1     /**
2         A database for the external resources used by the game
3         @author <a href="mailto:matthewcasperson@gmail.com">Matthew Casperson</a>
4         @class
5     */
6     function ResourceManager()
7     {
8        /** An array of the names of the images supplied to the startupResourceManager
9           function. Since the images are referenced by creating new properties
10          of the ResourceManager class this collection allows a developer to 
11          know which of the ResourceManager properties are images, and (by 
12          elimination) those that are not
13          @type Array
14       */
15        this.imageProperties = null;
16
17       /**
18            Initialises this object
19          @param images  An array of objects with the name and src properties
20            @return      A reference to the initialised object
21        */
22        this.startupResourceManager = function(/**Array*/ images)
23        {
24            // set the global variable
25          g_ResourceManager = this;
26
27            // initialize internal state.
28            this.imageProperties = new Array();
29
30            // for each image, call preload()
31            for ( var i = 0; i < images.length; i++ )
32          {
33             // create new Image object and add to array
34             var thisImage = new Image;
35             this[images[i].name] = thisImage;
36             this.imageProperties.push(images[i].name);
37
38             // assign the .src property of the Image object
39             thisImage.src = images[i].src;
40          }
41
42            return this;
43        }
44    }