2D game Z rotation question

2D
1

Hi,

I have searched the forums in a couple of different ways but didnt see anything that could help me with this.

I have gone through the 2D tutorial and the FPS tutorials so far. After these, I got into a group trying to make a game using Unity (just a simple one for starters).

I am currently using Lerpz to practice with and I want to do something fairly specific. I want to make Lerpz’s head rotate up and down (so where he looks) in relation to the mouse pointer moving up and down.

I was able to make something like this work by creating my own capsule with a rigidbody. I then copied the mouselook.cs script from the FPS tutorial and modified it to use the Vector3.forward on the ‘Mouse Y’ section. That works exactly how I wnat it to. However, when I try to apply this to Lerpz’s head it does nothing and I just don’t understand why that would be.

Thanks for any help.

Mark

2

Hi, welcome to the forum!

Can you post the code you are using to control Lerpz’s head?

3

Surething, here is the code. It is just the typical mouselook script from the FPS tutorial with a slight modification to the mouseY section.

[AddComponentMenu(“Camera-Control/Mouse Look”)]
public class MouseLook : MonoBehaviour {

public enum RotationAxes { MouseXAndY = 0, MouseX = 1, MouseY = 2 }
public RotationAxes axes = RotationAxes.MouseXAndY;
public float sensitivityX = 15F;
public float sensitivityY = 15F;

public float minimumX = -360F;
public float maximumX = 360F;

public float minimumY = -60F;
public float maximumY = 60F;

float rotationX = 0F;
float rotationY = 0F;

Quaternion originalRotation;

void Update ()
{
if (axes == RotationAxes.MouseXAndY)
{
// Read the mouse input axis
rotationX += Input.GetAxis(“Mouse X”) * sensitivityX;
rotationY += Input.GetAxis(“Mouse Y”) * sensitivityY;

rotationX = ClampAngle (rotationX, minimumX, maximumX);
rotationY = ClampAngle (rotationY, minimumY, maximumY);

Quaternion xQuaternion = Quaternion.AngleAxis (rotationX, Vector3.up);
Quaternion yQuaternion = Quaternion.AngleAxis (rotationY, Vector3.left);

transform.localRotation = originalRotation * xQuaternion * yQuaternion;
//transform.localRotation = originalRotation * yQuaternion;
}
else if (axes == RotationAxes.MouseX)
{
rotationX += Input.GetAxis(“Mouse X”) * sensitivityX;
rotationX = ClampAngle (rotationX, minimumX, maximumX);

Quaternion xQuaternion = Quaternion.AngleAxis (rotationX, Vector3.up);
transform.localRotation = originalRotation * xQuaternion;
}
else
{
rotationY += Input.GetAxis(“Mouse Y”) * sensitivityY;
rotationY = ClampAngle (rotationY, minimumY, maximumY);

Quaternion yQuaternion = Quaternion.AngleAxis (rotationY, Vector3.forward);
transform.localRotation = originalRotation * yQuaternion;
}
}

void Start ()
{
// Make the rigid body not change rotation
if (rigidbody)
rigidbody.freezeRotation = true;
originalRotation = transform.localRotation;
}

public static float ClampAngle (float angle, float min, float max)
{
if (angle < -360F)
angle += 360F;
if (angle > 360F)
angle -= 360F;
return Mathf.Clamp (angle, min, max);
}
}

4

Have you definitely attached the script to the Lerpz head bone transform?

5

Well being as new as I am I guess that is what I am not sure about. I simply dragged the mouselook script and dropped it onto the piece of lerpz called head which was found under rootjoint/torso/shoulders.