(Autoplay and pause at 0:33) What happens next? How does the software decide?
Realistic games In order for games to appear realistic the programmers have to use what's called a physics engine, a piece of software that uses physics to find out what happens next. In 10-pin bowling the ball collides with some skittles, which may then collide with others (hopefully!). The speed of all the objects will change during this. What rules govern what speed they will move away with? Think and Talk
Task We can all describe roughly what will happen to the ball and a skittle but the game needs to respond very precisely to small changes in how fast it is hit or in what direction it is hit. Your task today is to find the equations which govern the speed the objects will move away with after a collision. To keep it simple we will not include concepts like air resistance or spin and we'll deal only in one dimension. We will then try to use these equations in a very simple simulation. In the first level we will assume the speed of the ball after the collision and calculate the speed of the skittle. In the second level you need to work out the speed of both. Simulators: http://www.myphysicslab.com/collideSpring.htmlhttp://www.myphysicslab.com/collideSpring.html http://www.fearofphysics.com/Collide/collide.html