chore(art): 主角像素样例三件留存——美术素材改走 ComfyUI 拍板批产物（第58条收口）

design/art/samples/generate_hero_sample.py

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+# -*- coding: utf-8 -*-
+"""
+主角站姿像素画样例生成器 — Dungeon Sweeper
+依据 design/art/art-bible.md:
+  - 小人蓝 #2E6E8E 主色(§4.1) / 亮色描边+落影底盘轮廓通道(§3.1)
+  - 3 头身候选档(§3.1 两档之一;终稿归 §5 角色批)
+  - 窄/直立/对称/凹凸≤2,剑收于剪影内(§3.1/§3.4)
+  - 不用红(危险专属)/金(收益专属)/紫赤 300-345° 禁入带(§4.2)
+输出: hero-standing-pose.png (1x) + hero-standing-pose-preview.png (8x 四联测试条)
+"""
+from PIL import Image, ImageOps
+
+PAL = {
+    'O': (255, 246, 224, 255),  # 亮色描边(暖白)
+    'b': (85, 144, 175, 255),   # 蓝高光(小人蓝同族)
+    'B': (46, 110, 142, 255),   # 小人蓝 §4.1
+    'd': (31, 74, 96, 255),     # 蓝暗部(同族)
+    'S': (242, 199, 156, 255),  # 肤色(暖)
+    's': (214, 159, 108, 255),  # 肤暗部
+    'E': (51, 38, 27, 255),     # 数字墨(眼) §4.1
+    'T': (138, 90, 52, 255),    # 皮革(木色族 §4.4)
+    't': (92, 58, 30, 255),     # 皮革暗部
+    'W': (183, 195, 203, 255),  # 剑-钢
+    'w': (132, 147, 157, 255),  # 剑-钢暗部
+    'G': (110, 91, 62, 255),    # 落影底盘(暖深)
+}
+
+# 左半 16 列(col 0..15),右半水平镜像;-figure 对称剪影
+LEFT = [
+    "................",  # 0
+    "................",  # 1
+    "................",  # 2
+    ".............OOO",  # 3  兜帽顶
+    "............OBBB",  # 4
+    "...........Obbbb",  # 5
+    "...........ObbBB",  # 6
+    "...........ObBBB",  # 7
+    "...........OSSSS",  # 8  额/脸顶(加宽脸窗)
+    "...........OSSES",  # 9
+    "...........OSSES",  # 10 眼(下移一档更亲和)
+    "...........OSSSS",  # 11
+    "...........OSsss",  # 12 下巴暗
+    "...........Odddd",  # 13 兜帽收底
+    "..........Oddddd",  # 14 肩起
+    "..........OdBBBB",  # 15 肩
+    "..........OdBbbB",  # 16 胸(中高光)
+    ".........OBBBbbB",  # 17 臂现
+    ".........OdTBbbB",  # 18 臂+背带
+    ".........OdTBbbB",  # 19
+    ".........OdTBbbB",  # 20
+    ".........OdTBbbB",  # 21
+    ".........OdTBbbB",  # 22
+    ".........OdTBbbB",  # 23
+    ".........OdTttTW",  # 24 腰带+扣(2px 居中)
+    ".........OdTttTW",  # 25
+    ".........OdTTTTt",  # 26 双手套握柄
+    ".........OddBBBt",  # 27 柄下
+    ".........OBBOWWW",  # 28 剑格
+    ".........OBBBBBW",  # 29 髋/剑身起
+    "..........OdBddW",  # 30 腿+剑
+    "..........OdBddW",  # 31
+    "..........OdBddW",  # 32
+    "..........OdBddW",  # 33
+    "..........OdBddW",  # 34
+    "..........OdBddW",  # 35
+    "..........OdBddW",  # 36
+    "..........OTTttW",  # 37 靴
+    "..........OTTttW",  # 38
+    "..........OTTttW",  # 39
+    "..........OTTttW",  # 40
+    "..........OttttW",  # 41 靴底
+    "..............OW",  # 42 剑尖
+    "................",  # 43
+    ".........GGGGGGG",  # 44 落影底盘
+    "...........GGGGG",  # 45
+    "................",  # 46
+    "................",  # 47
+]
+
+W, H = 32, 48
+grid = [['.'] * W for _ in range(H)]
+for y, lft in enumerate(LEFT):
+    for x, ch in enumerate(lft):
+        grid[y][x] = ch
+        grid[y][W - 1 - x] = ch
+
+# 剑身右侧 1px 暗部(col 16),避免完全对称的死平
+for y in range(29, 42):
+    if grid[y][15] == 'W':
+        grid[y][16] = 'w'
+
+
+def render(scale=1):
+    img = Image.new('RGBA', (W, H), (0, 0, 0, 0))
+    px = img.load()
+    for y in range(H):
+        for x in range(W):
+            c = PAL.get(grid[y][x])
+            if c:
+                px[x, y] = c
+    return img.resize((W * scale, H * scale), Image.NEAREST)
+
+
+def on_bg(img, color):
+    bg = Image.new('RGBA', img.size, color + (255,))
+    bg.alpha_composite(img)
+    return bg
+
+
+one_x = render(1)
+one_x.save('hero-standing-pose.png')
+
+# 测试条: 掩尘底 / 裸土底 / 暗底 / 灰度(轮廓通道验证)
+x8 = render(8)
+tiles = [
+    on_bg(x8, (201, 175, 131)),          # 掩尘 #C9AF83
+    on_bg(x8, (179, 154, 120)),          # 裸土 #B39A78
+    on_bg(x8, (46, 42, 38)),             # 暗底对照
+    ImageOps.grayscale(on_bg(x8, (201, 175, 131))).convert('RGBA'),
+]
+GAP = 24
+strip = Image.new('RGBA',
+                  (len(tiles) * x8.width + (len(tiles) + 1) * GAP, x8.height + 2 * GAP),
+                  (250, 244, 230, 255))
+for i, t in enumerate(tiles):
+    strip.alpha_composite(t, (GAP + i * (x8.width + GAP), GAP))
+strip.save('hero-standing-pose-preview.png')
+print('done:', one_x.size, '->', strip.size)