94 lines
4.3 KiB
NASM
94 lines
4.3 KiB
NASM
.Section "oam objects" superfree
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;relative pointers to objects:
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ObjectLUT:
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.dw (Object000-ObjectLUT)
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.dw (Object001-ObjectLUT)
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Object000:
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.db %11011010 ;object type designation
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;bit3=subroutine? if set, this object has its own subroutine that must be executed every frame
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;bit4=animate? if set, this object is animated(a special table for each object specifies the exact animation with commands for tileloading, waiting, animation loop etc)
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;bit5=screen-bound? if set, this object must move in accordance with background layer 0
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;bit6=object active? if set, this object is active and needs to be processed. if clear, this sprite doesnt need to be processed
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;bit7=object present? if set, this slot has an object. if clear, its considered empty and can be overwritten
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.db %00000000 ;object type designation 2
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.db $02 ;number of subroutine. executed if bit6 of object type is set
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.db 0 ;tileset to use
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.db $00 ;current "frame" of tileset to display
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.db $08 ;starting tile in vram
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.db %00110110 ;palette and config
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.dw $80 ;x position
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.dw $80 ;y position
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.db 0 ;current frame in animation list
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.db 0 ;object command list to use
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.db 0 ;object offset in object list.
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.db 0 ;palette number to upload for this sprite
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.dw 0 ;object number
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.db 0 ;x-displacement
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.db 0 ;y-displacement
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.db 0 ;z-displacement
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.db 0 ;animation repeat counter for nop
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.db 0 ;collision subroutine
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.db 0 ;vector speed. 3bit + 3bit sub-pixel accuracy. msb set=target speed met.(speed=0: don't calc vector movement)
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.db 0 ;void
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.db 0 ;void
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.db 0 ;void
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.db 7 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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;cpu usage indicator
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Object001:
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.db %11101000 ;object type designation
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;bit0=X position sign of sprite(usually 0)
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;bit1=Object size flag
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;bit2=collidable
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;bit3=subroutine? if set, this object has its own subroutine that must be executed every frame
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;bit4=animate? if set, this object is animated(a special table for each object specifies the exact animation with commands for tileloading, waiting, animation loop etc)
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;bit5=bg-bound? if set, this object must move in accordance with background layer 0
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;bit6=object active? if set, this object is active and needs to be drawn. if clear, this sprite doesnt need to be drawn, but must be processed, anyway
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;bit7=object present? if set, this slot has an object. if clear, its considered empty and can be overwritten
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.db %00100000 ;object type designation 2
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;bit7=pseudo 3d sprite that needs to be moved according to z-value when background moves
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;bit6=don't upload tiles for this sprite. useful for stuff like particles and such where lots of sprites share the same tiles.
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;bit5=don't upload palette for this sprite.
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;bits0-3: current position in vector angle LUT (didn't fit anywhere else)
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.db 1 ;number of subroutine. executed if bit6 of object type is set
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.db 0 ;tileset to use
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.db $00 ;current "frame" of tileset to display
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.db $ff ;starting tile in vram
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.db %00110001 ;palette and config
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.dw 1*16 ;x position
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.dw 1 ;y position
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.db 0 ;current frame in animation list
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.db 0 ;object command list to use
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.db 0 ;object offset in object list.
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.db 0 ;palette number to upload for this sprite
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.dw 0 ;object number
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.db 0 ;x-displacement
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.db 0 ;y-displacement
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.db 0 ;z-displacement
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.db 0 ;animation repeat counter for nop
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.db 0 ;collision subroutine
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.db 0 ;vector speed. bit0-2:subpixel speed. bit3-5:pixel speed. bit7 set: target speed met
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.db 0 ;vector target speed. bit0-2:subpixel speed target. bit3-5:pixel speed target. bit6,7: movement type(direct, linear slow, linear fast, smooth)
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.db 0 ;vector direction. bit0-5:direction.0=facing up. bit6=turning direction.(set=clockwise) msb set=target direction met.
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.db 0 ;vector target dir. bit0-5:target direction.0=facing up. bit6,7: movement type(direct, linear slow, linear fast, smooth)
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.db 0 ;subpixel buffer. bit0-2:vector speed subpixel buffer. bit3-7: direction turn speed sub-pixel buffer.
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.db 0 ;spare variable
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.ends |