From 45efe714d5278beb9c5e1488a9986be820d15086 Mon Sep 17 00:00:00 2001
From: sigonasr2 <sigonasr2@gmail.com>
Date: Mon, 1 Jul 2024 11:38:30 -0400
Subject: [PATCH] Finish decompress function.

---
 .../EarthboundBattleBackgrounds/main.cpp              | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp b/EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp
index b96d369..8e834cb 100644
--- a/EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp
+++ b/EarthboundBattleBackgrounds/EarthboundBattleBackgrounds/main.cpp
@@ -115,6 +115,7 @@ struct Rom{
 			std::vector<uint16_t>blockOutput;
 			blockOutput.resize(size);
 			decompressBlock(ptr,blockOutput);
+			return blockOutput;
 		}
 	private:
 		void decompressBlock(uint32_t ptrStart,std::vector<uint16_t>&block){
@@ -167,10 +168,11 @@ struct Rom{
 						while(len--!=0)block[bpos++]=Rom::reversedBytes[block[bpos2++]&0xFF];
 					}break;
 					case UNKNOWN_1:{
-
+						if(bpos+2*len>maxLength||bpos<0)return;
+						while(len--!=0)block[bpos++]=block[bpos2--];
 					}break;
 					case UNKNOWN_2:{
-
+						return;
 					}break;
 				}
 			}
@@ -232,8 +234,9 @@ struct Rom{
 		std::vector<uint16_t>graphicsData;
 		std::vector<Tile>tiles;
 		BackgroundGraphics(std::string_view data,uint16_t index,byte bpp){
-			DataBlock graphicsPointer{data,0xD7A1U+index*4U};
-			graphicsPointer.decompress();
+			DataBlock graphicsPtr{data,0xD7A1U+index*4U};
+			DataBlock loadGraphicsPtr{data,snesToHex(graphicsPtr.readInt32())};
+			graphicsData=loadGraphicsPtr.decompress();
 		}
 	};
 	std::string data;