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An instance of resources class is second (and last) global variable in this project. The instance is created directly in main ms together with an instance of Game class. It ensure that all resources will be loaded at the begining and only once during the game. It saves memory and also improves the performance because it is not needed to load images or sounds during the game.
The Resources class is not extended from any framework class, what means that it's contructor can be create as a function called this. In the constructor all resources are loaded.
Example: load all resources
function this()
{
var self = this;
this.img = {
ball : Bitmap.fromFile(GFX_PATH + "ball-ingame.png"),
brisks : Bitmap.fromFile(GFX_PATH + "bricks.png"),
levels : Bitmap.fromFile(GFX_PATH + "levels.png"),
gameOver : Bitmap.fromFile(GFX_PATH + "gameOver.png"),
disks : Bitmap.fromFile(GFX_PATH + "disks.png"),
playButton : Bitmap.fromFile(GFX_PATH + "playbttn.png"),
continueButton : Bitmap.fromFile(GFX_PATH + "continuebttn.png"),
quitButton : Bitmap.fromFile(GFX_PATH + "quitbttn.png"),
menuButton : Bitmap.fromFile(GFX_PATH + "menu.png"),
gameOver : Bitmap.fromFile(GFX_PATH + "gameOver.png"),
menuBg : self.loadBg(GFX_PATH + "bgr-intro-"),
gameBg : self.loadBg(GFX_PATH + "bgr-ingame-"),
logo : self.loadLogo(GFX_PATH + "img_intro_"),
}; this.resizeButtons(); this.sounds = {
ball : SFX_PATH + "ball.wav",
strikeball : SFX_PATH + "strikeball.wav",
eletric : SFX_PATH + "electricshock.wav",
}; this.values = {
levelChangingInterval : 1500,
electricShockMin : 1500,
electricShockGap : 2000,
formAnimationTime : 800,
}
}
The game runs on many various devices with different resolutions. Some of images (like background or logo) can not be, because of different aspect ration on various devices, resized. However, the resources class selects right image by loadBg method.
Example: select correct image for device resolution
function loadBg(res)
{
if (System.width < 321)
return Bitmap.fromFile(res + "320x480.jpg");
else if (System.width < 481)
return Bitmap.fromFile(res + "480x800.jpg");
else if (System.width < 601)
return Bitmap.fromFile(res + "600x800.jpg");
else if (System.width < 641)
return Bitmap.fromFile(res + "640x960.jpg");
else if (System.width < 769)
return Bitmap.fromFile(res + "768x1024.jpg");
else
return Bitmap.fromFile(res + "800x1280.jpg");
}
However, not some of images can be easyily resieze to adapt the device resolution. In this game we resize buttons by resizeButtons() class.
Example: resize buttons
// adjust size of menu bottons to the svreen resolution
function resizeButtons()
{
var scale = 1.0;
if (this.img.continueButton.width > 4.0 * System.width / 5) {
scale = (4.0*System.width / 5) / this.img.continueButton.width;
this.img.playButton = this.img.playButton.resize((this.img.playButton.width * scale).toInteger(), (this.img.playButton.height * scale).toInteger())
this.img.quitButton = this.img.quitButton.resize((this.img.quitButton.width * scale).toInteger(), (this.img.quitButton.height * scale).toInteger())
this.img.continueButton = this.img.continueButton.resize((this.img.continueButton.width * scale).toInteger(), (this.img.continueButton.height * scale).toInteger())
}
}
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