86 lines
1.8 KiB
JavaScript
86 lines
1.8 KiB
JavaScript
import {compose, TickingPromise} 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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const decorate = compose(
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StateProperty('isMobile'),
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StateProperty('speed'),
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)
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export class Mobile extends decorate(Trait) {
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static defaultState() {
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return {
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isMobile: true,
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speed: 0,
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};
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}
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static type() {
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return 'mobile';
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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.appliedMovement = [0, 0];
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}
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methods() {
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return {
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moveFor: (vector, duration) => {
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return new TickingPromise(
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() => {},
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(elapsed, resolve) => {
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duration -= elapsed;
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if (duration <= 0) {
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return resolve();
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}
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this.entity.requestMovement(Vector.normalize(vector));
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},
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);
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},
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applyMovement: (vector) => {
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this.appliedMovement = Vector.add(this.appliedMovement, vector);
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},
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forceMovement: (movement) => {
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this.entity.x += movement[0];
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this.entity.y += movement[1];
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},
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requestMovement: (vector) => {
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if (!this.isMobile) {
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return;
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}
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this.entity.applyMovement(Vector.scale(
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Vector.normalize(vector),
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this.speed
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));
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this.entity.emit('movementRequest', this.appliedMovement);
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},
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}
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}
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tick(elapsed) {
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if (Vector.isZero(this.appliedMovement)) {
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return;
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}
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if (this.entity.is('physical')) {
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this.entity.applyImpulse(this.appliedMovement);
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}
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else {
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const appliedMovement = Vector.scale(
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this.appliedMovement,
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elapsed
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);
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this.entity.forceMovement(appliedMovement);
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}
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this.appliedMovement = [0, 0];
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}
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}
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