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So right now I have the horizontal and vertical positions, velocity, mass, and angle. I can add more variables if needed, these are just the first ones to come to my mind.

I think I can calculate the horizontal and vertical positions with something like this:

horizontal : newX = oldX + (oldVelocity * cos(angle))

vertical : newY = oldY + (oldVelocity * sin(angle))

If that is not a good way to do it, then let me know, it's just what I thought of with my limited physics knowledge.

I have no clue though how gravity and drag would factor in. I think the angle of the ball and the velocity should change from frame to frame, I just don't know how.

So, assuming a constant gravity, what would be a good way to make these calculations?

Thanks!