Merge pull request #3 from LLCoolDave/doorframefixes

Fix for door frame code for entrance shuffling.

LTTP_RND_GeneralBugfixes.asm

@@ -119,6 +119,7 @@ incsrc glitched.asm
 incsrc hardmode.asm
 incsrc goalitem.asm
 incsrc compasses.asm
+incsrc doorframefixes.asm
 incsrc hashalphabet.asm ; <- TAKE OUT THE EXTRA ORGS IN HERE - THIS IS WHY WE COULDN'T ADD MORE FILES EARLIER
 warnpc $A18000
 

doorframefixes.asm

@@ -0,0 +1,44 @@
+;================================================================================
+; Door Frame Fixes
+;================================================================================
+
+;--------------------------------------------------------------------------------
+; StoreLastEntranceID
+;--------------------------------------------------------------------------------
+StoreLastEntranceID:
+	CPX #$003a : BCC .noStore
+	TXA : SBC #$3a
+	BRA .done
+	.noStore
+		LDA #$00
+	.done
+		STA $7F5099
+		LDA $1BBB73, X : STA $010E		
+RTL
+;--------------------------------------------------------------------------------
+
+;--------------------------------------------------------------------------------
+; CacheDoorFrameData
+;--------------------------------------------------------------------------------
+CacheDoorFrameData:
+	LDA $7F5099 : BEQ .originalBehaviour
+	DEC : ASL : TAX
+	LDA EntranceDoorFrameTable, X : STA $0696
+	BRA .done
+	.originalBehaviour
+		LDA $D724, X : STA $0696
+	.done
+		STZ $0698
+		LDA #$00
+		STA $7F5099
+RTL
+;--------------------------------------------------------------------------------
+
+;--------------------------------------------------------------------------------
+; WalkDownIntoTavern
+;--------------------------------------------------------------------------------
+WalkDownIntoTavern:
+	LDA $7F5099
+	CMP #$08
+RTL
+;--------------------------------------------------------------------------------

hooks.asm

@@ -1745,3 +1745,24 @@ JSL.l LampCheck
 org $01F503 ; <- F503 - Bank01.asm:14994 (LDA.b #$01 : STA $1D)
 JSL.l SetOverlayIfLamp
 ;================================================================================
+
+;================================================================================
+; Overworld Door Frame Overlay Fix
+;
+; When entering an overworld entrance, if it is an entrance to a simple cave, we
+; store the entrance id, then use that (instead of the cave id) to determine the
+; overlay to draw when leaving the cave again. We also use this value to
+; identify the tavern entrance to determine whether link should walk up or down.
+;--------------------------------------------------------------------------------
+org $1BBD5F ; <- Bank1b.asm:296 (LDA $1BBB73, X : STA $010E)
+JSL.l StoreLastEntranceID
+NOP #3
+;--------------------------------------------------------------------------------
+org $02D754 ; <- Bank02.asm:10847 (LDA $D724, X : STA $0696 : STZ $0698)
+JSL.l CacheDoorFrameData
+NOP #5
+;--------------------------------------------------------------------------------
+org $0298AD ; <- Bank02.asm:4495 (LDA $010E : CMP.b #$43)
+JSL.l WalkDownIntoTavern
+NOP #1
+;================================================================================

tables.asm

@@ -1135,6 +1135,7 @@ dw #9999 ; Rupee Limit
 ; $7F5096 - Dialog Offset Pointer Return (Low)
 ; $7F5097 - Dialog Offset Pointer Return (High)
 ; $7F5098 - Water Entry Index
+; $7F5099 - Last Entered Entrance
 ; $7F50D0 - $7F50FF - Block Cypher Parameters
 ; $7F5100 - $7F51FF - Block Cypher Buffer
 ; $7F5200 - $7F52FF - RNG Pointer Block
@@ -1163,3 +1164,15 @@ db $83, $21, $EB, $6E, $0A, $71, $B0, $11, $85, $C7, $A1, $FD, $E5, $16, $48, $F
 db $F2, $23, $2F, $28, $9B, $AA, $AB, $D0, $6A, $9D, $C6, $2D, $00, $FE, $E1, $3F
 db $A0, $4A, $B8, $4E, $74, $1F, $8E, $A9, $F5, $CD, $60, $91, $DB, $D8, $52, $E2
 ;================================================================================
+org $30A100 ; PC 0x182100
+EntranceDoorFrameTable:  
+dw $0000, $0000, $0DE8, $0B98, $14CE, $0000, $1C50, $FFFF
+dw $1466, $0000, $1AB6, $0B98, $1AB6, $040E, $9C0C, $1530
+dw $0A98, $0000, $0000, $0000, $0000, $0000, $0000, $0816
+dw $0DE8, $0000, $0000, $0000, $0000, $09AC, $0000, $0000
+dw $0000, $0000, $0000, $0000, $0000, $0000, $0000, $0000
+dw $041A, $0000, $091E, $09AC, $0000, $0000, $0000, $0000
+dw $0000, $0000, $0000, $0000, $0000, $0000, $0000, $0000
+dw $0000, $0AA8, $07AA, $0000, $0000, $0000, $0000, $0000
+dw $0000, $0000, $0000, $0000, $0000, $0000
+;===============================================================================