relative Rotation

[Rotti]

Hello,

I have a problem with moveObject.

The method only uses relative rotation.

I have made a xml file with waypoints and these waypoints have the x, y, z coordinates and the absolute rotation.

So now i have to calculate the relative rotation between my object and the waypoint.

I came up with this idea:

rx, ry, rz = rotation of the waypoint 
rxx, ryy, rzz = rotation of the object 
relative rotation = rx - rxx, ry - ryy, rz - rzz 

This is no code its just the math.

But the problem is that if the Y rotation of the waypoint is 359° and the Y rotation of the object is 0° it won't roll one degree to the left. Instead it will roll 359 degrees to the right which looks awful.

Can someone help me please?

[Walid]

You need to use math functions

math.sin() 
math.cos() 
math.rad() 

[Rotti]

I dont want the object to look towards the waypoint. I want it to move to the waypoint and to slowly rotate to the rotation of the waypoint

so that rx = rxx, ry = ryy, rz = rzz

I don't know how sin cos and rad could help me here...

[Walid]

I dont want the object to look towards the waypoint. I want it to move to the waypoint and to slowly rotate to the rotation of the waypoint

so that rx = rxx, ry = ryy, rz = rzz

I don't know how sin cos and rad could help me here...

Try to do it by yourself then post your code here and i will help u.

Also post some SS here

[Rotti]

I just found this function for c# on the internet.

I translated it to lua

function calculateDifferenceBetweenAngles(firstAngle, secondAngle) 
    difference = secondAngle - firstAngle; 
    while (difference < -180) do 
        difference = difference + 360 
    end 
    while (difference > 180) do 
        difference = difference - 360 
    end 
    return difference 
end 

It works.