MonkeyGG2
71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
/*
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* class: VolumeMenu (extends PIXI.Container)
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*
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* Construct params
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* gamefield: {width, height} in real pixels
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*
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*/
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define([], function()
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{
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function VolumeMenu(windowfield) // constructor.
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{
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PIXI.Container.call(this);
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this.fadetime = 1000;
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this.visible = false;
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this.alpha = 1;
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this.t0 = 0;
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this.mastertext = new PIXI.BitmapText('MASTER', {font: {name: 'Venera', size: 20}});
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this.mastertext.anchor.set(0.5);
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this.volumetext = new PIXI.BitmapText('', {font: {name: 'Venera', size: 40}});
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this.volumetext.anchor.set(0.5);
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this.addChild(this.mastertext);
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this.addChild(this.volumetext);
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this.resize = function(windowfield) {
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this.mastertext.x = windowfield.width - 100;
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this.mastertext.y = windowfield.height/2 - 30;
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this.volumetext.x = windowfield.width - 100;
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this.volumetext.y = windowfield.height/2 + 10;
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}
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this.resize(windowfield);
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this.setVolume = function(volume) {
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this.changed = true;
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this.volumetext.text = Math.round(volume).toString();
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}
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this.update = function(timestamp) {
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if (this.changed) {
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this.visible = true;
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this.t0 = timestamp;
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this.changed = false;
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}
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if (!this.visible)
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return;
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let dt = timestamp - this.t0;
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if (dt > this.fadetime) {
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this.visible = false;
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}
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else {
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this.alpha = 1 - Math.pow(dt/this.fadetime, 5);
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}
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}
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}
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if ( PIXI.Container ) { VolumeMenu.__proto__ = PIXI.Container; }
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VolumeMenu.prototype = Object.create( PIXI.Container && PIXI.Container.prototype );
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VolumeMenu.prototype.constructor = VolumeMenu;
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VolumeMenu.prototype.destroy = function destroy (options)
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{
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PIXI.Container.prototype.destroy.call(this, options);
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};
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return VolumeMenu;
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});
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