View changes for revision:                              
Cloud FG effect (315, rev. 1)
By  MeroMero on 05-15-13, 05:12 pm
Category 'Effects and decorations', unknown
(no description)
Data files:
• /polygon_unit/evf_cloud1.nsbtx
Sprite fields:
Opacity: value at nybble 5-6. Modulo 32. 0 is transparent, 30 is almost opaque, 31 is completely red.
Mixed shift: value at nybble 7. Up-shift is 3*(n mod 4) tiles, and left-shift is 4*(n\4) where n is the value of this nybble.
Left-shift: value at nybble 8. Moves by n pixels where n is the value of this nybble.
Up-shift: value at nybble 9. Moves by 20*n pixels where n is the value of this nybble.
Horizontal speed: value at nybble 10. 0 scrolls with the BG, 15 is the fastest.
Vertical speed: value at nybble 11. 0 scrolls with the BG, 15 is the fastest.
Cloud FG effect (315, rev. 2)
By  MeroMero on 05-15-13, 05:12 pm
Category 'Effects and decorations', known, fully documented
(no description)
Data files:
• /polygon_unit/evf_cloud1.nsbtx
Sprite fields:
Opacity: value at nybble 5-6. Modulo 32. 0 is transparent, 30 is almost opaque, 31 is completely red.
Mixed shift: value at nybble 7. Up-shift is 3*(n mod 4) tiles, and left-shift is 4*(n\4) where n is the value of this nybble.
Left-shift: value at nybble 8. Moves by n pixels where n is the value of this nybble.
Up-shift: value at nybble 9. Moves by 20*n pixels where n is the value of this nybble.
Horizontal speed: value at nybble 10. 0 scrolls with the BG, 15 is the fastest.
Vertical speed: value at nybble 11. 0 scrolls with the BG, 15 is the fastest.