Rotation problem

Unity Engine
1

Hello,

I am using this code to rotate a GameObject when the player pushes a button:

private void Rotate()
	{
		if(Input.GetKey(KeyCode.A))
		{
			transform.Find("Graphics").Rotate(0,180,0);
		}
		if(Input.GetKey(KeyCode.D))
		{
			transform.Find("Graphics").Rotate(0,0,0);
		}
	}

but when i press the “a”-button, the object starts rotating to random y-directions (like 180.0037, 0.003726649 or 180.004) but never stays at the desired y-value 180.

I am using no other code on this object.
Do you know, what is wrong with this?

2

It’s your gameobject “Graphics” rotation set to (0, 0, 0)? If i’m not wrong, the Rotate function “add” the rotation.

3

The rotations of the object “Graphics” and the root object are both set to (0,0,0).

4

Try using this http://unity3d.com/support/documentation/ScriptReference/Transform-rotation.html which set’s the rotation, rather than rotating the object. or else put “* Time.deltaTime” into your brackets and see if that solves anything

5

Nothing is actually wrong, it’s just standard floating-point imprecision. Rotations are stored internally as quaternions, and translating back and forth between euler angles isn’t 100% precise.

–Eric

6

How are you calling your Rotate function?

7

I am calling the Rotate function from ´the method Update, but using Quaternion.Euler and Quaternion.Slerp instead of Transform.Rotate solves the problem, thanks.

But what is the diffference between these functions?