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INCLUDE "macros/event.asm"
INCLUDE "macros/sound.asm"
INCLUDE "macros/text.asm"
INCLUDE "macros/charmap.asm"
INCLUDE "macros/move_effect.asm"
INCLUDE "macros/move_anim.asm"
INCLUDE "macros/movement.asm"
INCLUDE "macros/map.asm"
INCLUDE "macros/predef.asm"
INCLUDE "macros/rst.asm"
RGB: MACRO
dw ((\3) << 10) + ((\2) << 5) + (\1)
ENDM
percent EQUS "* $ff / 100"
dwb: MACRO
dw \1
db \2
ENDM
dbw: MACRO
db \1
dw \2
ENDM
dbbw: MACRO
db \1, \2
dw \3
ENDM
dbwww: MACRO
db \1
dw \2, \3, \4
ENDM
dn: MACRO
rept _NARG / 2
db (\1) << 4 + (\2)
shift
shift
endr
ENDM
dt: MACRO ; three-byte (big-endian)
db ((\1) >> 16) & $ff
db ((\1) >> 8) & $ff
db (\1) & $ff
ENDM
bigdw: MACRO ; big-endian word
db (\1) / $100
db (\1) % $100
ENDM
lb: MACRO ; r, hi, lo
ld \1, (\2) << 8 + (\3)
ENDM
bccoord: MACRO
coord bc, \1, \2
ENDM
decoord: MACRO
coord de, \1, \2
ENDM
hlcoord: MACRO
coord hl, \1, \2
ENDM
coord: MACRO
ld \1, TileMap + SCREEN_WIDTH * (\3) + (\2)
ENDM
; pic animations
frame: MACRO
db \1
db \2
ENDM
setrepeat: MACRO
db $fe
db \1
ENDM
dorepeat: MACRO
db $fd
db \1
ENDM
endanim: MACRO
db $ff
ENDM
; Constant enumeration
const_def: MACRO
const_value SET 0
ENDM
const: MACRO
\1 EQU const_value
const_value SET const_value + 1
ENDM
sine_wave: MACRO
; \1: amplitude
x = 0
rept $20
; Round up.
dw (sin(x) + (sin(x) & $ff)) >> 8
x = x + (\1) * $40000
endr
ENDM
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