Pixel Art Generator

Pixel Art Generator

Generate pixel-style game assets using generate_image and batch_generate_images tools.

Workflow

1. Determine asset type (character / item / scene / tile / UI / animation)
2. Determine pixel size based on game style — see references/size-guide.md
3. Build prompt from templates — see references/prompt-templates.md
4. Call generate_image (single) or batch_generate_images (batch/animation frames)

Quick Reference

Prompt Construction

Every prompt follows: {style prefix},{asset description},{view/pose}

Style prefix (always include): 像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿

Add 透明背景 for characters/items. Omit for scene backgrounds.

Common Sizes

Tool Call Examples

Single character:

generate_image(
  prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,手持长剑的骑士,银色铠甲,蓝色披风,侧面朝右,全身像",
  name="knight",
  target_size="64x64",
  aspect_ratio="1:1",
  transparent=true
)

Batch item icons:

batch_generate_images(images=[
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,游戏道具图标,红色生命药水瓶,玻璃瓶,红色液体,木塞", name="potion_hp", target_size="32x32", transparent=true },
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,游戏道具图标,蓝色魔法药水瓶,玻璃瓶,蓝色液体发光", name="potion_mp", target_size="32x32", transparent=true },
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,游戏道具图标,金币,圆形,金色光泽", name="coin", target_size="32x32", transparent=true },
])

Walk animation (4 frames, use same seed):

batch_generate_images(images=[
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,手持长剑的骑士,银色铠甲,侧面朝右,站立姿势,双脚并拢", name="knight_walk_1", target_size="48x64", aspect_ratio="3:4", transparent=true, seed=42 },
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,手持长剑的骑士,银色铠甲,侧面朝右,行走姿势,左腿向前迈出,右腿在后", name="knight_walk_2", target_size="48x64", aspect_ratio="3:4", transparent=true, seed=42 },
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,手持长剑的骑士,银色铠甲,侧面朝右,行走姿势,双腿交叉中间过渡", name="knight_walk_3", target_size="48x64", aspect_ratio="3:4", transparent=true, seed=42 },
  { prompt="像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿,透明背景,手持长剑的骑士,银色铠甲,侧面朝右,行走姿势,右腿向前迈出,左腿在后", name="knight_walk_4", target_size="48x64", aspect_ratio="3:4", transparent=true, seed=42 },
])

Decision Guide

User request
  |
  ├─ "生成角色" → character sprite
  │   ├─ 需要动画? → batch_generate_images (多帧, 同 seed)
  │   └─ 单张? → generate_image (transparent=true)
  │
  ├─ "生成道具/武器/装备" → item icon
  │   ├─ 多个道具? → batch_generate_images
  │   └─ 单个? → generate_image (transparent=true)
  │
  ├─ "生成场景/背景" → scene background
  │   ├─ 横版? → aspect_ratio="16:9", transparent=false
  │   └─ 竖版? → aspect_ratio="9:16", transparent=false
  │
  ├─ "生成地块/Tile" → tile asset
  │   └─ generate_image (1:1, transparent=false)
  │
  └─ "生成UI" → UI element
      └─ generate_image (transparent=true)

Key Rules

1. Prompt language: Always use Chinese prompts — the image generation API optimized for Chinese input.
2. Style prefix is mandatory: Every prompt must start with 像素风格,pixel art,复古游戏风格,清晰像素边缘,无抗锯齿.
3. Animation consistency: Use the same seed across all frames of one animation sequence. Keep the character description identical, only change pose/action.
4. Small sizes need emphasis: For 16x16 targets, add 低像素数,粗大像素块,清晰方形像素 to prompt.
5. Transparent backgrounds: Characters and items need transparent=true. Scenes and tiles do not.
6. Batch for efficiency: Use batch_generate_images when generating 2+ related assets.
7. Naming convention: Use {type}_{variant} format, e.g. knight_walk_1, potion_hp, bg_forest.

References

• Prompt templates: references/prompt-templates.md — full prompt patterns for all asset types
• Size guide: references/size-guide.md — pixel sizes, aspect ratios, and game style recommendations