avocado-old/packages/physics/dummy/body.js
2019-04-28 23:45:03 -05:00

41 lines
801 B
JavaScript

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