import sys
import re
import math

vertexmatcher = re.compile(r"v (.*?) (.*?) (.*)")
trimatcher = re.compile(r"f (.*?) (.*?) (.*)")
quadmatcher = re.compile(r"f (.*?) (.*?) (.*?) (.*)")
indexmatcher = re.compile(r"([0-9]*)\/\/([0-9]*)")

def getvindex(indexline):
	vindexmatch = indexmatcher.match(indexline)
	if vindexmatch:
		return vindexmatch.group(1)
	else:
		return indexline

filenamematcher = re.compile(r"(.*)\..*?$")
filenamematcher2 = re.compile(r".*[/\\](.*?)$")

objfile = open(sys.argv[1])
filenamematch = filenamematcher.match(sys.argv[1])
outputname = filenamematch.group(1)
objnamematch = filenamematcher2.match(filenamematch.group(1))
objname = objnamematch.group(1)

vertices = []
fifoObjects = []


class FifoObject:
	def __init__(self):
		self.command = ""
		self.data = []

while 1:
	line = objfile.readline()
	if not line:
		break
	vertexmatch = vertexmatcher.match(line)
	if vertexmatch:
		vertices.append((vertexmatch.group(1), vertexmatch.group(2), vertexmatch.group(3)))
		continue
	quadmatch = quadmatcher.match(line)
	if quadmatch:
		fifoObject = FifoObject()
		fifoObject.command = "FIFO_BEGIN"
		fifoObject.data.append("GL_QUAD")
		fifoObjects.append(fifoObject)
		for i in range(1,4+1):
			fifoObject = FifoObject()
			fifoObject.command = "FIFO_VERTEX16"
			vertex = vertices[int(getvindex(quadmatch.group(i)))-1]
			fifoObject.data.append("VERTEX_PACK(floattov16(" + vertex[0]
				+ "), floattov16(" + vertex[1] + "))")
			fifoObject.data.append("VERTEX_PACK(floattov16(" + vertex[2]
				+ "), 0)")
			fifoObjects.append(fifoObject)
		continue
		
# do the crazy fifocommand packing
while (len(fifoObjects) % 4) > 0:
	fifoObject = FifoObject()
	fifoObject.command = "FIFO_END"
	fifoObjects.append(fifoObject)
#fifopack = []
#fifocounter = 0
#while fifocounter < len(fifocommand):
#	fifopack.append("FIFO_COMMAND_PACK(" + fifocommand[fifocounter] + ", "
#		+ fifocommand[fifocounter + 1] + ", "
#		+ fifocommand[fifocounter + 2] + ", "
#		+ fifocommand[fifocounter + 3] + ")")
#	fifocounter += 4
	

#i = 0
#datacounter = 0
#print len(fifodata)
#for packedcommand in fifopack:
#	cfile.write(", \n" + packedcommand)
#	datasubcounter = 0
#	while datasubcounter < 4:
#		print datacounter
#		cfile.write(", " + fifodata[datacounter])
#		if fifodata[datacounter].startswith("VERTEX_PACK"):
#			datacounter += 1
#			cfile.write(", " + fifodata[datacounter])
#		datasubcounter += 1
#		datacounter += 1

finaloutput = ""

length = 0
for i in range(0,len(fifoObjects)):
	if (i % 4) == 0:
		finaloutput += (", FIFO_COMMAND_PACK(" + fifoObjects[i].command + ", "
			+ fifoObjects[i + 1].command + ", "
			+ fifoObjects[i + 2].command + ", "
			+ fifoObjects[i + 3].command + ")")
		length += 1
	for data in fifoObjects[i].data:
		finaloutput += ", " + data
		length += 1
	
# interleave it all together
cfile = open(outputname + "Model.c", 'w')
cfile.write("// created by AWESOME SCRIPT!\n")
cfile.write("#include <nds.h>\n")
cfile.write("const u32 " + objname + "Model[] = { " + str(length))
cfile.write(finaloutput)
cfile.write(" };")

hfile = open(outputname + "Model.h", 'w')
hfile.write("extern const u32 " + objname + "Model[];\n")