From 99da1d31158461364cb783eaca8e7cb378e56be6 Mon Sep 17 00:00:00 2001
From: Catobat <69204835+Catobat@users.noreply.github.com>
Date: Wed, 16 Dec 2020 18:04:37 +0100
Subject: [PATCH] Reset boss RNG and other things on new file

---
 events.asm   | 10 ++++++++++
 init.asm     |  1 +
 rngfixes.asm |  8 ++++----
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/events.asm b/events.asm
index 15912b7..4ff5905 100644
--- a/events.asm
+++ b/events.asm
@@ -149,6 +149,16 @@ OnNewFile:
 		LDA StartingSword : STA $7EF359 ; set starting sword type
 		LDA !INVENTORY_SWAP : STA $70038C ; copy starting equipment swaps to file select screen
 		LDA !INVENTORY_SWAP_2 : STA $70038E
+
+		; reset some values on new file that are otherwise only reset on hard reset
+		STZ $03C4 ; ancilla slot index
+		STZ $047A ; EG
+		STZ $0B08 : STZ $0B09 ; arc variable
+		STZ $0CFB ; enemies killed (pull trees)
+		STZ $0CFC ; times taken damage (pull trees)
+		STZ $0FC7 : STZ $0FC8 : STZ $0FC9 : STZ $0FCA : STZ $0FCB : STZ $0FCC : STZ $0FCD ; prize packs
+		LDA #$00 : STA $7EC011 ; mosaic
+		JSL InitRNGPointerTable ; boss RNG
 	PLP : PLX
 RTL
 ;--------------------------------------------------------------------------------
diff --git a/init.asm b/init.asm
index 8da91a0..47a5726 100644
--- a/init.asm
+++ b/init.asm
@@ -56,5 +56,6 @@ RTL
 Init_PostRAMClear:
 
 	JSL MSUInit
+	JSL InitRNGPointerTable
 
 JML $00D463	; The original target of the jump table that we hijacked
\ No newline at end of file
diff --git a/rngfixes.asm b/rngfixes.asm
index ae1e797..cf2b7b9 100644
--- a/rngfixes.asm
+++ b/rngfixes.asm
@@ -107,9 +107,9 @@ RTL
 !RNG_POINTERS = "$7F5200"
 GetStaticRNG:
 	PHX : PHP
-	REP #$20 ; set 16-bit accumulator and index registers
-	AND.w #$007F
-	ASL : TAX : LDA !RNG_POINTERS, X : INC : AND.w #$03FF : STA !RNG_POINTERS, X : TAX : ASL ; increment pointer and move value to X
+	REP #$30 ; set 16-bit accumulator and index registers
+	AND.w #$000F
+	ASL : TAX : LDA !RNG_POINTERS, X : INC : AND.w #$03FF : STA !RNG_POINTERS, X : TAX ; increment pointer and move value to X
 	LDA Static_RNG, X ; load RNG value
 	PLP : PLX
 RTL
@@ -123,7 +123,7 @@ InitRNGPointerTable:
 		LDA.l .rngDefaults, X : STA !RNG_POINTERS, X : INX #2
 		LDA.l .rngDefaults, X : STA !RNG_POINTERS, X : INX #2
 		LDA.l .rngDefaults, X : STA !RNG_POINTERS, X : INX #2
-	CPX.w #$007F : !BLT -
+	CPX.w #$001F : !BLT -
 	PLP : PLX
 RTL
 .rngDefaults