bible-strong-avatar-lab/src/body.ts
2026-08-13 18:31:27 +02:00

118 lines
4.0 KiB
TypeScript

import { surfaceLabels, surfacePresets, type SurfaceConfig, type SurfaceType } from './surfaces'
export type BodyVector = readonly [number, number, number]
export type BodyNode = {
id: string
name: string
surface: SurfaceConfig
position: BodyVector
rotation: BodyVector
}
export type AvatarBody = {
primary: SurfaceConfig
nodes: BodyNode[]
}
export const bodyPrimitiveTypes = [
'sphere',
'cube',
'capsule',
'cylinder',
'cone',
'diamond',
] as const
export const MAX_BODY_NODES = 16
const allSurfaceTypes = Object.keys(surfacePresets) as SurfaceType[]
const finite = (value: unknown): value is number =>
typeof value === 'number' && Number.isFinite(value)
const vector = (value: unknown): value is BodyVector =>
Array.isArray(value) && value.length === 3 && value.every(finite)
export const parseSurfaceConfig = (value: unknown, fallback: SurfaceConfig): SurfaceConfig => {
if (!value || typeof value !== 'object') return { ...fallback }
const candidate = value as Partial<SurfaceConfig>
const type =
candidate.type && allSurfaceTypes.includes(candidate.type) ? candidate.type : fallback.type
const preset = surfacePresets[type]
const numericFields = ['width', 'height', 'depth', 'roundness'] as const
if (numericFields.some(field => !finite(candidate[field]))) return { ...fallback }
if (candidate.morphRoundness !== undefined && !finite(candidate.morphRoundness))
return { ...fallback }
if (candidate.tipRoundness !== undefined && !finite(candidate.tipRoundness))
return { ...fallback }
if (candidate.baseRoundness !== undefined && !finite(candidate.baseRoundness))
return { ...fallback }
return { ...preset, ...candidate, type }
}
export const parseAvatarBody = (value: unknown, fallbackPrimary: SurfaceConfig): AvatarBody => {
if (!value || typeof value !== 'object') return { primary: fallbackPrimary, nodes: [] }
const candidate = value as Partial<AvatarBody>
const primary = parseSurfaceConfig(candidate.primary, fallbackPrimary)
const seenIds = new Set<string>()
const nodes = Array.isArray(candidate.nodes)
? candidate.nodes
.filter((node): node is BodyNode => {
if (!node || typeof node !== 'object') return false
const surface = (node as BodyNode).surface
const id = (node as BodyNode).id
if (id === 'primary' || seenIds.has(id)) return false
const valid = Boolean(
typeof (node as BodyNode).id === 'string' &&
id &&
typeof (node as BodyNode).name === 'string' &&
surface &&
bodyPrimitiveTypes.includes(surface.type as (typeof bodyPrimitiveTypes)[number]) &&
finite(surface.width) &&
finite(surface.height) &&
finite(surface.depth) &&
finite(surface.roundness) &&
vector((node as BodyNode).position) &&
vector((node as BodyNode).rotation)
)
if (valid) seenIds.add(id)
return valid
})
.slice(0, MAX_BODY_NODES)
.map(node => ({
...node,
surface: parseSurfaceConfig(node.surface, surfacePresets[node.surface.type]),
}))
: []
return { primary, nodes }
}
export const createBodyNode = (
type: (typeof bodyPrimitiveTypes)[number],
index: number
): BodyNode => {
const preset = surfacePresets[type]
const scale = 0.34
const side = index % 2 === 0 ? -1 : 1
return {
id: `shape-${crypto.randomUUID()}`,
name: `${surfaceLabels[type]} ${index + 1}`,
surface: {
...preset,
width: preset.width * scale,
height: preset.height * scale,
depth: preset.depth * scale,
},
position: [side * 82, -72, -18],
rotation: [0, 0, 0],
}
}
export const duplicateBodyNode = (source: BodyNode): BodyNode => ({
...source,
id: `shape-${crypto.randomUUID()}`,
name: `${source.name} copie`,
surface: { ...source.surface },
position: [source.position[0] + 14, source.position[1] + 14, source.position[2]],
rotation: [...source.rotation],
})