Making an object bounce off a surface?

[PerilousPanther]

If you know some calculus:

Modeling a projectile's motion

So recently @Maximum_ADHD posted this on twitter and through a series of events I was asked if I would post a tutorial showing how to do it. I’m not sure if this is exactly how Clone did it, but this is how I approached it. So to start off let’s cover the process that doing something like this would entail. Start with a position and velocity which we can use the above equations to find the projectile’s path. Find where this path intersects with in game geometry. Reflect the current velocity a…