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add basic ship movement and tracking

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This commit is contained in:
Asraelite 2016-03-22 11:56:53 +00:00
parent fcfe1e8790
commit 05ad81ed8d
10 changed files with 65 additions and 27 deletions
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13
server/game/room/world/physics.js
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@ -4,6 +4,8 @@
// so most changes done to it should be mirrored there to keep consistent
// physics between client and server.
const SCALE = 32;
const Box2D = require('box2d-html5');
const b2Vec2 = Box2D.b2Vec2;
@ -15,15 +17,17 @@ class Physics {
}
createBody(body) {
let s = SCALE;
let bodyDef = new Box2D.b2BodyDef();
bodyDef.userData = body;
bodyDef.position = new b2Vec2(body.x || 0, body.y || 0);
bodyDef.position = new b2Vec2(body.x / s || 0, body.y / s || 0);
bodyDef.fixedRotation = false;
bodyDef.active = true;
bodyDef.linearVelocity = new b2Vec2(body.xvel || 0, body.yvel || 0);
bodyDef.linearVelocity = new b2Vec2(body.xvel / s || 0, body.yvel / s || 0);
bodyDef.angularVelocity = body.rvel || 0;
bodyDef.type = body.type == 'static' ?
Box2D.b2Body.b2_staticBody : Box2D.b2Body.b2_dynamicBody;
Box2D.b2BodyType.b2_staticBody : Box2D.b2BodyType.b2_dynamicBody;
if (body.player) bodyDef.allowSleep = false;
let b2body = this.world.CreateBody(bodyDef);
let fixtureDef = new Box2D.b2FixtureDef();
@ -32,7 +36,7 @@ class Physics {
fixtureDef.restitution = 0;
for (var poly of body.structure) {
poly = poly.map(vertex => new b2Vec2(vertex[0], vertex[1]));
poly = poly.map(vertex => new b2Vec2(vertex[0] / s, vertex[1] / s));
fixtureDef.shape = new Box2D.b2PolygonShape();
fixtureDef.shape.SetAsArray(poly, poly.length);
b2body.CreateFixture(fixtureDef);
@ -46,7 +50,6 @@ class Physics {
for (var i = 0; i < this.toRemove.length; i++) {
this.world.DestroyBody(this.toRemove[i].b2body);
console.log(this.world.GetBodyList());
}
this.toRemove = [];