topical media & game development

talk show tell print

bouncing balls

demo(s)


Study the examples below. However, first you may want to read the first chapters of the online tutorial. Also, you need to download the blaxxun VRML Contact3D plugin from www.blaxxun.com

The examples contain variants of a bouncing ball, increasing in complexity and abstraction. Example 0 is based on the scripting example in lesson web3d/3. Example 2-5 elaborate on this example. The final example (5) gives a prototype (abstraction) with the acceleration as a parameter.

variants

assignment

Modify example 4 including for example movement in the x or z direction, by extending the effect function, or by including damping.. Then transform this modification into a prototype as in example 5, providing an abstraction for color and speed.

explorations

Variants 6-9 contain combinations of bouncing ball entities, using the prototype abstraction facility. Have a look at these variants, but remind that, despite the visual effects, they primarily represent a software engineering effort.

remarks

Many of the attributes of this collection of examples, such as the roatation speed and colors, are implicit, that is built in in the code. You should strive to make such variables available for manipulation, by means of abstraction, using prototypes.

results



(C) Æliens 18/6/2009

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.