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Implement ECL instruction 98, for directional sprites.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 12 Aug 2019 00:22:25 +0200
parents 7f016dfbdfb1
children
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cdef struct Vector:
    float x, y, z

cdef Vector sub(Vector vec1, Vector vec2)
cdef Vector cross(Vector vec1, Vector vec2)
cdef float dot(Vector vec1, Vector vec2) nogil
cdef Vector normalize(Vector vec)