@animech-public/playcanvas
Version:
PlayCanvas WebGL game engine
64 lines (61 loc) • 1.52 kB
JavaScript
import { EventHandler } from '../../core/event-handler.js';
class Component extends EventHandler {
constructor(system, entity) {
super();
this.system = void 0;
this.entity = void 0;
this.system = system;
this.entity = entity;
if (this.system.schema && !this._accessorsBuilt) {
this.buildAccessors(this.system.schema);
}
this.on('set', function (name, oldValue, newValue) {
this.fire(`set_${name}`, name, oldValue, newValue);
});
this.on('set_enabled', this.onSetEnabled, this);
}
static _buildAccessors(obj, schema) {
schema.forEach(descriptor => {
const name = typeof descriptor === 'object' ? descriptor.name : descriptor;
Object.defineProperty(obj, name, {
get: function () {
return this.data[name];
},
set: function (value) {
const data = this.data;
const oldValue = data[name];
data[name] = value;
this.fire('set', name, oldValue, value);
},
configurable: true
});
});
obj._accessorsBuilt = true;
}
buildAccessors(schema) {
Component._buildAccessors(this, schema);
}
onSetEnabled(name, oldValue, newValue) {
if (oldValue !== newValue) {
if (this.entity.enabled) {
if (newValue) {
this.onEnable();
} else {
this.onDisable();
}
}
}
}
onEnable() {}
onDisable() {}
onPostStateChange() {}
get data() {
const record = this.system.store[this.entity.getGuid()];
return record ? record.data : null;
}
set enabled(arg) {}
get enabled() {
return true;
}
}
export { Component };