Forums » Games » Designing Game Classes

I am in the process of designing the classes for my game.

Question: What is the best way to describe a parent class of Projectile and its child classes? A Bullet subclass can be a Projectile. There is also Bombs and maybe Grenades. What are the properties of the super (parent) class and the child classes such as Bullet?

Does anybody have any experience with this?

You may also use 2 classes: Projectile, and ProjectileFactory, the latter spawning and configuring Projectile instances according to a set of properties that it maintains for each known type.

ig.Projectile.TYPE = {
BASIC:0,
BULLET:1,
GRENADE:2,
BOMB:3,
NUKE:4,
SNOT:5,
PEBBLE:6,
NAG:7};

ig.ProjectileFactory = ig.Class.Extend...

makeProjectile: function(x, y, settings)
{
  var pType = settings.type ? settings.type : ig.Projectile.BASIC;
  switch (pType)
  ...
}

Heh have a look at JavaScript development patterns. I personally create universal parent class and then change its properties in different instances.