restructure world files for copulae

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

@@ -0,0 +1,96 @@
+'use strict';
+
+const uuid = require('uuid');
+
+const b2Vec2 = require('box2d-html5').b2Vec2;
+
+class Body {
+	constructor(world) {
+		this.x = 0;
+		this.y = 0;
+		this.r = 0;
+		this.b2body = false;
+		this.type = 'asteroid';
+		this.health = 1;
+		this.world = world;
+		this.id = uuid.v4().slice(0, 8);
+	}
+
+	applyDelta() {
+		this.world.applyDelta(this.id, this.packDelta());
+	}
+
+	applyForce(x, y, center) {
+		let b = this.b2body;
+		let c = center ? new b2Vec2(center.x, center.y) : b.GetWorldCenter();
+		b.ApplyForce(new b2Vec2(x, y), c);
+	}
+
+	applyImpulse(x, y, center) {
+		let b = this.b2body;
+		let c = center ? new b2Vec2(center.x, center.y) : b.GetWorldCenter();
+		b.ApplyLinearImpulse(new b2Vec2(x, y), c);
+	}
+
+	applyTorque(f) {
+		this.b2body.ApplyTorque(f);
+	}
+
+	contact() {
+	}
+
+	tick() {
+		let pos = this.b2body.GetPosition();
+		let bounds = this.world.bounds;
+
+		if(pos.x < bounds.left) this.applyForce(0.03, 0);
+		if(pos.x > bounds.right) this.applyForce(-0.03, 0);
+		if(pos.y < bounds.top) this.applyForce(0, 0.03);
+		if(pos.y > bounds.bottom) this.applyForce(-0, -0.03);
+
+		this.tickType();
+	}
+
+	tickType() {
+	}
+
+	packDelta() {
+		let pos = this.b2body.GetPosition();
+		let vel = this.b2body.GetLinearVelocity();
+		let rot = this.b2body.GetAngleRadians();
+		let rvel = this.b2body.GetAngularVelocity();
+
+		// Simple array to save bandwidth.
+		return [pos.x, pos.y, vel.x, vel.y, rot, rvel].concat(this.packTypeDelta());
+	}
+
+	packTypeDelta() {
+	}
+
+	packFull() {
+	}
+
+	get center() {
+		return {
+			x: this.b2body.GetWorldCenter().x,
+			y: this.b2body.GetWorldCenter().y
+		};
+	}
+
+	get pos() {
+		return {
+			x: this.b2body.GetPosition().x,
+			y: this.b2body.GetPosition().y,
+			r: this.b2body.GetAngleRadians()
+		};
+	}
+
+	get vel() {
+		return {
+			x: this.b2body.GetLinearVelocity().x,
+			y: this.b2body.GetLinearVelocity().y
+		}
+	}
+}
+
+module.exports = Body;