From 3dde5bcbbd4572217540a35bbcdb0174d8b351a5 Mon Sep 17 00:00:00 2001
From: Smallhacker <thesmallhacker@gmail.com>
Date: Thu, 4 Jan 2018 01:17:20 -0500
Subject: [PATCH] Added Bombos platform in first Ice Palace room

---
 LTTP_RND_GeneralBugfixes.asm |   2 +-
 graphicsoverride.asm         |  62 -----------------------------------
 hooks.asm                    |  18 +++-------
 ice_bombos_floor.bin         | Bin 128 -> 0 bytes
 ice_palace_floor.bin         | Bin 0 -> 2048 bytes
 icepalacegraphics.asm        |  47 ++++++++++++++++++++++++++
 6 files changed, 53 insertions(+), 76 deletions(-)
 delete mode 100644 graphicsoverride.asm
 delete mode 100644 ice_bombos_floor.bin
 create mode 100644 ice_palace_floor.bin
 create mode 100644 icepalacegraphics.asm

diff --git a/LTTP_RND_GeneralBugfixes.asm b/LTTP_RND_GeneralBugfixes.asm
index 2a80069..8d62bbc 100644
--- a/LTTP_RND_GeneralBugfixes.asm
+++ b/LTTP_RND_GeneralBugfixes.asm
@@ -124,7 +124,7 @@ incsrc doorframefixes.asm
 ;incsrc shopkeeper.asm
 incsrc cuccostorm.asm
 incsrc roomloading.asm
-incsrc graphicsoverride.asm
+incsrc icepalacegraphics.asm
 incsrc hashalphabet.asm ; <- TAKE OUT THE EXTRA ORGS IN HERE - THIS IS WHY WE COULDN'T ADD MORE FILES EARLIER
 warnpc $A18000
 
diff --git a/graphicsoverride.asm b/graphicsoverride.asm
deleted file mode 100644
index 830d319..0000000
--- a/graphicsoverride.asm
+++ /dev/null
@@ -1,62 +0,0 @@
-macro OverwriteVramTile(firstTileIndex, count)
-    LDA.w #<firstTileIndex>+512*8*8*4/16
-    LDX.b #<count>
-    JSR UploadTileToVram
-endmacro
-
-GraphicsOverrideHook:
-    JSL .resumeOriginalCode
-
-    LDA $0A ; Floor tileset loaded
-    CMP #$0A ; Floor tileset index used by Ice and Mire
-    BEQ .loadedIceOrMireFloor
-    RTL
-
-.loadedIceOrMireFloor
-    LDA $040C ; Load dungeon number
-    CMP #$12 ; Ice Palace
-    BEQ .isInIcePalace
-    RTL
-
-.isInIcePalace
-    ; We've just loading the floor tiles in Ice Palace.
-    ; Replace the bridge tiles with the bombos medallion
-
-    LDA.b #IcePalaceMedallionGfx>>16
-    STA $02
-    REP #$20
-    LDA.w #IcePalaceMedallionGfx
-    STA $00
-
-    %OverwriteVramTile($CA, 2)
-    %OverwriteVramTile($DA, 2)
-
-    SEP #$20
-    RTL
-
-.resumeOriginalCode
-    ; Overwritten instructions:
-    PHB
-    LDA.b #$00
-    PHA
-    PLB
-    LDA.b #$80
-    JML GraphicsOverrideResume
-
-; A = VRAM word address to upload to (Actual VRAM address / 2)
-; X = Tiles to upload
-; $00-$02 = Pointer to graphics data
-UploadTileToVram:
-    ; TODO: This should probably be optimized with a DMA
-    STA $2116
-    TXA : ASL #4 : TAX ; X = Amount of words to upload (Tiles to upload * 16)
--   LDA [$00]
-    STA $2118
-    INC $00
-    INC $00
-    DEX
-    BNE -
-    RTS
-
-IcePalaceMedallionGfx:
-    incbin ice_bombos_floor.bin
\ No newline at end of file
diff --git a/hooks.asm b/hooks.asm
index 08b75bd..c08a101 100644
--- a/hooks.asm
+++ b/hooks.asm
@@ -1945,17 +1945,9 @@ org $02C2F3 ; <- Bank02.asm:10391 (JSL Dungeon_LoadRoom)
 ;================================================================================
 ; Hook for graphicsoverride.asm
 ;--------------------------------------------------------------------------------
-org $00E1DB ; <- Bank00.asm:4866 (PHB : PHK : PLB : LDA.b #$80)
-    JML GraphicsOverrideHook
-    NOP
-    GraphicsOverrideResume:
-;--------------------------------------------------------------------------------
-org $028BE7 ; <- Bank02.asm:2299 (JSL Dungeon_LoadRoom)
-    JSL LoadRoomHook
-;--------------------------------------------------------------------------------
-org $029309 ; <- Bank02.asm:3533 (JSL Dungeon_LoadRoom)
-    JSL LoadRoomHook
-;--------------------------------------------------------------------------------
-org $02C2F3 ; <- Bank02.asm:10391 (JSL Dungeon_LoadRoom)
-    JSL LoadRoomHook
+org $00E64D ; <- Bank00.asm:5656 (STZ $00 : STX $01 : STA $02)
+    JML BgGraphicsLoading
+    BgGraphicsLoadingCancel:
+    RTS : NOP
+    BgGraphicsLoadingResume:
 ;================================================================================
\ No newline at end of file
diff --git a/ice_bombos_floor.bin b/ice_bombos_floor.bin
deleted file mode 100644
index 87b992bf9ebe4598c0d5dede8cfc6c3361046da8..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 128
zcmcEDQ&armz2^N$``i0>)$gfy{?q?K{(=30{|)sG{~7)>+>y07ed62q-@pGh{Ym_1
z`R|ea7yh5@f0+L<{$~Wq&#7;#cibOuzkdGY^*qVkCqQCAoelK|;vdZaVE)JUU+lkI
fe`f!k{+siw@!@lNAo>4{{}}%;|6>2cf6*QQ7;#E+

diff --git a/ice_palace_floor.bin b/ice_palace_floor.bin
new file mode 100644
index 0000000000000000000000000000000000000000..4729f171f6d08793f8dbb1327d02948a79d69cb8
GIT binary patch
literal 2048
zcmbtVeM}Q)7=Mp$woFFZH1mvzfK@be2Ej>*l`Ca_O*37VDdGnhw)T%1U^79CdLLpm
zW?RsiWy2PWTbNtog7YJ;3LNAX#UK)AGKUpgK0C&gvQDtJch8<{RrD|a@Sfb;%RTS=
z-t+u^zxUTk$^>~{h#oWgwz)4gR<Z=1jRDe0YDftwCoW<qHZm~K*;!LlQc_;-a@p-R
z8x@`z)CQ`2Q##U|d5pluz)PTm1V{!m@IZka4h3)C*iq{J^H#&%`N|$OKL-v$8sx!Y
zh=G>f#jdOycH5P#-xezrkm&mH8tw<$E>Dg#&;_OeTT6?EiUT7Azy}gkLk=h)5J|9F
zOa_{mXsbc82!bS8ttJyqn@m=#B$4M_!-?)iCwG0;exZNW*`dk92_85PyPzHV;Veu6
zH^{Gy&h;cKlpHgri$DWE!4KfXFAriJ08GQ~?f&7po(+s!yudYZdEqMm3@_6RJjbi^
zZ%;S2wT_O3Lh|15RwY~MVgAzxwP6kRiroS+x+b=M6jOa7<n#2ty{b5I87#!k%#ly=
zh#=j0D$~3_Wpj0%qxSUG!KB%+8nR(8SP(yTgBM-T3KCn#e$O6ckFyfX3Iy1vf&dk^
z1hWFAKDQ)R@5#AW`j}q>Rv;kH#tX6Sl|xcM8vg3{B&V)zDP+K8h{McVP=vkYa86OW
zQF)R2n7*ZRtysllZ}Z?CI10018DjjR>jhhG<IIhRfBtK<Z|L9q!G|<zY9H1{VFfzW
z+Q?|n-F-(7o}2VZN>_eU1E*?pE9Up%JQY8WDOfINv}YXOaw5N~tbT1Hlw$`Oumv{2
zc32NU8ZFcMI?{b~ATFW+WL}2FsDKU_LLEA|{amhC$kaQJ)W;Q1Y*mRv=6SBU(ChSP
zg_kIsm0MxE{7oqKex`J7euP*`p~9Mn+OYmQBbnZ9NZoYw<X0z;)u!f7zm13^uDOwL
zKq|~ix_<4Rcd);Eu%(MEYJIaAPu6SjI=q3oD~R-quIG4fQHR;Cb36(HGawyoPa-tC
zpU6ZubrXRVSRnaOfaqCJBiJYg&k??e7a5Uh=6DVW0S?3bNWlcoS$u{%>yuz<csdB;
zhfpzKKBJC^Ty)p*ky12aAWnr+q8}X3M4!xJt*0;UyZF=VPOm$=>{NmJb`rb~D<iQK
z`NLrR>D?*+%<D7w)7ARSum<`405;-p%!HTYv<Vu+REtSq)lMOVr+WNaAkGxEVw%X@
zi3f9VNzZ$*2`V5THS{SkFdc%U-FE~fR(Vy?E9Q|yrFwkJ!5DhO2sEM3Jx`wiqFBgf
z2fZWrz^}+M!RmOJ0P$Ehg&OttUiZ|C%WY{~4%>t~Cq|t0Tbv_AS~I$IZNw@xO751f
z$}{mLQU9=j0rjyO9X1DMIH$Qa#e$1(AXc1<r_ulpJbQWQGYi44bLy-0RSC^zC=$yY
z+iaLugFzh-&^(*x9Ne>c0!}J=Wo9aPGOpnrjjNIB2>i0P(`c_aQg)=Qy5blsROmsA
zp~ui-e_G^+;0kq*fa-`;l-0+(DB#z3CrPFQJL3aMz08#z4nKII8M}|#rw(e@|5#90
zc&_x<9ioxPl2^b|M6d|TkR=Xl@Fow;9$f@P<o^EfYsPCX#B;qel2MUnpqKt)JMEiu
zbNR&@jvc4{$y4?vGLqv-Yto<&jOQ6K8`o~dJt|NKYgDc{YVS_Ph^qcl>G3=m<8kEy
zxC8^}9wzMadH&NA;kS@W-?@NOl@sNchyB>2iiOYjd57I|8N#v*$L?H}X*`|D_&x^j
z6dV(~Xg9G|iY;B<fd`?moQmwK{~xI^72PieOpO)0{G%y%Q|7jyf9Qr(=Zi)E_~Vg(
F{0}d~s6YS!

literal 0
HcmV?d00001

diff --git a/icepalacegraphics.asm b/icepalacegraphics.asm
new file mode 100644
index 0000000..89aedb4
--- /dev/null
+++ b/icepalacegraphics.asm
@@ -0,0 +1,47 @@
+BgGraphicsLoading:
+    ; Instructions overwritten
+    STZ $00
+    STX $01
+    STA $02
+
+    ; Y = Graphics file being loaded
+    CPY #$0A ; 0A = Ice/Mire floor file
+    BNE .useDefaultGraphics
+
+    LDA $040C ; Dungeon number
+    CMP #$12 ; Ice Palace
+    BEQ .useSpecialIcePalaceFile
+
+.useDefaultGraphics
+    JML BgGraphicsLoadingResume
+
+.useSpecialIcePalaceFile
+    ; We're loading the floor tiles in Ice Palace. Instead of the normal file,
+    ; load another one that replaces the bridge tiles with the Bombos medallion
+
+    LDA $FFFFFF
+
+    LDA.b #IcePalaceFloorGfx>>16
+    STA $02
+    REP #$20
+    LDA.w #IcePalaceFloorGfx
+    STA $00
+    LDX.b #64*2 ; Tiles to load * 2
+-
+    ; Unrolled loop to upload half a tile
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    LDA [$00] : STA $2118 : INC $00 : INC $00
+    DEX
+    BNE -
+
+    SEP #$20
+    JML BgGraphicsLoadingCancel
+
+IcePalaceFloorGfx:
+    incbin ice_palace_floor.bin
\ No newline at end of file