ref: ce4c2d3d1247b7d90c7cf6d5b64ef486a88b70c7
dir: /macros/scripts/maps.asm/
MACRO def_object_events
REDEF _NUM_OBJECT_EVENTS EQUS "_NUM_OBJECT_EVENTS_\@"
db {_NUM_OBJECT_EVENTS}
DEF {_NUM_OBJECT_EVENTS} = 0
ENDM
;\1 x position
;\2 y position
;\3 sprite id
;\4 movement (WALK/STAY)
;\5 range or direction
;\6 text id
;\7 items only: item id
;\7 trainers only: trainer class/pokemon id
;\8 trainers only: trainer number/pokemon level
MACRO object_event
db \3
db \2 + 4
db \1 + 4
db \4
db \5
IF _NARG > 7
db TRAINER | \6
db \7
db \8
ELIF _NARG > 6
db ITEM | \6
db \7
ELSE
db \6
ENDC
DEF {_NUM_OBJECT_EVENTS} += 1
ENDM
MACRO def_warp_events
REDEF _NUM_WARP_EVENTS EQUS "_NUM_WARP_EVENTS_\@"
db {_NUM_WARP_EVENTS}
DEF {_NUM_WARP_EVENTS} = 0
ENDM
;\1 x position
;\2 y position
;\3 destination map (-1 = wLastMap)
;\4 destination warp id; starts at 1 (internally at 0)
MACRO warp_event
db \2, \1, \4 - 1, \3
DEF _WARP_{d:{_NUM_WARP_EVENTS}}_X = \1
DEF _WARP_{d:{_NUM_WARP_EVENTS}}_Y = \2
DEF {_NUM_WARP_EVENTS} += 1
ENDM
MACRO def_bg_events
REDEF _NUM_BG_EVENTS EQUS "_NUM_BG_EVENTS_\@"
db {_NUM_BG_EVENTS}
DEF {_NUM_BG_EVENTS} = 0
ENDM
;\1 x position
;\2 y position
;\3 sign id
MACRO bg_event
db \2, \1, \3
DEF {_NUM_BG_EVENTS} += 1
ENDM
;\1 source map
MACRO def_warps_to
FOR n, _NUM_WARP_EVENTS
warp_to _WARP_{d:n}_X, _WARP_{d:n}_Y, \1_WIDTH
ENDR
ENDM
;\1 x position
;\2 y position
;\3 map width
MACRO warp_to
event_displacement \3, \1, \2
ENDM
;\1 first bit offset / first object id
MACRO def_trainers
IF _NARG == 1
DEF CURRENT_TRAINER_BIT = \1
ELSE
DEF CURRENT_TRAINER_BIT = 1
ENDC
ENDM
;\1 event flag
;\2 view range
;\3 TextBeforeBattle
;\4 TextAfterBattle
;\5 TextEndBattle
MACRO trainer
DEF _ev_bit = \1 % 8
DEF _cur_bit = CURRENT_TRAINER_BIT % 8
ASSERT _ev_bit == _cur_bit, \
"Expected \1 to be bit {d:_cur_bit}, got {d:_ev_bit}"
db CURRENT_TRAINER_BIT
db \2 << 4
dw wEventFlags + (\1 - CURRENT_TRAINER_BIT) / 8
dw \3, \5, \4, \4
DEF CURRENT_TRAINER_BIT += 1
ENDM
;\1 x position
;\2 y position
;\3 movement data
MACRO map_coord_movement
dbmapcoord \1, \2
dw \3
ENDM
;\1 map name
;\2 map id
;\3 tileset
;\4 connections: combo of NORTH, SOUTH, WEST, and/or EAST, or 0 for none
MACRO map_header
DEF CURRENT_MAP_WIDTH = \2_WIDTH
DEF CURRENT_MAP_HEIGHT = \2_HEIGHT
DEF CURRENT_MAP_OBJECT EQUS "\1_Object"
\1_h::
db \3
db CURRENT_MAP_HEIGHT, CURRENT_MAP_WIDTH
dw \1_Blocks
dw \1_TextPointers
dw \1_Script
db \4
ENDM
; Comes after map_header and connection macros
MACRO end_map_header
dw {CURRENT_MAP_OBJECT}
PURGE CURRENT_MAP_WIDTH, CURRENT_MAP_HEIGHT, CURRENT_MAP_OBJECT
ENDM
; Connections go in order: north, south, west, east
;\1 direction
;\2 map name
;\3 map id
;\4 offset of the target map relative to the current map
; (x offset for east/west, y offset for north/south)
MACRO connection
; Calculate tile offsets for source (current) and target maps
DEF _src = 0
DEF _tgt = (\4) + 3
IF _tgt < 2
DEF _src = -_tgt
DEF _tgt = 0
ENDC
IF !STRCMP("\1", "north")
DEF _blk = \3_WIDTH * (\3_HEIGHT - 3) + _src
DEF _map = _tgt
DEF _win = (\3_WIDTH + 6) * \3_HEIGHT + 1
DEF _y = \3_HEIGHT * 2 - 1
DEF _x = (\4) * -2
DEF _len = CURRENT_MAP_WIDTH + 3 - (\4)
IF _len > \3_WIDTH
DEF _len = \3_WIDTH
ENDC
ELIF !STRCMP("\1", "south")
DEF _blk = _src
DEF _map = (CURRENT_MAP_WIDTH + 6) * (CURRENT_MAP_HEIGHT + 3) + _tgt
DEF _win = \3_WIDTH + 7
DEF _y = 0
DEF _x = (\4) * -2
DEF _len = CURRENT_MAP_WIDTH + 3 - (\4)
IF _len > \3_WIDTH
DEF _len = \3_WIDTH
ENDC
ELIF !STRCMP("\1", "west")
DEF _blk = (\3_WIDTH * _src) + \3_WIDTH - 3
DEF _map = (CURRENT_MAP_WIDTH + 6) * _tgt
DEF _win = (\3_WIDTH + 6) * 2 - 6
DEF _y = (\4) * -2
DEF _x = \3_WIDTH * 2 - 1
DEF _len = CURRENT_MAP_HEIGHT + 3 - (\4)
IF _len > \3_HEIGHT
DEF _len = \3_HEIGHT
ENDC
ELIF !STRCMP("\1", "east")
DEF _blk = (\3_WIDTH * _src)
DEF _map = (CURRENT_MAP_WIDTH + 6) * _tgt + CURRENT_MAP_WIDTH + 3
DEF _win = \3_WIDTH + 7
DEF _y = (\4) * -2
DEF _x = 0
DEF _len = CURRENT_MAP_HEIGHT + 3 - (\4)
IF _len > \3_HEIGHT
DEF _len = \3_HEIGHT
ENDC
ELSE
fail "Invalid direction for 'connection'."
ENDC
db \3
dw \2_Blocks + _blk
dw wOverworldMap + _map
db _len - _src
db \3_WIDTH
db _y, _x
dw wOverworldMap + _win
ENDM