70 lines
1.4 KiB
JavaScript
70 lines
1.4 KiB
JavaScript
import {compose} from '@avocado/core';
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import {Vector} from '@avocado/math';
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import {StateProperty, Trait} from '../trait';
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import {
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TraitUpdateDirectionalDirectionPacket,
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} from '../packets/trait-update-directional-direction.packet';
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const decorate = compose(
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StateProperty('direction', {
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track: true,
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}),
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);
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export class Directional extends decorate(Trait) {
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static defaultParams() {
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return {
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directionCount: 1,
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trackMovement: true,
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};
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}
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static defaultState() {
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return {
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direction: 0,
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};
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}
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static type() {
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return 'directional';
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}
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constructor(entity, params, state) {
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super(entity, params, state);
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this.directionCount = this.params.directionCount;
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}
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acceptPacket(packet) {
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if (packet instanceof TraitUpdateDirectionalDirectionPacket) {
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this.entity.direction = packet.data;
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}
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}
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packets(informed) {
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const {direction} = this.stateDifferences();
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if (direction) {
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return new TraitUpdateDirectionalDirectionPacket(direction.value);
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}
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}
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listeners() {
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const listeners = {
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directionChanged: () => {
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this._directionChanged = true;
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},
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};
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if (this.params.trackMovement) {
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listeners.movementRequest = (vector) => {
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if (Vector.isZero(vector)) {
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return;
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}
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this.entity.direction = Vector.toDirection(vector, this.directionCount);
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};
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}
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return listeners;
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}
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}
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