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<a href="Phaser.Utils.html">Utils</a>
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<a href="Phaser.Utils.Debug.html">Debug</a>
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<a href="PIXI.BaseTexture.html">BaseTexture</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.BitmapFontLoader.html">BitmapFontLoader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.BitmapText.html">BitmapText</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.BlurFilter.html">BlurFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.BlurXFilter.html">BlurXFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.BlurYFilter.html">BlurYFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.CanvasBuffer.html">CanvasBuffer</a>
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<li class="class-depth-1">
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<a href="PIXI.CanvasGraphics.html">CanvasGraphics</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.CanvasMaskManager.html">CanvasMaskManager</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.CanvasRenderer.html">CanvasRenderer</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.CanvasTinter.html">CanvasTinter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Circle.html">Circle</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.ColorMatrixFilter.html">ColorMatrixFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.ColorStepFilter.html">ColorStepFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.ComplexPrimitiveShader.html">ComplexPrimitiveShader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.ConvolutionFilter.html">ConvolutionFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.CrossHatchFilter.html">CrossHatchFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.DisplacementFilter.html">DisplacementFilter</a>
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</li>
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<a href="PIXI.DisplayObject.html">DisplayObject</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.DisplayObjectContainer.html">DisplayObjectContainer</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.DotScreenFilter.html">DotScreenFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Ellipse.html">Ellipse</a>
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</li>
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<a href="PIXI.Event.html">Event</a>
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<a href="PIXI.EventTarget.html">EventTarget</a>
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<a href="PIXI.FilterBlock.html">FilterBlock</a>
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<a href="PIXI.FilterTexture.html">FilterTexture</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Graphics.html">Graphics</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.GraphicsData.html">GraphicsData</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.GrayFilter.html">GrayFilter</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.ImageLoader.html">ImageLoader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.InteractionData.html">InteractionData</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.InteractionManager.html">InteractionManager</a>
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</li>
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<a href="PIXI.InvertFilter.html">InvertFilter</a>
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</li>
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<a href="PIXI.JsonLoader.html">JsonLoader</a>
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<li class="class-depth-1">
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<a href="PIXI.Matrix.html">Matrix</a>
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<a href="PIXI.MovieClip.html">MovieClip</a>
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<a href="PIXI.NoiseFilter.html">NoiseFilter</a>
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<a href="PIXI.NormalMapFilter.html">NormalMapFilter</a>
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<a href="PIXI.PixelateFilter.html">PixelateFilter</a>
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<a href="PIXI.PIXI.html">PIXI</a>
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<li class="class-depth-1">
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<a href="PIXI.PixiFastShader.html">PixiFastShader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.PixiShader.html">PixiShader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Point.html">Point</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Polygon.html">Polygon</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.PolyK.html">PolyK</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.PrimitiveShader.html">PrimitiveShader</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Rectangle.html">Rectangle</a>
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</li>
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<li class="class-depth-1">
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<a href="PIXI.RenderTexture.html">RenderTexture</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.RGBSplitFilter.html">RGBSplitFilter</a>
|
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</li>
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<li class="class-depth-1">
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<a href="PIXI.Rope.html">Rope</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.RoundedRectangle.html">RoundedRectangle</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.SepiaFilter.html">SepiaFilter</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.SmartBlurFilter.html">SmartBlurFilter</a>
|
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</li>
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|
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<li class="class-depth-1">
|
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<a href="PIXI.Spine.html">Spine</a>
|
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</li>
|
|
|
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<li class="class-depth-1">
|
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<a href="PIXI.SpineLoader.html">SpineLoader</a>
|
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</li>
|
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|
|
<li class="class-depth-1">
|
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<a href="PIXI.SpineTextureLoader.html">SpineTextureLoader</a>
|
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</li>
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|
|
<li class="class-depth-1">
|
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<a href="PIXI.Sprite.html">Sprite</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.SpriteBatch.html">SpriteBatch</a>
|
|
</li>
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<li class="class-depth-1">
|
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<a href="PIXI.SpriteSheetLoader.html">SpriteSheetLoader</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.Stage.html">Stage</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.Strip.html">Strip</a>
|
|
</li>
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<li class="class-depth-1">
|
|
<a href="PIXI.StripShader.html">StripShader</a>
|
|
</li>
|
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|
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<li class="class-depth-1">
|
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<a href="PIXI.Text.html">Text</a>
|
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</li>
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<li class="class-depth-1">
|
|
<a href="PIXI.Texture.html">Texture</a>
|
|
</li>
|
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|
|
<li class="class-depth-1">
|
|
<a href="PIXI.TilingSprite.html">TilingSprite</a>
|
|
</li>
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|
<li class="class-depth-1">
|
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<a href="PIXI.TiltShiftFilter.html">TiltShiftFilter</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.TiltShiftXFilter.html">TiltShiftXFilter</a>
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.TiltShiftYFilter.html">TiltShiftYFilter</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.TwistFilter.html">TwistFilter</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.VideoTexture.html">VideoTexture</a>
|
|
</li>
|
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<li class="class-depth-1">
|
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<a href="PIXI.WebGLBlendModeManager.html">WebGLBlendModeManager</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.WebGLFastSpriteBatch.html">WebGLFastSpriteBatch</a>
|
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</li>
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<li class="class-depth-1">
|
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<a href="PIXI.WebGLFilterManager.html">WebGLFilterManager</a>
|
|
</li>
|
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|
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<li class="class-depth-1">
|
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<a href="PIXI.WebGLRenderer.html">WebGLRenderer</a>
|
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</li>
|
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</ul>
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</li>
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<li class="dropdown">
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Core<b class="caret"></b></a>
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<ul class="dropdown-menu ">
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<li class="class-depth-1"><a href="Phaser.Game.html">Game</a></li>
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<li class="class-depth-1"><a href="Phaser.Group.html">Group</a></li>
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<li class="class-depth-1"><a href="Phaser.World.html">World</a></li>
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<li class="class-depth-1"><a href="Phaser.Loader.html">Loader</a></li>
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<li class="class-depth-1"><a href="Phaser.Time.html">Time</a></li>
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<li class="class-depth-1"><a href="Phaser.Camera.html">Camera</a></li>
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<li class="class-depth-1"><a href="Phaser.StateManager.html">State Manager</a></li>
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<li class="class-depth-1"><a href="Phaser.TweenManager.html">Tween Manager</a></li>
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<li class="class-depth-1"><a href="Phaser.SoundManager.html">Sound Manager</a></li>
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<li class="class-depth-1"><a href="Phaser.InputManager.html">Input Manager</a></li>
|
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<li class="class-depth-1"><a href="Phaser.ScaleManager.html">Scale Manager</a></li>
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</ul>
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</li>
|
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<li class="dropdown">
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Game Objects<b class="caret"></b></a>
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<ul class="dropdown-menu ">
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<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.GameObjectCreator.html">Creator (game.make)</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>
|
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<li class="class-depth-1"><a href="Phaser.Sound.html">Sound</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Emitter.html">Emitter</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Particle.html">Particle</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Text.html">Text</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Tween.html">Tween</a></li>
|
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<li class="class-depth-1"><a href="Phaser.BitmapText.html">BitmapText</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Tilemap.html">Tilemap</a></li>
|
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<li class="class-depth-1"><a href="Phaser.BitmapData.html">BitmapData</a></li>
|
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<li class="class-depth-1"><a href="Phaser.RetroFont.html">RetroFont</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Button.html">Button</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Animation.html">Animation</a></li>
|
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<li class="class-depth-1"><a href="Phaser.Graphics.html">Graphics</a></li>
|
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<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>
|
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</ul>
|
|
</li>
|
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|
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<li class="dropdown">
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Geometry<b class="caret"></b></a>
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<ul class="dropdown-menu ">
|
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<li class="class-depth-1"><a href="Phaser.Circle.html">Circle</a></li>
|
|
<li class="class-depth-1"><a href="Phaser.Rectangle.html">Rectangle</a></li>
|
|
<li class="class-depth-1"><a href="Phaser.Point.html">Point</a></li>
|
|
<li class="class-depth-1"><a href="Phaser.Line.html">Line</a></li>
|
|
<li class="class-depth-1"><a href="Phaser.Ellipse.html">Ellipse</a></li>
|
|
<li class="class-depth-1"><a href="Phaser.Polygon.html">Polygon</a></li>
|
|
</ul>
|
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</li>
|
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<li class="dropdown">
|
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Physics<b class="caret"></b></a>
|
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<ul class="dropdown-menu ">
|
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<li class="class-depth-1"><a href="Phaser.Physics.Arcade.html">Arcade Physics</a></li>
|
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<li class="class-depth-2"><a href="Phaser.Physics.Arcade.Body.html">Body</a></li>
|
|
<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>
|
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<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>
|
|
</ul>
|
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</li>
|
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<li class="dropdown">
|
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Input<b class="caret"></b></a>
|
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<ul class="dropdown-menu ">
|
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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>
|
|
<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>
|
|
<li class="class-depth-1"><a href="Phaser.Gamepad.html">Gamepad</a></li>
|
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</ul>
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</li>
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<li class="dropdown">
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<a href="#" class="dropdown-toggle" data-toggle="dropdown">Community<b class="caret"></b></a>
|
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<ul class="dropdown-menu ">
|
|
<li class="class-depth-1"><a href="https://github.com/photonstorm/phaser">Phaser Github</a></li>
|
|
<li class="class-depth-1"><a href="http://examples.phaser.io">Phaser Examples</a></li>
|
|
<li class="class-depth-1"><a href="https://github.com/photonstorm/phaser-plugins">Phaser Plugins</a></li>
|
|
<li class="class-depth-1"><a href="http://www.html5gamedevs.com/forum/14-phaser/">Forum</a></li>
|
|
<li class="class-depth-1"><a href="http://stackoverflow.com/questions/tagged/phaser-framework">Stack Overflow</a></li>
|
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<li class="class-depth-1"><a href="https://confirmsubscription.com/h/r/369DE48E3E86AF1E">Newsletter</a></li>
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<li class="class-depth-1"><a href="https://twitter.com/photonstorm">Twitter</a></li>
|
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<li class="class-depth-1"><a href="http://www.html5gamedevs.com/topic/4470-official-phaserio-irc-channel-phaserio-on-freenode/">IRC</a></li>
|
|
<li class="class-depth-1"><a href="https://leanpub.com/u/photonstorm">Phaser Books</a></li>
|
|
<li class="class-depth-1"><a href="https://www.gittip.com/photonstorm/">GitTip</a></li>
|
|
</ul>
|
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</li>
|
|
|
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</ul>
|
|
</div>
|
|
</div>
|
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|
|
<div class="row-fluid">
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<div class="span12">
|
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<div id="main">
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|
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<h1 class="page-title">Source: D:/wamp/www/phaser/src/geom/Polygon.js</h1>
|
|
|
|
<section>
|
|
<article>
|
|
<pre class="sunlight-highlight-javascript linenums">/**
|
|
* @author Richard Davey <rich@photonstorm.com>
|
|
* @author Adrien Brault <adrien.brault@gmail.com>
|
|
* @copyright 2014 Photon Storm Ltd.
|
|
* @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} type - The base object type.
|
|
*/
|
|
this.type = Phaser.POLYGON;
|
|
|
|
/**
|
|
* @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;
|
|
|
|
};
|
|
|
|
Phaser.Polygon.prototype = {
|
|
|
|
/**
|
|
* 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();
|
|
|
|
if (typeof output === "undefined" || output === null)
|
|
{
|
|
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 length = this._points.length;
|
|
var inside = false;
|
|
|
|
for (var i = -1, j = length - 1; ++i < length; j = i)
|
|
{
|
|
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 <= y && y < jy) || (jy <= y && y < iy)) && (x < (jx - ix) * (y - iy) / (jy - iy) + ix))
|
|
{
|
|
inside = !inside;
|
|
}
|
|
}
|
|
|
|
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, ...]`
|
|
* - 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 < len; i++)
|
|
{
|
|
if (typeof points[i] === 'number')
|
|
{
|
|
var p = new Phaser.Point(points[i], points[i + 1]);
|
|
i++;
|
|
}
|
|
else
|
|
{
|
|
var p = new Phaser.Point(points[i].x, points[i].y);
|
|
}
|
|
|
|
this._points.push(p);
|
|
|
|
// Lowest boundary
|
|
if (p.y < 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 < 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();
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
</pre>
|
|
</article>
|
|
</section>
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<div class="clearfix"></div>
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<footer>
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|
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|
|
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<span class="copyright">
|
|
Phaser Copyright © 2012-2014 Photon Storm Ltd.
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</span>
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<br />
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<span class="jsdoc-message">
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
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on Thu Dec 04 2014 11:32:24 GMT-0000 (GMT) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
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