mirror of
https://github.com/wassname/phaser.git
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photonstorm
137 lines
4.2 KiB
JavaScript
137 lines
4.2 KiB
JavaScript
PIXI.C64PlasmaFilter = 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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// Shader by ssdsa (https://www.shadertoy.com/view/MslGzN)
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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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"// 2D plasma in C64 graphics style",
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"//",
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"// Version 1.0 (2013-03-31)",
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"// Simon Stelling-de San Antonio",
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"float camtime = 1.23*iGlobalTime;",
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"void main(void)",
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"{",
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"vec2 p = gl_FragCoord.xy / iResolution.xy;",
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"p.y = 1.0 - p.y;",
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"p *= 200.0;",
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"p.x *= (iResolution.x / iResolution.y);",
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"p.x /= 2.0;",
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"p = floor(p);",
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"p.x *= 2.0;",
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"float a = p.x+30.0*sin(p.x/21.0 + 0.3*sin(0.4*camtime))+20.0*cos(p.y/19.0 + 0.2*cos(0.6*camtime))-160.0;",
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"float b = p.y+30.0*cos(p.y/18.0 + 0.4*sin(0.7*camtime))+20.0*sin(p.x/16.0 + 0.5*cos(0.7*camtime))- 97.0;",
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"float e = floor((length(vec2(a,b))",
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"+4.0*mod(floor((p.x+p.y+p.y)/2.0),2.0))/13.0);",
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"float c;",
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"if (e == 0.0) { c = 9.0;",
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"} else if (e == 1.0) { c = 2.0;",
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"} else if (e == 2.0) { c = 8.0;",
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"} else if (e == 3.0) { c = 10.0;",
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"} else if (e == 4.0) { c = 15.0;",
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"} else if (e == 5.0) { c = 7.0;",
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"} else if (e == 6.0) { c = 1.0;",
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"} else if (e == 7.0) { c = 13.0;",
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"} else if (e == 8.0) { c = 3.0;",
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"} else if (e == 9.0) { c = 14.0;",
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"} else if (e == 10.0) { c = 4.0;",
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"} else if (e == 11.0) { c = 6.0;",
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"} else if (e == 12.0) { c = 0.0;",
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"} else if (e == 13.0) { c = 11.0;",
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"} else if (e == 14.0) { c = 5.0;",
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"} else { c = 12.0;",
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"}",
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"vec3 col;",
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"if (c == 0.0) { col = vec3(0.0);",
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"} else if (c == 1.0) { col = vec3(1.0);",
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"} else if (c == 2.0) { col = vec3(137.0, 64.0, 54.0)/256.0;",
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"} else if (c == 3.0) { col = vec3(122.0, 191.0, 199.0)/256.0;",
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"} else if (c == 4.0) { col = vec3(138.0, 70.0, 174.0)/256.0;",
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"} else if (c == 5.0) { col = vec3(104.0, 169.0, 65.0)/256.0;",
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"} else if (c == 6.0) { col = vec3( 62.0, 49.0, 162.0)/256.0;",
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"} else if (c == 7.0) { col = vec3(208.0, 220.0, 113.0)/256.0;",
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"} else if (c == 8.0) { col = vec3(144.0, 95.0, 37.0)/256.0;",
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"} else if (c == 9.0) { col = vec3( 92.0, 71.0, 0.0)/256.0;",
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"} else if (c == 10.0) { col = vec3(187.0, 119.0, 109.0)/256.0;",
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"} else if (c == 11.0) { col = vec3( 85.0, 85.0, 85.0)/256.0;",
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"} else if (c == 12.0) { col = vec3(128.0, 128.0, 128.0)/256.0;",
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"} else if (c == 13.0) { col = vec3(172.0, 234.0, 136.0)/256.0;",
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"} else if (c == 14.0) { col = vec3(124.0, 112.0, 218.0)/256.0;",
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"} else { col = vec3(171.0, 171.0, 171.0)/256.0;",
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"}",
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"gl_FragColor = vec4(col,1.0);",
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"}"];
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}
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PIXI.C64PlasmaFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.C64PlasmaFilter.prototype.constructor = PIXI.C64PlasmaFilter;
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Object.defineProperty(PIXI.C64PlasmaFilter.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.C64PlasmaFilter(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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