@petkoneo/phaser3-rex-plugins
Version:
306 lines (251 loc) • 9.52 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.rexeffectlayerplugin = factory());
})(this, (function () { 'use strict';
var NearestPowerOf2 = function (value) {
value--;
value |= value >> 1;
value |= value >> 2;
value |= value >> 4;
value |= value >> 8;
value |= value >> 16;
value++;
return value;
};
const Shader = Phaser.GameObjects.Shader;
const AddItem = Phaser.Utils.Array.Add;
const RemoveItem = Phaser.Utils.Array.Remove;
class EffectLayer extends Shader {
constructor(scene, key, x, y, width, height) {
// gameObjects -> render-texture -> shader
if (typeof (x) === 'object') {
var config = x;
({ x, y, width, height } = config);
}
if (x === undefined) { x = 0; }
if (y === undefined) { y = 0; }
if (width === undefined) { width = scene.sys.scale.width; }
if (height === undefined) { height = scene.sys.scale.height; }
// render-texture -> shader
width = NearestPowerOf2(width);
height = NearestPowerOf2(height);
var rt = scene.make.renderTexture({ x: x, y: y, width: width, height: height, add: false });
super(scene, key, x, y, width, height);
this.type = 'rexEffectLayer';
this
.setSampler2DBuffer('iChannel0', rt.frame.glTexture, width, height, 0)
.setScrollFactor(0)
.setOrigin(0);
this.rt = rt;
this.children = [];
this.boot();
}
boot() {
this.scene.game.events.on('prerender', this.drawTargets, this);
this.scene.sys.scale.on('resize', this.onWindowResize, this);
}
destroy(fromScene) {
// This Game Object has already been destroyed
if (!this.scene || this.ignoreDestroy) {
return;
}
this.scene.game.events.off('prerender', this.drawTargets, this);
this.scene.sys.scale.off('resize', this.onWindowResize, this);
// Private texture will be removed by shader game object
this.clear();
super.destroy(fromScene);
this.rt.destroy(fromScene);
this.rt = null;
}
drawTargets() {
// Assume that game objects are displayed on main camera.
var camera = this.scene.sys.cameras.main;
var offsetX = camera.scrollX + this.x;
var offsetY = camera.scrollY + this.y;
var rt = this.rt;
rt.clear();
var child;
for (var i = 0, cnt = this.children.length; i < cnt; i++) {
child = this.children[i];
rt
.draw(
child,
child.x - offsetX,
child.y - offsetY
);
}
}
set1f(key, value) {
this.setUniform(`${key}.value`, value);
return this;
}
set2f(key, x, y) {
this.setUniform(`${key}.value.x`, x);
this.setUniform(`${key}.value.y`, y);
return this;
}
set3f(key, x, y, z) {
this.setUniform(`${key}.value.x`, x);
this.setUniform(`${key}.value.y`, y);
this.setUniform(`${key}.value.z`, z);
return this;
}
setFloat4(key, x, y, z, w) {
this.setUniform(`${key}.value.x`, x);
this.setUniform(`${key}.value.y`, y);
this.setUniform(`${key}.value.z`, z);
this.setUniform(`${key}.value.w`, w);
return this;
}
contains(gameObject) {
return (this.children.indexOf(gameObject) !== -1);
}
add(gameObjects) {
AddItem(this.children, gameObjects, 0,
// Callback of item added
function (gameObject) {
gameObject.once('destroy', this.onChildDestroy, this);
}, this);
return this;
}
remove(gameObjects, destroyChild) {
if (destroyChild === undefined) {
destroyChild = false;
}
RemoveItem(this.children, gameObjects,
// Callback of item removed
function (gameObject) {
gameObject.off('destroy', this.onChildDestroy, this);
if (destroyChild) {
gameObject.destroy();
}
}
);
return this;
}
clear(destroyChild) {
var gameObject;
for (var i = 0, cnt = this.children.length; i < cnt; i++) {
gameObject = this.children[i];
gameObject.off('destroy', this.onChildDestroy, this);
if (destroyChild) {
gameObject.destroy();
}
}
this.children.length = 0;
return this;
}
onChildDestroy(child, fromScene) {
this.remove(child, !fromScene);
}
resize(width, height) {
width = NearestPowerOf2(width);
height = NearestPowerOf2(height);
var rt = this.rt;
// Set size of render texture
rt.setSize(width, height);
this.setSampler2DBuffer('iChannel0', rt.frame.glTexture, width, height, 0);
// Set size of shader
this.setSize(width, height);
return this;
}
onWindowResize() {
// Get new window size
var width = this.scene.sys.scale.width;
var height = this.scene.sys.scale.height;
this.resize(width, height);
}
}
function Factory (key, x, y, width, height) {
var gameObject = new EffectLayer(this.scene, key, x, y, width, height);
this.scene.add.existing(gameObject);
return gameObject;
}
const GetAdvancedValue = Phaser.Utils.Objects.GetAdvancedValue;
function Creator (config, addToScene) {
if (config === undefined) { config = {}; }
if (addToScene !== undefined) {
config.add = addToScene;
}
var key = GetAdvancedValue(config, 'key', undefined);
var x = GetAdvancedValue(config, 'x', undefined);
var y = GetAdvancedValue(config, 'y', undefined);
var width = GetAdvancedValue(config, 'width', undefined);
var height = GetAdvancedValue(config, 'height', undefined);
var gameObject = new EffectLayer(this.scene, key, x, y, width, height);
this.scene.add.existing(gameObject);
return gameObject;
}
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 EffectLayerPlugin extends Phaser.Plugins.BasePlugin {
constructor(pluginManager) {
super(pluginManager);
// Register our new Game Object type
pluginManager.registerGameObject('rexEffectLayer', Factory, Creator);
}
start() {
var eventEmitter = this.game.events;
eventEmitter.on('destroy', this.destroy, this);
}
}
SetValue(window, 'RexPlugins.GameObjects.EffectLayer', EffectLayer);
return EffectLayerPlugin;
}));