macros.asm

INCLUDE "macros/enum.asm"
INCLUDE "macros/basestats.asm"

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/pic.asm"
INCLUDE "macros/predef.asm"
INCLUDE "macros/rst.asm"
INCLUDE "macros/mobile.asm"
INCLUDE "macros/trainer.asm"
INCLUDE "macros/trade_anim.asm"
INCLUDE "macros/pals.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

dbww: MACRO
	db \1
	dw \2, \3
	ENDM

dbwww: MACRO
	db \1
	dw \2, \3, \4
	ENDM

dn: MACRO
	rept _NARG / 2
	db (\1) << 4 + (\2)
	shift
	shift
	endr
	ENDM

dx: MACRO
x = 8 * ((\1) - 1)
	rept \1
	db ((\2) >> x) & $ff
x = x + -8
	endr
	ENDM

dt: MACRO ; three-byte (big-endian)
	dx 3, \1
	ENDM

dd: MACRO ; four-byte (big-endian)
	dx 4, \1
	ENDM

bigdw: MACRO ; big-endian word
	dx 2, \1
	ENDM

dba: MACRO ; dbw bank, address
	rept _NARG
	dbw BANK(\1), \1
	shift
	endr
	ENDM

dab: MACRO ; dwb address, bank
	rept _NARG
	dwb \1, BANK(\1)
	shift
	endr
	ENDM

lb: MACRO ; r, hi, lo
	ld \1, (\2 & $ff) << 8 + (\3 & $ff)
	ENDM

ln: MACRO ; r, hi, lo
	ld \1, (\2 & $f) << 4 + (\3 & $f)
	ENDM

bccoord equs "coord bc,"
decoord equs "coord de,"
hlcoord equs "coord hl,"

coord: MACRO
; register, x, y[, origin]
	if _NARG < 4
	ld \1, TileMap + SCREEN_WIDTH * (\3) + (\2)
	else
	ld \1, \4 + SCREEN_WIDTH * (\3) + (\2)
	endc
	ENDM

dwcoord: MACRO
	rept _NARG / 2
	dw TileMap + SCREEN_WIDTH * (\2) + (\1)
	shift
	shift
	endr
	ENDM

ldcoord_a: MACRO
	if _NARG < 3
	ld [TileMap + SCREEN_WIDTH * (\2) + (\1)], a
	else
	ld [\3 + SCREEN_WIDTH * (\2) + (\1)], a
	endc
	ENDM

lda_coord: MACRO
	if _NARG < 3
	ld a, [TileMap + SCREEN_WIDTH * (\2) + (\1)]
	else
	ld a, [\3 + SCREEN_WIDTH * (\2) + (\1)]
	endc
	ENDM

; pic animations
frame: MACRO
	db \1
x = \2
IF _NARG > 2
rept _NARG +- 2
x = x | (1 << (\3 + 1))
	shift
endr
endc
	db x
	ENDM
setrepeat: MACRO
	db $fe
	db \1
	ENDM
dorepeat: MACRO
	db $fd
	db \1
	ENDM
endanim: MACRO
	db $ff
	ENDM


delanim: MACRO
	db $fc
	ENDM
dorestart: MACRO
	db $fe
	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


bcd: MACRO
	rept _NARG
	dn ((\1) % 100) / 10, (\1) % 10
	shift
	endr
ENDM

tiles EQUS "* $10"
tile EQUS "+ $10 *"

partymon: MACRO
	db \1
	db \2
	db \3, \4, \5, \6
	dw \7
	dt \8
rept 8
	shift
endr
rept 5
	bigdw \1
	shift
endr
	db \1, \2
	db \3, \4, \5, \6
rept 6
	shift
endr
	db \1
	db \2, \3, \4
	db \5
	db \6, \7
rept 7
	shift
endr
rept 7
	bigdw \1
	shift
endr
	db \1
ENDM

palettes EQUS "* 8"

ldpixel: MACRO
if _NARG >= 5
	lb \1, \2 * 8 + \4, \3 * 8 + \5
else
	lb \1, \2 * 8, \3 * 8
endc
endm

depixel EQUS "ldpixel de,"
bcpixel EQUS "ldpixel bc,"

dbpixel: MACRO
if _NARG >= 4
	db \1 * 8 + \3, \2 * 8 + \4
else
	db \1 * 8, \2 * 8
endc
endm

bgcoord: MACRO
IF _NARG >= 4
	ld \1, \3 * $20 + \2 + \4
ELSE
	ld \1, \3 * $20 + \2 + VBGMap0
ENDC
ENDM

hlbgcoord EQUS "bgcoord hl,"
debgcoord EQUS "bgcoord de,"
bcbgcoord EQUS "bgcoord bc,"
bgrows EQUS "* $20"

palred EQUS "$0001 *"
palgreen EQUS "$0020 *"
palblue EQUS "$0400 *"

dsprite: MACRO
; conditional segment is there because not every instance of
; this macro is directly OAM
if _NARG >= 7 ; y tile, y pxl, x tile, x pxl, vtile offset, flags, palette
	db (\1 * 8) % $100 + \2, (\3 * 8) % $100 + \4, \5, (\6 << 3) + (\7 & 7)
else
	db (\1 * 8) % $100 + \2, (\3 * 8) % $100 + \4, \5, \6
endc
endm

jumptable: MACRO
	ld a, [\2]
	ld e, a
	ld d, 0
	ld hl, \1
	add hl, de
	add hl, de
	ld a, [hli]
	ld h, [hl]
	ld l, a
	jp [hl]
endm

maskbits: macro
; returns to x
; usage in rejection sampling
; .loop
; 	call Random
; 	maskbits 30
; 	and x
; 	cp 30
; 	jr nc, .loop

x = 1
rept 8
IF \1 > x
x = (x + 1) * 2 +- 1
ENDC
endr
endm

homecall: MACRO
	ld a, [hROMBank]
	push af
	ld a, BANK(\1)
	rst Bankswitch

	call \1

	pop af
	rst Bankswitch
ENDM