40 lines
745 B
JavaScript
40 lines
745 B
JavaScript
import * as I from 'immutable';
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import {compose} from '@avocado/core';
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import {Rectangle, Vector} from '@avocado/math';
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import {EventEmitter} from '@avocado/mixins';
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const decorate = compose(
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EventEmitter,
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Vector.Mixin('position', 'x', 'y', {
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default: [0, 0],
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track: true,
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}),
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);
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class BodyBase {
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constructor(shape) {
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this.force = [0, 0];
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this.impulse = [0, 0];
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this.contacts = I.Set();
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this.shape = shape;
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}
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get aabb() {
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return Rectangle.translated(this.shape.aabb, this.position);
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}
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applyForce(vector) {
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this.force = Vector.add(this.force, vector);
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}
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applyImpulse(vector) {
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this.impulse = Vector.add(this.impulse, vector);
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}
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}
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export class Body extends decorate(BodyBase) {}
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