phaser/src/pixi/core/Rectangle.js

/**
 * @author Mat Groves http://matgroves.com/
 */

/**
 * the Rectangle object is an area defined by its position, as indicated by its top-left corner point (x, y) and by its width and its height.
 *
 * @class Rectangle
 * @constructor 
 * @param x {Number} The X coord of the upper-left corner of the rectangle
 * @param y {Number} The Y coord of the upper-left corner of the rectangle
 * @param width {Number} The overall wisth of this rectangle
 * @param height {Number} The overall height of this rectangle
 */
PIXI.Rectangle = function(x, y, width, height)
{
	/**
	 * @property x
	 * @type Number
	 * @default 0
	 */
	this.x = x || 0;
	
	/**
	 * @property y
	 * @type Number
	 * @default 0
	 */
	this.y = y || 0;
	
	/**
	 * @property width
	 * @type Number
	 * @default 0
	 */
	this.width = width || 0;
	
	/**
	 * @property height
	 * @type Number
	 * @default 0
	 */
	this.height = height || 0;
}

/**
 * Creates a clone of this Rectangle
 *
 * @method clone
 * @return {Rectangle} a copy of the rectangle
 */
PIXI.Rectangle.prototype.clone = function()
{
	return new PIXI.Rectangle(this.x, this.y, this.width, this.height);
}

/**
 * Checks if the x, and y coords passed to this function are contained within this Rectangle
 *
 * @method contains
 * @param x {Number} The X coord of the point to test
 * @param y {Number} The Y coord of the point to test
 * @return {Boolean} if the x/y coords are within this Rectangle
 */
PIXI.Rectangle.prototype.contains = function(x, y)
{
    if(this.width <= 0 || this.height <= 0)
        return false;

	var x1 = this.x;
	if(x >= x1 && x <= x1 + this.width)
	{
		var y1 = this.y;
		
		if(y >= y1 && y <= y1 + this.height)
		{
			return true;
		}
	}

	return false;
}

// constructor
PIXI.Rectangle.prototype.constructor = PIXI.Rectangle;