Friday, 18 May 2012

Scroll it the hard way

18th May 2012

Something more interesting to be added to Trance Sector. A 4-directional scrolling field. Well, that's what I have spent most of today's Trance Sector session with. I wanted to get the scrolling movement to move according to the direction the player uses with the joystick. I created a new counter which can check which value will indicate the direction for scrolling background field. Then I stored values of 0 - 3 into the scroll counter. Where 0 = Up, 1 = Down, 2 = Left, 3 = Right, then I added a routine that could check for what value the counter is and added subroutines, which would scroll the characters that formed the background field, according to direction. This took quite a lot of programming to get implemented into the game, but I still have plenty of memory of additional code, since sacrificing the logo to build a new title screen. (The logo will be used for the intro instead). My next task (Possibly tomorrow) will be to activate the shield for the player, for any time it hits a shield tile. (On later levels), then hyperspace (Warping) to a different area on the same level screen.

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