Palette loading done.

tools/assetstool/processimage.py

@@ -1,6 +1,7 @@
 import os
 from args import args
 from PIL import Image
+import struct
 
 def extractPaletteFromImage(image):
   # goes through and finds all unique colors in the image
@@ -14,19 +15,14 @@ def extractPaletteFromImage(image):
   return uniqueColors
 
 def savePalette(pixels, outputFilePath):
-  # Pixels is a list of (R, G, B, A) tuples
-  data = "DPF"  # Header for Dusk Palette Format
-
-  # Count of colors (int32_t)
   colorCount = len(pixels)
-  data += colorCount.to_bytes(4, byteorder='little').decode('latin1')
-
-  for r, g, b, a in pixels:
-    data += bytes([r, g, b, a]).decode('latin1')
-
+  buf = bytearray(b"DPF")
+  buf += struct.pack("<i", colorCount)           # little-endian int32_t
+  for r, g, b, a in pixels:                      # each channel 0..255
+    buf += struct.pack("BBBB", r, g, b, a)     # raw bytes
   os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
-  with open(outputFilePath, 'wb') as f:
-    f.write(data.encode('latin1'))
+  with open(outputFilePath, "wb") as f:
+    f.write(buf)
 
 def processPalette(assetPath):
   # Process the image file