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Three Section Playfield Screens

Posted by theloon, 06 October 2010 · 102 views

My bank for playfield graphics is filling up too fast. I have 16 basic room types (based on exit variations). I wanted each room type to have at least 3 different styles: Full room, Tunnel and Maze. Now that I have most full room and tunnel styles done I've only got 300+ bytes free. Ouch.

What I've come up with is rendering the top, middle and bottom in sections to reduce duplication of data. Check out what I mean below:
 pfscroll downdown
 playfield:
 XX.X........................X.XX
 XXXX........................XXXX
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
end

 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown
 
 playfield:
 XX............................XX
 X..............................X
 X..............................X
 X..............................X
 XX............................XX
end

 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown
 pfscroll downdown : pfscroll downdown : pfscroll downdown

 playfieldpos = 8
 playfield:
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 XXXX........................XXXX
 XX.X........................X.XX
end





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