public class InputManager extends InputAdapter {

    private Vector2 lastTouch = new Vector2();
    private Queue<Integer> activeTouch = new Queue<Integer>();
    private boolean xLeft, xRight, yDown, yUp;

    public InputManager() {
        xLeft = false; xRight = false; yDown = false; yUp = false;
    }

    @Override
    public boolean touchDown(int screenX, int screenY, int pointer, int button) {
        activeTouch.addLast(pointer);
        return super.touchDown(screenX, screenY, pointer, button);
    }

    @Override
    public boolean touchUp(int screenX, int screenY, int pointer, int button) {
        if (activeTouch.size > 0) {
            activeTouch.removeValue(pointer, true);
        }

        return super.touchUp(screenX, screenY, pointer, button);
    }

    @Override
    public boolean touchDragged(int screenX, int screenY, int pointer) {
        System.out.println("Dragging:" + pointer + " Queue: " + activeTouch);
        if (pointer == activeTouch.first()) {
            Vector2 newTouch = new Vector2(screenX, screenY);
            Vector2 delta = newTouch.cpy().sub(lastTouch);
            lastTouch = newTouch;

            if (delta.x < 0) {
                xLeft = true;
                xRight = false;
            }
            else if (delta.x > 0) {
                xRight = true;
                xLeft = false;
            }
            else {
                xLeft = false;
                xRight = false;
            }

            if (delta.y < 0) {
                yDown = false;
                yUp = true;
            }
            else if (delta.y > 0) {
                yUp = false;
                yDown = true;
            }
            else {
                yUp = false;
                yDown = false;
            }
        }
        return super.touchDragged(screenX, screenY, pointer);
    }

    public boolean isRightMoved() {
        return xRight;
    }

    public boolean isLeftMoved() {
        return xLeft;
    }

    public boolean isUpMoved() {
        return yUp;
    }

    public boolean isDownMoved() {
        return yDown;
    }
}