def background(input_path, palette_path=None):
palette_path = Palette.getGlobalPalettePath(input_path, palette_path)
global_palette = Palette.singlePalette(palette_path)
f = File.File(input_path)
local_palette = Palette.readSinglePalette(f)
palette = Palette.combinePalettes(local_palette, global_palette)
image = Image.Image(WIDTH, HEIGHT)
image.name = input_path.name + ".png"
n_pixels = WIDTH * HEIGHT
for pixel in range(n_pixels):
colour_index = f.readUInt8()
image.set(palette[colour_index], pixel)
return {
"name": input_path.name,
"image": image,
}
def sprite(sprite_path, background_path, palette_path=None):
palette_path = Palette.getGlobalPalettePath(sprite_path, palette_path)
global_palette = Palette.singlePalette(palette_path)
local_palette = Palette.singlePalette(background_path)
palette = Palette.combinePalettes(local_palette, global_palette)
f = File(sprite_path)
spr = {
"name": sprite_path.name,
"blocks": [],
"images": {},
}
block = _readBlockHeader(f)
assert (block["name"] == "SPRT")
assert (f.readUInt32() == 0x100)
eof = block["offset"] + block["length"]
block_offsets = []
while f.pos() < eof:
block = _readBlockHeader(f)
if block["name"] == "LIST":
block["entries"] = []
length = f.readUInt32()
for i in range(length):
offset = f.readUInt32()
block["entries"].append({"offset": block["offset"] + offset})
elif block["name"] == "SETF":
block["flag"] = f.readUInt32() # 0, 1, 2, 3 or 4
elif block["name"] == "POSN":
block["x"] = f.readUInt32()
block["y"] = f.readUInt32()
elif block["name"] == "COMP":
image = _readImage(f, block, palette)
offset = image.pop("offset")
block["image_offset"] = offset
if image["image"] is not None:
image["image"].name = _imageName(sprite_path, offset)
spr["images"][offset] = image
elif block["name"] == "TIME":
block["time"] = f.readUInt32()
elif block["name"] == "MARK":
pass
elif block["name"] == "MASK":
pass
elif block["name"] == "SCOM":
image = _readImage(f, block, palette)
offset = image.pop("offset")
block["image_offset"] = offset
if image["image"] is not None:
image["image"].name = _imageName(sprite_path, offset)
spr["images"][offset] = image
elif block["name"] == "RAND":
rand_extra = f.readUInt32()
block["min"] = f.readUInt32()
block["max"] = block["min"] + rand_extra
elif block["name"] == "JUMP":
block["index"] = f.readUInt32()
elif block["name"] == "RPOS":
block["dx"] = f.readSInt32()
block["dy"] = f.readSInt32()
elif block["name"] == "SNDF":
sound_volume = f.readUInt32() # 75, 95 or 100. volume?
assert (f.readUInt32() == 0)
sound_file = str(f.read(16))
block["volume"] = sound_volume
block["file"] = sound_file
elif block["name"] == "MPOS":
block["x"] = f.readUInt32()
block["y"] = f.readUInt32()
elif block["name"] == "PAUS":
pass
elif block["name"] == "EXIT":
pass
elif block["name"] == "STAT":
pass
elif block["name"] == "RGBP":
palette = Palette.readFullPalette(f)
else:
raise ValueError("Unknown block {} at {:#x}".format(
block["name"], block["start"]))
block_offsets.append(block["offset"])
block.pop("length") # we don't need this any more
spr["blocks"].append(block)
for block in spr["blocks"]:
if block["name"] == "LIST":
for entry in block["entries"]:
entry["index"] = block_offsets.index(entry["offset"])
return spr
