Glossary

Iteration
One iteration occurs each time the screen is repainted, this is also reffered to as a frame. This occurs once each 1/60 seconds (17 miliseconds). For each object the number of current iteration is based on when the object was created. For example each bullet generated by a  has it's own iterator that starts from 0.

Velocity
Amount of pixels that an object moves per one iteration.

Type
See main article  in patterns.xml.

Pattern
See main article  in patterns.xml.

Bullet
See main article  in bullets.xml.