From d7a360894329f6a6ebaf050fc3ece34adb5bee8e Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Mon, 17 Mar 2003 19:54:57 +0000
Subject: [PATCH] can now convert v3 models to v6

---
 tools/misc/mdl.py     |  5 ++--
 tools/misc/mdlconv.py | 66 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 2 deletions(-)
 create mode 100644 tools/misc/mdlconv.py

diff --git a/tools/misc/mdl.py b/tools/misc/mdl.py
index a934948bc..7571b7909 100644
--- a/tools/misc/mdl.py
+++ b/tools/misc/mdl.py
@@ -6,7 +6,7 @@ model = open(sys.argv[1],"rb").read()
 m = unpack ("4s l 3f 3f f 3f i i i i i i i", model[:76])
 model = model[76:]
 m = m[0:2] + (m[2:5],) + (m[5:8],) + m[8:9] + (m[9:12],) + m[12:20]
-if m[2] == 6:
+if m[1] == 6:
 	m = m + unpack ("i f", model[:8])
 	model = model[8:]
 pprint (m)
@@ -22,6 +22,7 @@ for i in range(m[6]):
 	else:
 		n = unpack ("l", model[:4])[0]
 		model = model [4:]
+		print n
 		k = (n, unpack (`n`+"f", model[:n*4]), [])
 		model = model [n*4:]
 		for j in range (n):
@@ -49,7 +50,7 @@ for i in range (m[11]):
 	t = unpack ("l", model[:4])[0]
 	model = model[4:]
 	if t==0:
-		if m[2] == 6:
+		if m[1] == 6:
 			f = (t, unpack ("3B B 3B B 16s", model[:24]), [])
 			model = model[24:]
 		else:
diff --git a/tools/misc/mdlconv.py b/tools/misc/mdlconv.py
new file mode 100644
index 000000000..71d7691f7
--- /dev/null
+++ b/tools/misc/mdlconv.py
@@ -0,0 +1,66 @@
+from struct import *
+from pprint import *
+import sys
+import os
+
+def convert (fname):
+	f = open (fname, "rb")
+	model = f.read ()
+	f.close ()
+	if len (model) < 8 or model[:4] != "IDPO" or unpack ("<I", model[4:8])[0] != 3:
+		print fname, "is not a v3 mdl file";
+		return
+	os.rename (fname, fname + ".bak")
+	f = open (fname, "wb")
+	f.write (model[:4] + pack ("<I", 6) + model[8:76])
+	f.write ('\0' * 8)
+	numskins, skinwidth, skinheight, numverts, numtris, numframes = unpack("<IIIIII", model[48:72])
+	model = model[76:]
+
+	size = skinwidth * skinheight
+	for i in range (numskins):
+		type = unpack ("<I", model[:4])[0]
+		f.write (model[:4])
+		model = model[4:]
+		if not type:
+			f.write (model[:size])
+			model = model [size:]
+		else:
+			num = unpack ("<I", model[:4])[0]
+			f.write (model[:4])
+			model = model[4:]
+			f.write (model[:num * 4])
+			model = model[num * 4:]
+			f.write (model[:size * num])
+			model = model[size * num:]
+
+	for i in range (numverts):
+		s = model[:12]
+		model = model[12:]
+		fl = unpack("<I", s[:4])[0] << 5
+		s = pack("<I", fl) + s[4:]
+		f.write (s)
+
+
+	f.write (model[:numtris * 16])
+	model = model[numtris * 16:]
+
+	for i in range (numframes):
+		type = unpack ("<I", model[:4])[0]
+		f.write (model[:4])
+		model = model[4:]
+		if not type:
+			f.write (model[:8])
+			model = model [8:]
+			f.write ('\0' * 16)
+			f.write (model[:numverts * 4])
+			model = model [numverts * 4:]
+		else:
+			print "don't know frame groups yet"
+			sys.exit (1)
+
+	f.close ()
+
+for f in sys.argv[1:]:
+	print f
+	convert (f)