title: Moving a point (vector) on an angle + Libgdx
body: <p>i wanna move a point (Vector2) on an angle. i have my angle. but i'm not good in math or libgdx. for getting angle i use this : </p>
  
  <pre><code>degrees = (float) ((Math.atan2(touchPoint.x - x,
                  -(touchPoint.y - y)) * 180.0d / Math.PI) + 240.0f);
  </code></pre>
  
  <p>now, i want to move vector. but i really don't know what i must do... i looked at questions but there was just somethings about changing angle, not transfer. i think there must be a function for this in libgdx. please help.</p>
  
  <p>UPDATE :</p>
  
  <pre><code>public class Games implements ApplicationListener {
  
  SpriteBatch spriteBatch;
  Texture texture;
  float x = 160;
  float y = 5;
  
  Vector2 touch;
  Vector2 movement;
  Vector2 position;
  Vector2 dir;
  Vector2 velocity;
  
  float speed;
  float deltaTime;
  
  @Override
  public void create() {
      spriteBatch = new SpriteBatch();
      texture = new Texture(Gdx.files.internal("images/1.png"));
  
      touch = new Vector2();
      movement = new Vector2();
      position = new Vector2();
      dir = new Vector2();
      velocity = new Vector2();
  
      speed = 5;
      deltaTime = Gdx.graphics.getDeltaTime();
  }
  
  public void render() {
      Gdx.gl.glClear(Gdx.gl10.GL_COLOR_BUFFER_BIT);
      deltaTime += 0.5f;
  
      spriteBatch.begin();
  
      begin(deltaTime);
      spriteBatch.draw(texture, position.x, position.y);
  
      spriteBatch.end();
  }
  
  private void begin(float deltaTime) {
      touch.set(Gdx.input.getX(), Gdx.input.getY());
  
      position.set(x, y);
      dir.set(touch).sub(position).nor();
      velocity.set(dir).scl(speed);
      movement.set(velocity).scl(deltaTime);
      position.add(movement);
  }
  </code></pre>