Added initial notes and save parser code

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python Debugger: Current File",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal",
+            "cwd": "${workspaceFolder}/src"
+        }
+    ]
+}

README.md

@@ -9,3 +9,12 @@ Current Ideas
 
 
  Gonna start with the Add X Keys
+
+
+
+ Structure
+
+ Code lives in src/
+
+ keyadd.py <Script to add keys to save file>
+ccsaveparser.py <Save parser lib>

notes

@@ -6,7 +6,26 @@ SaveSlot.sav
 
 save appears to be seralised as
 
+## This was an incorrect assumption
 PropertyName (Fixed size) Property Type (Fixed size) Property (Dynamic based on type?)
 
+## These are my current findings
+Propertyname:
+ - Not fixed size
+ - Appears to be NULL terminated strings
+ - Appears to be fit into 16 byte chunks
+  - IE: 'Keys' is stored in 16 bytes and 'AccountLevel' is stored in 32 bytes
+ - After keys there is an `0x0C` that I am not sure what that is yet, its after the NULL byte for a few strings
+  - There is always a value after the NULL byte I've seen `0x0C` and `0x0D` so far (Might indicate the size of the data or the data is always a fixed size)
+
+PropertyType
+ - Not fixed size
+ - Appears to be fit into 16 byte chunks
+  - IE: 'IntProperty' is stored in 32 bytes
+ - Value is directly after padding
+ - Value stored in MAYBE 16 bytes ( HIGHLY DOUBT IT)
+  - 16 bytes contain `19 00 00 00 0B 00 00 00`
+   - 19 being the current keys I have
+
 Property/Type/Offset
 Keys/Int/0x12f9

src/ccsaveparser.py

@@ -0,0 +1,49 @@
+import struct
+
+
+def load_save(save_file_name):
+    try:
+        with open(save_file_name, "rb") as f:
+            data = f.read()
+            return data
+    except Exception as e:
+        print(f"Failed to read save file: {e}")
+
+
+def verify_save(save):
+    try:
+        struct.pack("bbbb", *save[:4]) == b"GVAS"
+        # This I think just means we have an unreal engine save but for now it should suffice
+        return True
+    except struct.error:
+        return False
+
+
+def read_token_at_offset(save, offset):
+    # Load the first 16 bytes from the offset
+    try:
+        data = struct.pack("b" * 9, *save[offset : offset + 9])
+        if data[-1] == 0x00:
+            return str(data.split(b"\x00")[0].decode())
+        else:
+            data = struct.pack("b" * 16, *save[offset : offset + 16])
+            if data[-1] == 0x00:
+                return str(data.split(b"\x00")[0].decode())
+            else:
+                return None
+    except struct.error as e:
+        print(f"Failed to parse data: {e}")
+
+
+save = load_save("./test.sav")
+
+if verify_save(save):
+    print("Save appears to be a save file of some kind")
+else:
+    print("The fuck is this shit mate")
+
+
+# Should be fine to do shit here
+# print(read_token_at_offset(save, 0x12DB))  # Keys
+# print(read_token_at_offset(save, 0x12AD))  # AccountLevel
+print(read_token_at_offset(save, 0x1329))  # AccountLevel