@petkoneo/phaser3-rex-plugins
Version:
335 lines (281 loc) • 9.99 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.rexshockwavepipelineplugin = factory());
})(this, (function () { 'use strict';
// reference : https://www.geeks3d.com/20110408/cross-stitching-post-processing-shader-glsl-filter-geexlab-pixel-bender/
const frag = `\
#ifdef GL_FRAGMENT_PRECISION_HIGH
#define highmedp highp
#else
#define highmedp mediump
#endif
precision highmedp float;
// Scene buffer
uniform sampler2D uMainSampler;
varying vec2 outTexCoord;
// Effect parameters
uniform vec2 texSize;
uniform vec2 center;
uniform float waveRadius;
uniform float waveHalfWidth; // 10.0
uniform float powBaseScale; // 0.8
uniform float powExponent; // 0.1
void main (void) {
if (waveHalfWidth > 0.0) {
vec2 tc = outTexCoord * texSize;
tc -= center;
float diff = length(tc) - waveRadius;
if ((diff <= waveHalfWidth) && (diff >= -waveHalfWidth)) {
diff /= max(texSize.x, texSize.y);
float powDiff = 1.0 - pow(abs(diff*powBaseScale), powExponent);
tc += texSize * diff * powDiff;
}
tc += center;
gl_FragColor = texture2D(uMainSampler, tc / texSize);
} else {
gl_FragColor = texture2D(uMainSampler, outTexCoord);
}
}
`;
const PostFXPipeline = Phaser.Renderer.WebGL.Pipelines.PostFXPipeline;
const GetValue = Phaser.Utils.Objects.GetValue;
Phaser.Math.Clamp;
class ShockwavePostFxPipeline extends PostFXPipeline {
constructor(game) {
super({
name: 'rexShockwavePostFx',
game: game,
renderTarget: true,
fragShader: frag
});
this.centerX = 0; // position wo resolution
this.centerY = 0; // position wo resolution
this.waveWidth = 20;
this.powBaseScale = 0.8;
this.powExponent = 0.1;
}
resetFromJSON(o) {
this.setCenter(GetValue(o, 'center.x', undefined), GetValue(o, 'center.y', undefined));
this.setWaveRadius(GetValue(o, 'waveRadius', 0));
this.setWaveWidth(GetValue(o, 'waveWidth', 20));
this.setPowBaseScale(GetValue(o, 'powBaseScale', 0.8));
this.setPowExponent(GetValue(o, 'powExponent', 0.1));
return this;
}
onPreRender() {
this.set1f('waveRadius', this.waveRadius);
this.set1f('waveHalfWidth', this.waveWidth / 2);
this.set1f('powBaseScale', this.powBaseScale);
this.set1f('powExponent', this.powExponent);
var texWidth = this.renderer.width,
textHeight = this.renderer.height;
this.set2f('center', this.centerX, (textHeight - this.centerY));
this.set2f('texSize', texWidth, textHeight);
}
// center
setCenter(x, y) {
if (x === undefined) {
x = this.renderer.width / 2;
y = this.renderer.height / 2;
}
this.centerX = x;
this.centerY = y;
return this;
}
// waveRadius
setWaveRadius(value) {
if (value === undefined) {
value = 0;
}
this.waveRadius = value;
return this;
}
// waveWidth
setWaveWidth(value) {
if (value === undefined) {
value = 0;
}
this.waveWidth = value;
return this;
}
// powBaseScale
setPowBaseScale(value) {
this.powBaseScale = value;
return this;
}
// powExponent
setPowExponent(value) {
this.powExponent = value;
return this;
}
}
const GameClass = Phaser.Game;
var IsGame = function (object) {
return (object instanceof GameClass);
};
const SceneClass = Phaser.Scene;
var IsSceneObject = function (object) {
return (object instanceof SceneClass);
};
var GetGame = function (object) {
if ((object == null) || (typeof (object) !== 'object')) {
return null;
} else if (IsGame(object)) {
return object;
} else if (IsGame(object.game)) {
return object.game;
} else if (IsSceneObject(object)) { // object = scene object
return object.sys.game;
} else if (IsSceneObject(object.scene)) { // object = game object
return object.scene.sys.game;
}
};
var RegisterPostPipeline = function (game, postFxPipelineName, PostFxPipelineClass) {
GetGame(game).renderer.pipelines.addPostPipeline(postFxPipelineName, PostFxPipelineClass);
};
var AddPostFxPipelineInstance = function (gameObject, PostFxPipelineClass, config) {
if (config === undefined) {
config = {};
}
gameObject.setPostPipeline(PostFxPipelineClass);
var pipeline = gameObject.postPipelines[gameObject.postPipelines.length - 1];
pipeline.resetFromJSON(config);
if (config.name) {
pipeline.name = config.name;
}
return pipeline;
};
const SpliceOne = Phaser.Utils.Array.SpliceOne;
var RemovePostFxPipelineInstance = function (gameObject, PostFxPipelineClass, name) {
if (name === undefined) {
var pipelines = gameObject.postPipelines;
for (var i = (pipelines.length - 1); i >= 0; i--) {
var instance = pipelines[i];
if (instance instanceof PostFxPipelineClass) {
instance.destroy();
SpliceOne(pipelines, i);
}
}
} else {
var pipelines = gameObject.postPipelines;
for (var i = 0, cnt = pipelines.length; i < cnt; i++) {
var instance = pipelines[i];
if ((instance instanceof PostFxPipelineClass) && (instance.name === name)) {
instance.destroy();
SpliceOne(pipelines, i);
}
}
}
gameObject.hasPostPipeline = (gameObject.postPipelines.length > 0);
};
var GetPostFxPipelineInstance = function (gameObject, PostFxPipelineClass, name) {
if (name === undefined) {
var result = [];
var pipelines = gameObject.postPipelines;
for (var i = 0, cnt = pipelines.length; i < cnt; i++) {
var instance = pipelines[i];
if (instance instanceof PostFxPipelineClass) {
result.push(instance);
}
}
return result;
} else {
var pipelines = gameObject.postPipelines;
for (var i = 0, cnt = pipelines.length; i < cnt; i++) {
var instance = pipelines[i];
if ((instance instanceof PostFxPipelineClass) && (instance.name === name)) {
return instance;
}
}
}
};
class BasePostFxPipelinePlugin extends Phaser.Plugins.BasePlugin {
setPostPipelineClass(PostFxPipelineClass, postFxPipelineName) {
this.PostFxPipelineClass = PostFxPipelineClass;
this.postFxPipelineName = postFxPipelineName;
return this;
}
start() {
var eventEmitter = this.game.events;
eventEmitter.once('destroy', this.destroy, this);
RegisterPostPipeline(this.game, this.postFxPipelineName, this.PostFxPipelineClass);
}
add(gameObject, config) {
return AddPostFxPipelineInstance(gameObject, this.PostFxPipelineClass, config);
}
remove(gameObject, name) {
RemovePostFxPipelineInstance(gameObject, this.PostFxPipelineClass, name);
return this;
}
get(gameObject, name) {
return GetPostFxPipelineInstance(gameObject, this.PostFxPipelineClass, name);
}
}
var IsInValidKey = function (keys) {
return (keys == null) || (keys === '') || (keys.length === 0);
};
var GetEntry = function (target, keys, defaultEntry) {
var entry = target;
if (IsInValidKey(keys)) ; else {
if (typeof (keys) === 'string') {
keys = keys.split('.');
}
var key;
for (var i = 0, cnt = keys.length; i < cnt; i++) {
key = keys[i];
if ((entry[key] == null) || (typeof (entry[key]) !== 'object')) {
var newEntry;
if (i === cnt - 1) {
if (defaultEntry === undefined) {
newEntry = {};
} else {
newEntry = defaultEntry;
}
} else {
newEntry = {};
}
entry[key] = newEntry;
}
entry = entry[key];
}
}
return entry;
};
var SetValue = function (target, keys, value, delimiter) {
if (delimiter === undefined) {
delimiter = '.';
}
// no object
if (typeof (target) !== 'object') {
return;
}
// invalid key
else if (IsInValidKey(keys)) {
// don't erase target
if (value == null) {
return;
}
// set target to another object
else if (typeof (value) === 'object') {
target = value;
}
} else {
if (typeof (keys) === 'string') {
keys = keys.split(delimiter);
}
var lastKey = keys.pop();
var entry = GetEntry(target, keys);
entry[lastKey] = value;
}
return target;
};
class ShockwavePipelinePlugin extends BasePostFxPipelinePlugin {
constructor(pluginManager) {
super(pluginManager);
this.setPostPipelineClass(ShockwavePostFxPipeline, 'rexShockwavePostFx');
}
}
SetValue(window, 'RexPlugins.Pipelines.ShockwavePostFx', ShockwavePostFxPipeline);
return ShockwavePipelinePlugin;
}));