reduce physics cpu usage

server/game/room/world/body/body.js

@@ -49,7 +49,7 @@ class Body {
 	}
 
 	applyDelta() {
-		this.world.applyDelta(this.packDelta());
+		this.world.applyDelta(this.packDelta(), this.pos);
 	}
 
 	applyForce(x, y, center) {

server/game/room/world/body/projectile/grapple.js

@@ -8,8 +8,10 @@ class Grapple extends Projectile {
 		super(world, pos);
 
 		this.r = pos.r;
-		this.x = pos.x * 32;
-		this.y = pos.y * 32;
+		this.x = pos.x;
+		this.y = pos.y;
+		this.xvel = pos.xvel;
+		this.yvel = pos.yvel;
 		this.xvel += Math.cos(this.r) * 0.25;
 		this.yvel += Math.sin(this.r) * 0.25;
 

server/game/room/world/body/projectile/missile.js

@@ -6,8 +6,8 @@ class Missile extends Projectile {
 	constructor(world, pos, source) {
 		super(world);
 
-		this.x = pos.x * 32;
-		this.y = pos.y * 32;
+		this.x = pos.x;
+		this.y = pos.y;
 		this.xvel = pos.xvel;
 		this.yvel = pos.yvel;
 		this.r = pos.r;

server/game/room/world/body/ship.js

@@ -15,6 +15,7 @@ class Ship extends Body {
 		// Body data.
 		this.x = pos.x || 0;
 		this.y = pos.y || 0;
+		this.r = player.team == 'b' ? Math.PI : 0;
 
 		this.type = 'ship';
 		this.class = build.ship;
@@ -64,6 +65,7 @@ class Ship extends Body {
 			if (this.grapple) {
 				this.grapple.retract();
 			} else {
+				let s = this.world.scale;
 				this.launchGrapple(this.inputs.mx, this.inputs.my);
 			}
 		}

server/game/room/world/index.js

@@ -22,21 +22,23 @@ class World {
 		this.tpsCount = 0;
 		this.tpsStart = Date.now();
 
+		this.scale = 32;
+
 		this.tickCount = 0;
 
 		this.bounds = {
-			left: -5,
-			right: 50,
-			top: -15,
-			bottom: 15
+			left: 0,
+			right: 250,
+			top: 0,
+			bottom: 30
 		}
 	}
 
 	addPlayer(player) {
 		this.players.add(player);
 		let pos = {
-			x: player.team == 'b' ? 200 : 0,
-			y: 0
+			x: player.team == 'b' ? this.bounds.right - 5 : 5,
+			y: this.bounds.bottom / 2
 		};
 		let ship = new Ship(this, pos, player);
 		player.ship = ship;
@@ -86,9 +88,14 @@ class World {
 		this.room.broadcast('effect', copula.packFull());
 	}
 
-	applyDelta(data) {
+	applyDelta(data, bodyPos) {
 		data = data.map(v => +(v.toFixed(3)));
-		this.players.forEach(player => player.applyDelta(data));
+		this.players.forEach(player => {
+			let dx = player.ship.pos.x - bodyPos.x;
+			let dy = player.ship.pos.y - bodyPos.y;
+			if (dx * dx + dy * dy < 900)
+				player.applyDelta(data)
+		});
 	}
 
 	explosion(pos, power) {
@@ -110,12 +117,12 @@ class World {
 	}
 
 	populate() {
-		for (var i = 0; i < 5; i++) {
+		for (var i = 0; i < 50; i++) {
 			let pos = {
-				x: Math.random() * 2000 - 200,
-				y: Math.random() * 500 - 250
+				x: Math.random() * this.bounds.right,
+				y: Math.random() * this.bounds.bottom
 			};
-			this.spawner.spawnAsteroid(pos.x, pos.y,Math.random() * 50 + 10);
+			this.spawner.spawnAsteroid(pos.x, pos.y, Math.random() * 50 + 10);
 		}
 	}
 
@@ -171,8 +178,9 @@ class World {
 			this.tps = this.tpsCount / 5 | 0;
 			this.tpsCount = 0;
 			this.tpsStart = Date.now();
-			if(this.tps < 50)
+			if(this.tps < 50) {
 				wingbase.warning(`${this.room.name} TPS: ${this.tps}`);
+			}
 		}
 
 		this.tpsCount++;

server/game/room/world/physics.js

@@ -44,7 +44,7 @@ class Physics {
 		let s = SCALE;
 		let bodyDef = new Box2D.b2BodyDef();
 		bodyDef.userData = body;
-		bodyDef.position = new b2Vec2(body.x / s || 0, body.y / s || 0);
+		bodyDef.position = new b2Vec2(body.x || 0, body.y || 0);
 		bodyDef.angle = body.r || 0;
 		bodyDef.fixedRotation = false;
 		bodyDef.active = true;
@@ -55,7 +55,7 @@ class Physics {
 		bodyDef.angularDamping = body.type == 'asteroid' ? 0.003 : 0.06;
 		bodyDef.type = body.type == 'structure' ?
 			Box2D.b2BodyType.b2_staticBody : Box2D.b2BodyType.b2_dynamicBody;
-		if (body.player || true) bodyDef.allowSleep = false;
+		if (body.player) bodyDef.allowSleep = false;
 		let b2body = this.world.CreateBody(bodyDef);
 
 		let fixtureDef = new Box2D.b2FixtureDef();