mirror of https://github.com/pret/pokecrystal.git
2436 lines
33 KiB
NASM
2436 lines
33 KiB
NASM
; Functions dealing with rendering and interacting with maps.
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Clearwc7e8:: ; 210f
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ld hl, wc7e8
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ld bc, $0018
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ld a, $0
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call ByteFill
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ret
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; 211b
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CheckTriggers:: ; 211b
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; Checks wCurrentMapTriggerPointer. If it's empty, returns -1 in a. Otherwise, returns the active trigger ID in a.
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push hl
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ld hl, wCurrentMapTriggerPointer
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ld a, [hli]
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ld h, [hl]
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ld l, a
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or h
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ld a, [hl]
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jr nz, .triggerexists
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ld a, -1
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.triggerexists
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pop hl
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ret
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; 212a
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GetCurrentMapTrigger:: ; 212a
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; Grabs the wram map trigger pointer for the current map and loads it into wCurrentMapTriggerPointer.
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; If there are no triggers, both bytes of wCurrentMapTriggerPointer are wiped clean.
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; Copy the current map group and number into bc. This is needed for GetMapTrigger.
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ld a, [MapGroup]
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ld b, a
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ld a, [MapNumber]
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ld c, a
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; Blank out wCurrentMapTriggerPointer; this is the default scenario.
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xor a
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ld [wCurrentMapTriggerPointer], a
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ld [wCurrentMapTriggerPointer + 1], a
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call GetMapTrigger
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ret c ; The map is not in the trigger table
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; Load the trigger table pointer from de into wCurrentMapTriggerPointer
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ld a, e
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ld [wCurrentMapTriggerPointer], a
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ld a, d
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ld [wCurrentMapTriggerPointer + 1], a
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xor a
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ret
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; 2147
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GetMapTrigger:: ; 2147
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; Searches the trigger table for the map group and number loaded in bc, and returns the wram pointer in de.
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; If the map is not in the trigger table, returns carry.
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push bc
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ld a, [hROMBank]
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push af
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ld a, BANK(MapTriggers)
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rst Bankswitch
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ld hl, MapTriggers
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.loop
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push hl
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ld a, [hli] ; map group, or terminator
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cp -1
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jr z, .end ; the current map is not in the trigger table
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cp b
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jr nz, .next ; map group did not match
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ld a, [hli] ; map number
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cp c
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jr nz, .next ; map number did not match
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jr .found ; we found our map
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.next
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pop hl
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ld de, 4 ; size of an entry in the trigger table
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add hl, de
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jr .loop
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.end
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scf
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jr .done
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.found
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ld e, [hl]
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inc hl
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ld d, [hl]
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.done
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pop hl
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pop bc
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ld a, b
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rst Bankswitch
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pop bc
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ret
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; 2173
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OverworldTextModeSwitch:: ; 2173
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call LoadMapPart
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call FarCallSwapTextboxPalettes
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ret
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; 217a
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LoadMapPart:: ; 217a
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ld a, [hROMBank]
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push af
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ld a, [TilesetBlocksBank]
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rst Bankswitch
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call LoadMetatiles
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ld a, $60
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hlcoord 0, 0
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ld bc, SCREEN_WIDTH * SCREEN_HEIGHT
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call ByteFill
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ld a, BANK(Function4d15b)
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rst Bankswitch
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call Function4d15b
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pop af
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rst Bankswitch
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ret
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; 2198
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LoadMetatiles:: ; 2198
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; de <- wd194
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ld a, [wd194]
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ld e, a
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ld a, [wd194 + 1]
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ld d, a
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ld hl, wMisc
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ld b, 5 ; SCREEN_WIDTH / 4
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.loop
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push de
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push hl
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ld c, 6 ; SCREEN_HEIGHT / 3
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.loop2
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push de
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push hl
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ld a, [de]
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and a
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jr nz, .ok
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ld a, [MapBorderBlock]
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.ok
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ld e, l
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ld d, h
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; double a, load hl <- a, multiply hl by 8
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add a
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ld l, a
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ld h, 0
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rept 3
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add hl,hl
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endr
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; hl <- hl + [TilesetBlocksAddress]
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ld a, [TilesetBlocksAddress]
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add l
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ld l, a
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ld a, [TilesetBlocksAddress + 1]
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adc h
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ld h, a
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rept 3
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; copy 4 bytes from hl to de
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rept 4
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ld a, [hli]
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ld [de], a
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inc de
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endr
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; next row
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ld a, e
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add SCREEN_WIDTH
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ld e, a
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jr nc, .next\@
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inc d
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.next\@
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endr
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; copy 4 more bytes from hl to de
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rept 4
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ld a, [hli]
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ld [de], a
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inc de
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endr
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pop hl
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ld de, 4
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add hl, de
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pop de
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inc de
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dec c
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jp nz, .loop2
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pop hl
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ld de, $60
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add hl, de
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pop de
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ld a, [MapWidth]
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add 6
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add e
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ld e, a
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jr nc, .ok2
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inc d
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.ok2
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dec b
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jp nz, .loop
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ret
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; 222a
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ReturnToMapFromSubmenu:: ; 222a
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ld a, MAPSETUP_SUBMENU
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ld [hMapEntryMethod], a
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callba RunMapSetupScript
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xor a
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ld [hMapEntryMethod], a
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ret
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; 2238
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CheckWarpTile:: ; 2238
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call GetDestinationWarpNumber
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ret nc
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push bc
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callba Function149af
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pop bc
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ret nc
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call CopyWarpData
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scf
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ret
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; 224a
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WarpCheck:: ; 224a
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call GetDestinationWarpNumber
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ret nc
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call CopyWarpData
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ret
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; 2252
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GetDestinationWarpNumber:: ; 2252
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callba Function1499a
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ret nc
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ld a, [hROMBank]
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push af
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call SwitchToMapScriptHeaderBank
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call .GetDestinationWarpNumber
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pop de
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ld a, d
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rst Bankswitch
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ret
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; 2266
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.GetDestinationWarpNumber ; 2266
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ld a, [PlayerNextMapY]
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sub $4
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ld e, a
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ld a, [PlayerNextMapX]
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sub $4
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ld d, a
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ld a, [wCurrMapWarpCount]
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and a
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ret z
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ld c, a
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ld hl, wCurrMapWarpHeaderPointer
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ld a, [hli]
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ld h, [hl]
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ld l, a
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.loop
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push hl
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ld a, [hli]
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cp e
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jr nz, .next
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ld a, [hli]
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cp d
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jr nz, .next
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jr .found_warp
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.next
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pop hl
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ld a, 5
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add l
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ld l, a
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jr nc, .okay
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inc h
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.okay
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dec c
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jr nz, .loop
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xor a
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ret
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.found_warp
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pop hl
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call .IncreaseHLTwice
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ret nc ; never encountered
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ld a, [wCurrMapWarpCount]
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inc a
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sub c
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ld c, a
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scf
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ret
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.IncreaseHLTwice
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rept 2
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inc hl
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endr
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scf
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ret
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; 22a7
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CopyWarpData:: ; 22a7
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ld a, [hROMBank]
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push af
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call SwitchToMapScriptHeaderBank
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call .CopyWarpData
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pop af
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rst Bankswitch
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scf
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ret
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; 22b4
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.CopyWarpData ; 22b4
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push bc
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ld hl, wCurrMapWarpHeaderPointer
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ld a, [hli]
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ld h, [hl]
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ld l, a
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ld a, c
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dec a
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ld bc, 5 ; warp size
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call AddNTimes
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ld bc, 2 ; warp number
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add hl, bc
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ld a, [hli]
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cp $ff
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jr nz, .skip
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ld hl, BackupWarpNumber
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ld a, [hli]
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.skip
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pop bc
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ld [wNextWarp], a
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ld a, [hli]
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ld [wNextMapGroup], a
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ld a, [hli]
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ld [wNextMapNumber], a
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ld a, c
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ld [wPrevWarp], a
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ld a, [MapGroup]
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ld [wPrevMapGroup], a
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ld a, [MapNumber]
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ld [wPrevMapNumber], a
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scf
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ret
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; 22ee
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CheckOutdoorMap:: ; 22ee
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cp ROUTE
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ret z
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cp TOWN
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ret
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; 22f4
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CheckIndoorMap:: ; 22f4
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cp INDOOR
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ret z
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cp CAVE
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ret z
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cp DUNGEON
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ret z
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cp GATE
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ret
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; 2300
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Function2300:: ; unreferenced
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cp INDOOR
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ret z
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cp GATE
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ret z
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cp PERM_5
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ret
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; 2309
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LoadMapAttributes:: ; 2309
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call CopyMapHeaders
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call SwitchToMapScriptHeaderBank
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call ReadMapScripts
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xor a
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call ReadMapEventHeader
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ret
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; 2317
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LoadMapAttributes_SkipPeople:: ; 2317
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call CopyMapHeaders
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call SwitchToMapScriptHeaderBank
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call ReadMapScripts
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ld a, $1
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call ReadMapEventHeader
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ret
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; 2326
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CopyMapHeaders:: ; 2326
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call PartiallyCopyMapHeader
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call SwitchToMapBank
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call GetSecondaryMapHeaderPointer
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call CopySecondMapHeader
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call GetMapConnections
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ret
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; 2336
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ReadMapEventHeader:: ; 2336
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push af
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ld hl, MapEventHeaderPointer
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ld a, [hli]
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ld h, [hl]
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ld l, a
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rept 2
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inc hl
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endr
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call ReadWarps
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call ReadCoordEvents
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call ReadSignposts
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pop af
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and a
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ret nz
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call ReadObjectEvents
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ret
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; 234f
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ReadMapScripts:: ; 234f
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ld hl, MapScriptHeaderPointer
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ld a, [hli]
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ld h, [hl]
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ld l, a
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call ReadMapTriggers
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call ReadMapCallbacks
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ret
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; 235c
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CopySecondMapHeader:: ; 235c
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ld de, MapHeader
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ld c, 12 ; size of the second map header
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.loop
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ld a, [hli]
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ld [de], a
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inc de
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dec c
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jr nz, .loop
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ret
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; 2368
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GetMapConnections:: ; 2368
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ld a, $ff
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ld [NorthConnectedMapGroup], a
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ld [SouthConnectedMapGroup], a
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ld [WestConnectedMapGroup], a
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ld [EastConnectedMapGroup], a
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ld a, [MapConnections]
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ld b, a
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bit NORTH_F, b
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jr z, .no_north
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ld de, NorthMapConnection
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call GetMapConnection
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.no_north
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bit SOUTH_F, b
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jr z, .no_south
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ld de, SouthMapConnection
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call GetMapConnection
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.no_south
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bit WEST_F, b
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jr z, .no_west
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ld de, WestMapConnection
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call GetMapConnection
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.no_west
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bit EAST_F, b
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jr z, .no_east
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ld de, EastMapConnection
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call GetMapConnection
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.no_east
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ret
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; 23a3
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GetMapConnection:: ; 23a3
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; Load map connection struct at hl into de.
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ld c, SouthMapConnection - NorthMapConnection
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.loop
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ld a, [hli]
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ld [de], a
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inc de
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dec c
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jr nz, .loop
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ret
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; 23ac
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ReadMapTriggers:: ; 23ac
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ld a, [hli] ; trigger count
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ld c, a
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ld [wCurrMapTriggerCount], a ; current map trigger count
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ld a, l
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ld [wCurrMapTriggerHeaderPointer], a ; map trigger pointer
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ld a, h
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ld [wdc09], a
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ld a, c
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and a
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ret z
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ld bc, 4 ; size of a map trigger header entry
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call AddNTimes
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ret
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; 23c3
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ReadMapCallbacks:: ; 23c3
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ld a, [hli]
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ld c, a
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ld [wCurrMapCallbackCount], a
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ld a, l
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ld [wCurrMapCallbackHeaderPointer], a
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ld a, h
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ld [wCurrMapCallbackHeaderPointer + 1], a
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ld a, c
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and a
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ret z
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ld bc, 3
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call AddNTimes
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ret
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; 23da
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ReadWarps:: ; 23da
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ld a, [hli]
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ld c, a
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ld [wCurrMapWarpCount], a
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ld a, l
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ld [wCurrMapWarpHeaderPointer], a
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ld a, h
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ld [wdbfd], a
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ld a, c
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and a
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ret z
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ld bc, $0005
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call AddNTimes
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ret
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; 23f1
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ReadCoordEvents:: ; 23f1
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ld a, [hli]
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ld c, a
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ld [wCurrentNextMapXYTriggerCount], a
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ld a, l
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ld [wCurrentNextMapXYTriggerHeaderPointer], a
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ld a, h
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ld [wCurrentNextMapXYTriggerHeaderPointer + 1], a
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ld a, c
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and a
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ret z
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ld bc, 8
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call AddNTimes
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ret
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; 2408
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ReadSignposts:: ; 2408
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ld a, [hli]
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ld c, a
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ld [wCurrentMapSignpostCount], a
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ld a, l
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ld [wCurrentMapSignpostHeaderPointer], a
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ld a, h
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ld [wCurrentMapSignpostHeaderPointer + 1], a
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ld a, c
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and a
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ret z
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ld bc, 5
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call AddNTimes
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ret
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; 241f
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ReadObjectEvents:: ; 241f
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push hl
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call ClearObjectStructs
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pop de
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ld hl, Map1Object
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ld a, [de]
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inc de
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ld [wCurrentMapPersonEventCount], a
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ld a, e
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ld [wCurrentMapPersonEventHeaderPointer], a
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ld a, d
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ld [wCurrentMapPersonEventHeaderPointer + 1], a
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ld a, [wCurrentMapPersonEventCount]
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call CopyMapObjectHeaders
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; get NUM_OBJECTS - [wCurrentMapPersonEventCount]
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ld a, [wCurrentMapPersonEventCount]
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ld c, a
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ld a, NUM_OBJECTS ; - 1
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sub c
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jr z, .skip
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; jr c, .skip
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; stupid waste of time and space
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ld bc, 1
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add hl, bc
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; Fill the remaining sprite IDs and y coords with 0 and -1, respectively.
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; Bleeds into wObjectMasks due to a bug. Uncomment the above subtraction
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; to fix.
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ld bc, OBJECT_LENGTH
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.loop
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ld [hl], 0
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inc hl
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ld [hl], -1
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dec hl
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add hl, bc
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dec a
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jr nz, .loop
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.skip
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ld h, d
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ld l, e
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ret
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; 2457
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CopyMapObjectHeaders:: ; 2457
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and a
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ret z
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ld c, a
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.loop
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push bc
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push hl
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ld a, $ff
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ld [hli], a
|
|
ld b, MAPOBJECT_E - MAPOBJECT_SPRITE
|
|
.loop2
|
|
ld a, [de]
|
|
inc de
|
|
ld [hli], a
|
|
dec b
|
|
jr nz, .loop2
|
|
|
|
pop hl
|
|
ld bc, OBJECT_LENGTH
|
|
add hl, bc
|
|
pop bc
|
|
dec c
|
|
jr nz, .loop
|
|
ret
|
|
; 2471
|
|
|
|
ClearObjectStructs:: ; 2471
|
|
ld hl, Object1Struct
|
|
ld bc, OBJECT_STRUCT_LENGTH * (NUM_OBJECT_STRUCTS - 1)
|
|
xor a
|
|
call ByteFill
|
|
|
|
; Just to make sure (this is rather pointless)
|
|
ld hl, Object1Struct
|
|
ld de, OBJECT_STRUCT_LENGTH
|
|
ld c, NUM_OBJECT_STRUCTS - 1
|
|
xor a
|
|
.loop
|
|
ld [hl], a
|
|
add hl, de
|
|
dec c
|
|
jr nz, .loop
|
|
ret
|
|
; 248a
|
|
|
|
RestoreFacingAfterWarp:: ; 248a
|
|
call GetMapScriptHeaderBank
|
|
rst Bankswitch
|
|
|
|
ld hl, MapEventHeaderPointer
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
rept 3
|
|
inc hl ; get to the warp coords
|
|
endr
|
|
ld a, [WarpNumber]
|
|
dec a
|
|
ld c, a
|
|
ld b, 0
|
|
ld a, 5
|
|
call AddNTimes
|
|
ld a, [hli]
|
|
ld [YCoord], a
|
|
ld a, [hli]
|
|
ld [XCoord], a
|
|
; destination warp number
|
|
ld a, [hli]
|
|
cp $ff
|
|
jr nz, .skip
|
|
call .backup
|
|
|
|
.skip
|
|
callba GetCoordOfUpperLeftCorner
|
|
ret
|
|
; 24ba
|
|
|
|
.backup
|
|
ld a, [wPrevWarp]
|
|
ld [BackupWarpNumber], a
|
|
ld a, [wPrevMapGroup]
|
|
ld [BackupMapGroup], a
|
|
ld a, [wPrevMapNumber]
|
|
ld [BackupMapNumber], a
|
|
ret
|
|
; 24cd
|
|
|
|
LoadBlockData:: ; 24cd
|
|
ld hl, OverworldMap
|
|
ld bc, OverworldMapEnd - OverworldMap
|
|
ld a, 0
|
|
call ByteFill
|
|
call ChangeMap
|
|
call FillMapConnections
|
|
ld a, $1
|
|
call RunMapCallback
|
|
ret
|
|
; 24e4
|
|
|
|
|
|
|
|
ChangeMap:: ; 24e4
|
|
ld a, [hROMBank]
|
|
push af
|
|
|
|
ld hl, OverworldMap
|
|
ld a, [MapWidth]
|
|
ld [hConnectedMapWidth], a
|
|
add $6
|
|
ld [hConnectionStripLength], a
|
|
ld c, a
|
|
ld b, 0
|
|
rept 3
|
|
add hl, bc
|
|
endr
|
|
ld c, 3
|
|
add hl, bc
|
|
ld a, [MapBlockDataBank]
|
|
rst Bankswitch
|
|
|
|
ld a, [MapBlockDataPointer]
|
|
ld e, a
|
|
ld a, [MapBlockDataPointer+1]
|
|
ld d, a
|
|
ld a, [MapHeight]
|
|
ld b, a
|
|
.asm_250c
|
|
push hl
|
|
ld a, [hConnectedMapWidth]
|
|
ld c, a
|
|
.asm_2510
|
|
ld a, [de]
|
|
inc de
|
|
ld [hli], a
|
|
dec c
|
|
jr nz, .asm_2510
|
|
pop hl
|
|
ld a, [hConnectionStripLength]
|
|
add l
|
|
ld l, a
|
|
jr nc, .asm_251e
|
|
inc h
|
|
.asm_251e
|
|
dec b
|
|
jr nz, .asm_250c
|
|
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
; 2524
|
|
|
|
|
|
|
|
FillMapConnections:: ; 2524
|
|
|
|
; North
|
|
ld a, [NorthConnectedMapGroup]
|
|
cp $ff
|
|
jr z, .South
|
|
ld b, a
|
|
ld a, [NorthConnectedMapNumber]
|
|
ld c, a
|
|
call GetAnyMapBlockdataBank
|
|
|
|
ld a, [NorthConnectionStripPointer]
|
|
ld l, a
|
|
ld a, [NorthConnectionStripPointer + 1]
|
|
ld h, a
|
|
ld a, [NorthConnectionStripLocation]
|
|
ld e, a
|
|
ld a, [NorthConnectionStripLocation + 1]
|
|
ld d, a
|
|
ld a, [NorthConnectionStripLength]
|
|
ld [hConnectionStripLength], a
|
|
ld a, [NorthConnectedMapWidth]
|
|
ld [hConnectedMapWidth], a
|
|
call FillNorthConnectionStrip
|
|
|
|
.South
|
|
ld a, [SouthConnectedMapGroup]
|
|
cp $ff
|
|
jr z, .West
|
|
ld b, a
|
|
ld a, [SouthConnectedMapNumber]
|
|
ld c, a
|
|
call GetAnyMapBlockdataBank
|
|
|
|
ld a, [SouthConnectionStripPointer]
|
|
ld l, a
|
|
ld a, [SouthConnectionStripPointer + 1]
|
|
ld h, a
|
|
ld a, [SouthConnectionStripLocation]
|
|
ld e, a
|
|
ld a, [SouthConnectionStripLocation + 1]
|
|
ld d, a
|
|
ld a, [SouthConnectionStripLength]
|
|
ld [hConnectionStripLength], a
|
|
ld a, [SouthConnectedMapWidth]
|
|
ld [hConnectedMapWidth], a
|
|
call FillSouthConnectionStrip
|
|
|
|
.West
|
|
ld a, [WestConnectedMapGroup]
|
|
cp $ff
|
|
jr z, .East
|
|
ld b, a
|
|
ld a, [WestConnectedMapNumber]
|
|
ld c, a
|
|
call GetAnyMapBlockdataBank
|
|
|
|
ld a, [WestConnectionStripPointer]
|
|
ld l, a
|
|
ld a, [WestConnectionStripPointer + 1]
|
|
ld h, a
|
|
ld a, [WestConnectionStripLocation]
|
|
ld e, a
|
|
ld a, [WestConnectionStripLocation + 1]
|
|
ld d, a
|
|
ld a, [WestConnectionStripLength]
|
|
ld b, a
|
|
ld a, [WestConnectedMapWidth]
|
|
ld [hConnectionStripLength], a
|
|
call FillWestConnectionStrip
|
|
|
|
.East
|
|
ld a, [EastConnectedMapGroup]
|
|
cp $ff
|
|
jr z, .Done
|
|
ld b, a
|
|
ld a, [EastConnectedMapNumber]
|
|
ld c, a
|
|
call GetAnyMapBlockdataBank
|
|
|
|
ld a, [EastConnectionStripPointer]
|
|
ld l, a
|
|
ld a, [EastConnectionStripPointer + 1]
|
|
ld h, a
|
|
ld a, [EastConnectionStripLocation]
|
|
ld e, a
|
|
ld a, [EastConnectionStripLocation + 1]
|
|
ld d, a
|
|
ld a, [EastConnectionStripLength]
|
|
ld b, a
|
|
ld a, [EastConnectedMapWidth]
|
|
ld [hConnectionStripLength], a
|
|
call FillEastConnectionStrip
|
|
|
|
.Done
|
|
ret
|
|
; 25d3
|
|
|
|
|
|
FillNorthConnectionStrip::
|
|
FillSouthConnectionStrip:: ; 25d3
|
|
|
|
ld c, 3
|
|
.y
|
|
push de
|
|
|
|
push hl
|
|
ld a, [hConnectionStripLength]
|
|
ld b, a
|
|
.x
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
dec b
|
|
jr nz, .x
|
|
pop hl
|
|
|
|
ld a, [hConnectedMapWidth]
|
|
ld e, a
|
|
ld d, 0
|
|
add hl, de
|
|
pop de
|
|
|
|
ld a, [MapWidth]
|
|
add 6
|
|
add e
|
|
ld e, a
|
|
jr nc, .asm_25f2
|
|
inc d
|
|
.asm_25f2
|
|
dec c
|
|
jr nz, .y
|
|
ret
|
|
; 25f6
|
|
|
|
|
|
FillWestConnectionStrip::
|
|
FillEastConnectionStrip:: ; 25f6
|
|
|
|
.asm_25f6
|
|
ld a, [MapWidth]
|
|
add 6
|
|
ld [hConnectedMapWidth], a
|
|
|
|
push de
|
|
|
|
push hl
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
pop hl
|
|
|
|
ld a, [hConnectionStripLength]
|
|
ld e, a
|
|
ld d, 0
|
|
add hl, de
|
|
pop de
|
|
|
|
ld a, [hConnectedMapWidth]
|
|
add e
|
|
ld e, a
|
|
jr nc, .asm_2617
|
|
inc d
|
|
.asm_2617
|
|
dec b
|
|
jr nz, .asm_25f6
|
|
ret
|
|
; 261b
|
|
|
|
LoadMapStatus:: ; 261b
|
|
ld [MapStatus], a
|
|
ret
|
|
; 261f
|
|
|
|
|
|
CallScript:: ; 261f
|
|
; Call a script at a:hl.
|
|
|
|
ld [ScriptBank], a
|
|
ld a, l
|
|
ld [ScriptPos], a
|
|
ld a, h
|
|
ld [ScriptPos + 1], a
|
|
|
|
ld a, PLAYEREVENT_MAPSCRIPT
|
|
ld [ScriptRunning], a
|
|
|
|
scf
|
|
ret
|
|
; 2631
|
|
|
|
CallMapScript:: ; 2631
|
|
; Call a script at hl in the current bank if there isn't already a script running
|
|
ld a, [ScriptRunning]
|
|
and a
|
|
ret nz
|
|
call GetMapScriptHeaderBank
|
|
jr CallScript
|
|
; 263b
|
|
|
|
RunMapCallback:: ; 263b
|
|
; Will run the first callback found in the map header with execution index equal to a.
|
|
ld b, a
|
|
ld a, [hROMBank]
|
|
push af
|
|
call SwitchToMapScriptHeaderBank
|
|
call .FindCallback
|
|
jr nc, .done
|
|
|
|
call GetMapScriptHeaderBank
|
|
ld b, a
|
|
ld d, h
|
|
ld e, l
|
|
call ExecuteCallbackScript
|
|
|
|
.done
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
; 2653
|
|
|
|
.FindCallback: ; 2653
|
|
ld a, [wCurrMapCallbackCount]
|
|
ld c, a
|
|
and a
|
|
ret z
|
|
ld hl, wCurrMapCallbackHeaderPointer
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
or h
|
|
ret z
|
|
ld de, 3
|
|
.loop
|
|
ld a, [hl]
|
|
cp b
|
|
jr z, .found
|
|
add hl, de
|
|
dec c
|
|
jr nz, .loop
|
|
xor a
|
|
ret
|
|
|
|
.found
|
|
inc hl
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
scf
|
|
ret
|
|
; 2674
|
|
|
|
ExecuteCallbackScript:: ; 2674
|
|
; Do map callback de and return to script bank b.
|
|
callba CallCallback
|
|
ld a, [ScriptMode]
|
|
push af
|
|
ld hl, ScriptFlags
|
|
ld a, [hl]
|
|
push af
|
|
set 1, [hl]
|
|
callba EnableScriptMode
|
|
callba ScriptEvents
|
|
pop af
|
|
ld [ScriptFlags], a
|
|
pop af
|
|
ld [ScriptMode], a
|
|
ret
|
|
; 269a
|
|
|
|
MapTextbox:: ; 269a
|
|
ld a, [hROMBank]
|
|
push af
|
|
|
|
ld a, b
|
|
rst Bankswitch
|
|
|
|
push hl
|
|
call SpeechTextBox
|
|
call Function2e31
|
|
ld a, 1
|
|
ld [hOAMUpdate], a
|
|
call ApplyTilemap
|
|
pop hl
|
|
call PrintTextBoxText
|
|
xor a
|
|
ld [hOAMUpdate], a
|
|
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
; 26b7
|
|
|
|
Call_a_de:: ; 26b7
|
|
; Call a:de.
|
|
|
|
ld [hBuffer], a
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, [hBuffer]
|
|
rst Bankswitch
|
|
|
|
call .de
|
|
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
|
|
.de
|
|
push de
|
|
ret
|
|
; 26c7
|
|
|
|
GetMovementData:: ; 26c7
|
|
; Initialize the movement data for person c at b:hl
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, b
|
|
rst Bankswitch
|
|
|
|
ld a, c
|
|
call LoadMovementDataPointer
|
|
|
|
pop hl
|
|
ld a, h
|
|
rst Bankswitch
|
|
ret
|
|
; 26d4
|
|
|
|
|
|
GetScriptByte:: ; 0x26d4
|
|
; Return byte at ScriptBank:ScriptPos in a.
|
|
|
|
push hl
|
|
push bc
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, [ScriptBank]
|
|
rst Bankswitch
|
|
|
|
ld hl, ScriptPos
|
|
ld c, [hl]
|
|
inc hl
|
|
ld b, [hl]
|
|
|
|
ld a, [bc]
|
|
|
|
inc bc
|
|
ld [hl], b
|
|
dec hl
|
|
ld [hl], c
|
|
|
|
ld b, a
|
|
pop af
|
|
rst Bankswitch
|
|
ld a, b
|
|
pop bc
|
|
pop hl
|
|
ret
|
|
; 0x26ef
|
|
|
|
|
|
ObjectEvent:: ; 0x26ef
|
|
jumptextfaceplayer ObjectEventText
|
|
; 0x26f2
|
|
|
|
ObjectEventText::
|
|
text_jump _ObjectEventText
|
|
db "@"
|
|
; 0x26f7
|
|
|
|
|
|
BGEvent:: ; 26f7
|
|
jumptext BGEventText
|
|
; 26fa
|
|
|
|
BGEventText:: ; 26fa
|
|
text_jump UnknownText_0x1c46fc
|
|
db "@"
|
|
; 26ff
|
|
|
|
|
|
CoordinatesEvent:: ; 26ff
|
|
jumptext CoordinatesEventText
|
|
; 2702
|
|
|
|
CoordinatesEventText:: ; 2702
|
|
text_jump UnknownText_0x1c4706
|
|
db "@"
|
|
; 2707
|
|
|
|
|
|
CheckObjectMask:: ; 2707
|
|
ld a, [hMapObjectIndexBuffer]
|
|
ld e, a
|
|
ld d, $0
|
|
ld hl, wObjectMasks
|
|
add hl, de
|
|
ld a, [hl]
|
|
ret
|
|
; 2712
|
|
|
|
MaskObject:: ; 2712
|
|
ld a, [hMapObjectIndexBuffer]
|
|
ld e, a
|
|
ld d, $0
|
|
ld hl, wObjectMasks
|
|
add hl, de
|
|
ld [hl], -1 ; ,masked
|
|
ret
|
|
; 271e
|
|
|
|
UnmaskObject:: ; 271e
|
|
ld a, [hMapObjectIndexBuffer]
|
|
ld e, a
|
|
ld d, $0
|
|
ld hl, wObjectMasks
|
|
add hl, de
|
|
ld [hl], 0 ; unmasked
|
|
ret
|
|
; 272a
|
|
|
|
|
|
ScrollMapDown:: ; 272a
|
|
hlcoord 0, 0
|
|
ld de, BGMapBuffer
|
|
call BackupBGMapRow
|
|
ld c, 2 * SCREEN_WIDTH
|
|
call FarCallScrollBGMapPalettes
|
|
ld a, [wBGMapAnchor]
|
|
ld e, a
|
|
ld a, [wBGMapAnchor + 1]
|
|
ld d, a
|
|
call UpdateBGMapRow
|
|
ld a, $1
|
|
ld [hBGMapUpdate], a
|
|
ret
|
|
; 2748
|
|
|
|
ScrollMapUp:: ; 2748
|
|
hlcoord 0, SCREEN_HEIGHT - 2
|
|
ld de, BGMapBuffer
|
|
call BackupBGMapRow
|
|
ld c, 2 * SCREEN_WIDTH
|
|
call FarCallScrollBGMapPalettes
|
|
ld a, [wBGMapAnchor]
|
|
ld l, a
|
|
ld a, [wBGMapAnchor + 1]
|
|
ld h, a
|
|
ld bc, $0200
|
|
add hl, bc
|
|
; cap d at VBGMap1 / $100
|
|
ld a, h
|
|
and %00000011
|
|
or VBGMap0 / $100
|
|
ld e, l
|
|
ld d, a
|
|
call UpdateBGMapRow
|
|
ld a, $1
|
|
ld [hBGMapUpdate], a
|
|
ret
|
|
; 2771
|
|
|
|
ScrollMapLeft:: ; 2771
|
|
hlcoord 0, 0
|
|
ld de, BGMapBuffer
|
|
call BackupBGMapColumn
|
|
ld c, 2 * SCREEN_HEIGHT
|
|
call FarCallScrollBGMapPalettes
|
|
ld a, [wBGMapAnchor]
|
|
ld e, a
|
|
ld a, [wBGMapAnchor + 1]
|
|
ld d, a
|
|
call UpdateBGMapColumn
|
|
ld a, $1
|
|
ld [hBGMapUpdate], a
|
|
ret
|
|
; 278f
|
|
|
|
ScrollMapRight:: ; 278f
|
|
hlcoord SCREEN_WIDTH - 2, 0
|
|
ld de, BGMapBuffer
|
|
call BackupBGMapColumn
|
|
ld c, 2 * SCREEN_HEIGHT
|
|
call FarCallScrollBGMapPalettes
|
|
ld a, [wBGMapAnchor]
|
|
ld e, a
|
|
and %11100000
|
|
ld b, a
|
|
ld a, e
|
|
add SCREEN_HEIGHT
|
|
and %00011111
|
|
or b
|
|
ld e, a
|
|
ld a, [wBGMapAnchor + 1]
|
|
ld d, a
|
|
call UpdateBGMapColumn
|
|
ld a, $1
|
|
ld [hBGMapUpdate], a
|
|
ret
|
|
; 27b7
|
|
|
|
BackupBGMapRow:: ; 27b7
|
|
ld c, 2 * SCREEN_WIDTH
|
|
.loop
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
dec c
|
|
jr nz, .loop
|
|
ret
|
|
; 27c0
|
|
|
|
BackupBGMapColumn:: ; 27c0
|
|
ld c, SCREEN_HEIGHT
|
|
.loop
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
ld a, [hl]
|
|
ld [de], a
|
|
inc de
|
|
ld a, SCREEN_WIDTH - 1
|
|
add l
|
|
ld l, a
|
|
jr nc, .skip
|
|
inc h
|
|
|
|
.skip
|
|
dec c
|
|
jr nz, .loop
|
|
ret
|
|
; 27d3
|
|
|
|
UpdateBGMapRow:: ; 27d3
|
|
ld hl, BGMapBufferPtrs
|
|
push de
|
|
call .iteration
|
|
pop de
|
|
ld a, $20
|
|
add e
|
|
ld e, a
|
|
|
|
.iteration
|
|
ld c, 10
|
|
.loop
|
|
ld a, e
|
|
ld [hli], a
|
|
ld a, d
|
|
ld [hli], a
|
|
ld a, e
|
|
rept 2
|
|
inc a
|
|
endr
|
|
and $1f
|
|
ld b, a
|
|
ld a, e
|
|
and $e0
|
|
or b
|
|
ld e, a
|
|
dec c
|
|
jr nz, .loop
|
|
ld a, SCREEN_WIDTH
|
|
ld [hFFDC], a
|
|
ret
|
|
; 27f8
|
|
|
|
UpdateBGMapColumn:: ; 27f8
|
|
ld hl, BGMapBufferPtrs
|
|
ld c, SCREEN_HEIGHT
|
|
.loop
|
|
ld a, e
|
|
ld [hli], a
|
|
ld a, d
|
|
ld [hli], a
|
|
ld a, $20
|
|
add e
|
|
ld e, a
|
|
jr nc, .skip
|
|
inc d
|
|
; cap d at VBGMap1 / $100
|
|
ld a, d
|
|
and $3
|
|
or VBGMap0 / $100
|
|
ld d, a
|
|
|
|
.skip
|
|
dec c
|
|
jr nz, .loop
|
|
ld a, SCREEN_HEIGHT
|
|
ld [hFFDC], a
|
|
ret
|
|
; 2816
|
|
|
|
; unreferenced
|
|
ld hl, BGMapBuffer
|
|
ld bc, SGBPredef - BGMapBuffer
|
|
xor a
|
|
call ByteFill
|
|
ret
|
|
; 2821
|
|
|
|
LoadTileset:: ; 2821
|
|
ld hl, TilesetAddress
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
ld a, [TilesetBank]
|
|
ld e, a
|
|
|
|
ld a, [rSVBK]
|
|
push af
|
|
ld a, $6
|
|
ld [rSVBK], a
|
|
|
|
ld a, e
|
|
ld de, w6_d000
|
|
call FarDecompress
|
|
|
|
ld hl, w6_d000
|
|
ld de, VTiles2
|
|
ld bc, $60 tiles
|
|
call CopyBytes
|
|
|
|
ld a, [rVBK]
|
|
push af
|
|
ld a, $1
|
|
ld [rVBK], a
|
|
|
|
ld hl, w6_d600
|
|
ld de, VTiles2
|
|
ld bc, $60 tiles
|
|
call CopyBytes
|
|
|
|
pop af
|
|
ld [rVBK], a
|
|
|
|
pop af
|
|
ld [rSVBK], a
|
|
|
|
ld a, [wTileset]
|
|
cp TILESET_JOHTO_1
|
|
jr z, .load_roof
|
|
cp TILESET_JOHTO_2
|
|
jr z, .load_roof
|
|
cp TILESET_BATTLE_TOWER_OUTSIDE
|
|
jr z, .load_roof
|
|
jr .skip_roof
|
|
|
|
.load_roof
|
|
callba LoadMapGroupRoof
|
|
|
|
.skip_roof
|
|
xor a
|
|
ld [hTileAnimFrame], a
|
|
ret
|
|
; 2879
|
|
|
|
BufferScreen:: ; 2879
|
|
ld hl, wd194
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
ld de, XCoord + 1
|
|
ld c, $5
|
|
ld b, $6
|
|
.asm_2886
|
|
push bc
|
|
push hl
|
|
.asm_2888
|
|
ld a, [hli]
|
|
ld [de], a
|
|
inc de
|
|
dec b
|
|
jr nz, .asm_2888
|
|
pop hl
|
|
ld a, [MapWidth]
|
|
add $6
|
|
ld c, a
|
|
ld b, $0
|
|
add hl, bc
|
|
pop bc
|
|
dec c
|
|
jr nz, .asm_2886
|
|
ret
|
|
; 289d
|
|
|
|
SaveScreen:: ; 289d
|
|
ld hl, wd194
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
ld de, XCoord + 1
|
|
ld a, [MapWidth]
|
|
add $6
|
|
ld [hMapObjectIndexBuffer], a
|
|
ld a, [wPlayerStepDirection]
|
|
and a
|
|
jr z, .down
|
|
cp UP
|
|
jr z, .up
|
|
cp LEFT
|
|
jr z, .left
|
|
cp RIGHT
|
|
jr z, .right
|
|
ret
|
|
|
|
.up
|
|
ld de, wdcbf
|
|
ld a, [hMapObjectIndexBuffer]
|
|
ld c, a
|
|
ld b, $0
|
|
add hl, bc
|
|
jr .vertical
|
|
|
|
.down
|
|
ld de, XCoord + 1
|
|
|
|
.vertical
|
|
ld b, $6
|
|
ld c, $4
|
|
jr Function28f7
|
|
|
|
.left
|
|
ld de, XCoord + 2
|
|
inc hl
|
|
jr .horizontal
|
|
|
|
.right
|
|
ld de, XCoord + 1
|
|
|
|
.horizontal
|
|
ld b, $5
|
|
ld c, $5
|
|
jr Function28f7
|
|
|
|
|
|
LoadNeighboringBlockData:: ; 28e3
|
|
ld hl, wd194
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
ld a, [MapWidth]
|
|
add $6
|
|
ld [hConnectionStripLength], a
|
|
ld de, XCoord + 1
|
|
ld b, $6
|
|
ld c, $5
|
|
|
|
Function28f7:: ; 28f7
|
|
.loop1
|
|
push bc
|
|
push hl
|
|
push de
|
|
.loop2
|
|
ld a, [de]
|
|
inc de
|
|
ld [hli], a
|
|
dec b
|
|
jr nz, .loop2
|
|
pop de
|
|
ld a, e
|
|
add $6
|
|
ld e, a
|
|
jr nc, .okay
|
|
inc d
|
|
|
|
.okay
|
|
pop hl
|
|
ld a, [hConnectionStripLength]
|
|
ld c, a
|
|
ld b, $0
|
|
add hl, bc
|
|
pop bc
|
|
dec c
|
|
jr nz, .loop1
|
|
ret
|
|
; 2914
|
|
|
|
GetMovementPermissions:: ; 2914
|
|
xor a
|
|
ld [TilePermissions], a
|
|
call GetLeftRightCollision
|
|
call GetUpDownCollision
|
|
; get coords of current tile
|
|
ld a, [PlayerNextMapX]
|
|
ld d, a
|
|
ld a, [PlayerNextMapY]
|
|
ld e, a
|
|
call GetCoordTile
|
|
ld [PlayerNextTile], a
|
|
call Function29ff
|
|
ret nz
|
|
|
|
ld a, [PlayerNextTile]
|
|
and 7
|
|
ld hl, .data_2945
|
|
add l
|
|
ld l, a
|
|
ld a, 0
|
|
adc h
|
|
ld h, a
|
|
ld a, [hl]
|
|
ld hl, TilePermissions
|
|
or [hl]
|
|
ld [hl], a
|
|
ret
|
|
; 2945
|
|
|
|
.data_2945 ; 2945
|
|
db 1, 2, 4, 8, 9, 10, 5, 6
|
|
; 294d
|
|
|
|
GetUpDownCollision:: ; 294d
|
|
ld a, [PlayerNextMapX]
|
|
ld d, a
|
|
ld a, [PlayerNextMapY]
|
|
ld e, a
|
|
|
|
push de
|
|
inc e
|
|
call GetCoordTile
|
|
ld [TileDown], a
|
|
call Function298b
|
|
|
|
pop de
|
|
dec e
|
|
call GetCoordTile
|
|
ld [TileUp], a
|
|
call Function29a8
|
|
ret
|
|
; 296c
|
|
|
|
GetLeftRightCollision:: ; 296c
|
|
ld a, [PlayerNextMapX]
|
|
ld d, a
|
|
ld a, [PlayerNextMapY]
|
|
ld e, a
|
|
|
|
push de
|
|
dec d
|
|
call GetCoordTile
|
|
ld [TileLeft], a
|
|
call Function29e2
|
|
|
|
pop de
|
|
inc d
|
|
call GetCoordTile
|
|
ld [TileRight], a
|
|
call Function29c5
|
|
ret
|
|
; 298b
|
|
|
|
Function298b:: ; 298b
|
|
call Function29ff
|
|
ret nz
|
|
ld a, [TileDown]
|
|
and 7
|
|
cp $2
|
|
jr z, .ok
|
|
cp $6
|
|
jr z, .ok
|
|
cp $7
|
|
ret nz
|
|
|
|
.ok
|
|
ld a, [TilePermissions]
|
|
or FACE_DOWN
|
|
ld [TilePermissions], a
|
|
ret
|
|
; 29a8
|
|
|
|
Function29a8:: ; 29a8
|
|
call Function29ff
|
|
ret nz
|
|
ld a, [TileUp]
|
|
and 7
|
|
cp $3
|
|
jr z, .ok
|
|
cp $4
|
|
jr z, .ok
|
|
cp $5
|
|
ret nz
|
|
|
|
.ok
|
|
ld a, [TilePermissions]
|
|
or FACE_UP
|
|
ld [TilePermissions], a
|
|
ret
|
|
; 29c5
|
|
|
|
Function29c5:: ; 29c5
|
|
call Function29ff
|
|
ret nz
|
|
ld a, [TileRight]
|
|
and 7
|
|
cp $1
|
|
jr z, .ok
|
|
cp $5
|
|
jr z, .ok
|
|
cp $7
|
|
ret nz
|
|
|
|
.ok
|
|
ld a, [TilePermissions]
|
|
or FACE_RIGHT
|
|
ld [TilePermissions], a
|
|
ret
|
|
; 29e2
|
|
|
|
Function29e2:: ; 29e2
|
|
call Function29ff
|
|
ret nz
|
|
ld a, [TileLeft]
|
|
and 7
|
|
cp $0
|
|
jr z, .ok
|
|
cp $4
|
|
jr z, .ok
|
|
cp $6
|
|
ret nz
|
|
|
|
.ok
|
|
ld a, [TilePermissions]
|
|
or FACE_LEFT
|
|
ld [TilePermissions], a
|
|
ret
|
|
; 29ff
|
|
|
|
Function29ff:: ; 29ff
|
|
and $f0
|
|
cp $b0
|
|
ret z
|
|
cp $c0
|
|
ret
|
|
; 2a07
|
|
|
|
|
|
GetFacingTileCoord:: ; 2a07
|
|
; Return map coordinates in (d, e) and tile id in a
|
|
; of the tile the player is facing.
|
|
|
|
ld a, [PlayerDirection]
|
|
and %1100
|
|
srl a
|
|
srl a
|
|
ld l, a
|
|
ld h, 0
|
|
rept 2
|
|
add hl,hl
|
|
endr
|
|
ld de, .Directions
|
|
add hl, de
|
|
|
|
ld d, [hl]
|
|
inc hl
|
|
ld e, [hl]
|
|
inc hl
|
|
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
|
|
ld a, [PlayerNextMapX]
|
|
add d
|
|
ld d, a
|
|
ld a, [PlayerNextMapY]
|
|
add e
|
|
ld e, a
|
|
ld a, [hl]
|
|
ret
|
|
|
|
.Directions
|
|
; x, y
|
|
db 0, 1
|
|
dw TileDown
|
|
db 0, -1
|
|
dw TileUp
|
|
db -1, 0
|
|
dw TileLeft
|
|
db 1, 0
|
|
dw TileRight
|
|
; 2a3c
|
|
|
|
|
|
GetCoordTile:: ; 2a3c
|
|
; Get the collision byte for tile d, e
|
|
call GetBlockLocation
|
|
ld a, [hl]
|
|
and a
|
|
jr z, .nope
|
|
ld l, a
|
|
ld h, $0
|
|
rept 2
|
|
add hl,hl
|
|
endr
|
|
ld a, [TilesetCollisionAddress]
|
|
ld c, a
|
|
ld a, [TilesetCollisionAddress + 1]
|
|
ld b, a
|
|
add hl, bc
|
|
rr d
|
|
jr nc, .nocarry
|
|
inc hl
|
|
|
|
.nocarry
|
|
rr e
|
|
jr nc, .nocarry2
|
|
rept 2
|
|
inc hl
|
|
endr
|
|
|
|
.nocarry2
|
|
ld a, [TilesetCollisionBank]
|
|
call GetFarByte
|
|
ret
|
|
|
|
.nope
|
|
ld a, -1
|
|
ret
|
|
; 2a66
|
|
|
|
GetBlockLocation:: ; 2a66
|
|
ld a, [MapWidth]
|
|
add 6
|
|
ld c, a
|
|
ld b, 0
|
|
ld hl, wc801
|
|
add hl, bc
|
|
ld a, e
|
|
srl a
|
|
jr z, .nope
|
|
and a
|
|
.loop
|
|
srl a
|
|
jr nc, .ok
|
|
add hl, bc
|
|
|
|
.ok
|
|
sla c
|
|
rl b
|
|
and a
|
|
jr nz, .loop
|
|
|
|
.nope
|
|
ld c, d
|
|
srl c
|
|
ld b, 0
|
|
add hl, bc
|
|
ret
|
|
; 2a8b
|
|
|
|
|
|
CheckFacingSign:: ; 2a8b
|
|
call GetFacingTileCoord
|
|
; Load facing into b.
|
|
ld b, a
|
|
; Convert the coordinates at de to within-boundaries coordinates.
|
|
ld a, d
|
|
sub 4
|
|
ld d, a
|
|
ld a, e
|
|
sub 4
|
|
ld e, a
|
|
; If there are no signposts, we don't need to be here.
|
|
ld a, [wCurrentMapSignpostCount]
|
|
and a
|
|
ret z
|
|
|
|
ld c, a
|
|
ld a, [hROMBank]
|
|
push af
|
|
call SwitchToMapScriptHeaderBank
|
|
call CheckIfFacingTileCoordIsSign
|
|
pop hl
|
|
ld a, h
|
|
rst Bankswitch
|
|
ret
|
|
; 2aaa
|
|
|
|
CheckIfFacingTileCoordIsSign:: ; 2aaa
|
|
; Checks to see if you are facing a signpost. If so, copies it into EngineBuffer1 and sets carry.
|
|
ld hl, wCurrentMapSignpostHeaderPointer
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
.loop
|
|
push hl
|
|
ld a, [hli]
|
|
cp e
|
|
jr nz, .next
|
|
ld a, [hli]
|
|
cp d
|
|
jr nz, .next
|
|
jr .copysign
|
|
|
|
.next
|
|
pop hl
|
|
ld a, 5 ; signpost event length
|
|
add l
|
|
ld l, a
|
|
jr nc, .nocarry
|
|
inc h
|
|
|
|
.nocarry
|
|
dec c
|
|
jr nz, .loop
|
|
xor a
|
|
ret
|
|
|
|
.copysign
|
|
pop hl
|
|
ld de, EngineBuffer1
|
|
ld bc, 5 ; signpost event length
|
|
call CopyBytes
|
|
scf
|
|
ret
|
|
; 2ad4
|
|
|
|
CheckCurrentNextMapXYTriggers:: ; 2ad4
|
|
; If there are no xy triggers, we don't need to be here.
|
|
ld a, [wCurrentNextMapXYTriggerCount]
|
|
and a
|
|
ret z
|
|
; Copy the trigger count into c.
|
|
ld c, a
|
|
ld a, [hROMBank]
|
|
push af
|
|
call SwitchToMapScriptHeaderBank
|
|
call CheckStandingOnXYTrigger
|
|
pop hl
|
|
ld a, h
|
|
rst Bankswitch
|
|
ret
|
|
; 2ae7
|
|
|
|
CheckStandingOnXYTrigger:: ; 2ae7
|
|
; Checks to see if you are standing on an xy-trigger. If yes, copies the trigger to EngineBuffer1 and sets carry.
|
|
ld hl, wCurrentNextMapXYTriggerHeaderPointer
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
; Load the active trigger ID into b
|
|
call CheckTriggers
|
|
ld b, a
|
|
; Load your current coordinates into de. This will be used to check if your position is in the xy-trigger table for the current map.
|
|
ld a, [PlayerNextMapX]
|
|
sub 4
|
|
ld d, a
|
|
ld a, [PlayerNextMapY]
|
|
sub 4
|
|
ld e, a
|
|
|
|
.loop
|
|
push hl
|
|
ld a, [hli]
|
|
cp b
|
|
jr z, .got_id
|
|
cp -1
|
|
jr nz, .next
|
|
|
|
.got_id
|
|
ld a, [hli]
|
|
cp e
|
|
jr nz, .next
|
|
ld a, [hli]
|
|
cp d
|
|
jr nz, .next
|
|
jr .copytrigger
|
|
|
|
.next
|
|
pop hl
|
|
ld a, $8 ; xy-trigger size
|
|
add l
|
|
ld l, a
|
|
jr nc, .nocarry
|
|
inc h
|
|
|
|
.nocarry
|
|
dec c
|
|
jr nz, .loop
|
|
xor a
|
|
ret
|
|
|
|
.copytrigger
|
|
pop hl
|
|
ld de, EngineBuffer1
|
|
ld bc, 8 ; xy-trigger size
|
|
call CopyBytes
|
|
scf
|
|
ret
|
|
; 2b29
|
|
|
|
|
|
FadeToMenu:: ; 2b29
|
|
xor a
|
|
ld [hBGMapMode], a
|
|
call LoadStandardMenuDataHeader
|
|
callba RotatePalettesRightPalettes
|
|
call ClearSprites
|
|
call DisableSpriteUpdates
|
|
ret
|
|
; 2b3c
|
|
|
|
|
|
ReturnToCallingMenu:: ; 2b3c
|
|
call ClearBGPalettes
|
|
call Function2bae
|
|
call UpdateSprites
|
|
call Call_ExitMenu
|
|
call Functiond90
|
|
jr Function2b5c
|
|
; 2b4d
|
|
|
|
ExitAllMenus:: ; 2b4d
|
|
call ClearBGPalettes
|
|
call Call_ExitMenu
|
|
call Function2bae
|
|
call UpdateSprites
|
|
call Functiond90
|
|
Function2b5c:: ; 2b5c
|
|
ld b, SCGB_09
|
|
call GetSGBLayout
|
|
callba Function49409
|
|
call Function3200
|
|
callba RotatePalettesLeftPalettes
|
|
call EnableSpriteUpdates
|
|
ret
|
|
; 2b74
|
|
|
|
|
|
Function2b74:: ; 0x2b74
|
|
push af
|
|
ld a, $1
|
|
ld [wSpriteUpdatesEnabled], a
|
|
call ClearBGPalettes
|
|
call ClearSprites
|
|
call Function2bae
|
|
hlcoord 0, 12
|
|
lb bc, 4, 18
|
|
call TextBox
|
|
ld hl, VramState
|
|
set 0, [hl]
|
|
call UpdateSprites
|
|
call Function3200
|
|
ld b, SCGB_09
|
|
call GetSGBLayout
|
|
callba Function49409
|
|
call UpdateTimePals
|
|
call DelayFrame
|
|
ld a, $1
|
|
ld [hMapAnims], a
|
|
pop af
|
|
ret
|
|
; 0x2bae
|
|
|
|
Function2bae:: ; 2bae
|
|
call DisableLCD
|
|
call ClearSprites
|
|
callba RefreshSprites
|
|
call LoadStandardFont
|
|
call LoadFontsExtra
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, [MapGroup]
|
|
ld b, a
|
|
ld a, [MapNumber]
|
|
ld c, a
|
|
call SwitchToAnyMapBank
|
|
callba Function8c001
|
|
call OverworldTextModeSwitch
|
|
call LoadTileset
|
|
ld a, 9
|
|
call SkipMusic
|
|
pop af
|
|
rst Bankswitch
|
|
|
|
call EnableLCD
|
|
ret
|
|
; 2be5
|
|
|
|
|
|
GetMapHeaderPointer:: ; 2be5
|
|
ld a, [MapGroup]
|
|
ld b, a
|
|
ld a, [MapNumber]
|
|
ld c, a
|
|
; 2bed
|
|
|
|
GetAnyMapHeaderPointer:: ; 0x2bed
|
|
; Prior to calling this function, you must have switched banks so that
|
|
; MapGroupPointers is visible.
|
|
|
|
; inputs:
|
|
; b = map group, c = map number
|
|
; XXX de = ???
|
|
|
|
; outputs:
|
|
; hl points to the map header
|
|
push bc ; save map number for later
|
|
|
|
; get pointer to map group
|
|
dec b
|
|
ld c, b
|
|
ld b, 0
|
|
ld hl, MapGroupPointers
|
|
rept 2
|
|
add hl, bc
|
|
endr
|
|
|
|
ld a, [hli]
|
|
ld h, [hl]
|
|
ld l, a
|
|
pop bc ; restore map number
|
|
|
|
; find the cth map header
|
|
dec c
|
|
ld b, 0
|
|
ld a, 9
|
|
call AddNTimes
|
|
ret
|
|
; 0x2c04
|
|
|
|
GetMapHeaderMember:: ; 0x2c04
|
|
; Extract data from the current map's header.
|
|
|
|
; inputs:
|
|
; de = offset of desired data within the mapheader
|
|
|
|
; outputs:
|
|
; bc = data from the current map's header
|
|
; (e.g., de = $0003 would return a pointer to the secondary map header)
|
|
|
|
ld a, [MapGroup]
|
|
ld b, a
|
|
ld a, [MapNumber]
|
|
ld c, a
|
|
; fallthrough
|
|
|
|
GetAnyMapHeaderMember:: ; 0x2c0c
|
|
; bankswitch
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, BANK(MapGroupPointers)
|
|
rst Bankswitch
|
|
|
|
call GetAnyMapHeaderPointer
|
|
add hl, de
|
|
ld c, [hl]
|
|
inc hl
|
|
ld b, [hl]
|
|
|
|
; bankswitch back
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
; 0x2c1c
|
|
|
|
|
|
SwitchToMapBank:: ; 2c1c
|
|
ld a, [MapGroup]
|
|
ld b, a
|
|
ld a, [MapNumber]
|
|
ld c, a
|
|
; 2c24
|
|
|
|
SwitchToAnyMapBank:: ; 2c24
|
|
call GetAnyMapBank
|
|
rst Bankswitch
|
|
ret
|
|
; 2c29
|
|
|
|
|
|
GetMapBank:: ; 2c29
|
|
ld a, [MapGroup]
|
|
ld b, a
|
|
ld a, [MapNumber]
|
|
ld c, a
|
|
; 2c31
|
|
|
|
GetAnyMapBank:: ; 2c31
|
|
push hl
|
|
push de
|
|
ld de, 0
|
|
call GetAnyMapHeaderMember
|
|
ld a, c
|
|
pop de
|
|
pop hl
|
|
ret
|
|
; 2c3d
|
|
|
|
PartiallyCopyMapHeader:: ; 2c3d
|
|
; Copy second map header bank, tileset, permission, and second map header address
|
|
; from the current map's map header.
|
|
ld a, [hROMBank]
|
|
push af
|
|
ld a, BANK(MapGroupPointers)
|
|
rst Bankswitch
|
|
|
|
call GetMapHeaderPointer
|
|
ld de, wSecondMapHeaderBank
|
|
ld bc, MapHeader - wSecondMapHeaderBank
|
|
call CopyBytes
|
|
|
|
pop af
|
|
rst Bankswitch
|
|
ret
|
|
; 2c52
|
|
|
|
SwitchToMapScriptHeaderBank:: ; 2c52
|
|
ld a, [MapScriptHeaderBank]
|
|
rst Bankswitch
|
|
ret
|
|
; 2c57
|
|
|
|
|
|
GetMapScriptHeaderBank:: ; 2c57
|
|
ld a, [MapScriptHeaderBank]
|
|
ret
|
|
; 2c5b
|
|
|
|
GetAnyMapBlockdataBank:: ; 2c5b
|
|
; Return the blockdata bank for group b map c.
|
|
push hl
|
|
push de
|
|
push bc
|
|
|
|
push bc
|
|
ld de, 3 ; second map header pointer
|
|
call GetAnyMapHeaderMember
|
|
ld l, c
|
|
ld h, b
|
|
pop bc
|
|
|
|
push hl
|
|
ld de, 0 ; second map header bank
|
|
call GetAnyMapHeaderMember
|
|
pop hl
|
|
|
|
ld de, 3 ; blockdata bank
|
|
add hl, de
|
|
ld a, c
|
|
call GetFarByte
|
|
rst Bankswitch
|
|
|
|
pop bc
|
|
pop de
|
|
pop hl
|
|
ret
|
|
; 2c7d
|
|
|
|
GetSecondaryMapHeaderPointer:: ; 0x2c7d
|
|
; returns the current map's secondary map header pointer in hl.
|
|
push bc
|
|
push de
|
|
ld de, 3 ; secondary map header pointer (offset within header)
|
|
call GetMapHeaderMember
|
|
ld l, c
|
|
ld h, b
|
|
pop de
|
|
pop bc
|
|
ret
|
|
; 2c8a
|
|
|
|
GetMapPermission:: ; 2c8a
|
|
push hl
|
|
push de
|
|
push bc
|
|
ld de, 2 ; permission
|
|
call GetMapHeaderMember
|
|
ld a, c
|
|
pop bc
|
|
pop de
|
|
pop hl
|
|
ret
|
|
; 2c98
|
|
|
|
Function2c98:: ; 2c98
|
|
ret
|
|
; 2c99
|
|
|
|
GetAnyMapPermission:: ; 2c99
|
|
push hl
|
|
push de
|
|
push bc
|
|
ld de, 2 ; permission
|
|
call GetAnyMapHeaderMember
|
|
ld a, c
|
|
pop bc
|
|
pop de
|
|
pop hl
|
|
ret
|
|
; 2ca7
|
|
|
|
GetAnyMapTileset:: ; 2ca7
|
|
ld de, 1 ; tileset
|
|
call GetAnyMapHeaderMember
|
|
ld a, c
|
|
ret
|
|
; 2caf
|
|
|
|
GetWorldMapLocation:: ; 0x2caf
|
|
; given a map group/id in bc, return its location on the Pokégear map.
|
|
push hl
|
|
push de
|
|
push bc
|
|
|
|
ld de, 5 ; landmark
|
|
call GetAnyMapHeaderMember
|
|
ld a, c
|
|
|
|
pop bc
|
|
pop de
|
|
pop hl
|
|
ret
|
|
; 0x2cbd
|
|
|
|
GetMapHeaderMusic:: ; 2cbd
|
|
RADIO_TOWER_MUSIC EQU 7
|
|
|
|
push hl
|
|
push bc
|
|
ld de, 6 ; music
|
|
call GetMapHeaderMember
|
|
ld a, c
|
|
cp MUSIC_MAHOGANY_MART
|
|
jr z, .mahoganymart
|
|
bit RADIO_TOWER_MUSIC, c
|
|
jr nz, .radiotower
|
|
callba Function8b342
|
|
ld e, c
|
|
ld d, 0
|
|
.done
|
|
pop bc
|
|
pop hl
|
|
ret
|
|
|
|
.radiotower
|
|
ld a, [StatusFlags2]
|
|
bit 0, a
|
|
jr z, .clearedradiotower
|
|
ld de, MUSIC_ROCKET_OVERTURE
|
|
jr .done
|
|
|
|
.clearedradiotower
|
|
; the rest of the byte
|
|
ld a, c
|
|
and 1 << RADIO_TOWER_MUSIC - 1
|
|
ld e, a
|
|
ld d, 0
|
|
jr .done
|
|
|
|
.mahoganymart
|
|
ld a, [StatusFlags2]
|
|
bit 7, a
|
|
jr z, .clearedmahogany
|
|
ld de, MUSIC_ROCKET_HIDEOUT
|
|
jr .done
|
|
|
|
.clearedmahogany
|
|
ld de, MUSIC_CHERRYGROVE_CITY
|
|
jr .done
|
|
; 2cff
|
|
|
|
GetMapHeaderTimeOfDayNybble:: ; 2cff
|
|
call GetPhoneServiceTimeOfDayByte
|
|
and $f
|
|
ret
|
|
; 2d05
|
|
|
|
GetMapHeaderPhoneServiceNybble:: ; 2d05
|
|
call GetPhoneServiceTimeOfDayByte
|
|
and $f0
|
|
swap a
|
|
ret
|
|
; 2d0d
|
|
|
|
GetPhoneServiceTimeOfDayByte:: ; 2d0d
|
|
push hl
|
|
push bc
|
|
|
|
ld de, 7 ; phone service and time of day
|
|
call GetMapHeaderMember
|
|
ld a, c
|
|
|
|
pop bc
|
|
pop hl
|
|
ret
|
|
; 2d19
|
|
|
|
GetFishingGroup:: ; 2d19
|
|
push de
|
|
push hl
|
|
push bc
|
|
|
|
ld de, 8 ; fishing group
|
|
call GetMapHeaderMember
|
|
ld a, c
|
|
|
|
pop bc
|
|
pop hl
|
|
pop de
|
|
ret
|
|
; 2d27
|
|
|
|
LoadTilesetHeader:: ; 2d27
|
|
push hl
|
|
push bc
|
|
|
|
ld hl, Tilesets
|
|
ld bc, Tileset01 - Tileset00
|
|
ld a, [wTileset]
|
|
call AddNTimes
|
|
|
|
ld de, TilesetBank
|
|
ld bc, Tileset01 - Tileset00
|
|
|
|
ld a, BANK(Tilesets)
|
|
call FarCopyBytes
|
|
|
|
pop bc
|
|
pop hl
|
|
ret
|
|
; 2d43
|