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<title>src/pixi/primitives/Graphics.js - Pixi.JS</title>
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<h1 class="file-heading">File: src/pixi/primitives/Graphics.js</h1>
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<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* The Graphics class contains a set of methods that you can use to create primitive shapes and lines.
* It is important to know that with the webGL renderer only simple polys can be filled at this stage
* Complex polys will not be filled. Heres an example of a complex poly: http://www.goodboydigital.com/wp-content/uploads/2013/06/complexPolygon.png
* @class Graphics
* @extends DisplayObjectContainer
* @constructor
*/
PIXI.Graphics = function()
{
PIXI.DisplayObjectContainer.call( this );
this.renderable = true;
this.fillAlpha = 1;
this.lineWidth = 0;
this.lineColor = "black";
this.graphicsData = [];
this.currentPath = {points:[]};
}
// constructor
PIXI.Graphics.constructor = PIXI.Graphics;
PIXI.Graphics.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
/**
* Specifies a line style used for subsequent calls to Graphics methods such as the lineTo() method or the drawCircle() method.
* @method lineStyle
* @param lineWidth {Number}
* @param color {Number}
* @param alpha {Number}
*/
PIXI.Graphics.prototype.lineStyle = function(lineWidth, color, alpha)
{
if(this.currentPath.points.length == 0)this.graphicsData.pop();
this.lineWidth = lineWidth || 0;
this.lineColor = color || 0;
this.lineAlpha = (alpha == undefined) ? 1 : alpha;
this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha,
fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[], type:PIXI.Graphics.POLY};
this.graphicsData.push(this.currentPath);
}
/**
* Moves the current drawing position to (x, y).
* @method moveTo
* @param x {Number}
* @param y {Number}
*/
PIXI.Graphics.prototype.moveTo = function(x, y)
{
if(this.currentPath.points.length == 0)this.graphicsData.pop();
this.currentPath = this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha,
fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling, points:[], type:PIXI.Graphics.POLY};
this.currentPath.points.push(x, y);
this.graphicsData.push(this.currentPath);
}
/**
* Draws a line using the current line style from the current drawing position to (x, y); the current drawing position is then set to (x, y).
* @method lineTo
* @param x {Number}
* @param y {Number}
*/
PIXI.Graphics.prototype.lineTo = function(x, y)
{
this.currentPath.points.push(x, y);
this.dirty = true;
}
/**
* Specifies a simple one-color fill that subsequent calls to other Graphics methods (such as lineTo() or drawCircle()) use when drawing.
* @method beginFill
* @param color {uint} the color of the fill
* @param alpha {Number} the alpha
*/
PIXI.Graphics.prototype.beginFill = function(color, alpha)
{
this.filling = true;
this.fillColor = color || 0;
this.fillAlpha = alpha || 1;
}
/**
* Applies a fill to the lines and shapes that were added since the last call to the beginFill() method.
* @method endFill
*/
PIXI.Graphics.prototype.endFill = function()
{
this.filling = false;
this.fillColor = null;
this.fillAlpha = 1;
}
/**
* @method drawRect
* @param x {Number}
* @param y {Number}
* @param width {Number}
* @param height {Number}
*/
PIXI.Graphics.prototype.drawRect = function( x, y, width, height )
{
if(this.currentPath.points.length == 0)this.graphicsData.pop();
this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha,
fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling,
points:[x, y, width, height], type:PIXI.Graphics.RECT};
this.graphicsData.push(this.currentPath);
this.dirty = true;
}
/**
* Draws a circle.
* @method drawCircle
* @param x {Number}
* @param y {Number}
* @param radius {Number}
*/
PIXI.Graphics.prototype.drawCircle = function( x, y, radius)
{
if(this.currentPath.points.length == 0)this.graphicsData.pop();
this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha,
fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling,
points:[x, y, radius, radius], type:PIXI.Graphics.CIRC};
this.graphicsData.push(this.currentPath);
this.dirty = true;
}
/**
* Draws an elipse.
* @method drawElipse
* @param x {Number}
* @param y {Number}
* @param width {Number}
* @param height {Number}
*/
PIXI.Graphics.prototype.drawElipse = function( x, y, width, height)
{
if(this.currentPath.points.length == 0)this.graphicsData.pop();
this.currentPath = {lineWidth:this.lineWidth, lineColor:this.lineColor, lineAlpha:this.lineAlpha,
fillColor:this.fillColor, fillAlpha:this.fillAlpha, fill:this.filling,
points:[x, y, width, height], type:PIXI.Graphics.ELIP};
this.graphicsData.push(this.currentPath);
this.dirty = true;
}
/**
* Clears the graphics that were drawn to this Graphics object, and resets fill and line style settings.
* @method clear
*/
PIXI.Graphics.prototype.clear = function()
{
this.lineWidth = 0;
this.filling = false;
this.dirty = true;
this.clearDirty = true;
this.graphicsData = [];
}
// SOME TYPES:
PIXI.Graphics.POLY = 0;
PIXI.Graphics.RECT = 1;
PIXI.Graphics.CIRC = 2;
PIXI.Graphics.ELIP = 3;
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