An IPL decompiler for binary IPL data files for gta:sa.

bipltool-batch.py

## Benjamin Williams
## <eeu222@bangor.ac.uk>
## --
## bipltool.py/pyc

import os
import sys
import struct

#Base path to read from
basePath = "T:\\gtasa\\data\\maps\\exported\\";
outputPath = basePath + "output\\";

#File to read from
file = "vegasn_stream6.ipl";

for file in [x for x in os.listdir(basePath) if x.endswith(".ipl")]:
		
	print("[opening " + basePath + file + "...]");
	
	#Open up the file
	f = open(basePath + file, "rb");

	#INST and CARS block output
	instLines = [];
	carLines = [];

	try:
		header = f.read(4);
		
		if header != b"bnry":
			print("\t[!] Target file is not a binary ipl file. (Failed file signature)\n");
			f.close();
			continue;
			
		else:
			print("\t[!] Target file is a binary ipl file. Reading header..");
			
			numberOfInsts = struct.unpack('i', f.read(4))[0];
			print("\t[head] INST block has " + str(numberOfInsts) + " items.");
			
			#Skip unknown bytes (4 * 3)
			f.seek(f.tell() + 4 * 3);
			
			numberOfCars = struct.unpack('i', f.read(4))[0];
			print("\t[head] CARS block has " + str(numberOfCars) + " items.");
			
			#Skip unknown bytes (4 * 1)
			f.seek(f.tell() + 4);
			
			offset = struct.unpack('i', f.read(4))[0];
			print(str(offset) + " is the offset for the INST block.\n");
			
			#Skip junk data (11 * 4)
			f.seek(f.tell() + (11 * 4));
			
			print("\t[!] Read header values. Reading INST block:");

			#INST
			for i in range(0, numberOfInsts):
				posX = struct.unpack('f', f.read(4))[0];
				posY = struct.unpack('f', f.read(4))[0];
				posZ = struct.unpack('f', f.read(4))[0];
				
				rotX = struct.unpack('f', f.read(4))[0];
				rotY = struct.unpack('f', f.read(4))[0];
				rotZ = struct.unpack('f', f.read(4))[0];
				rotW = struct.unpack('f', f.read(4))[0];
				
				objID = struct.unpack('i', f.read(4))[0];
				unk   = struct.unpack('i', f.read(4))[0];
				flags = struct.unpack('i', f.read(4))[0];
				
				#ID, ModelName, Interior, PosX, PosY, PosZ, RotX, RotY, RotZ, RotW, LOD
				instLines.append("%d, dummy, %d, %.5f, %.5f, %.5f, %.5f, %.5f, %.5f, %.5f, %d" % (objID, unk, posX, posY, posZ, rotX, rotY, rotZ, rotW, flags));
				#print("\t\t[INST] Read and appended entry " + str(i + 1) + "/" + str(numberOfInsts) + ".");
			
			print("\n\t[!] Processed INST block. Reading CARS block:");
			
			#CARS
			for i in range(0, numberOfCars):
				posX = struct.unpack('f', f.read(4))[0];
				posY = struct.unpack('f', f.read(4))[0];
				posZ = struct.unpack('f', f.read(4))[0];
				
				#For some reason this needs negating and multiplying by 100...
				posA = -struct.unpack('f', f.read(4))[0] * 100;
				vID  = struct.unpack('i', f.read(4))[0];
				
				#PosX, PosY, PosZ, Angle, CarID, PrimCol, SecCol, ForceSpawn, Alarm, DoorLock, Unknown1, Unknown2
				carLines.append("%.5f, %.5f, %.5f, %.2f, %d, -1, -1, 0, 0, -1, -1" % (posX, posY, posZ, posA, vID));
				
				#Skip junk flags at end of CARS block (28 bytes)
				f.seek(f.tell() + 28);
				#print("\t\t[CARS] Read and appended entry " + str(i + 1) + "/" + str(numberOfCars) + ".");

			print("\n\t[!] Processed CARS block.");
			
	finally:
		f.close();

	#Append output
	lines  = "inst\n" + "\n".join(instLines) + "\nend\n";
	lines += "cars\n" + "\n".join(carLines) + "\nend";

	outputFile = outputPath + file;
	print("\n\t[!] Saving data to " + outputFile + "...");
	
	fp = open(outputFile, "w+");
	fp.write(lines);
	fp.close();

bipltool.py

## Benjamin Williams
## <eeu222@bangor.ac.uk>
## --
## bipltool.py/pyc

import os
import sys
import struct

#Base path to read from
basePath = "T:\\gtasa\\data\\maps\\exported\\";

#File to read from
file = "vegasn_stream6.ipl";

#Open up the file
f = open(basePath + file, "rb");

#INST and CARS block output
instLines = [];
carLines = [];

try:
	header = f.read(4);
	
	if header != b"bnry":
		print("target file is not a binary ipl file.");
		f.close();
		exit(1);
		
	else:
		print("target file is a binary ipl file.");
		
		numberOfInsts = struct.unpack('i', f.read(4))[0];
		print("[header] INST block has " + str(numberOfInsts) + " items.");
		
		#Skip unknown bytes (4 * 3)
		f.seek(f.tell() + 4 * 3);
		
		numberOfCars = struct.unpack('i', f.read(4))[0];
		print("[header] CARS block has " + str(numberOfCars) + " items.");
		
		#Skip unknown bytes (4 * 1)
		f.seek(f.tell() + 4);
		
		offset = struct.unpack('i', f.read(4))[0];
		print(str(offset) + " is the offset for the INST block.");
		
		#Skip junk data (11 * 4)
		f.seek(f.tell() + (11 * 4));
		
		print("Read header values. Reading instance data.");

		#INST
		for i in range(0, numberOfInsts):
			posX = struct.unpack('f', f.read(4))[0];
			posY = struct.unpack('f', f.read(4))[0];
			posZ = struct.unpack('f', f.read(4))[0];
			
			rotX = struct.unpack('f', f.read(4))[0];
			rotY = struct.unpack('f', f.read(4))[0];
			rotZ = struct.unpack('f', f.read(4))[0];
			rotW = struct.unpack('f', f.read(4))[0];
			
			objID = struct.unpack('i', f.read(4))[0];
			unk   = struct.unpack('i', f.read(4))[0];
			flags = struct.unpack('i', f.read(4))[0];
			
			#ID, ModelName, Interior, PosX, PosY, PosZ, RotX, RotY, RotZ, RotW, LOD
			instLines.append("%d, dummy, %d, %.5f, %.5f, %.5f, %.5f, %.5f, %.5f, %.5f, %d" % (objID, unk, posX, posY, posZ, rotX, rotY, rotZ, rotW, flags));
		
		#CARS
		for i in range(0, numberOfCars):
			posX = struct.unpack('f', f.read(4))[0];
			posY = struct.unpack('f', f.read(4))[0];
			posZ = struct.unpack('f', f.read(4))[0];
			
			#For some reason this needs negating and multiplying by 100...
			posA = -struct.unpack('f', f.read(4))[0] * 100;
			vID  = struct.unpack('i', f.read(4))[0];
			
			#PosX, PosY, PosZ, Angle, CarID, PrimCol, SecCol, ForceSpawn, Alarm, DoorLock, Unknown1, Unknown2
			carLines.append("%.5f, %.5f, %.5f, %.2f, %d, -1, -1, 0, 0, -1, -1" % (posX, posY, posZ, posA, vID));
			
			#Skip junk flags at end of CARS block (28 bytes)
			f.seek(f.tell() + 28);

finally:
	f.close();

#Append output
lines  = "inst\n" + "\n".join(instLines) + "\nend\n";
lines += "cars\n" + "\n".join(carLines) + "\nend";

print(lines);

iplsplitter.py

import sys
import os

basePath = "T:\gtasa\data\maps\\";

folders = [ ".", "country", "generic", "interior", "LA", "leveldes", "SF", "vegas", "veh_mods", "exported2" ];

targetTag = "inst";

outputLines = "";

for folder in folders:
	files = os.listdir(basePath + folder);
	filteredFiles = [file for file in files if file.endswith(".ipl")];
	
	for file in filteredFiles:
		fp = open(basePath + folder + "\\" + file, "r");
		
		print("[" + basePath + folder + "\\" + file + "]");
		
		tagActive = False;
		
		for line in fp:
			if line.startswith(targetTag) and tagActive == False:
				tagActive = True;
				continue;
			
			if tagActive == True:
				if line.startswith("end"):
					tagActive = False;
					continue;
				else:
					outputLines += line;
			
		fp.close();
		
fp = open(basePath + "output-" + targetTag + ".txt", "w+");
fp.write(outputLines);
fp.close();