60 lines
1.2 KiB
JavaScript
60 lines
1.2 KiB
JavaScript
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import {compose} from '@avocado/core';
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import {Vector} from '@avocado/math';
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import {simpleState, Trait} from '../trait';
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const decorate = compose(
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simpleState('isMobile'),
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simpleState('speed'),
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)
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class MobileBase extends 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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constructor(entity) {
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super(entity);
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this.requestedMovement = [0, 0];
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}
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actions() {
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return {
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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.requestedMovement = Vector.scale(
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Vector.hypotenuse(vector),
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this.speed
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);
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this.entity.emit('movementRequest', this.requestedMovement);
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},
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}
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}
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listeners() {
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return {
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tick: (elapsed) => {
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if (Vector.isZero(this.requestedMovement)) {
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return;
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}
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const requestedMovement = Vector.scale(
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this.requestedMovement,
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elapsed
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);
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this.requestedMovement = [0, 0];
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this.entity.x += requestedMovement[0];
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this.entity.y += requestedMovement[1];
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},
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}
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}
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}
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export class Mobile extends decorate(MobileBase) {}
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