Hello, I have what should be a basic math question, but I keep messing
it up.
How do I code an equation so that when I have an object facing an
arbitrary vector, pressing a key will make it move forwards in that
direction?
(I understand all the key-based setup, it's just the equation for moving
in the arbitrary vector direction that's got me stuck)
right now i can make something move up and down, or left and right, but
if I want to rotate a triangle, then move it so that the 'tip' always
points in the direction it's going to move, I get stuck.
the thing I have which doesn't work is something like
_____________________
vector = [0 0 0]
def specialKey(key,x,y):
if key == 'up':
vector[0] = vector[0] + 1
_______________________
which I assume should be more like
--------------------------------
vector = [0 0 0]
def specialKey(key,x,y):
if key == 'up':
vector[0] = vector[0] * math.cos(something???)+ 1
vector[2] = vector[2] * math.sin(something??)+1
----------------------------------
Any help would be greatly appreciated!
ty, Mike
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