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Unused Jungle FG effect (255, rev. 2)
By  Hiccup on 11-24-12, 02:28 pm
Category 'Effects and decorations', known
The height of the Sprite is 4 blocks. It is counted by the block where it is placed downwards. The image is repeated sideways.

Isn't scroll up/down suppose to be a signed value?
Data files: none
Sprite fields:
Swimmable: checkbox at nybble 4-5 with mask
Scroll Up/Down: signed value at nybble 10-11. If swimmable, the image doesn't move. If negative value it scrolls down, if positive value it scrolls up.
Unused Jungle FG effect (255, rev. 3)
By  Hiccup on 02-06-13, 07:41 pm
Category 'Effects and decorations', known, fully documented
The height of the Sprite is 4 blocks. The image is repeated sideways.
Data files: none
Sprite fields:
Swimmable: checkbox at nybble 4-5 with mask
Scroll Up/Down: signed value at nybble 10-11. If swimmable, the image doesn't move. If negative value it scrolls down, if positive value it scrolls up.