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alttpr-baserom/roomloading.asm
Kevin Cathcart 77a65fde4e Add new feature to block HC exits in rain state 
This new feature will block off the upstairs exits in rain state,
which will enable Entrance Randomizer to have a safe Standard Mode
option.
2019-07-06 17:13:13 -04:00

168 lines
5.5 KiB
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LoadRoomHook:
JSL.l IndoorTileTransitionCounter
.noStats
JSL Dungeon_LoadRoom
REP #$10 ; 16 bit XY
LDX $A0 ; Room ID
LDA RoomCallbackTable, X
SEP #$10 ; 8 bit XY
JSL UseImplicitRegIndexedLongJumpTable
; Callback routines:
dl NoCallback ; 00
dl IcePalaceBombosSE ; 01
dl IcePalaceBombosSW ; 02
dl IcePalaceBombosNE ; 03
dl CastleEastEntrance ; 04
dl CastleWestEntrance ; 05
NoCallback:
RTL
!RL_TILE = 2
!RL_LINE = 128
macro setTilePointer(roomX, roomY, quadX, quadY)
; Left-to-right math. Should be equivalent to 0x7e2000+(roomX*2)+(roomY*128)+(quadX*64)+(quadY*4096)
LDX.w #<quadY>*32+<roomY>*2+<quadX>*32+<roomX>*2
endmacro
macro writeTile()
STA.l $7E2000,x
INX #2
endmacro
macro writeTileAt(roomX, roomY, quadX, quadY)
STA.l <quadY>*32+<roomY>*2+<quadX>*32+<roomX>*2+$7E2000
endmacro
!BOMBOS_BORDER = #$08D0
!BOMBOS_ICON_1 = #$0CCA
!BOMBOS_ICON_2 = #$0CCB
!BOMBOS_ICON_3 = #$0CDA
!BOMBOS_ICON_4 = #$0CDB
macro DrawBombosPlatform(roomX, roomY, quadX, quadY)
REP #$30 ; 16 AXY
%setTilePointer(<roomX>, <roomY>, <quadX>, <quadY>)
LDA.w !BOMBOS_BORDER
%writeTile()
%writeTile()
%writeTile()
%writeTile()
%setTilePointer(<roomX>, <roomY>+1, <quadX>, <quadY>)
%writeTile()
LDA.w !BOMBOS_ICON_1 : %writeTile()
LDA.w !BOMBOS_ICON_2 : %writeTile()
LDA.w !BOMBOS_BORDER : %writeTile()
%setTilePointer(<roomX>, <roomY>+2, <quadX>, <quadY>)
%writeTile()
LDA.w !BOMBOS_ICON_3 : %writeTile()
LDA.w !BOMBOS_ICON_4 : %writeTile()
LDA.w !BOMBOS_BORDER : %writeTile()
%setTilePointer(<roomX>, <roomY>+3, <quadX>, <quadY>)
%writeTile()
%writeTile()
%writeTile()
%writeTile()
SEP #$30 ; 8 AXY
endMacro
IcePalaceBombosSE:
LDA AllowSwordlessMedallionUse : BNE + : RTL : +
%DrawBombosPlatform(14, 18, 1, 1)
RTL
IcePalaceBombosSW:
LDA AllowSwordlessMedallionUse : BNE + : RTL : +
%DrawBombosPlatform(14, 18, 0, 1)
RTL
IcePalaceBombosNE:
LDA AllowSwordlessMedallionUse : BNE + : RTL : +
%DrawBombosPlatform(14, 18, 1, 0)
RTL
CastleEastEntrance:
LDA $7EF3C5 : CMP.b #$02 : !BLT + : RTL : + ; only apply in rain states (0 or 1)
LDA.l BlockCastleDoorsInRain : BNE + : RTL : +
REP #$20 ; 16 A
LDA.w #$08e1 ; square peg
%writeTileAt(11,21,0,1)
%writeTileAt(11,26,0,1)
%writeTileAt(20,21,0,1)
%writeTileAt(20,26,0,1)
INC ;horizontal rail
%writeTileAt(12,21,0,1)
%writeTileAt(13,21,0,1)
%writeTileAt(14,21,0,1)
%writeTileAt(15,21,0,1)
%writeTileAt(16,21,0,1)
%writeTileAt(17,21,0,1)
%writeTileAt(18,21,0,1)
%writeTileAt(19,21,0,1)
INC ;vertical rail
%writeTileAt(11,22,0,1)
%writeTileAt(11,23,0,1)
%writeTileAt(11,24,0,1)
%writeTileAt(11,25,0,1)
%writeTileAt(20,22,0,1)
%writeTileAt(20,23,0,1)
%writeTileAt(20,24,0,1)
%writeTileAt(20,25,0,1)
SEP #$20 ; 8 A
RTL
CastleWestEntrance:
LDA $7EF3C5 : CMP.b #$02 : !BLT + : RTL : + ; only apply in rain states (0 or 1)
LDA.l BlockCastleDoorsInRain : BNE + : RTL : +
REP #$20 ; 16 A
LDA.w #$08e1 ; square peg
%writeTileAt(11,21,1,1)
%writeTileAt(11,26,1,1)
%writeTileAt(20,21,1,1)
%writeTileAt(20,26,1,1)
INC ;horizontal rail
%writeTileAt(12,21,1,1)
%writeTileAt(13,21,1,1)
%writeTileAt(14,21,1,1)
%writeTileAt(15,21,1,1)
%writeTileAt(16,21,1,1)
%writeTileAt(17,21,1,1)
%writeTileAt(18,21,1,1)
%writeTileAt(19,21,1,1)
INC ;vertical rail
%writeTileAt(11,22,1,1)
%writeTileAt(11,23,1,1)
%writeTileAt(11,24,1,1)
%writeTileAt(11,25,1,1)
%writeTileAt(20,22,1,1)
%writeTileAt(20,23,1,1)
%writeTileAt(20,24,1,1)
%writeTileAt(20,25,1,1)
SEP #$20 ; 8 A
RTL
RoomCallbackTable:
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $01, $00 ; 00x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 01x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 02x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 03x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 04x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 05x
db $05, $00, $04, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 06x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $02, $00 ; 07x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 08x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 09x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Ax
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Bx
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Cx
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $03, $00 ; 0Dx
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Ex
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Fx
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 0Fx
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 10x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 11x
db $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 ; 12x
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