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Arthur Pacaud
bc606ed1be
* When launching the Debugger to inspect a game, open the Console to see internal messages sent by the game, JavaScript code or the game engine. * This is an advanced feature that is useful to find issues in your game or to see if your game is displaying any internal error.
79 lines
3.2 KiB
TypeScript
79 lines
3.2 KiB
TypeScript
//A simple PIXI filter doing some color changes
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namespace gdjs {
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const logger = new gdjs.Logger('Dummy effect');
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import PIXI = GlobalPIXIModule.PIXI;
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const DummyPixiFilter = function () {
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var vertexShader = null;
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var fragmentShader = [
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'precision mediump float;',
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'',
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'varying vec2 vTextureCoord;',
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'uniform sampler2D uSampler;',
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'uniform float opacity;',
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'',
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'void main(void)',
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'{',
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' mat3 nightMatrix = mat3(0.6, 0, 0, 0, 0.7, 0, 0, 0, 1.3);',
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' gl_FragColor = texture2D(uSampler, vTextureCoord);',
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' gl_FragColor.rgb = mix(gl_FragColor.rgb, nightMatrix * gl_FragColor.rgb, opacity);',
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'}',
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].join('\n');
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var uniforms = {
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opacity: { type: '1f', value: 1 },
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};
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PIXI.Filter.call(this, vertexShader, fragmentShader, uniforms);
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};
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DummyPixiFilter.prototype = Object.create(PIXI.Filter.prototype);
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DummyPixiFilter.prototype.constructor = DummyPixiFilter;
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// Register the effect type and associate it with a "filter creator" object, containing
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// functions to create and manipulate the filter.
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// Don't forget your extension name in the effect type!
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gdjs.PixiFiltersTools.registerFilterCreator('MyDummyExtension::DummyEffect', {
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// MakePIXIFilter should return a PIXI.Filter, that will be applied on the PIXI.Container (for layers)
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// or the PIXI.DisplayObject (for objects).
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makePIXIFilter: function (layer, effectData) {
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const filter = new DummyPixiFilter();
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// If you need to store the time or some state, you can set it up now:
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// filter._time = 0;
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// But be careful about the existing member of the filter (consider
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// updating the filter uniforms directly).
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// You can also access to the effect parameters, classified by type:
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// `effectData.doubleParameters.opacity`
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// `effectData.stringParameters.someImage`
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// `effectData.stringParameters.someColor`
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// `effectData.booleanParameters.someBoolean`
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logger.info(
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'The PIXI texture found for the Dummy Effect (not actually used):',
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(layer
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.getRuntimeScene()
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.getGame()
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.getImageManager() as gdjs.PixiImageManager).getPIXITexture(
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effectData.stringParameters.someImage
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)
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);
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return filter;
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},
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// Function called at every frame, after events and before the frame is rendered.
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updatePreRender: function (filter, layer) {
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// If your filter depends on the time, you can get the elapsed time
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// with `layer.getElapsedTime()`.
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// You can update the uniforms or other state of the filter.
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},
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// Function that will be called to update a (number) parameter of the PIXI filter with a new value
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updateDoubleParameter: function (filter, parameterName, value) {
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if (parameterName === 'opacity') {
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filter.uniforms.opacity = gdjs.PixiFiltersTools.clampValue(value, 0, 1);
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}
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},
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// Function that will be called to update a (string) parameter of the PIXI filter with a new value
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updateStringParameter: function (filter, parameterName, value) {},
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// Function that will be called to update a (boolean) parameter of the PIXI filter with a new value
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updateBooleanParameter: function (filter, parameterName, value) {},
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});
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}
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