Initial, partially unsuccessful version

2018-01-03 23:33:45 -05:00
parent 0097425e1e
commit f97618da6a
5 changed files with 184 additions and 0 deletions
--- a/roomloading.asm
+++ b/roomloading.asm
@@ -0,0 +1,86 @@
+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