I have been looking everywhere trying to find out how to convert an angle in radians (expressed as -Pi to Pi) to a heading vector.
The only [x,y] answer I have found is, [cos(angle), sin(angle)] , however, this doesn't work! Or am I missing something?
I just want a vector pointing at a direction of a specified angle, and for it to have a magnitude of 1, such is called a "heading vector" I believe. At least it is in the various game code I look at.
CLARIFICATION: A heading vector is a vector with a magnitude of 1 with the start at 0, and the end (the arrowhead) at some value within a unit circle. A heading vector is a way of showing direction as a vector. I want to take an angle and express it as a vector, however, people seem to just be telling me how to do unit conversions.
I appreciate you trying to be helpful, however, hopefully these clarifications will guide others to giving more fitting responses.