I am creating a road editor in Unity. I have the data of each road segment that comes after another stored in a text file. It also includes 0-360° values for the segments rotation.
For example, the road file describes a spiral by incrementing the tilt [x] value by 5 every other segment. I apply the values like so:
segment.transform.rotation = Quaternion.Euler(segment.tilt, segment.turn * -1f, segment.height);
As you have noticed, I invert the turn value as otherwise the track is mirrored for some reason.
The track and the spiral in it looks perfectly fine in Unity. Now I want to write the data back to the text file. The track is unchanged, so in the best scenario I expect exactly the same values.
When using this line of code to obtain the values:
segment.transform.rotation.x I get only 0 as value.
I then tried segment.transform.localEulerAngles.x. Here it looks good until the tilt value reaches 90°.
Then, instead of the next value being 95°, it goes back to 85°.
So for example:
90.00000 0.00000 180.00000 // This line is OK, the spiral is at 90 degrees
85.00000 180.0000 0.00000 // This next line is not okay!
95.00000 0.00000 180.00000 // This is what I need instead
Another random example [not inside the spiral]:
0.00000 171.37701 -4.24026 // What I read from the file the first time
0.00000 189.00000 356.00000 // What I get back from Unity
I guess I need to do some fancy mathematical calculation to get the correct values but I just can't wrap my head around it. Can anyone shed some light?