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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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4
server/game/player.js
View file

@ -25,6 +25,10 @@ class Player {
});
}
sendWorld() {
this.connection.send('world', this.ship.id);
}
sendUpdate() {
if (Object.keys(this.delta).length == 0) return;
this.connection.send('update', this.delta);

1
server/game/room/index.js
View file

@ -20,6 +20,7 @@ class Room {
this.players.add(player);
this.setTeam(player, this.teamA.size > this.teamB.size ? 'b' : 'a');
this.world.addPlayer(player);
player.sendWorld();
}
remove(player) {

11
server/game/room/world/body.js
View file

@ -2,6 +2,8 @@
const uuid = require('uuid');
const b2Vec2 = require('box2d-html5').b2Vec2;
class Body {
constructor(world) {
this.x = 0;
@ -18,6 +20,15 @@ class Body {
this.world.applyDelta(this.id, this.pack());
}
applyForce(x, y, center) {
let b = this.b2body;
b.ApplyForce(new b2Vec2(x, y), b.GetWorldCenter());
}
applyTorque(f) {
this.b2body.ApplyTorque(f);
}
pack() {
let pos = this.b2body.GetPosition();
let rot = this.b2body.GetAngleRadians();

2
server/game/room/world/index.js
View file

@ -51,7 +51,7 @@ class World {
tick(self) {
self.physics.step();
if (Math.random() < 0.01) {
if (Math.random() < 0.1) {
self.bodies.forEach(body => body.applyDelta());
}
}

13
server/game/room/world/physics.js
View file

@ -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 = [];

13
server/game/room/world/ship.js
View file

@ -5,8 +5,6 @@ const hulls = require('./traits/hulls.json');
const Body = require('./body.js');
const b2Vec2 = require('box2d-html5').b2Vec2;
class Ship extends Body {
constructor(world, player, build) {
super(world);
@ -24,17 +22,18 @@ class Ship extends Body {
}
if (data.forward) {
//console.log('forward');
b.ApplyLinearImpulse(b2Vec2(0, 500), b.GetWorldCenter());
b.ApplyTorque(2000);
let power = 0.02;
let x = Math.cos(this.b2body.GetAngleRadians()) * power;
let y = Math.sin(this.b2body.GetAngleRadians()) * power;
this.applyForce(x, y);
}
if (data.left) {
b.ApplyTorque(-20);
this.applyTorque(-0.02);
}
if (data.right) {
b.ApplyTorque(20);
this.applyTorque(0.02);
}
}
}