1 /**
  2     The base class for all elements that appear in the game.
  3     @author <a href="mailto:matthewcasperson@gmail.com">Matthew Casperson</a>
  4     @class
  5 */
  6 function VisualGameObject()
  7 {
  8     /**
  9         The image that will be displayed by this object
 10         @type Image
 11     */
 12     this.image = null;
 13     
 14     /**
 15         Draws this element to the back buffer
 16         @param dt Time in seconds since the last frame
 17 		@param context The context to draw to
 18 		@param xScroll The global scrolling value of the x axis  
 19 		@param yScroll The global scrolling value of the y axis  
 20     */
 21     this.draw = function(/**Number*/ dt, /**CanvasRenderingContext2D*/ context, /**Number*/ xScroll, /**Number*/ yScroll)
 22     {
 23         context.drawImage(this.image, this.x - xScroll, this.y - yScroll);
 24     }
 25     
 26     /**
 27         Initialises this object
 28         @param image The image to be displayed
 29 		@param x The position on the X axis
 30         @param y The position on the Y axis
 31 		@param z The depth
 32     */
 33     this.startupVisualGameObject = function(/**Image*/ image, /**Number*/ x, /**Number*/ y, /**Number*/ z)
 34     {
 35         this.startupGameObject(x, y, z);
 36         this.image = image;
 37         return this;
 38     }
 39     
 40     /**
 41         Clean this object up
 42     */
 43     this.shutdownVisualGameObject = function()
 44     {
 45         this.shutdownGameObject();
 46     }
 47 }
 48 VisualGameObject.prototype = new GameObject;