avocado-old/packages/entity/traits/graphical.js
2019-03-18 20:07:20 -05:00

53 lines
997 B
JavaScript

import {compose} from '@avocado/core';
import {Container} from '@avocado/graphics';
import {simpleState, Trait} from '../trait';
const decorate = compose(
);
class GraphicalBase extends Trait {
static defaultParams() {
return {
trackPosition: true,
};
}
static defaultState() {
return {};
}
constructor(entity) {
super(entity);
this._container = new Container();
}
get container() {
return this._container;
}
listeners() {
const trackPosition = this.params.get('trackPosition');
if (!trackPosition || !this._container.isValid) {
return {};
}
return {
traitAdded: (trait) => {
if ('positioned' === trait.constructor.type()) {
this._container.position = this.entity.position;
}
},
xChanged: (x) => {
this._container.x = x;
},
yChanged: (y) => {
this._container.y = y;
},
}
}
}
export class Graphical extends decorate(GraphicalBase) {}