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Friday, February 24, 2012
Moving an image towards its direction? [closed]
I'm a relatively young java developer. I don't know much geometry yet. I need to know what the algorithm is (in code form) to move an object towards the direction it is rotated in. Thanks!
(Learning basic geometry/basic vector math would help a lot i.e. http://www.helixsoft.nl/articles/circle/sincos.htm)
ReplyDeleteIf your direction is some sort of vector - just offset current position by corresponding x and y components (potentially scaled).
If you direction is by angle - use sin/cos to compute offsets and scale:
x = speed * cos (angleRadians);
y = speed * sin (angleRadians);
To transform degrees to radians - divide by PI.