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import { System } from '@serpentity/serpentity';
import RenderableWithAttributesNode from '../nodes/renderable_with_attributes';
/**
* Updates the renderables based on their attribuets
*
* @extends {external:Serpentity.System}
* @class AttributesToRenderableSystem
* @param {object} config a configuration object to extend.
*/
export default class AttributesToRenderableSystem extends System {
constructor(config = {}) {
super();
/**
* The node collection of renderable entities
*
* @property {external:Serpentity.NodeCollection} renderables
* @instance
* @memberof AttributesToRenderableSystem
*/
this.renderables = null;
}
/**
* Initializes system when added. Requests renderable nodes and
* attaches to event listeners to add / remove them to pixi stage
*
* @function added
* @memberof AttributesToRenderableSystem
* @instance
* @param {external:Serpentity.Engine} engine the serpentity engine to
* which we are getting added
*/
added(engine) {
this.renderables = engine.getNodes(RenderableWithAttributesNode);
}
/**
* Clears system resources when removed.
*
* @function removed
* @instance
* @memberof AttributesToRenderableSystem
*/
removed() {
this.renderables = null;
}
/**
* Runs on every update of the loop. Updates the graphics so they're
* rendered correctly
*
* @function update
* @instance
* @param {Number} currentFrameDuration the duration of the current
* frame
* @memberof AttributesToRenderableSystem
*/
update(currentFrameDuration) {
for (const renderable of this.renderables) {
renderable.container.container.position.x = renderable.position.x;
renderable.container.container.position.y = renderable.position.y;
renderable.container.container.rotation = renderable.angle.angle;
}
}
}
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