2019-03-22 13:16:07 -05:00
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import {compose} from '@avocado/core';
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2019-04-08 13:32:40 -05:00
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import {Vector} from '@avocado/math';
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import {BodyView} from '@avocado/physics';
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2019-03-22 13:16:07 -05:00
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2019-04-08 13:32:40 -05:00
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import {Trait} from '../trait';
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2019-03-22 13:16:07 -05:00
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const decorate = compose(
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);
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export class Physical extends decorate(Trait) {
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initialize() {
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2019-03-23 18:26:35 -05:00
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this._body = undefined;
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2019-03-24 18:58:32 -05:00
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this.bodyView = undefined;
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2019-03-23 18:26:35 -05:00
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this._world = undefined;
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}
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destroy() {
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if (this._world) {
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this._world.removeBody(this._body);
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}
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2019-03-24 18:58:32 -05:00
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if (this.bodyView) {
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this.bodyView.destroy();
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}
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2019-03-23 18:26:35 -05:00
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}
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get body() {
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return this._body;
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2019-03-22 13:16:07 -05:00
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}
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2019-03-23 18:26:35 -05:00
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set world(world) {
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2019-03-27 16:11:37 -05:00
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if (this._world) {
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this._world.removeBody(this._body);
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}
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if (this.bodyView) {
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this.bodyView.destroy();
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}
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2019-03-23 18:26:35 -05:00
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this._world = world;
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if (world) {
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2019-03-24 01:16:24 -05:00
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const body = world.createBody(this.entity.shape);
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world.associateBodyWithEntity(body, this.entity);
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2019-04-08 15:20:28 -05:00
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body.setCollisionForEntity(this.entity);
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2019-03-24 01:16:24 -05:00
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world.addBody(body);
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this._body = body;
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2019-03-24 18:58:32 -05:00
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if (this.entity.container) {
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this.bodyView = new BodyView(body);
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this.bodyView.position = Vector.scale(this.entity.position, -1);
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this.bodyView.zIndex = 101;
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this.entity.container.addChild(this.bodyView);
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}
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2019-03-23 18:26:35 -05:00
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}
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}
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listeners() {
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return {
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2019-03-27 01:49:48 -05:00
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addedToRoom: () => {
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this.entity.world = this.entity.room.world;
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2019-03-23 18:26:35 -05:00
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},
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positionChanged: () => {
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if (this._body) {
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2019-03-24 18:58:32 -05:00
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const position = this.entity.position;
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this._body.position = position;
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2019-03-23 18:26:35 -05:00
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}
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},
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};
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}
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methods() {
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return {
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applyForce: (force) => {
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if (this._world) {
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this._body.applyForce(force);
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}
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},
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2019-03-24 03:24:35 -05:00
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applyImpulse: (impulse, elapsed) => {
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2019-03-23 18:26:35 -05:00
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if (this._world) {
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2019-03-24 03:24:35 -05:00
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this._body.applyImpulse(impulse, elapsed);
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2019-03-23 18:26:35 -05:00
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}
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},
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}
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}
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2019-03-22 13:16:07 -05:00
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}
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