Render To Texture Shader 2

var CustomPipeline2 = new Phaser.Class({

    Extends: Phaser.Renderer.WebGL.Pipelines.TextureTintPipeline,

    initialize:

    function CustomPipeline2 (game)
    {
        Phaser.Renderer.WebGL.Pipelines.TextureTintPipeline.call(this, {
            game: game,
            renderer: game.renderer,
            fragShader: [
            "precision mediump float;",

            "uniform float     time;",
            "uniform vec2      resolution;",
            "uniform sampler2D uMainSampler;",

            "float speed = time * 0.2;",
            "float pi = 3.14159265;",

            "void main( void ) {",

                "vec2 position = vec2(512.0/2.0+512.0/2.0*sin(speed*2.0), 400.0/2.0+400.0/2.0*cos(speed*3.0));",
                "vec2 position2 = vec2(512.0/2.0+512.0/2.0*sin((speed+2000.0)*2.0), 400.0/2.0+400.0/2.0*cos((speed+2000.0)*3.0));",

                "vec2 offset = vec2(512.0/2.0, 400.0/2.0) ;",
                "vec2 offset2 = vec2(6.0*sin(speed*1.1), 3.0*cos(speed*1.1));",

                "vec2 oldPos = (gl_FragCoord.xy-offset);",

                "float angle = speed*2.0;",

                "vec2 newPos = vec2(oldPos.x *cos(angle) - oldPos.y *sin(angle),",
                "oldPos.y *cos(angle) + oldPos.x *sin(angle));",

                "newPos = (newPos)*(0.0044+0.004*sin(speed*3.0))-offset2;",
                "vec2 temp = newPos;",
                "newPos.x = temp.x + 0.4*sin(temp.y*2.0+speed*8.0);",
                "newPos.y = (-temp.y + 0.4*sin(temp.x*2.0+speed*8.0));",
                "vec4 final = texture2D(uMainSampler,newPos);",
                "//final = texture2D(texCol,gl_FragCoord.xy*vec2(1.0/512, -1.0/400));",
                "gl_FragColor = vec4(final.xyz, 1.0);",

            "}"
            ].join('\n')
        });
    } 

});

var config = {
    type: Phaser.AUTO,
    parent: 'phaser-example',
    width: 512,
    height: 512,
    backgroundColor: '#000000',
    scene: {
        preload: preload,
        create: create,
        update: update
    }
};

var time = 0;

var game = new Phaser.Game(config);

function preload ()
{
    this.load.image('volcano', 'assets/pics/rick-and-morty-by-sawuinhaff-da64e7y.png');
    this.load.image('hotdog', 'assets/sprites/hotdog.png');

    customPipeline = game.renderer.addPipeline('Custom', new CustomPipeline2(game));
    customPipeline.setFloat2('resolution', game.config.width, game.config.height);
}

function create ()
{
    this.add.image(400, 300, 'volcano');
    this.add.image(400, 300, 'hotdog').setScrollFactor(0);

    this.cameras.main.setRenderToTexture(customPipeline);

    var cursors = this.input.keyboard.createCursorKeys();

    var controlConfig = {
        camera: this.cameras.main,
        left: cursors.left,
        right: cursors.right,
        up: cursors.up,
        down: cursors.down,
        acceleration: 0.06,
        drag: 0.0005,
        maxSpeed: 1.0
    };

    controls = new Phaser.Cameras.Controls.SmoothedKeyControl(controlConfig);
}

function update (t, delta)
{
    controls.update(delta);

    customPipeline.setFloat1('time', time);

    time += 0.005;
}
                        

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