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2016-07-01 15:57:13 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.PrimitiveShader.html">PrimitiveShader</a>
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2015-03-23 23:46:30 +00:00
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2014-11-15 20:01:46 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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2014-11-15 20:01:46 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.StripShader.html">StripShader</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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2014-11-15 20:01:46 +00:00
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<a href="PIXI.TilingSprite.html">TilingSprite</a>
2014-11-15 20:01:46 +00:00
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2014-11-25 00:23:44 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.WebGLBlendModeManager.html">WebGLBlendModeManager</a>
2014-11-25 00:23:44 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.WebGLFastSpriteBatch.html">WebGLFastSpriteBatch</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.WebGLFilterManager.html">WebGLFilterManager</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<a href="PIXI.WebGLRenderer.html">WebGLRenderer</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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<a href="global.html" class="dropdown-toggle" data-toggle="dropdown">Global<b
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<a href="global.html#ANGLE_UP">ANGLE_UP</a>
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2015-07-22 14:31:30 +00:00
<a href="global.html#AUTO">AUTO</a>
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<a href="global.html#BITMAPDATA">BITMAPDATA</a>
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<a href="global.html#BITMAPTEXT">BITMAPTEXT</a>
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<a href="global.html#blendModes">blendModes</a>
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2016-06-17 00:11:24 +00:00
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<a href="global.html#CENTER">CENTER</a>
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<a href="global.html#CIRCLE">CIRCLE</a>
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<a href="global.html#CREATURE">CREATURE</a>
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<a href="global.html#DOWN">DOWN</a>
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<a href="global.html#emit">emit</a>
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2014-11-15 20:01:46 +00:00
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2016-06-09 16:13:31 +00:00
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<a href="global.html#HORIZONTAL">HORIZONTAL</a>
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2014-11-15 20:01:46 +00:00
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2016-06-09 16:13:31 +00:00
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<a href="global.html#LANDSCAPE">LANDSCAPE</a>
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<a href="global.html#LEFT">LEFT</a>
</li>
2016-06-17 00:11:24 +00:00
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<a href="global.html#LEFT_BOTTOM">LEFT_BOTTOM</a>
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<a href="global.html#LEFT_TOP">LEFT_TOP</a>
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2015-07-22 14:31:30 +00:00
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<a href="global.html#LINE">LINE</a>
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2016-08-26 00:18:47 +00:00
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<a href="global.html#listeners">listeners</a>
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2015-07-22 14:31:30 +00:00
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<a href="global.html#MATRIX">MATRIX</a>
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2016-08-26 00:18:47 +00:00
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<a href="global.html#mixin">mixin</a>
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2015-07-22 14:31:30 +00:00
<li class="class-depth-0">
<a href="global.html#NONE">NONE</a>
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2016-08-26 00:18:47 +00:00
<li class="class-depth-0">
<a href="global.html#off">off</a>
</li>
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<a href="global.html#on">on</a>
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<a href="global.html#once">once</a>
</li>
2016-02-08 17:01:36 +00:00
<li class="class-depth-0">
<a href="global.html#PENDING_ATLAS">PENDING_ATLAS</a>
</li>
2016-08-26 00:18:47 +00:00
<li class="class-depth-2">
<a href="global.html#Phaser.Path#numPointsreturn%257Bnumber%257DThetotalnumberofPathPointsinthisPath.">Phaser.Path#numPoints
return {number} The total number of PathPoints in this Path.</a>
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2015-07-22 14:31:30 +00:00
<li class="class-depth-0">
<a href="global.html#POINT">POINT</a>
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<a href="global.html#POINTER">POINTER</a>
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<a href="global.html#POLYGON">POLYGON</a>
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2016-06-09 16:13:31 +00:00
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<a href="global.html#PORTRAIT">PORTRAIT</a>
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2015-07-22 14:31:30 +00:00
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<a href="global.html#RECTANGLE">RECTANGLE</a>
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2016-08-26 00:18:47 +00:00
<li class="class-depth-0">
<a href="global.html#removeAllListeners">removeAllListeners</a>
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2015-07-22 14:31:30 +00:00
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<a href="global.html#RENDERTEXTURE">RENDERTEXTURE</a>
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<a href="global.html#RETROFONT">RETROFONT</a>
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<a href="global.html#RIGHT">RIGHT</a>
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2016-06-17 00:11:24 +00:00
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<a href="global.html#RIGHT_BOTTOM">RIGHT_BOTTOM</a>
</li>
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<a href="global.html#RIGHT_CENTER">RIGHT_CENTER</a>
</li>
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<a href="global.html#RIGHT_TOP">RIGHT_TOP</a>
</li>
2015-07-22 14:31:30 +00:00
<li class="class-depth-0">
<a href="global.html#ROPE">ROPE</a>
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<a href="global.html#ROUNDEDRECTANGLE">ROUNDEDRECTANGLE</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
<li class="class-depth-0">
<a href="global.html#scaleModes">scaleModes</a>
2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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2015-07-22 14:31:30 +00:00
<a href="global.html#SPRITE">SPRITE</a>
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<a href="global.html#SPRITEBATCH">SPRITEBATCH</a>
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2016-08-26 00:18:47 +00:00
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<a href="global.html#stopImmediatePropagation">stopImmediatePropagation</a>
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<a href="global.html#stopPropagation">stopPropagation</a>
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2015-07-22 14:31:30 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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2015-07-22 14:31:30 +00:00
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2014-11-15 20:01:46 +00:00
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2015-03-23 23:46:30 +00:00
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2015-07-22 14:31:30 +00:00
<a href="global.html#TILEMAPLAYER">TILEMAPLAYER</a>
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2016-06-17 00:11:24 +00:00
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<a href="global.html#TOP_CENTER">TOP_CENTER</a>
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<a href="global.html#TOP_LEFT">TOP_LEFT</a>
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<a href="global.html#TOP_RIGHT">TOP_RIGHT</a>
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2015-07-22 14:31:30 +00:00
<li class="class-depth-0">
<a href="global.html#UP">UP</a>
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<a href="global.html#VERSION">VERSION</a>
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2016-06-09 16:13:31 +00:00
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<a href="global.html#VERTICAL">VERTICAL</a>
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2015-07-22 14:31:30 +00:00
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<a href="global.html#VIDEO">VIDEO</a>
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<a href="global.html#WEBGL_FILTER">WEBGL_FILTER</a>
2014-11-15 20:01:46 +00:00
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2014-11-25 00:23:44 +00:00
2014-11-15 20:01:46 +00:00
<li class="dropdown">
2014-11-25 00:23:44 +00:00
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Core<b class="caret"></b></a>
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2014-12-03 10:39:11 +00:00
<li class="class-depth-1"><a href="Phaser.Game.html">Game</a></li>
2014-11-25 00:23:44 +00:00
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2015-07-22 14:31:30 +00:00
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2014-11-25 00:23:44 +00:00
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<li class="class-depth-1"><a href="Phaser.SoundManager.html">Sound Manager</a></li>
2015-01-06 06:57:25 +00:00
<li class="class-depth-1"><a href="Phaser.Input.html">Input Manager</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.ScaleManager.html">Scale Manager</a></li>
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2014-11-15 20:01:46 +00:00
2014-11-25 00:23:44 +00:00
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Game Objects<b class="caret"></b></a>
2014-11-15 20:01:46 +00:00
<ul class="dropdown-menu ">
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.GameObjectFactory.html">Factory (game.add)</a></li>
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<li class="class-depth-1"><a href="Phaser.Sprite.html">Sprite</a></li>
<li class="class-depth-1"><a href="Phaser.Image.html">Image</a></li>
<li class="class-depth-1"><a href="Phaser.Sound.html">Sound</a></li>
2015-07-22 14:31:30 +00:00
<li class="class-depth-1"><a href="Phaser.Video.html">Video</a></li>
2015-01-06 06:57:25 +00:00
<li class="class-depth-1"><a href="Phaser.Particles.Arcade.Emitter.html">Particle Emitter</a></li>
2014-12-03 10:39:11 +00:00
<li class="class-depth-1"><a href="Phaser.Particle.html">Particle</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.Text.html">Text</a></li>
<li class="class-depth-1"><a href="Phaser.Tween.html">Tween</a></li>
<li class="class-depth-1"><a href="Phaser.BitmapText.html">BitmapText</a></li>
<li class="class-depth-1"><a href="Phaser.Tilemap.html">Tilemap</a></li>
<li class="class-depth-1"><a href="Phaser.BitmapData.html">BitmapData</a></li>
<li class="class-depth-1"><a href="Phaser.RetroFont.html">RetroFont</a></li>
<li class="class-depth-1"><a href="Phaser.Button.html">Button</a></li>
<li class="class-depth-1"><a href="Phaser.Animation.html">Animation</a></li>
<li class="class-depth-1"><a href="Phaser.Graphics.html">Graphics</a></li>
<li class="class-depth-1"><a href="Phaser.RenderTexture.html">RenderTexture</a></li>
<li class="class-depth-1"><a href="Phaser.TileSprite.html">TileSprite</a></li>
</ul>
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<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Geometry<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.Circle.html">Circle</a></li>
<li class="class-depth-1"><a href="Phaser.Ellipse.html">Ellipse</a></li>
2015-07-22 14:31:30 +00:00
<li class="class-depth-1"><a href="Phaser.Line.html">Line</a></li>
<li class="class-depth-1"><a href="Phaser.Matrix.html">Matrix</a></li>
<li class="class-depth-1"><a href="Phaser.Point.html">Point</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.Polygon.html">Polygon</a></li>
2015-07-22 14:31:30 +00:00
<li class="class-depth-1"><a href="Phaser.Rectangle.html">Rectangle</a></li>
<li class="class-depth-1"><a href="Phaser.RoundedRectangle.html">Rounded Rectangle</a></li>
2014-11-25 00:23:44 +00:00
</ul>
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2014-11-15 20:01:46 +00:00
2014-11-25 00:23:44 +00:00
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Physics<b class="caret"></b></a>
<ul class="dropdown-menu ">
<li class="class-depth-1"><a href="Phaser.Physics.Arcade.html">Arcade Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.Arcade.Body.html">Body</a></li>
2016-06-17 00:11:24 +00:00
<li class="class-depth-2"><a href="Phaser.Weapon.html">Weapon</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.Physics.P2.html">P2 Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.Body.html">Body</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.Spring.html">Spring</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.CollisionGroup.html">CollisionGroup</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.P2.ContactMaterial.html">ContactMaterial</a></li>
<li class="class-depth-1"><a href="Phaser.Physics.Ninja.html">Ninja Physics</a></li>
<li class="class-depth-2"><a href="Phaser.Physics.Body.html">Body</a></li>
2014-11-15 20:01:46 +00:00
</ul>
</li>
2014-11-25 00:23:44 +00:00
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Input<b class="caret"></b></a>
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<li class="class-depth-1"><a href="Phaser.InputHandler.html">Input Handler</a></li>
<li class="class-depth-1"><a href="Phaser.Pointer.html">Pointer</a></li>
2015-07-22 14:31:30 +00:00
<li class="class-depth-1"><a href="Phaser.DeviceButton.html">Device Button</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.Mouse.html">Mouse</a></li>
<li class="class-depth-1"><a href="Phaser.Keyboard.html">Keyboard</a></li>
<li class="class-depth-1"><a href="Phaser.Key.html">Key</a></li>
2016-08-26 00:18:47 +00:00
<li class="class-depth-1"><a href="Phaser.KeyCode.html">Key Codes</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="Phaser.Gamepad.html">Gamepad</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Community<b class="caret"></b></a>
<ul class="dropdown-menu ">
2015-03-26 02:55:18 +00:00
<li class="class-depth-1"><a href="http://phaser.io">Phaser Web Site</a></li>
2014-11-25 00:23:44 +00:00
<li class="class-depth-1"><a href="https://github.com/photonstorm/phaser">Phaser Github</a></li>
2015-03-26 02:55:18 +00:00
<li class="class-depth-1"><a href="http://phaser.io/examples">Phaser Examples</a></li>
2014-11-25 00:23:44 +00:00
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<h1 class="page-title">Source: src/geom/Polygon.js</h1>
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<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey &lt;rich@photonstorm.com>
* @author Adrien Brault &lt;adrien.brault@gmail.com>
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* @copyright 2016 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Creates a new Polygon.
*
* The points can be set from a variety of formats:
*
* - An array of Point objects: `[new Phaser.Point(x1, y1), ...]`
* - An array of objects with public x/y properties: `[obj1, obj2, ...]`
* - An array of paired numbers that represent point coordinates: `[x1,y1, x2,y2, ...]`
* - As separate Point arguments: `setTo(new Phaser.Point(x1, y1), ...)`
* - As separate objects with public x/y properties arguments: `setTo(obj1, obj2, ...)`
* - As separate arguments representing point coordinates: `setTo(x1,y1, x2,y2, ...)`
*
* @class Phaser.Polygon
* @constructor
* @param {Phaser.Point[]|number[]|...Phaser.Point|...number} points - The points to set.
*/
Phaser.Polygon = function () {
/**
* @property {number} area - The area of this Polygon.
*/
this.area = 0;
/**
* @property {array} _points - An array of Points that make up this Polygon.
* @private
*/
this._points = [];
if (arguments.length > 0)
{
this.setTo.apply(this, arguments);
}
/**
* @property {boolean} closed - Is the Polygon closed or not?
*/
this.closed = true;
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/**
* @property {boolean} flattened - Has this Polygon been flattened by a call to `Polygon.flatten` ?
*/
this.flattened = false;
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/**
* @property {number} type - The base object type.
*/
this.type = Phaser.POLYGON;
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};
Phaser.Polygon.prototype = {
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/**
* Export the points as an array of flat numbers, following the sequence [ x,y, x,y, x,y ]
*
* @method Phaser.Polygon#toNumberArray
* @param {array} [output] - The array to append the points to. If not specified a new array will be created.
* @return {array} The flattened array.
*/
toNumberArray: function (output) {
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if (output === undefined) { output = []; }
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for (var i = 0; i &lt; this._points.length; i++)
{
if (typeof this._points[i] === 'number')
{
output.push(this._points[i]);
output.push(this._points[i + 1]);
i++;
}
else
{
output.push(this._points[i].x);
output.push(this._points[i].y);
}
}
return output;
},
/**
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* Flattens this Polygon so the points are a sequence of numbers.
* Any Point objects found are removed and replaced with two numbers.
* Also sets the Polygon.flattened property to `true`.
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*
* @method Phaser.Polygon#flatten
* @return {Phaser.Polygon} This Polygon object
*/
flatten: function () {
this._points = this.toNumberArray();
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this.flattened = true;
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return this;
},
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/**
* Creates a copy of the given Polygon.
* This is a deep clone, the resulting copy contains new Phaser.Point objects
*
* @method Phaser.Polygon#clone
* @param {Phaser.Polygon} [output=(new Polygon)] - The polygon to update. If not specified a new polygon will be created.
* @return {Phaser.Polygon} The cloned (`output`) polygon object.
*/
clone: function (output) {
var points = this._points.slice();
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if (output === undefined || output === null)
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{
output = new Phaser.Polygon(points);
}
else
{
output.setTo(points);
}
return output;
},
/**
* Checks whether the x and y coordinates are contained within this polygon.
*
* @method Phaser.Polygon#contains
* @param {number} x - The X value of the coordinate to test.
* @param {number} y - The Y value of the coordinate to test.
* @return {boolean} True if the coordinates are within this polygon, otherwise false.
*/
contains: function (x, y) {
// Adapted from http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html by Jonas Raoni Soares Silva
var inside = false;
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if (this.flattened)
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{
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for (var i = -2, j = this._points.length - 2; (i += 2) &lt; this._points.length; j = i)
{
var ix = this._points[i];
var iy = this._points[i + 1];
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var jx = this._points[j];
var jy = this._points[j + 1];
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if (((iy &lt;= y &amp;&amp; y &lt; jy) || (jy &lt;= y &amp;&amp; y &lt; iy)) &amp;&amp; (x &lt; (jx - ix) * (y - iy) / (jy - iy) + ix))
{
inside = !inside;
}
}
}
else
{
for (var i = -1, j = this._points.length - 1; ++i &lt; this._points.length; j = i)
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{
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var ix = this._points[i].x;
var iy = this._points[i].y;
var jx = this._points[j].x;
var jy = this._points[j].y;
if (((iy &lt;= y &amp;&amp; y &lt; jy) || (jy &lt;= y &amp;&amp; y &lt; iy)) &amp;&amp; (x &lt; (jx - ix) * (y - iy) / (jy - iy) + ix))
{
inside = !inside;
}
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}
}
return inside;
},
/**
* Sets this Polygon to the given points.
*
* The points can be set from a variety of formats:
*
* - An array of Point objects: `[new Phaser.Point(x1, y1), ...]`
* - An array of objects with public x/y properties: `[obj1, obj2, ...]`
* - An array of paired numbers that represent point coordinates: `[x1,y1, x2,y2, ...]`
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* - An array of arrays with two elements representing x/y coordinates: `[[x1, y1], [x2, y2], ...]`
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* - As separate Point arguments: `setTo(new Phaser.Point(x1, y1), ...)`
* - As separate objects with public x/y properties arguments: `setTo(obj1, obj2, ...)`
* - As separate arguments representing point coordinates: `setTo(x1,y1, x2,y2, ...)`
*
* `setTo` may also be called without any arguments to remove all points.
*
* @method Phaser.Polygon#setTo
* @param {Phaser.Point[]|number[]|...Phaser.Point|...number} points - The points to set.
* @return {Phaser.Polygon} This Polygon object
*/
setTo: function (points) {
this.area = 0;
this._points = [];
if (arguments.length > 0)
{
// If points isn't an array, use arguments as the array
if (!Array.isArray(points))
{
points = Array.prototype.slice.call(arguments);
}
var y0 = Number.MAX_VALUE;
// Allows for mixed-type arguments
for (var i = 0, len = points.length; i &lt; len; i++)
{
if (typeof points[i] === 'number')
{
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var p = new PIXI.Point(points[i], points[i + 1]);
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i++;
}
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else if (Array.isArray(points[i]))
{
var p = new PIXI.Point(points[i][0], points[i][1]);
}
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else
{
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var p = new PIXI.Point(points[i].x, points[i].y);
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}
this._points.push(p);
// Lowest boundary
if (p.y &lt; y0)
{
y0 = p.y;
}
}
this.calculateArea(y0);
}
return this;
},
/**
* Calcuates the area of the Polygon. This is available in the property Polygon.area
*
* @method Phaser.Polygon#calculateArea
* @private
* @param {number} y0 - The lowest boundary
* @return {number} The area of the Polygon.
*/
calculateArea: function (y0) {
var p1;
var p2;
var avgHeight;
var width;
for (var i = 0, len = this._points.length; i &lt; len; i++)
{
p1 = this._points[i];
if (i === len - 1)
{
p2 = this._points[0];
}
else
{
p2 = this._points[i + 1];
}
avgHeight = ((p1.y - y0) + (p2.y - y0)) / 2;
width = p1.x - p2.x;
this.area += avgHeight * width;
}
return this.area;
}
};
Phaser.Polygon.prototype.constructor = Phaser.Polygon;
/**
* Sets and modifies the points of this polygon.
*
* See {@link Phaser.Polygon#setTo setTo} for the different kinds of arrays formats that can be assigned.
*
* @name Phaser.Polygon#points
* @property {Phaser.Point[]} points - The array of vertex points.
* @deprecated Use `setTo`.
*/
Object.defineProperty(Phaser.Polygon.prototype, 'points', {
get: function() {
return this._points;
},
set: function(points) {
if (points != null)
{
this.setTo(points);
}
else
{
// Clear the points
this.setTo();
}
}
});
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// Because PIXI uses its own type, we'll replace it with ours to avoid duplicating code or confusion.
PIXI.Polygon = Phaser.Polygon;
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</pre>
</article>
</section>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a>
on Fri Aug 26 2016 01:16:09 GMT+0100 (BST) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
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