Files
alttpr-baserom/roomloading.asm
2018-01-03 23:33:45 -05:00

86 lines
3.3 KiB
NASM

LoadRoomHook:
JSL $01873A ; Dungeon_LoadRoom (Bank01.asm:726)
REP #$10 ; 16 bit XY
LDX $A0 ; Room ID
LDA RoomCallbackTable, X
SEP #$10 ; 8 bit XY
JSL $00879c ; UseImplicitRegIndexedLocalJumpTable
; Callback routines:
dl NoCallback ; 00
dl IcePalace1 ; 01
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
!IP_BORDER = #$08D0
!IP_ICON_1 = #$0CCA
!IP_ICON_2 = #$0CCB
!IP_ICON_3 = #$0CDA
!IP_ICON_4 = #$0CDB
!IP1_X = 14
!IP1_Y = 18
IcePalace1:
REP #$30 ; 16 AXY
%setTilePointer(!IP1_X, !IP1_Y, 1, 1)
LDA.w !IP_BORDER
%writeTile()
%writeTile()
%writeTile()
%writeTile()
%setTilePointer(!IP1_X, !IP1_Y+1, 1, 1)
%writeTile()
LDA.w !IP_ICON_1 : %writeTile()
LDA.w !IP_ICON_2 : %writeTile()
LDA.w !IP_BORDER : %writeTile()
%setTilePointer(!IP1_X, !IP1_Y+2, 1, 1)
%writeTile()
LDA.w !IP_ICON_3 : %writeTile()
LDA.w !IP_ICON_4 : %writeTile()
LDA.w !IP_BORDER : %writeTile()
%setTilePointer(!IP1_X, !IP1_Y+3, 1, 1)
%writeTile()
%writeTile()
%writeTile()
%writeTile()
SEP #$30 ; 8 AXY
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 $00, $00, $00, $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, $00, $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, $00, $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