Recent content by black_em2

here this code I ended up using thanks to alephzero if([tile isRock]) { c = magnitude(d); \\d is a CGPoint of distance (x & y components) between two objects if(c <= 0.5) // ball collides { float x_tan, y_tan, det, A, B...

Well you are going to need to post your code, your errors, and the goal of the program or no one will be able to help you.

Thanks so much for all the help. Everything seems to be working great. When I looked over the values for the determinant again, it does seem pretty impossible that the determinant would result in 0. But I would rather include a check just in case something else glitched & doesn't cause the...

Thanks for the link, ill have to give it a good look through ok so then I just have to take the magnitude to find the corresponding velocity components X_v = sqrt((-A*xn)^2 + (B*xt)^2) Y_v = sqrt((-A*yn)^2 + (B*xt)^2) Also to solve the system of equations in a program, it seems easiest...

Yes one obstacle will always be static. The image (from wikipedia) was something I was using to ask if I could assume that the new velocity vector is orthogonal to the vector between the centers of the objects, which I think you are agreeing to in your post. I'm sorry but I'm just not...

I am trying to program the elastic collision response between a ball and an immovable obstacle (such as a rock with infinite mass). However I can't seem to figure out the angle at which the ball would bounce off of the object. Both objects are to be considered as circles, with their positions...