Code cleanup; preparation for Japanese Battle eHEADmaster

1 files changed, 29 insertions, 0 deletions

diff --git a/scripts/stripgbc.py b/scripts/stripgbc.py
new file mode 100644
index 0000000..146d119
--- /dev/null
+++ b/scripts/stripgbc.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+import sys
+
+out = open(sys.argv[2], 'w')
+buffering = False
+buf = ""
+with open(sys.argv[1], 'rb') as f:
+	f.read(256) # skip to $0100
+	while True:
+		byte = f.read(1)
+		if not byte:
+			break
+
+		# the program shall end with $FF followed only by $00 bytes
+		# for every $FF we hit, buffer until something that isn’t $00
+		if (not buffering and ord(byte) == 0xFF) or (buffering and ord(byte) == 0x00):
+			buf += byte
+			buffering = True
+		elif buffering and ord(byte) == 0xFF:
+			out.write(buf)
+			buf = byte
+		elif buffering:
+			out.write(buf)
+			out.write(byte)
+			buf = ""
+			buffering = False
+		else:
+			out.write(byte)
+f.closed
\ No newline at end of file