From 91b0caf974a03adcab02979ceb56904176cb4cca Mon Sep 17 00:00:00 2001
From: Jeremy Penner <jeremy@sporktania.com>
Date: Mon, 2 May 2011 17:37:45 -0700
Subject: [PATCH] polygonal clickarea

---
 LaserTube.as3proj | 56 +++++++++++++++++++++++++++++++++
 src/ClickArea.as  | 80 +++++++++++++++++++++++++++++++++++++++++++++++
 src/Main.as       | 37 ++++++++++++++++++++++
 3 files changed, 173 insertions(+)
 create mode 100644 LaserTube.as3proj
 create mode 100644 src/ClickArea.as
 create mode 100644 src/Main.as

diff --git a/LaserTube.as3proj b/LaserTube.as3proj
new file mode 100644
index 0000000..7eb343c
--- /dev/null
+++ b/LaserTube.as3proj
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <!-- Output SWF options -->
+  <output>
+    <movie disabled="False" />
+    <movie input="" />
+    <movie path="bin/LaserTube.swf" />
+    <movie fps="30" />
+    <movie width="800" />
+    <movie height="600" />
+    <movie version="10" />
+    <movie background="#FFFFFF" />
+  </output>
+  <!-- Other classes to be compiled into your SWF -->
+  <classpaths>
+    <class path="src" />
+  </classpaths>
+  <!-- Build options -->
+  <build>
+    <option accessible="False" />
+    <option allowSourcePathOverlap="False" />
+    <option benchmark="False" />
+    <option es="False" />
+    <option loadConfig="" />
+    <option optimize="True" />
+    <option showActionScriptWarnings="True" />
+    <option showBindingWarnings="True" />
+    <option showDeprecationWarnings="True" />
+    <option showUnusedTypeSelectorWarnings="True" />
+    <option strict="True" />
+    <option useNetwork="True" />
+    <option useResourceBundleMetadata="True" />
+    <option warnings="True" />
+    <option verboseStackTraces="False" />
+    <option staticLinkRSL="True" />
+    <option additional="" />
+    <option customSDK="" />
+  </build>
+  <!-- Class files to compile (other referenced classes will automatically be included) -->
+  <compileTargets>
+    <compile path="src\Main.as" />
+  </compileTargets>
+  <!-- Paths to exclude from the Project Explorer tree -->
+  <hiddenPaths>
+    <!-- example: <hidden path="..." /> -->
+  </hiddenPaths>
+  <!-- Executed before build -->
+  <preBuildCommand />
+  <!-- Executed after build -->
+  <postBuildCommand alwaysRun="False" />
+  <!-- Other project options -->
+  <options>
+    <option showHiddenPaths="False" />
+    <option testMovie="Default" />
+  </options>
+</project>
\ No newline at end of file
diff --git a/src/ClickArea.as b/src/ClickArea.as
new file mode 100644
index 0000000..6632150
--- /dev/null
+++ b/src/ClickArea.as
@@ -0,0 +1,80 @@
+package  
+{
+	import flash.display.Graphics;
+	import flash.display.Shape;
+	import flash.display.Sprite;
+	import flash.geom.Point;
+	/**
+	 * Represents a spot on the screen where the user can click.
+	 * @author jjp
+	 */
+	public class ClickArea extends Sprite
+	{
+		private var shape:Shape;
+		private var shapeHidden:Shape;
+		private var fHidden:Boolean;
+		public function ClickArea(rgpoint: Array, color:uint, alpha:Number = 1)
+		{
+			super();
+			shape = MakeShape(rgpoint, color, alpha);
+			shapeHidden = MakeShape(rgpoint, color, 0);
+			fHidden = false;
+			addChild(shape);
+		}
+		private function MakeShape(rgpoint:Array, color:uint, alpha:Number):Shape
+		{
+			var shape:Shape = new Shape();
+			shape.graphics.beginFill(color, alpha);
+			var fFirstPoint:Boolean = true;
+			for each (var point:Point in rgpoint)
+			{
+				if (fFirstPoint)
+				{
+					shape.graphics.moveTo(point.x, point.y);
+					fFirstPoint = false;
+				}
+				else
+				{
+					shape.graphics.lineTo(point.x, point.y);
+				}
+			}
+			shape.graphics.lineTo(rgpoint[0].x, rgpoint[0].y);
+			shape.graphics.endFill();
+			return shape;
+		}
+		public function Show():void
+		{
+			if (fHidden)
+			{
+				removeChild(shapeHidden);
+				addChild(shape);
+				fHidden = false;
+			}
+		}
+		public function Hide():void
+		{
+			if (!fHidden)
+			{
+				removeChild(shape);
+				addChild(shapeHidden);
+				fHidden = true;
+			}
+		}
+		public function Toggle(): void
+		{
+			if (fHidden)
+				Show();
+			else
+				Hide();
+		}
+		public function FHit(point:Point):Boolean
+		{
+			var shape:Shape;
+			if (!fHidden)
+				shape = this.shape;
+			else
+				shape = this.shapeHidden;
+			return shape.hitTestPoint(point.x, point.y, true);
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/Main.as b/src/Main.as
new file mode 100644
index 0000000..bbabb85
--- /dev/null
+++ b/src/Main.as
@@ -0,0 +1,37 @@
+package 
+{
+	import flash.display.Sprite;
+	import flash.events.Event;
+	import flash.events.MouseEvent;
+	import flash.geom.Point;
+	
+	/**
+	 * ...
+	 * @author jjp
+	 */
+	public class Main extends Sprite 
+	{
+		private var clickarea:ClickArea;
+		public function Main():void 
+		{
+			clickarea = new ClickArea([new Point(50, 50), new Point(100, 80), new Point(30, 120)], 0x555555);
+			if (stage) init();
+			else addEventListener(Event.ADDED_TO_STAGE, init);
+		}
+		
+		private function init(e:Event = null):void 
+		{
+			removeEventListener(Event.ADDED_TO_STAGE, init);
+			// entry point
+			addChild(clickarea);
+			addEventListener(MouseEvent.CLICK, onClick);
+		}
+		private function onClick(e: MouseEvent): void
+		{
+			if (clickarea.FHit(new Point(e.stageX, e.stageY)))
+				clickarea.Toggle();
+		}
+		
+	}
+	
+}
\ No newline at end of file