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133 lines
4.3 KiB
Python
Executable File
133 lines
4.3 KiB
Python
Executable File
#! /usr/bin/python3
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from math import floor, ceil
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from sys import argv, path
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from pathlib import Path
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path.append(str(Path(__file__).parent.parent.parent / "splat"))
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path.append(str(Path(__file__).parent.parent.parent / "splat_ext"))
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from pm_npc_sprites import Sprite
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def pack_color(r, g, b, a):
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r = floor(31 * (r / 255))
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g = floor(31 * (g / 255))
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b = floor(31 * (b / 255))
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s = round(a / 0xFF)
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s |= (r & 0x1F) << 11
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s |= (g & 0x1F) << 6
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s |= (b & 0x1F) << 1
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return s
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def iter_in_groups(iterable, n, fillvalue=None):
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from itertools import zip_longest
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args = [iter(iterable)] * n
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return zip_longest(*args, fillvalue=fillvalue)
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if __name__ == "__main__":
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if len(argv) != 3:
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print("usage: compile_npc_sprite.py [OUTBIN] [DIR]")
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exit(1)
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_, outfile, sprite_dir = argv
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try:
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sprite = Sprite.from_dir(Path(sprite_dir))
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except AssertionError as e:
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print("error:", e)
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exit(1)
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with open(outfile, "wb") as f:
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f.seek(0x10) # leave space for header
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# leave space for animation offset list
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f.seek((len(sprite.animations) + 1) * 4, 1)
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animation_offsets = []
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# write animations
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for i, components in enumerate(sprite.animations):
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animation_offsets.append(f.tell())
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# leave space for component offset list
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f.seek((len(components) + 1) * 4, 1)
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component_offsets = []
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for comp in components:
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offset = f.tell()
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for command in comp.commands:
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f.write(command.to_bytes(2, byteorder="big"))
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f.seek(f.tell() % 4, 1)
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component_offsets.append(f.tell())
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f.write(offset.to_bytes(4, byteorder="big"))
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f.write((len(comp.commands) * 2).to_bytes(2, byteorder="big"))
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f.write(comp.x.to_bytes(2, byteorder="big", signed=True))
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f.write(comp.y.to_bytes(2, byteorder="big", signed=True))
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f.write(comp.z.to_bytes(2, byteorder="big", signed=True))
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next_anim = f.tell()
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# write component offset list
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f.seek(animation_offsets[i])
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component_offsets.append(-1)
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for offset in component_offsets:
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f.write(offset.to_bytes(4, byteorder="big", signed=True))
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f.seek(next_anim)
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# palettes start 8-byte aligned
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if (f.tell() & 7) == 4:
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f.seek(4, 1)
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# write palettes
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palette_offsets = []
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for i, palette in enumerate(sprite.palettes):
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palette_offsets.append(f.tell())
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for rgba in palette:
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if rgba[3] not in (0, 0xFF):
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print("error: translucent pixels not allowed in palette {sprite.palette_names[i]}")
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exit(1)
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color = pack_color(*rgba)
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f.write(color.to_bytes(2, byteorder="big"))
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# write images/rasters
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image_offsets = []
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for image in sprite.images:
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offset = f.tell()
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for a, b in iter_in_groups(image.raster, 2):
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byte = (a << 4) | b
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f.write(byte.to_bytes(1, byteorder="big"))
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image_offsets.append(f.tell())
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f.write(offset.to_bytes(4, byteorder="big"))
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f.write(bytes([image.width, image.height, image.palette_index, 0xFF]))
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# write image offset list
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image_offset_list_offset = f.tell()
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image_offsets.append(-1)
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for offset in image_offsets:
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f.write(offset.to_bytes(4, byteorder="big", signed=True))
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# write palette offset list
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palette_offset_list_offset = f.tell()
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palette_offsets.append(-1)
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for offset in palette_offsets:
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f.write(offset.to_bytes(4, byteorder="big", signed=True))
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# write header
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f.seek(0)
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f.write(image_offset_list_offset.to_bytes(4, byteorder="big"))
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f.write(palette_offset_list_offset.to_bytes(4, byteorder="big"))
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f.write(sprite.max_components.to_bytes(4, byteorder="big"))
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f.write(sprite.num_variations.to_bytes(4, byteorder="big"))
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# write animation offset list
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animation_offsets.append(-1)
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for offset in animation_offsets:
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f.write(offset.to_bytes(4, byteorder="big", signed=True))
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