt; None</span></div>
<div class="line"><span class="signature">collidedict(dict, use_values=0) -&gt; (key, value)</span></div>
<div class="line"><span class="signature">collidedict(dict, use_values=0) -&gt; None</span></div>
</div>
<p>Returns the first key and value pair that intersects with the calling
Rect object. If no collisions are found, <code class="docutils literal notranslate"><span class="pre">None</span></code> is returned. If
<code class="docutils literal notranslate"><span class="pre">use_values</span></code> is 0 (default) then the dict's keys will be used in the
collision detection, otherwise the dict's values will be used.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Rect objects cannot be used as keys in a dictionary (they are not
hashable), so they must be converted to a tuple.
e.g. <code class="docutils literal notranslate"><span class="pre">rect.collidedict({tuple(key_rect)</span> <span class="pre">:</span> <span class="pre">value})</span></code></p>
</div>
</dd></dl>
<dl class="py method definition">
<dt class="sig sig-object py title" id="pygame.Rect.collidedictall">
<span class="sig-name descname"><span class="pre">collidedictall</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pygame.Rect.collidedictall" title="Permalink to this definition"></a></dt>
<dd><div class="line-block">
<div class="line"><span class="summaryline">test if all rectangles in a dictionary intersect</span></div>
<div class="line"><span class="signature">collidedictall(dict) -&gt; [(key, value), ...]</span></div>
<div class="line"><span class="signature">collidedictall(dict, use_values=0) -&gt; [(key, value), ...]</span></div>
</div>
<p>Returns a list of all the key and value pairs that intersect with the
calling Rect object. If no collisions are found an empty list is returned.
If <code class="docutils literal notranslate"><span class="pre">use_values</span></code> is 0 (default) then the dict's keys will be used in the
collision detection, otherwise the dict's values will be used.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Rect objects cannot be used as keys in a dictionary (they are not
hashable), so they must be converted to a tuple.
e.g. <code class="docutils literal notranslate"><span class="pre">rect.collidedictall({tuple(key_rect)</span> <span class="pre">:</span> <span class="pre">value})</span></code></p>
</div>
</dd></dl>
</dd></dl>
</section>
<br /><br />
<hr />
<a href="https://github.com/pygame/pygame/edit/main/docs/reST/ref\rect.rst" rel="nofollow">Edit on GitHub</a>
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