Moving "foward" on a 2D game, 4 directions.

Unity Engine
1

I know there’s many thread about this, but I don’t understand yet… I have an sprite on a 2D game, were the back view (viewport) it’s the view from above:

The working code is:

//Rotaciones fijas de 90º, -90º y 180º
//   1
// 3  2
//  4
if(Input.GetKeyDown(KeyCode.LeftArrow)){
	//Debug.Log ("Origen: " + direccion);
	
	switch (direccion){
		case 1:
			character2.transform.Rotate(0,0,90);
			//Debug.Log ("Rota 90");
		break;
	
		case 2:
			character2.transform.Rotate(0,0,180);
			//Debug.Log ("Rota 180");
		break;
		
		case 4:
			character2.transform.Rotate(0,0,-90);
			//Debug.Log ("Rota -90");
		break;
	}
	
	direccion = 3;
	//Debug.Log ("Destino: 3");
	
}

if(Input.GetKeyDown(KeyCode.RightArrow)){
	//Debug.Log ("Origen: " + direccion);
	switch (direccion){
		case 1:
			character2.transform.Rotate(0,0,-90);
			//Debug.Log ("Rota -90");
		break;
		
		case 3:
			character2.transform.Rotate(0,0,180);
			//Debug.Log ("Rota 180");
		break;
		
		case 4:
			character2.transform.Rotate(0,0,90);
			//Debug.Log ("Rota 90");
		break;
	}
	
	direccion = 2;
//	Debug.Log ("Destino: 2");
	
}

if(Input.GetKeyDown(KeyCode.UpArrow)){
	//Debug.Log ("Origen: " + direccion);
	switch (direccion){
		case 2:
			character2.transform.Rotate(0,0,90);
			//Debug.Log ("Rota 90");
		break;
	
		case 3:
			character2.transform.Rotate(0,0,-90);
			//Debug.Log ("Rota -90");
		break;
		
		case 4:
			character2.transform.Rotate(0,0,180);
			//Debug.Log ("Rota 180");
		break;
	}
	
	direccion = 1;
	//Debug.Log ("Destino: 1");
	
}

if(Input.GetKeyDown(KeyCode.DownArrow)){
	//Debug.Log ("Origen: " + direccion);
	switch (direccion){
		case 1:
			character2.transform.Rotate(0,0,180);
			//Debug.Log ("Rota 180");
		break;
	
		case 2:
			character2.transform.Rotate(0,0,-90);
			//Debug.Log ("Rota 90");
		break;
		
		case 3:
			character2.transform.Rotate(0,0,90);
			//Debug.Log ("Rota -90");
		break;
	}
	
	direccion = 4;
	//Debug.Log ("Destino: 4");
	
}

Basically: When you press an arrow, depending on the previous facing direction, the games rotate the sprite… I think its a very complicated for what it does, I know theres a “LookAt” or “.foward” function, but I can’t get it working… how should I implement that??

Thanks!

2

It will be much simpler to use Euler angles

ie…
transform.rotation = Quaternion.Euler(0, 90, 0);