humanoid-chibi.js
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// humanoid-chibi.js — 分件人形「大头 chibi」骨架（RigDefinition）。
// 移植自旧原型 client/js/stage/rig/humanoid-chibi.js（注册名 humanoid_parts，全角色实际使用的就是它）。
//
// 与 humanoid_v1 的关键差异：这是按真实角色立绘（worker/lady 等，画布 454×750）调好骨距的骨架——
// neck 距 torso -273、head -30、face -120、upper_arm 85/-235、shin 间距 130。worker/lady 的部件对齐
// 数值（anchor/bonePos/scale）全部按本骨架的 setup-pose 调出，故角色必须绑本骨架而非 humanoid_v1，
// 否则骨距不符会把身体压扁、头显得过大（实测过的坑）。
//
// 坐标系：+y 向下，角度「度」；root 在双脚之间贴地（y=0），身体向上为负 y。bones 顺序父先于子。
/** @type {import('../types.js').RigDefinition} */
export const HUMANOID_CHIBI = {
id: 'humanoid_parts',
// rig 设计基准画布（部件图按此坐标系/尺度出图）。
canvas: { width: 454, height: 750 },
groundY: 0,
bones: [
{ name: 'root', parent: null, pos: { x: 0, y: 0 }, rotation: 0 },
{ name: 'hip', parent: 'root', pos: { x: 0, y: -244 }, rotation: 0 },
{ name: 'torso', parent: 'hip', pos: { x: 0, y: 0 }, rotation: 0 },
{ name: 'neck', parent: 'torso', pos: { x: 0, y: -273 }, rotation: 0 },
{ name: 'head', parent: 'neck', pos: { x: 0, y: -30 }, rotation: 0 },
// 表情子骨骼：挂在头下，跟随头一起动；表情图（眼/嘴）叠在脸区。
{ name: 'face', parent: 'head', pos: { x: 0, y: -120 }, rotation: 0 },
{ name: 'upper_arm_l', parent: 'torso', pos: { x: 85, y: -235 }, rotation: 4 },
{ name: 'lower_arm_l', parent: 'upper_arm_l', pos: { x: 0, y: 120 }, rotation: 0 },
{ name: 'upper_arm_r', parent: 'torso', pos: { x: -85, y: -235 }, rotation: -4 },
{ name: 'lower_arm_r', parent: 'upper_arm_r', pos: { x: 0, y: 120 }, rotation: 0 },
{ name: 'thigh_l', parent: 'hip', pos: { x: 30, y: 0 }, rotation: 0 },
{ name: 'shin_l', parent: 'thigh_l', pos: { x: 0, y: 130 }, rotation: 0 },
{ name: 'thigh_r', parent: 'hip', pos: { x: -30, y: 0 }, rotation: 0 },
{ name: 'shin_r', parent: 'thigh_r', pos: { x: 0, y: 130 }, rotation: 0 },
],
// z-order（低=靠后）。右臂/右腿在身后，左臂/左腿在身前。
slots: [
{ name: 'upper_arm_r', bone: 'upper_arm_r', zOrder: 2 },
{ name: 'lower_arm_r', bone: 'lower_arm_r', zOrder: 3 },
{ name: 'thigh_r', bone: 'thigh_r', zOrder: 4 },
{ name: 'shin_r', bone: 'shin_r', zOrder: 5 },
{ name: 'thigh_l', bone: 'thigh_l', zOrder: 6 },
{ name: 'shin_l', bone: 'shin_l', zOrder: 7 },
{ name: 'hip', bone: 'hip', zOrder: 9 },
{ name: 'torso', bone: 'torso', zOrder: 10 },
{ name: 'neck', bone: 'neck', zOrder: 11 },
{ name: 'head', bone: 'head', zOrder: 20 },
{ name: 'face', bone: 'face', zOrder: 25 },
{ name: 'upper_arm_l', bone: 'upper_arm_l', zOrder: 30 },
{ name: 'lower_arm_l', bone: 'lower_arm_l', zOrder: 31 },
],
}