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Results tagged with mathematics
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user 2111
Mathematics questions deal with the arithmetic, geometry, calculus, formulae and other calculations used in the development of a game.
99
votes
Accepted
What are atan and atan2 used for in games?
The tangent formula is this:
tan(angle) = opposite/adjacent
Refer to this drawing:
Where a is the adjacent side, o is the opposite side and theta is the angle. Similarly, sine and cosine are sin( …
- 4,303
3
votes
Calculating and detecting curves
For the curve or straight line problem, I think I'd keep a list of the positions of old input. Then, I'd check the slope between every point (delta Y / delta X). If the slope does not change a lot, th …
- 4,303
8
votes
Accepted
Angle of Reflection
I'm not sure if I understood your problem correctly, but I assumed that what you want to do is find the resultant direction of you ball after a collision.
Here's a quick drawing on my white board tha …
- 4,303