Add User Class

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_10" default="true" project-jdk-name="10" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/MyPentago.iml" filepath="$PROJECT_DIR$/MyPentago.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/src" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

.idea/workspace.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="63729159-695b-4499-ba7f-f31e81a0234c" name="Default Changelist" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/src" />
+  </component>
+  <component name="ProjectId" id="1a7vHcpsUDZyxFcq1HeYNw9THGw" />
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showExcludedFiles" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent">
+    <property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="aspect.path.notification.shown" value="true" />
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="63729159-695b-4499-ba7f-f31e81a0234c" name="Default Changelist" comment="" />
+      <created>1586099359973</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1586099359973</updated>
+      <workItem from="1586099364327" duration="87000" />
+      <workItem from="1586105455800" duration="97000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="WindowStateProjectService">
+    <state x="281" y="271" key="com.intellij.ide.util.TipDialog" timestamp="1586105456464">
+      <screen x="0" y="0" width="1536" height="824" />
+    </state>
+    <state x="281" y="271" key="com.intellij.ide.util.TipDialog/0.0.1536.824@0.0.1536.824" timestamp="1586105456464" />
+    <state x="25" y="67" key="new project wizard" timestamp="1586105483065">
+      <screen x="0" y="0" width="1536" height="824" />
+    </state>
+    <state x="25" y="67" key="new project wizard/0.0.1536.824@0.0.1536.824" timestamp="1586105483065" />
+  </component>
+</project>
\ No newline at end of file

MyPentago.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file

src/User.java

+import java.util.ArrayList;
+
+public class User {
+    private ArrayList<Cell> takenCells;
+    private Character color;
+    private int number;
+
+    public User(){
+        takenCells = new ArrayList<Cell>();
+    }
+
+    public boolean cellIsAvailableToTake( Cell cellToChoose ){
+        if (cellToChoose.getColor().equals('O')){
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    public Character getColor() {
+        return color;
+    }
+
+    public void setColor(Character color) {
+        this.color = color;
+    }
+}