diff --git a/.idea/misc.xml b/.idea/misc.xml
index 52c15d7..8656114 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,5 +3,5 @@
   <component name="JavaScriptSettings">
     <option name="languageLevel" value="ES6" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (wozek)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7" project-jdk-type="Python SDK" />
 </project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 95a134d..fcf7da5 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,10 +2,10 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="828778c9-9d97-422f-a727-18ddbd059b85" name="Default Changelist" comment="">
-      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/shelf.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/functions.py" beforeDir="false" afterPath="$PROJECT_DIR$/functions.py" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/main.py" beforeDir="false" afterPath="$PROJECT_DIR$/main.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/wozek.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/wozek.iml" afterDir="false" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -21,6 +21,11 @@
     </option>
   </component>
   <component name="Git.Settings">
+    <option name="RECENT_BRANCH_BY_REPOSITORY">
+      <map>
+        <entry key="$PROJECT_DIR$" value="master" />
+      </map>
+    </option>
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
   <component name="ProjectId" id="1blUxWbA3VMjMFjk8gUnLGMgAoU" />
@@ -29,6 +34,7 @@
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
     <property name="restartRequiresConfirmation" value="false" />
+    <property name="settings.editor.selected.configurable" value="com.jetbrains.python.configuration.PyActiveSdkModuleConfigurable" />
   </component>
   <component name="RunDashboard">
     <option name="ruleStates">
@@ -87,6 +93,10 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
+    <list>
+      <item itemvalue="Python.board" />
+      <item itemvalue="Python.main" />
+    </list>
     <recent_temporary>
       <list>
         <item itemvalue="Python.main" />
@@ -109,6 +119,11 @@
       <workItem from="1589543001064" duration="78000" />
       <workItem from="1589543305930" duration="10474000" />
       <workItem from="1589561555146" duration="3374000" />
+      <workItem from="1589745328635" duration="27000" />
+      <workItem from="1589745409339" duration="739000" />
+      <workItem from="1589752301424" duration="1007000" />
+      <workItem from="1589753322316" duration="835000" />
+      <workItem from="1589814601057" duration="822000" />
     </task>
     <servers />
   </component>
@@ -120,15 +135,17 @@
       <map>
         <entry key="MAIN">
           <value>
-            <State />
+            <State>
+              <option name="COLUMN_ORDER" />
+            </State>
           </value>
         </entry>
       </map>
     </option>
   </component>
   <component name="com.intellij.coverage.CoverageDataManagerImpl">
-    <SUITE FILE_PATH="coverage/wozek$board.coverage" NAME="board Coverage Results" MODIFIED="1589210811600" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
-    <SUITE FILE_PATH="coverage/AL_2020$main.coverage" NAME="main Coverage Results" MODIFIED="1589564478428" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+    <SUITE FILE_PATH="coverage/AL_2020$main.coverage" NAME="main Coverage Results" MODIFIED="1589754127142" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
     <SUITE FILE_PATH="coverage/wozek$main.coverage" NAME="main Coverage Results" MODIFIED="1589556038208" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+    <SUITE FILE_PATH="coverage/wozek$board.coverage" NAME="board Coverage Results" MODIFIED="1589210811600" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/wozek.iml b/.idea/wozek.iml
index 85c7612..fa80a76 100644
--- a/.idea/wozek.iml
+++ b/.idea/wozek.iml
@@ -4,7 +4,7 @@
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="inheritedJdk" />
+    <orderEntry type="jdk" jdkName="Python 3.7" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="TestRunnerService">
diff --git a/shelf.py b/shelf.py
new file mode 100644
index 0000000..eb9e8f7
--- /dev/null
+++ b/shelf.py
@@ -0,0 +1,12 @@
+import pygame
+
+class Shelf:
+
+    def __init__(self, id, field):
+        self.id = id
+        self.field = field
+        self.products = []
+
+    def addProduct(self, sweet):
+        self.products.append(sweet)
+