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https://github.com/wassname/phaser.git
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photonstorm
118 lines
3.0 KiB
JavaScript
118 lines
3.0 KiB
JavaScript
PIXI.RetroPlasmaFilter = function(width, height)
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{
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PIXI.AbstractFilter.call( this );
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this.passes = [this];
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var d = new Date();
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var dates = [
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d.getFullYear(), // the year (four digits)
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d.getMonth(), // the month (from 0-11)
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d.getDate(), // the day of the month (from 1-31)
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d.getHours()*60.0*60 + d.getMinutes()*60 + d.getSeconds()
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];
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this.uniforms = {
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iResolution: { type: 'f3', value: { x: width, y: height, z: 0 }},
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iGlobalTime: { type: 'f', value: 1 },
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iDate: { type: 'f4', value: dates }
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};
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// Oldskool plasm shader. (c) Victor Korsun, bitekas@gmail.com; 1996-2013.
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this.fragmentSrc = [
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"precision mediump float;",
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"uniform vec3 iResolution;",
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"uniform float iGlobalTime;",
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"uniform float iChannelTime[4];",
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"uniform vec4 iMouse;",
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"uniform vec4 iDate;",
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"uniform vec3 iChannelResolution[4];",
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"// add any extra uniforms here",
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"// Oldskool plasm shader. (c) Victor Korsun, bitekas@gmail.com; 1996-2013.",
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"//",
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"// Attribution-ShareAlike CC License.",
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"//----------------",
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"const int ps = 10; // use values > 1..10 for oldskool",
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"//----------------",
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"void main(void)",
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"{",
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"float x = gl_FragCoord.x / iResolution.x * 640.;",
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"float y = gl_FragCoord.y / iResolution.y * 480.;",
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"if (ps > 0)",
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"{",
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"x = float(int(x / float(ps)) * ps);",
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"y = float(int(y / float(ps)) * ps);",
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"}",
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"float mov0 = x+y+sin(iGlobalTime)*10.+sin(x/90.)*70.+iGlobalTime*2.;",
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"float mov1 = (mov0 / 5. + sin(mov0 / 30.))/ 10. + iGlobalTime * 3.;",
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"float mov2 = mov1 + sin(mov1)*5. + iGlobalTime*1.0;",
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"float cl1 = sin(sin(mov1/4. + iGlobalTime)+mov1);",
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"float c1 = cl1 +mov2/2.-mov1-mov2+iGlobalTime;",
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"float c2 = sin(c1+sin(mov0/100.+iGlobalTime)+sin(y/57.+iGlobalTime/50.)+sin((x+y)/200.)*2.);",
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"float c3 = abs(sin(c2+cos((mov1+mov2+c2) / 10.)+cos((mov2) / 10.)+sin(x/80.)));",
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"float dc = float(16-ps);",
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"if (ps > 0)",
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"{",
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"cl1 = float(int(cl1*dc))/dc;",
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"c2 = float(int(c2*dc))/dc;",
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"c3 = float(int(c3*dc))/dc;",
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"}",
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"gl_FragColor = vec4( cl1,c2,c3,1.0);",
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"}"];
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}
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PIXI.RetroPlasmaFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.RetroPlasmaFilter.prototype.constructor = PIXI.RetroPlasmaFilter;
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Object.defineProperty(PIXI.RetroPlasmaFilter.prototype, 'iGlobalTime', {
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get: function() {
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return this.uniforms.iGlobalTime.value;
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},
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set: function(value) {
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this.uniforms.iGlobalTime.value = value;
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}
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});
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var game = new Phaser.Game(800, 600, Phaser.AUTO, 'phaser-example', { preload: preload, create: create, update: update, render: render });
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function preload() {
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game.load.image('texture', 'wip/64x64.png');
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}
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var filter;
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var sprite;
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function create() {
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sprite = game.add.sprite(0, 0, 'texture');
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sprite.width = 800;
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sprite.height = 600;
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filter = new PIXI.RetroPlasmaFilter(sprite.width, sprite.height);
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sprite.filters = [filter];
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}
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function update() {
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filter.iGlobalTime = game.time.totalElapsedSeconds();
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}
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function render() {
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}
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