math 360 deegres question

[Xwad]

Well it is a difficult problem for me and i can't explain it well. Hope you understand my problem.

I want to rotate a vehicles Z axis to the closer direction of the target Z.

For example: if the vehicles Z is 90˙ and target Z is 180˙ then rotate it in the positive direction (z=z+1) . If the target Z is 20˙ then rotate it in the negativ direction (z=z-1). always in the direction which is closer.

Edited February 24, 2019 by Xwad

[IIYAMA]

@Xwad

 

function getRotationOffset (rot1, rot2)
	local rotationOffset = (rot1 - rot2 + 360) % 360;
	if (rotationOffset > 180) then
		rotationOffset = 360 - rotationOffset
	else
		rotationOffset = -rotationOffset
	end
	return rotationOffset
end

function getRotationDifference (rot1, rot2)
	local rotationDifference = (rot1 - rot2 + 360) % 360;
	if (rotationDifference > 180) then
		rotationDifference = 360 - rotationDifference
	end
	return rotationDifference
end

 

Test them out and see which one you think need.

• getRotationOffset positive and negative.
• getRotationDifference only positive.

 

[Xwad]

yeeees, that's what i needed, thanks a lot