[Java libGDX] Jak poprawnie przetwarzać eventy dotyku?

package com.tbane.mysticgems.MyInput;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.InputAdapter;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.utils.Array;
import com.tbane.mysticgems.Renderer;

public class MyInputProcessor extends InputAdapter {
    private OrthographicCamera camera;

    private boolean touchBegan = false;
    private boolean touchEnded = false;
    private boolean touchMoved = false;
    private Vector3 lastTouchPos = new Vector3();
    private boolean backPressed = false;

    public MyInputProcessor(OrthographicCamera camera) {
        this.camera = camera;
    }

    @Override
    public boolean keyDown(int keycode) {

        if (keycode == Input.Keys.BACK || keycode == Input.Keys.ESCAPE) {
            backPressed = true;
            return true;
        }

        return false;
    }

    @Override
    public boolean touchDown(int screenX, int screenY, int pointer, int button) {

        camera.unproject(lastTouchPos.set(screenX, screenY, 0));
        touchBegan = true;
        touchMoved = false;
        touchEnded = false;
        return true;
    }

    @Override
    public boolean touchUp(int screenX, int screenY, int pointer, int button) {

        camera.unproject(lastTouchPos.set(screenX, screenY, 0));
        touchEnded = true;
        touchBegan = false;
        touchMoved = false;
        return true;
    }

    @Override
    public boolean touchDragged(int screenX, int screenY, int pointer) {

        camera.unproject(lastTouchPos.set(screenX, screenY, 0));
        touchMoved = true;
        touchBegan = false;
        touchEnded = false;
        return true;
    }
    public void setBackPressed() { backPressed = true; }

    public boolean isTouchBegan() { return touchBegan; }
    public boolean isTouchEnded() { return touchEnded; }
    public boolean isTouchMoved() { return touchMoved; }
    public boolean isBackPressed() { return backPressed; }

    public Vector3 getTouchPosition() { return lastTouchPos.cpy(); }
    public float getTouchX() {
        float normalizedX = (lastTouchPos.x + 1f) * 0.5f; // 0..1
        float scale = Math.min(
            (float)Gdx.graphics.getWidth() / Renderer.VIRTUAL_WIDTH,
            (float)Gdx.graphics.getHeight() / Renderer.VIRTUAL_HEIGHT
        );
        float offsetX = (Gdx.graphics.getWidth() - Renderer.VIRTUAL_WIDTH * scale) * 0.5f;
        return (normalizedX * Gdx.graphics.getWidth() - offsetX) / scale;
    }

    public float getTouchY() {
        float normalizedY = (lastTouchPos.y + 1f) * 0.5f; // 0..1
        float scale = Math.min(
            (float)Gdx.graphics.getWidth() / Renderer.VIRTUAL_WIDTH,
            (float)Gdx.graphics.getHeight() / Renderer.VIRTUAL_HEIGHT
        );
        float offsetY = (Gdx.graphics.getHeight() - Renderer.VIRTUAL_HEIGHT * scale) * 0.5f;
        return (normalizedY * Gdx.graphics.getHeight() - offsetY) / scale;
    }

    public void reset() {
        touchBegan = false;
        touchEnded = false;
        touchMoved = false;
        backPressed = false;
    }
}