I had trouble finding a function to lerp rotations, so I wrote my own. There is probably a better way to do this, or at least a more efficient way to write the function, but this is how I did it.
This can be used to interpolate angles, like smoothing out an object targeting the mouse.
function lerp_angle(a, b, t)
local full_rot = (math.pi*2)
a = a % full_rot
b = b % full_rot
local diff = ( b - a ) % full_rot
local corrected = 0
if diff < math.pi then
corrected = diff
else
corrected = diff - full_rot
end
return (a + corrected * t) % full_rot
end
(I should go without saying but just in case) Licence for this code is CC0. You can use it however you want.
