9a42e0eaf8
Chroma-key magenta -> alpha, autocrop, downscale (assets/process_sprites.py -> public/sprites/). GameScene loads image textures instead of drawing primitives: tiled darkened floor, crate walls, digger/poser/nerd/sound-guy/booth/pickup sprites. Bodies sized under the 32px sprites so corridors still fit. Mechanics verified unchanged (combat, trainspot, level flow). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
#!/usr/bin/env python3
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"""Turn the raw FLUX assets into game-ready textures in public/sprites/.
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Sprites (magenta #ff00ff background) get chroma-keyed to transparency, autocropped,
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and centered on a square canvas. Tiles (full-bleed textures) are just resized square.
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Output filename = the texture key GameScene.js loads.
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/opt/homebrew/bin/uv run --with pillow --with numpy python assets/process_sprites.py
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"""
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from pathlib import Path
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from PIL import Image
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import numpy as np
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HERE = Path(__file__).resolve().parent
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SRC = HERE / "generated"
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OUT = HERE.parent / "public" / "sprites"
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OUT.mkdir(parents=True, exist_ok=True)
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# game texture key -> (source file, size px, is_tile)
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TABLE = {
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"floor": ("floor_parquet.png", 64, True),
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"wall": ("wall_crate.png", 32, True),
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"player": ("player_digger.png", 32, False),
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"poser": ("enemy_poser.png", 32, False),
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"nerd": ("enemy_gearnerd.png", 32, False),
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"soundguy": ("enemy_soundguy.png", 32, False),
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"generator": ("gen_discount_bin.png", 32, False),
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"exit": ("prop_djbooth.png", 32, False),
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"door": ("prop_velvet_rope.png", 32, False),
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"espresso": ("pickup_espresso.png", 26, False),
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"lanyard": ("pickup_lanyard.png", 26, False),
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"airhorn": ("pickup_airhorn.png", 26, False),
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"vinyl": ("pickup_vinyl.png", 18, False),
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}
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def chroma_key(im):
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arr = np.array(im.convert("RGBA"))
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r, g, b = arr[..., 0].astype(int), arr[..., 1].astype(int), arr[..., 2].astype(int)
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# magenta: high red+blue, low green, red~=blue (catches the darker shadow halo too)
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mask = (r > 135) & (b > 135) & (g < 100) & (np.abs(r - b) < 70)
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arr[..., 3][mask] = 0
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return Image.fromarray(arr, "RGBA")
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for key, (fname, size, is_tile) in TABLE.items():
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im = Image.open(SRC / fname).convert("RGBA")
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if is_tile:
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im = im.resize((size, size), Image.LANCZOS)
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else:
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im = chroma_key(im)
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bbox = im.getbbox()
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if bbox:
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im = im.crop(bbox)
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im.thumbnail((size, size), Image.LANCZOS)
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canvas = Image.new("RGBA", (size, size), (0, 0, 0, 0))
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canvas.paste(im, ((size - im.width) // 2, (size - im.height) // 2), im)
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im = canvas
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im.save(OUT / f"{key}.png")
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print(f"{key:10s} <- {fname:24s} {size}px {'tile' if is_tile else 'keyed'}")
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print(f"\nwrote {len(TABLE)} textures to {OUT}")
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