private void handleKeyboardInput() {
		while(Keyboard.next()) {
			if (Keyboard.getEventKeyState()) {
				if(Keyboard.getEventKey() == Keyboard.KEY_ESCAPE) {
					System.exit(0);
				}
				if(Keyboard.getEventKey() == Keyboard.KEY_RETURN) {
					mouseActive = !mouseActive;
				}
			}
		}
		
		moveDir.set(0.0f,0.0f,0.0f);
		float MOVE_SPEED = 0.2f;
		if(Keyboard.isKeyDown(Keyboard.KEY_LEFT)) {
			moveDir.setX(-MOVE_SPEED);
		}
		if(Keyboard.isKeyDown(Keyboard.KEY_RIGHT)) {
			moveDir.setX(MOVE_SPEED);
		}
		if(Keyboard.isKeyDown(Keyboard.KEY_UP)) {
			moveDir.setZ(-MOVE_SPEED);
		}
		if(Keyboard.isKeyDown(Keyboard.KEY_DOWN)) {
			moveDir.setZ(MOVE_SPEED);
		}
		lb.move(moveDir);	
	}