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https://github.com/jkdansereau/goldeneye-pc-port.git
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213 lines
8.4 KiB
Python
213 lines
8.4 KiB
Python
#!/usr/bin/env python3
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"""Generate the project's own icon (original art).
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The mark is an ORIGINAL generic version of the GE default aim crosshair:
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a circle with four lines (N/S/E/W) crossing the circle's edge and
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extending well past it, open at the centre. Proportions are measured from
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the game's own default crosshair (thin ring, long bars, open centre).
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Drawn on a small pixel grid (32x32 master, hand-tuned 16/24) and scaled
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with NEAREST, in the in-game sight red (core RGB 200,40,48; lighter edge
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texels 225,120,130) on near-black (#050607). No glow/gradients/blur.
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A circle-plus-ticks reticle is a generic functional shape (no logo art,
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wordmark or screenshot copied, cf. tree-hygiene rule 4: repo imagery
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must not be derivative game content).
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Outputs (all regenerated byte-identically; deterministic):
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docs/img/icon/ge007-icon.png 512x512 favicon / README icon
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cmake/icon/ge007.ico multi-size Windows exe icon (16..256)
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docs/favicon.ico byte copy of ge007.ico (site favicon)
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port/fast3d/ge007_icon.h 32x32 RGBA array for the SDL window icon
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(SDL_SetWindowIcon, see gfx_sdl2.cpp)
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Usage:
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python tools_pc/make_icon.py # write all three
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python tools_pc/make_icon.py --check # exit 1 if any output is missing,
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# or the mark is not exactly centred
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Requires Pillow (>=10.1, for load_default(size)).
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"""
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from __future__ import annotations
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import io
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import struct
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import sys
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from pathlib import Path
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try:
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from PIL import Image, ImageDraw
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except ImportError:
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sys.exit("Pillow is required: pip install Pillow")
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ROOT = Path(__file__).resolve().parent.parent
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OUT_ICON = ROOT / "docs" / "img" / "icon" / "ge007-icon.png"
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OUT_ICO = ROOT / "cmake" / "icon" / "ge007.ico"
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OUT_HEADER = ROOT / "port" / "fast3d" / "ge007_icon.h"
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OUT_FAVICON = ROOT / "docs" / "favicon.ico"
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# --- palette -----------------------------------------------------------------
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BG = (5, 6, 7) # site near-black
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RED = (200, 40, 48) # in-game sight red (core texels)
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RED_EDGE = (225, 120, 130) # lighter AA-edge texel tint
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# pixel-grid parameters per master grid size N:
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# (ring radius, ring half-band, bar width (even), gap radius, reach radius)
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# radii are in pixels from the exact centre (N/2 - 0.5 is the centre pixel
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# coordinate, so every shape is mirror-symmetric by construction).
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_GRIDS = {
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16: (4.6, 0.6, 2, 2.0, 7.5),
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24: (6.6, 0.55, 2, 3.0, 11.5),
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32: (9.2, 0.55, 2, 4.0, 14.5),
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}
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def _master(n: int) -> Image.Image:
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"""Hand-tuned low-res mark on an n x n pixel grid (no anti-aliasing:
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hard pixels in the sight's red, the outermost bar texel and ring
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corners get the lighter edge tint like the sprite's AA texels)."""
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ring_r, band, bar_w, gap, reach = _GRIDS[n]
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img = Image.new("RGBA", (n, n), BG + (255,))
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px = img.load()
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c = (n - 1) / 2.0
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hw = bar_w / 2.0
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for y in range(n):
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for x in range(n):
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dx, dy = abs(x - c), abs(y - c)
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d = (dx * dx + dy * dy) ** 0.5
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col = None
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if abs(d - ring_r) <= band:
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col = RED
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# bars: |perp| < hw, along-axis distance in [gap, reach]
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for along, perp in ((dx, dy), (dy, dx)):
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if perp < hw and gap <= along <= reach:
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col = RED_EDGE if along > reach - 1 else RED
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if col is not None:
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px[x, y] = col + (255,)
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return img
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def _crosshair(size: int, small: bool = False) -> Image.Image:
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"""Retro red crosshair: the 16/24/32 hand-tuned grids are used 1:1 for
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the small slots; everything else is the 32 master (24 for 48px) scaled with NEAREST
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(hard pixel edges)."""
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if small and size in (16, 24, 32):
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return _master(size)
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# integer pixel scale only (48 = 2x the 24 grid) keeps pixels square
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# and the mark exactly centred.
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grid = 24 if size == 48 else 32
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return _master(grid).resize((size, size), Image.NEAREST)
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def _symmetric(img: Image.Image) -> bool:
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"""Pixel-exact left-right and top-bottom mirror symmetry: the mark is
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exactly centred at this size. (Not the diagonal: LANCZOS resamples the
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two axes in a fixed order, so a transpose differs by rounding only.)"""
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return (img.tobytes() == img.transpose(Image.FLIP_LEFT_RIGHT).tobytes()
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and img.tobytes() == img.transpose(Image.FLIP_TOP_BOTTOM).tobytes())
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def _asymmetric_sizes() -> list:
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sizes = [(512, False), (16, True), (24, True), (32, True),
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(48, False), (64, False), (128, False), (256, False)]
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return [f"{s}{' (small)' if sm else ''}" for s, sm in sizes
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if not _symmetric(_crosshair(s, small=sm))]
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def _ico_png(size: int, small: bool) -> bytes:
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buf = io.BytesIO()
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_crosshair(size, small=small).save(buf, format="PNG")
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return buf.getvalue()
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def make_ico() -> None:
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_crosshair(512).save(OUT_ICON)
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# Multi-size .ico with PNG-compressed entries (Vista+ style; what the
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# 256 slot always is). Small sizes get the chunky variant so the mark
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# survives 16px; a single 512-master downsample washes out there.
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entries = [(_ico_png(s, small=True), s) for s in (16, 24, 32)]
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entries += [(_ico_png(s, small=False), s) for s in (48, 64, 128, 256)]
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n = len(entries)
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offset = 6 + 16 * n
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dirs, data = b"", b""
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for png, s in entries:
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wh = 0 if s == 256 else s # 0 means 256 in the ICO format
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dirs += struct.pack("<BBBBHHII", wh, wh, 0, 0, 1, 32,
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len(png), offset)
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offset += len(png)
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data += png
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OUT_ICO.write_bytes(struct.pack("<HHH", 0, 1, n) + dirs + data)
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OUT_FAVICON.write_bytes(OUT_ICO.read_bytes()) # site favicon = exe icon
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def make_header() -> None:
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"""Emit the 32x32 RGBA array for the SDL window icon (gfx_sdl2.cpp).
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Byte order is plain R,G,B,A per pixel (portable; the C++ side packs
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it against explicit masks).
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NOTE: this output is C, and CMake compiles it inside gfx_sdl2.cpp's
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include — it is NOT independently syntax-checked by this script. Keep
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it trivially valid (see the row-brace comment below; a flat cell list
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without row braces is ill-formed for a 3-D array)."""
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img = _crosshair(32, small=True).convert("RGBA")
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px = img.load()
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rows = []
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for y in range(32):
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row = []
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for x in range(32):
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r, g, b, a = px[x, y]
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row.append(f"{{{r:3d},{g:3d},{b:3d},{a:3d}}}")
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# Row braces are REQUIRED: without them all 1024 cells sit at the
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# top level of the [32][32][4] initializer (1024 > first dim 32 ->
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# "too many initializers").
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rows.append(" {" + ",".join(row) + "}")
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with open(OUT_HEADER, "w", newline="\n") as fh:
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fh.write(
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"/* Generated by tools_pc/make_icon.py -- do not edit by hand.\n"
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" * The project mark (a generic version of the GE default aim\n"
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" * crosshair) as a 32x32 RGBA array, row-major, plain R,G,B,A\n"
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" * byte order per pixel; used by gfx_sdl2.cpp for\n"
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" * SDL_SetWindowIcon. Regenerate: python tools_pc/make_icon.py */\n"
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"#ifndef GE007_ICON_H\n"
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"#define GE007_ICON_H\n"
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"\n"
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"#include <stdint.h>\n"
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"\n"
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"#define GE007_ICON_SIZE 32\n"
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"static const uint8_t ge007_icon_rgba[GE007_ICON_SIZE]"
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"[GE007_ICON_SIZE][4] = {\n"
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+ ",\n".join(rows) + "\n};\n"
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"#endif /* GE007_ICON_H */\n"
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)
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def main() -> int:
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args = sys.argv[1:]
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check = "--check" in args
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for p in (OUT_ICON.parent, OUT_ICO.parent, OUT_HEADER.parent):
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p.mkdir(parents=True, exist_ok=True)
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bad = _asymmetric_sizes()
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if bad:
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print("icon is not exactly centred (mirror-asymmetric) at: " + ", ".join(bad))
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return 1
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if not check:
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make_ico()
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make_header()
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print(f"wrote {OUT_ICON.relative_to(ROOT)}")
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print(f"wrote {OUT_ICO.relative_to(ROOT)}")
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print(f"wrote {OUT_FAVICON.relative_to(ROOT)}")
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print(f"wrote {OUT_HEADER.relative_to(ROOT)}")
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return 0
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stale = [p for p in (OUT_ICON, OUT_ICO, OUT_HEADER, OUT_FAVICON) if not p.exists()]
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if stale:
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for p in stale:
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print(f"stale/missing: {p.relative_to(ROOT)}")
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return 1
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print("ok (all icon outputs present and mirror-symmetric at every size; "
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"regenerate with: python tools_pc/make_icon.py)")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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