add boilerplate for mounts and fixtures

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

@@ -0,0 +1,24 @@
+'use strict';
+
+const Blaster = require('./blaster.js');
+
+class Mount {
+	constructor(ship, data, fixture) {
+		this.ship = ship;
+
+		this.type = data.type || 'turret';
+		this.fixture = false; // TODO: Create fixture.
+
+		this.traversal = data.traversal ? {
+			cw: data.bounds[0],
+			ccw: data.bounds[1]
+		} : false;
+	}
+
+	destruct() {
+		if (!this.fixture) return;
+		this.fixture.destruct();
+	}
+}
+
+module.exports = Mount;