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GhostBlaster - A special game for the 10th anniversary of CCJVQ (Quebec VideoGame Collectors Club)

Day 1 : Camera movement

The idea behind this camera movement is to keep the player in the center of the screen, of the action. The actual result is too fast to be really appreciate, but will slowdown a little bit when adding more coding like collision detection and various elements including the ghosts to blast!

The coding trick is to build up the screen to display in RAM based on where the player is in the level and put the result on screen as soon as possible when getting a nmi interruption (this is important for two things : smooth rendering and avoid graphical glitches). The side effect of this trick is to need almost all the available RAM just for the camera rendering.

More details in the future (if I decide to keep you informed about it during its development).

This is a top secret video, please keep the secret.

BLOG LINK : http://newcoleco.dev-fr.org/p4155/2009-06-14-colecovision-ghostblaster.html