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    <p>There are two important types of objects in a game. There are objects that contain processes, and there are objects that interact with the environment and the user. </p> <p>For those objects that run a process like changing the opacity of objects you'll want them to be independant of any class level variables. They should simply take in value(s) and return value(s). If you have a process to calculate gravity, the process should take in the object that it gravity is being calculated on, and return the the amount of gravity that the object is experiencing, and the direction of gravity if the game takes place in space. </p> <p>The second more important types of objects are those that interact with the user and the environment. These objects should all inheret of the same base class. The base class will require an image, and the x and y position, and can have variables that perform specific processes like changing the speed or direction of the variable. With this base class in place you can then perform proccesses like the gravity proccess mentioned earlier using every objects "built-in" variables like speed, direction, and x and y position. </p> <p>You will also want to set up your objects to run peices of code under certain conditions. It may be a good idea to have your base class provide functions that get run when one of these conditions are met. Some useful conditional functions are a conditional function to go of when an object is first created and when it is destroyed. A conditional function to go of after a timer is set. A conditional functional to go of continually where you can place code to draw images on the screen. A conditional function to go off When a keyboard or mouse button is pushed. A conditional function to go off a set amount of times per second to calculate things like gravity on an object. </p> <p>This framework has worked very well for me when creating games. It works for any type of game, and works horribly for other types of programs. Sorry if my writin is unclear, I'm typing on my iPod and It would be hard for me to go back and edit things on here. </p>
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