playcanvas/build/playcanvas.prf/src/framework/components/light/system.js

PlayCanvas WebGL game engine

import { Color } from '../../../core/math/color.js';
import { Vec2 } from '../../../core/math/vec2.js';
import { LIGHTSHAPE_PUNCTUAL } from '../../../scene/constants.js';
import { Light, lightTypes } from '../../../scene/light.js';
import { ComponentSystem } from '../system.js';
import { LightComponent } from './component.js';
import { LightComponentData, properties } from './data.js';

class LightComponentSystem extends ComponentSystem {
		constructor(app){
				super(app);
				this.id = 'light';
				this.ComponentType = LightComponent;
				this.DataType = LightComponentData;
				this.on('beforeremove', this._onRemoveComponent, this);
		}
		initializeComponentData(component, _data) {
				const data = {
						..._data
				};
				if (!data.type) {
						data.type = component.data.type;
				}
				component.data.type = data.type;
				if (data.layers && Array.isArray(data.layers)) {
						data.layers = data.layers.slice(0);
				}
				if (data.color && Array.isArray(data.color)) {
						data.color = new Color(data.color[0], data.color[1], data.color[2]);
				}
				if (data.cookieOffset && data.cookieOffset instanceof Array) {
						data.cookieOffset = new Vec2(data.cookieOffset[0], data.cookieOffset[1]);
				}
				if (data.cookieScale && data.cookieScale instanceof Array) {
						data.cookieScale = new Vec2(data.cookieScale[0], data.cookieScale[1]);
				}
				if (data.enable) {
						console.warn('WARNING: enable: Property is deprecated. Set enabled property instead.');
						data.enabled = data.enable;
				}
				if (!data.shape) {
						data.shape = LIGHTSHAPE_PUNCTUAL;
				}
				const light = new Light(this.app.graphicsDevice, this.app.scene.clusteredLightingEnabled);
				light.type = lightTypes[data.type];
				light._node = component.entity;
				component.data.light = light;
				super.initializeComponentData(component, data, properties);
		}
		_onRemoveComponent(entity, component) {
				component.onRemove();
		}
		cloneComponent(entity, clone) {
				const light = entity.light;
				const data = [];
				let name;
				for(let i = 0; i < properties.length; i++){
						name = properties[i];
						if (name === 'light') {
								continue;
						}
						if (light[name] && light[name].clone) {
								data[name] = light[name].clone();
						} else {
								data[name] = light[name];
						}
				}
				return this.addComponent(clone, data);
		}
		changeType(component, oldValue, newValue) {
				if (oldValue !== newValue) {
						component.light.type = lightTypes[newValue];
				}
		}
}

export { LightComponentSystem };