Introduction to Modeling with Graphics
Trajectory Program Fall 2005

1. Assignment - Make up a variation of the trajectory program examples below
   For example:
   • Make up your own "picture" or trajectory "world".
   • Draw a box, have the "ball" bounce around on the inside of the box
   • Make a simple pong game, the ball bounces back and forth between two paddles on either side
   • Make up some kind of interesting variation on the example programs below

2. Trajectory examples.
   - By varying the initial velocity and initial angle these programs show the path
   of an object towards a target.
   Single buffered programs display the path with no motion,
   Double buffered programs display the path with motion - animation

   You can choose to use one method or the other - you don't have do both kinds of programs.

   • trajectory1.c - enter angle, velocity (try 60 and 100 m/s), single buffering
   • trajectory1B.c - enter angle, velocity (try 60 and 100 m/s), double buffering, animated
   • trajectory2.c - enter angle, velocity (try 60 and 100 m/s), single buffering, bounces at x=800
   • trajectory2B.c - enter angle, velocity (try 60 and 100 m/s), double buffering, animated, bounces at x-800
   • trajectory3.c - enter angle, velocity (try 60 and 100 m/s), single buffering, simulates bouncing on the x axis
     "bouncefactor" determines the height of the bounce
   • trajectory3B.c - enter angle, velocity (try 60 and 100 m/s), double buffering, animated, simulates bouncing on the x axis
     "bouncefactor" determines the height of the bounce
   • trajectory.xls - spreadsheet for data testing of various angle/velocity amounts