Does anyone know how the color effect of chetiry was achieved and if there is a bB kernel avalible?
I am working on the japanese equivilent of it (hopefully that makes sence).
Edited by Trip2018, Fri Feb 2, 2018 7:25 AM.
Posted Fri Feb 2, 2018 7:25 AM
Does anyone know how the color effect of chetiry was achieved and if there is a bB kernel avalible?
I am working on the japanese equivilent of it (hopefully that makes sence).
Edited by Trip2018, Fri Feb 2, 2018 7:25 AM.
Posted Fri Feb 2, 2018 9:22 AM
To figure out how things are done, load the game in Stella:
Then use the Developer Key COMMAND-<COMMA> on a Mac or ALT-<COMMA> on Linux/Windows to put Stella in Fixed Debug Colors Mode:
If you enter the debugger in Stella by hitting ` (left of 1, above TAB) and select the TIA tab you can see what those colors represent:
So Chetiry updates the object colors while the scanline goes across the screen (ie: Racing The Beam):
The black on the left & right is where VBLANK is turned on in order to prevent the screen from being drawn beyond the left/right of the gameplay area.
The setting of VBLANK on the right is 1 pixel late, which the ball is used to hide. This makes the last column of blocks 5 pixels wide instead of 4. You can use the developer key COMMAND-B or ALT-B to turn the ball off and on in order to see why it's being used:
Ball ON:
Ball OFF:
Posted Fri Feb 2, 2018 1:03 PM
I have no idea how or what I should do to implemment this as I have no experience with assembly language.
Edited by Trip2018, Fri Feb 2, 2018 1:59 PM.
Posted Sat Feb 3, 2018 6:12 AM
Perfect, thanks.
Edited by Trip2018, Sat Feb 3, 2018 6:12 AM.
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