为什么值得关注

它把美术生成重新定义为程序合成：精灵由函数构建，动画是骨骼蒙皮加程序化绘制的木偶系统，并通过无头审计保证风格一致性，而非依赖采样或人工修图。

适合谁使用

探索程序化或代码驱动美术管线的游戏开发者
对技术动画和像素画工作流感兴趣的 Godot 用户
技术美术与工具开发者
研究提示驱动或程序化生成机制的开发者

典型使用场景

生成角色精灵表和动画剪辑，保持脸部、配色与比例一致
通过修改一个调色板文件即可重绘整个角色或全部角色
用自动化无头检查强制像素画风格规则
从代码确定性重新生成演示 GIF 和视频

项目优势

所有资源都是脚本，编辑是可审查的 diff，而不是重新生成图像
一致性是结构性的：每一帧都由相同函数绘制，避免风格漂移
风格规则由无头审计自动检查，质量可测试
README 中的媒体都可从代码重新生成

使用前须知

需要 Godot 4.6+，依赖特定引擎版本
项目仍是实验性质，目前处于动画原型阶段，只围绕一个主角
采用此管线意味着接受以代码为中心的美术流程，并需要学习 Ink & Bones 系统

README 快速开始

CyNinja

An experiment in prompt-driven graphics: a pixel-art character — a half-robot cyborg ninja — whose every sprite and animation frame is constructed by code, not drawn by hand and not generated by a diffusion model. The prompts produce programs that produce the art.

640×360, integer scaling, nearest-neighbour — a 2D side-scroller viewport.

Why programs instead of diffusion

Image generators are good at one-off pictures and bad at the same character, again. A sprite sheet needs the identical face, palette, and proportions across dozens of frames, two facings, and two lighting themes — exactly where sampling noise, style drift, and anatomy glitches show up. This repo takes the other road:

Every asset is a script. art//*.gd files extend PixelAsset and draw into an Image pixel by pixel in build(). There are no authored image files in the repo at all.
Consistency is structural, not statistical. The character's face is the same in frame 30 as in frame 1 because it is the same function. Colors can never drift because every pixel comes from art/palette.gd — retheming the entire cast means editing that one file and rerunning the same code.
Edits are diffs, not regenerations. "Make the scarf longer" is a one-line change that alters nothing else, reviewable in version control like any other code.
Quality is testable. Because art is code, style rules (outline law, color-ramp discipline, no single-pixel noise) are enforced by headless audits rather than by eye alone.

The current phase is animation prototyping: the deliverables are the protagonist's motion clips and a recorded showcase.

How the animation works — "Ink & Bones"

Hand-keying pixel sprites frame by frame has the same drift problem as diffusion, just slower. Instead, a character is a puppet compiled to sprite frames (docs/ANIMATION.md is the full reference):

The five clips — idle, run, dash, jump, slash — baked from one rig and one paint pass. None of these frames exists as an authored image.

Skeleton (art/skeleton.gd) — a bone hierarchy with float angles, two-bone IK for the legs (author where the foot goes, the knee falls out), and verlet chains for cloth (scarf, headband tails).
Paint (art/paint.gd) — each body part is painted once, procedurally, in its bone's local

项目描述

Demo code for prompting a generative cybernetic ninja using Claude code.

cyninja-prompt-demo