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dusk/tools/assetstool/processtileset.py
2025-08-25 10:16:55 -05:00

85 lines
3.0 KiB
Python

import sys, os
import xml.etree.ElementTree as ET
from assethelpers import getAssetRelativePath
from args import args
from constants import ASSET_FILE_NAME_MAX_LENGTH
from processimage import processPalette, processImage
def processTileset(assetPath):
# Process the tileset file
print(f"Processing tileset: {assetPath}")
# Load the tileset XML
tree = ET.parse(assetPath)
root = tree.getroot()
# Needs tilewidth, tileheight, tilecount and columns attributes
if not all(attr in root.attrib for attr in ['tilewidth', 'tileheight', 'tilecount', 'columns']):
print(f"Error: Tileset {assetPath} is missing required attributes.")
return
tilewidth = int(root.attrib.get('tilewidth', 0))
tileheight = int(root.attrib.get('tileheight', 0))
tilecount = int(root.attrib.get('tilecount', 0))
columns = int(root.attrib.get('columns', 0))
if tilewidth <= 0 or tileheight <= 0 or tilecount <= 0 or columns <= 0:
print(f"Error: Tileset {assetPath} has invalid attribute values.")
return
# Exactly one image element is required
imagesNode = root.findall('image')
if len(imagesNode) != 1:
print(f"Error: Tileset {assetPath} must have exactly one image element.")
return
imageNode = imagesNode[0]
if 'source' not in imageNode.attrib:
print(f"Error: Tileset {assetPath} is missing image source.")
return
imageSource = imageNode.attrib['source']
directory = os.path.dirname(assetPath)
image = processImage(os.path.join(directory, imageSource))
# Build
relativeFile = getAssetRelativePath(assetPath)
relativeDir = os.path.dirname(relativeFile)
data = "DTF" # Header for Dusk Tileset Format
# Write width (int32_t)
data += tilewidth.to_bytes(4, byteorder='little').decode('latin1')
# Write height (int32_t)
data += tileheight.to_bytes(4, byteorder='little').decode('latin1')
# Write tilecount (int32_t)
data += tilecount.to_bytes(4, byteorder='little').decode('latin1')
# Write column count (int32_t)
data += columns.to_bytes(4, byteorder='little').decode('latin1')
# Write row count (int32_t)
rows = (tilecount + columns - 1) // columns
data += rows.to_bytes(4, byteorder='little').decode('latin1')
# Write image source file name, padd to ASSET_FILE_NAME_MAX_LENGTH
imageSourceBytes = image["outputFile"].encode('utf-8')
data += len(imageSourceBytes).to_bytes(4, byteorder='little').decode('latin1')
data += imageSourceBytes.decode('latin1')
paddingLength = max(0, ASSET_FILE_NAME_MAX_LENGTH - len(imageSourceBytes))
data += '\x00' * paddingLength
# Write to output file
fileNameWithoutExt = os.path.splitext(os.path.basename(assetPath))[0]
outputFilePath = os.path.join(args.output_assets, relativeDir, f"{fileNameWithoutExt}.dtf")
os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
with open(outputFilePath, 'wb') as f:
f.write(data.encode('latin1'))
return {
"outputFile": os.path.relpath(outputFilePath, args.output_assets),
"tileWidth": tilewidth,
"tileHeight": tileheight,
"tileCount": tilecount,
"columns": columns,
"rows": rows,
"image": image
}