Feat/stairs fence update (#226)
* feat: railing on the straight stairs and new fence * feat: added spiral and curved stairs with bug fix for fence * feat:fence are linked to each other ... so moving one move the other sharing the same coordinate * fix: update stair railing logic to include front-side attachments for terminal landings * Integrate fence rendering into the fence system * fix: pass nodeId instead of undefined node to WallTreeNode and FenceTreeNode TreeNode was passing `node` (undefined variable) instead of `nodeId` to WallTreeNode and FenceTreeNode, causing a runtime ReferenceError. Updated FenceTreeNode to accept nodeId and look up the node from the scene store internally, consistent with all other tree node components. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * feat: update fence icon with new isometric design Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: Aymeric Rabot <aymeric@pascal.app> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Sudhir Yadav
co-authored by
Claude Opus 4.6
Aymeric Rabot
Claude Opus 4.6
Aymeric Rabot
parent
682e2a1a12
commit
a205e4f778
@@ -1,10 +1,40 @@
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import { type StairNode, useRegistry, useScene } from '@pascal-app/core'
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import { type AnyNodeId, type StairNode, type StairSegmentNode, useRegistry, useScene } from '@pascal-app/core'
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import { useLayoutEffect, useMemo, useRef } from 'react'
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import type * as THREE from 'three'
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import * as THREE from 'three'
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import { useNodeEvents } from '../../../hooks/use-node-events'
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import { createMaterial, DEFAULT_STAIR_MATERIAL } from '../../../lib/materials'
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import { NodeRenderer } from '../node-renderer'
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type SegmentTransform = {
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position: [number, number, number]
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rotation: number
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}
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type StairRailPathSide = 'left' | 'right' | 'front'
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type StairRailSidePath = {
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side: StairRailPathSide
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points: [number, number, number][]
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}
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type StairSegmentRailPath = {
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layout: StairRailLayout
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sidePaths: StairRailSidePath[]
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connectFromPrevious: boolean
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}
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type StairRailLayout = {
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center: [number, number]
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elevation: number
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rotation: number
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segment: StairSegmentNode
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}
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type LandingChainNextStair = {
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nextStairLayout?: StairRailLayout
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isTerminalLandingBeforeStair: boolean
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}
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export const StairRenderer = ({ node }: { node: StairNode }) => {
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const ref = useRef<THREE.Group>(null!)
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@@ -34,6 +64,10 @@ export const StairRenderer = ({ node }: { node: StairNode }) => {
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<mesh castShadow material={material} name="merged-stair" receiveShadow>
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<boxGeometry args={[0, 0, 0]} />
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</mesh>
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{node.stairType === 'curved' || node.stairType === 'spiral' ? (
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<CurvedStairBody material={material} stair={node} />
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) : null}
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<StairRailings material={material} stair={node} />
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<group name="segments-wrapper" visible={false}>
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{(node.children ?? []).map((childId) => (
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<NodeRenderer key={childId} nodeId={childId} />
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@@ -42,3 +76,764 @@ export const StairRenderer = ({ node }: { node: StairNode }) => {
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</group>
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)
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}
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function StairRailings({ stair, material }: { stair: StairNode; material: THREE.Material }) {
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const nodes = useScene((state) => state.nodes)
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const segments = useMemo(
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() =>
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(stair.children ?? [])
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.map((childId) => nodes[childId as AnyNodeId] as StairSegmentNode | undefined)
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.filter((node): node is StairSegmentNode => node?.type === 'stair-segment' && node.visible !== false),
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[nodes, stair.children],
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)
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const railPaths = useMemo(() => buildStairRailPaths(segments, stair.railingMode ?? 'none'), [segments, stair.railingMode])
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const railHeight = stair.railingHeight ?? 0.92
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const midRailHeight = Math.max(railHeight * 0.45, 0.35)
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const railRadius = 0.022
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const balusterRadius = 0.018
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if ((stair.railingMode ?? 'none') === 'none') {
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return null
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}
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if (stair.stairType === 'curved' || stair.stairType === 'spiral') {
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const stepCount = Math.max(2, Math.round(stair.stepCount ?? 10))
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const sweepAngle = stair.sweepAngle ?? (stair.stairType === 'spiral' ? Math.PI * 2 : Math.PI / 2)
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const stepSweep = sweepAngle / stepCount
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const stepHeight = Math.max(stair.totalRise ?? 2.5, 0.1) / stepCount
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const innerRadius = Math.max(stair.stairType === 'spiral' ? 0.05 : 0.2, stair.innerRadius ?? 0.9)
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const outerRadius = innerRadius + Math.max(stair.width ?? 1, 0.4)
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const leftRadius = sweepAngle >= 0 ? innerRadius + 0.04 : outerRadius - 0.04
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const rightRadius = sweepAngle >= 0 ? outerRadius - 0.04 : innerRadius + 0.04
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const radii =
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stair.railingMode === 'both'
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? [leftRadius, rightRadius]
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: stair.railingMode === 'left'
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? [leftRadius]
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: stair.railingMode === 'right'
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? [rightRadius]
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: []
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return (
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<group name="stair-railing">
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{radii.map((radius, sideIndex) => {
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const sidePoints = Array.from({ length: stepCount }).map((_, index) => {
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const angle = -sweepAngle / 2 + stepSweep * index + stepSweep / 2
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return [
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Math.cos(angle) * radius,
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stair.stairType === 'spiral'
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? stepHeight * index + Math.max(stair.thickness ?? 0.25, 0.02)
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: stepHeight * (index + 1),
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Math.sin(angle) * radius,
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] as [number, number, number]
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})
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return (
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<group key={`${stair.id}-curved-railing-${sideIndex}`}>
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{sidePoints.map((point, pointIndex) => (
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<mesh
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castShadow
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geometry={BALUSTER_GEOMETRY}
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key={`${stair.id}-curved-baluster-${sideIndex}-${pointIndex}`}
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material={material}
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position={[point[0], point[1] + railHeight / 2, point[2]]}
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receiveShadow
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scale={[balusterRadius, railHeight, balusterRadius]}
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/>
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))}
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{sidePoints.slice(0, -1).map((point, pointIndex) => {
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const nextPoint = sidePoints[pointIndex + 1]
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if (!nextPoint) return null
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return (
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<group key={`${stair.id}-curved-rail-${sideIndex}-${pointIndex}`}>
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<RailSegment
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end={[nextPoint[0], nextPoint[1] + railHeight, nextPoint[2]]}
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material={material}
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radius={railRadius}
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start={[point[0], point[1] + railHeight, point[2]]}
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/>
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<RailSegment
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end={[nextPoint[0], nextPoint[1] + midRailHeight, nextPoint[2]]}
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material={material}
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radius={railRadius * 0.8}
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start={[point[0], point[1] + midRailHeight, point[2]]}
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/>
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</group>
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)
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})}
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</group>
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)
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})}
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</group>
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)
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}
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if (railPaths.length === 0) {
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return null
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}
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return (
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<group name="stair-railing">
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{railPaths.map((segmentPath, index) => (
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<group
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key={`${segmentPath.layout.segment.id}-railing`}
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position={[segmentPath.layout.center[0], segmentPath.layout.elevation, segmentPath.layout.center[1]]}
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rotation-y={segmentPath.layout.rotation}
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>
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{segmentPath.sidePaths.map((sidePath, sideIndex) => (
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<group key={`${segmentPath.layout.segment.id}-${sidePath.side}-${sideIndex}`}>
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{sidePath.points.map((point, pointIndex) => (
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<mesh
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castShadow
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geometry={BALUSTER_GEOMETRY}
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key={`${segmentPath.layout.segment.id}-${sidePath.side}-baluster-${pointIndex}`}
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material={material}
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position={[point[2], point[1] + railHeight / 2, point[0]]}
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receiveShadow
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scale={[balusterRadius, railHeight, balusterRadius]}
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/>
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))}
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{sidePath.points.slice(0, -1).map((point, pointIndex) => {
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const nextPoint = sidePath.points[pointIndex + 1]
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if (!nextPoint) return null
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return (
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<group key={`${segmentPath.layout.segment.id}-${sidePath.side}-rail-${pointIndex}`}>
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<RailSegment
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end={[nextPoint[2], nextPoint[1] + railHeight, nextPoint[0]]}
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material={material}
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radius={railRadius}
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start={[point[2], point[1] + railHeight, point[0]]}
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/>
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<RailSegment
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end={[nextPoint[2], nextPoint[1] + midRailHeight, nextPoint[0]]}
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material={material}
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radius={railRadius * 0.8}
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start={[point[2], point[1] + midRailHeight, point[0]]}
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/>
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</group>
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)
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})}
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</group>
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))}
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</group>
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))}
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{railPaths.slice(1).map((segmentPath, index) => {
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const previousPath = railPaths[index]
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if (!previousPath || !segmentPath.connectFromPrevious) return null
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if (previousPath.layout.segment.segmentType === 'landing') return null
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if (segmentPath.layout.segment.segmentType === 'landing') return null
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return segmentPath.sidePaths.map((sidePath, sideIndex) => {
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const currentPoint = sidePath.points[0]
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if (!currentPoint) return null
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const currentWorldPoint = toWorldRailPoint(segmentPath.layout, currentPoint)
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const previousSidePath = [...previousPath.sidePaths]
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.map((entry) => {
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const lastPoint = entry.points[entry.points.length - 1]
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return {
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entry,
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distance: lastPoint ? distance3(toWorldRailPoint(previousPath.layout, lastPoint), currentWorldPoint) : Number.POSITIVE_INFINITY,
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}
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})
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.sort((left, right) => left.distance - right.distance)[0]?.entry
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const previousPoint =
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previousSidePath && previousSidePath.points.length
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? previousSidePath.points[previousSidePath.points.length - 1]
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: null
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if (!(previousPoint && currentPoint)) {
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return null
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}
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const previousWorldPoint = toWorldRailPoint(previousPath.layout, previousPoint)
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return (
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<group key={`${previousPath.layout.segment.id}-${segmentPath.layout.segment.id}-${sideIndex}`}>
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<RailSegment
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end={[currentWorldPoint[0], currentWorldPoint[1] + railHeight, currentWorldPoint[2]]}
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material={material}
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radius={railRadius}
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start={[previousWorldPoint[0], previousWorldPoint[1] + railHeight, previousWorldPoint[2]]}
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/>
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<RailSegment
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end={[currentWorldPoint[0], currentWorldPoint[1] + midRailHeight, currentWorldPoint[2]]}
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material={material}
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radius={railRadius * 0.8}
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start={[previousWorldPoint[0], previousWorldPoint[1] + midRailHeight, previousWorldPoint[2]]}
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/>
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</group>
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)
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})
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})}
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</group>
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)
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}
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const BALUSTER_GEOMETRY = new THREE.CylinderGeometry(1, 1, 1, 8)
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const RAIL_GEOMETRY = new THREE.CylinderGeometry(1, 1, 1, 8)
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function RailSegment({
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start,
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end,
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radius,
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material,
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}: {
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start: [number, number, number]
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end: [number, number, number]
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radius: number
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material: THREE.Material
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}) {
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const startVector = useMemo(() => new THREE.Vector3(...start), [start])
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const endVector = useMemo(() => new THREE.Vector3(...end), [end])
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const direction = useMemo(() => endVector.clone().sub(startVector), [endVector, startVector])
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const length = Math.max(direction.length(), 0.01)
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const quaternion = useMemo(
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() => new THREE.Quaternion().setFromUnitVectors(new THREE.Vector3(0, 1, 0), direction.clone().normalize()),
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[direction],
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)
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const midpoint = useMemo(() => startVector.clone().add(endVector).multiplyScalar(0.5), [endVector, startVector])
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return (
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<mesh
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castShadow
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geometry={RAIL_GEOMETRY}
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material={material}
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position={[midpoint.x, midpoint.y, midpoint.z]}
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quaternion={quaternion}
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receiveShadow
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scale={[Math.max(radius, 0.01), length, Math.max(radius, 0.01)]}
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/>
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)
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}
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function CurvedStairBody({ stair, material }: { stair: StairNode; material: THREE.Material }) {
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const stepCount = Math.max(2, Math.round(stair.stepCount ?? 10))
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const totalRise = Math.max(stair.totalRise ?? 2.5, 0.1)
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const stepHeight = totalRise / stepCount
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const isSpiral = stair.stairType === 'spiral'
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const innerRadius = Math.max(isSpiral ? 0.05 : 0.2, stair.innerRadius ?? 0.9)
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const outerRadius = innerRadius + Math.max(stair.width ?? 1, 0.4)
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const sweepAngle = stair.sweepAngle ?? (isSpiral ? Math.PI * 2 : Math.PI / 2)
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const stepSweep = sweepAngle / stepCount
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const thickness = Math.max(stair.thickness ?? 0.25, 0.02)
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const fillToFloor = stair.fillToFloor ?? true
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const spiralColumnRadius = Math.max(0.05, Math.min(innerRadius * 0.72, innerRadius - 0.03))
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const spiralColumnHeight = totalRise + thickness
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const spiralLandingDepth = Math.max(0.3, stair.topLandingDepth ?? Math.max((stair.width ?? 1) * 0.9, 0.8))
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const spiralLandingSweep =
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isSpiral && (stair.topLandingMode ?? 'none') === 'integrated'
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? Math.min(Math.PI * 0.75, spiralLandingDepth / Math.max(innerRadius + (stair.width ?? 1) / 2, 0.1)) *
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Math.sign(sweepAngle || 1)
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: 0
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const spiralLastStepTop = stepHeight * Math.max(stepCount - 1, 0) + thickness
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const spiralLandingThickness =
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isSpiral && (stair.topLandingMode ?? 'none') === 'integrated'
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? Math.max(0.02, totalRise - spiralLastStepTop)
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: 0
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return (
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<group name={isSpiral ? 'spiral-stair' : 'curved-stair'}>
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{isSpiral && (stair.showCenterColumn ?? true) ? (
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<mesh castShadow receiveShadow material={material} position={[0, spiralColumnHeight / 2, 0]}>
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<cylinderGeometry args={[spiralColumnRadius, spiralColumnRadius, spiralColumnHeight, 10]} />
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</mesh>
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) : null}
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{Array.from({ length: stepCount }).map((_, index) => {
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const currentHeight = stepHeight * (index + 1)
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const actualStepHeight = isSpiral ? thickness : fillToFloor ? Math.max(currentHeight, thickness) : thickness
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const startAngle = -sweepAngle / 2 + stepSweep * index
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const endAngle = startAngle + stepSweep
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const stepY = isSpiral ? stepHeight * index : fillToFloor ? 0 : Math.max(currentHeight - thickness, 0)
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const midAngle = startAngle + stepSweep / 2
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return (
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<group key={`${stair.id}-${isSpiral ? 'spiral' : 'curved'}-step-${index}`} position-y={stepY}>
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{isSpiral && (stair.showStepSupports ?? true) ? (
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<mesh
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castShadow
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material={material}
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position={[
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Math.cos(midAngle) * (spiralColumnRadius + Math.max(0.04, innerRadius - spiralColumnRadius + 0.04) / 2 - 0.02),
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Math.max(thickness * 0.55, 0.025) / 2,
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Math.sin(midAngle) * (spiralColumnRadius + Math.max(0.04, innerRadius - spiralColumnRadius + 0.04) / 2 - 0.02),
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]}
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receiveShadow
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rotation-y={-midAngle}
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>
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<boxGeometry
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args={[
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Math.max(0.04, innerRadius - spiralColumnRadius + 0.04),
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Math.max(thickness * 0.55, 0.025),
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Math.max(0.04, Math.min(0.12, Math.max(thickness * 0.55, 0.025) * 1.5)),
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]}
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/>
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</mesh>
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) : null}
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<CurvedStepMesh
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endAngle={endAngle}
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innerRadius={innerRadius}
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material={material}
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outerRadius={outerRadius}
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positionY={0}
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startAngle={startAngle}
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stepHeight={actualStepHeight}
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thickness={thickness}
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/>
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</group>
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)
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})}
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{isSpiral && (stair.topLandingMode ?? 'none') === 'integrated' ? (
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<CurvedStepMesh
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endAngle={sweepAngle / 2 + spiralLandingSweep}
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innerRadius={innerRadius}
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material={material}
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outerRadius={outerRadius}
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positionY={spiralLastStepTop}
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startAngle={sweepAngle / 2}
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stepHeight={spiralLandingThickness}
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thickness={spiralLandingThickness}
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/>
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) : null}
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</group>
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)
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}
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function CurvedStepMesh({
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innerRadius,
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outerRadius,
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startAngle,
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endAngle,
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stepHeight,
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thickness,
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positionY,
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material,
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}: {
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innerRadius: number
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outerRadius: number
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startAngle: number
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endAngle: number
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stepHeight: number
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thickness: number
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positionY: number
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material: THREE.Material
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}) {
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const geometry = useMemo(
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() => buildCurvedStepGeometry(innerRadius, outerRadius, startAngle, endAngle, Math.max(stepHeight, thickness)),
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[endAngle, innerRadius, outerRadius, startAngle, stepHeight, thickness],
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)
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return <mesh castShadow geometry={geometry} material={material} position-y={positionY} receiveShadow />
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}
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function buildCurvedStepGeometry(
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innerRadius: number,
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outerRadius: number,
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startAngle: number,
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endAngle: number,
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height: number,
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) {
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const clampedHeight = Math.max(height, 0.02)
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const y0 = 0
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const y1 = clampedHeight
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const sweepAngle = endAngle - startAngle
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const sweepDirection = Math.sign(sweepAngle) || 1
|
||||
const segmentCount = Math.max(4, Math.min(24, Math.ceil(Math.abs(sweepAngle) / (Math.PI / 18) + Math.max(0, (outerRadius - innerRadius) * 3))))
|
||||
|
||||
const positions: number[] = []
|
||||
const normals: number[] = []
|
||||
|
||||
const pointOnArc = (radius: number, angle: number, y: number) =>
|
||||
new THREE.Vector3(Math.cos(angle) * radius, y, Math.sin(angle) * radius)
|
||||
|
||||
const pushTriangle = (a: THREE.Vector3, b: THREE.Vector3, c: THREE.Vector3, normal: THREE.Vector3) => {
|
||||
const edgeAB = b.clone().sub(a)
|
||||
const edgeAC = c.clone().sub(a)
|
||||
const faceNormal = edgeAB.cross(edgeAC)
|
||||
const ordered = faceNormal.dot(normal) >= 0 ? [a, b, c] : [a, c, b]
|
||||
for (const point of ordered) {
|
||||
positions.push(point.x, point.y, point.z)
|
||||
normals.push(normal.x, normal.y, normal.z)
|
||||
}
|
||||
}
|
||||
|
||||
const pushQuad = (a: THREE.Vector3, b: THREE.Vector3, c: THREE.Vector3, d: THREE.Vector3, normal: THREE.Vector3) => {
|
||||
pushTriangle(a, b, c, normal)
|
||||
pushTriangle(a, c, d, normal)
|
||||
}
|
||||
|
||||
const upNormal = new THREE.Vector3(0, 1, 0)
|
||||
const downNormal = new THREE.Vector3(0, -1, 0)
|
||||
|
||||
for (let index = 0; index < segmentCount; index++) {
|
||||
const t0 = index / segmentCount
|
||||
const t1 = (index + 1) / segmentCount
|
||||
const segStart = startAngle + sweepAngle * t0
|
||||
const segEnd = startAngle + sweepAngle * t1
|
||||
const midAngle = (segStart + segEnd) / 2
|
||||
|
||||
const innerStartBottom = pointOnArc(innerRadius, segStart, y0)
|
||||
const innerEndBottom = pointOnArc(innerRadius, segEnd, y0)
|
||||
const outerStartBottom = pointOnArc(outerRadius, segStart, y0)
|
||||
const outerEndBottom = pointOnArc(outerRadius, segEnd, y0)
|
||||
const innerStartTop = pointOnArc(innerRadius, segStart, y1)
|
||||
const innerEndTop = pointOnArc(innerRadius, segEnd, y1)
|
||||
const outerStartTop = pointOnArc(outerRadius, segStart, y1)
|
||||
const outerEndTop = pointOnArc(outerRadius, segEnd, y1)
|
||||
|
||||
const outerNormal = new THREE.Vector3(Math.cos(midAngle), 0, Math.sin(midAngle)).normalize()
|
||||
const innerNormal = new THREE.Vector3(-Math.cos(midAngle), 0, -Math.sin(midAngle)).normalize()
|
||||
|
||||
pushQuad(innerStartTop, outerStartTop, outerEndTop, innerEndTop, upNormal)
|
||||
pushQuad(innerStartBottom, innerEndBottom, outerEndBottom, outerStartBottom, downNormal)
|
||||
pushQuad(innerStartBottom, innerStartTop, innerEndTop, innerEndBottom, innerNormal)
|
||||
pushQuad(outerStartBottom, outerEndBottom, outerEndTop, outerStartTop, outerNormal)
|
||||
}
|
||||
|
||||
const startInnerBottom = pointOnArc(innerRadius, startAngle, y0)
|
||||
const startOuterBottom = pointOnArc(outerRadius, startAngle, y0)
|
||||
const startInnerTop = pointOnArc(innerRadius, startAngle, y1)
|
||||
const startOuterTop = pointOnArc(outerRadius, startAngle, y1)
|
||||
const endInnerBottom = pointOnArc(innerRadius, endAngle, y0)
|
||||
const endOuterBottom = pointOnArc(outerRadius, endAngle, y0)
|
||||
const endInnerTop = pointOnArc(innerRadius, endAngle, y1)
|
||||
const endOuterTop = pointOnArc(outerRadius, endAngle, y1)
|
||||
const startNormal = new THREE.Vector3(
|
||||
sweepDirection * Math.sin(startAngle),
|
||||
0,
|
||||
-sweepDirection * Math.cos(startAngle),
|
||||
).normalize()
|
||||
const endNormal = new THREE.Vector3(
|
||||
-sweepDirection * Math.sin(endAngle),
|
||||
0,
|
||||
sweepDirection * Math.cos(endAngle),
|
||||
).normalize()
|
||||
|
||||
pushQuad(startInnerBottom, startOuterBottom, startOuterTop, startInnerTop, startNormal)
|
||||
pushQuad(endInnerBottom, endInnerTop, endOuterTop, endOuterBottom, endNormal)
|
||||
|
||||
const geometry = new THREE.BufferGeometry()
|
||||
geometry.setAttribute('position', new THREE.Float32BufferAttribute(positions, 3))
|
||||
geometry.setAttribute('normal', new THREE.Float32BufferAttribute(normals, 3))
|
||||
geometry.computeVertexNormals()
|
||||
return geometry
|
||||
}
|
||||
|
||||
function buildStairRailPaths(
|
||||
segments: StairSegmentNode[],
|
||||
railingMode: StairNode['railingMode'],
|
||||
): StairSegmentRailPath[] {
|
||||
if (!segments.length || railingMode === 'none') return []
|
||||
|
||||
const layouts = computeStairRailLayouts(segments)
|
||||
const landingInset = 0.08
|
||||
|
||||
if (railingMode === 'both') {
|
||||
const isStraightLineDoubleLandingLayout =
|
||||
layouts.length === 4 &&
|
||||
layouts[0]?.segment.segmentType === 'stair' &&
|
||||
layouts[1]?.segment.segmentType === 'landing' &&
|
||||
layouts[2]?.segment.segmentType === 'stair' &&
|
||||
layouts[2]?.segment.attachmentSide === 'front' &&
|
||||
layouts[3]?.segment.segmentType === 'landing' &&
|
||||
layouts[3]?.segment.attachmentSide === 'front'
|
||||
|
||||
return layouts.map((layout, index) => {
|
||||
const previousLayout = index > 0 ? layouts[index - 1] : undefined
|
||||
const nextLayout = layouts[index + 1]
|
||||
const { nextStairLayout, isTerminalLandingBeforeStair } = resolveLandingChainNextStair(layouts, index)
|
||||
const hideLandingRailing =
|
||||
layout.segment.segmentType === 'landing' &&
|
||||
previousLayout?.segment.segmentType === 'stair' &&
|
||||
nextLayout?.segment.segmentType === 'stair'
|
||||
const visualTurnSide =
|
||||
isTerminalLandingBeforeStair && nextStairLayout?.segment.attachmentSide
|
||||
? nextStairLayout.segment.attachmentSide
|
||||
: nextLayout?.segment.attachmentSide
|
||||
const sideCandidates =
|
||||
isTerminalLandingBeforeStair && layout.segment.segmentType === 'landing'
|
||||
? visualTurnSide === 'left'
|
||||
? (['front', 'right'] as const)
|
||||
: visualTurnSide === 'right'
|
||||
? (['front', 'left'] as const)
|
||||
: (['left', 'right'] as const)
|
||||
: hideLandingRailing
|
||||
? visualTurnSide === 'left'
|
||||
? (['front', 'right'] as const)
|
||||
: visualTurnSide === 'right'
|
||||
? (['front', 'left'] as const)
|
||||
: (['left', 'right'] as const)
|
||||
: layout.segment.segmentType === 'landing'
|
||||
? nextLayout?.segment.segmentType === 'landing' && visualTurnSide === 'left'
|
||||
? (['front', 'right'] as const)
|
||||
: nextLayout?.segment.segmentType === 'landing' && visualTurnSide === 'right'
|
||||
? (['front', 'left'] as const)
|
||||
: visualTurnSide === 'left'
|
||||
? (['right'] as const)
|
||||
: visualTurnSide === 'right'
|
||||
? (['left'] as const)
|
||||
: (['left', 'right'] as const)
|
||||
: (['left', 'right'] as const)
|
||||
|
||||
return {
|
||||
layout,
|
||||
sidePaths:
|
||||
isStraightLineDoubleLandingLayout && index === 1
|
||||
? (['left', 'right'] as const).map((side) => buildSegmentRailPath(layouts, index, side, landingInset))
|
||||
: sideCandidates.map((side) => buildSegmentRailPath(layouts, index, side, landingInset)),
|
||||
connectFromPrevious:
|
||||
index > 0 &&
|
||||
!(previousLayout?.segment.segmentType === 'landing' && layout.segment.segmentType === 'landing'),
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
const isStraightLineDoubleLandingLayout =
|
||||
layouts.length === 4 &&
|
||||
layouts[0]?.segment.segmentType === 'stair' &&
|
||||
layouts[1]?.segment.segmentType === 'landing' &&
|
||||
layouts[2]?.segment.segmentType === 'stair' &&
|
||||
layouts[2]?.segment.attachmentSide === 'front' &&
|
||||
layouts[3]?.segment.segmentType === 'landing' &&
|
||||
layouts[3]?.segment.attachmentSide === 'front'
|
||||
|
||||
return layouts.map((layout, index) => {
|
||||
const previousLayout = index > 0 ? layouts[index - 1] : undefined
|
||||
const nextLayout = layouts[index + 1]
|
||||
const { nextStairLayout, isTerminalLandingBeforeStair } = resolveLandingChainNextStair(layouts, index)
|
||||
const isMiddleLandingBetweenFlights =
|
||||
layout.segment.segmentType === 'landing' &&
|
||||
previousLayout?.segment.segmentType === 'stair' &&
|
||||
nextLayout?.segment.segmentType === 'stair'
|
||||
const nextAttachmentSide = nextLayout?.segment.attachmentSide
|
||||
const terminalNextAttachmentSide = nextStairLayout?.segment.attachmentSide
|
||||
const suppressMiddleLandingOnPreferredTurnSide =
|
||||
isMiddleLandingBetweenFlights &&
|
||||
nextAttachmentSide != null &&
|
||||
nextAttachmentSide !== 'front' &&
|
||||
nextAttachmentSide === railingMode
|
||||
const suppressLandingRailing =
|
||||
(layout.segment.segmentType === 'landing' &&
|
||||
nextLayout?.segment.segmentType === 'landing' &&
|
||||
nextAttachmentSide === railingMode) ||
|
||||
suppressMiddleLandingOnPreferredTurnSide
|
||||
const landingContinuesOnPreferredSide =
|
||||
layout.segment.segmentType === 'landing'
|
||||
? nextAttachmentSide == null || nextAttachmentSide === 'front' || nextAttachmentSide === railingMode
|
||||
: true
|
||||
|
||||
const sideCandidates =
|
||||
suppressLandingRailing
|
||||
? ([] as StairRailPathSide[])
|
||||
: layout.segment.segmentType !== 'landing'
|
||||
? [railingMode]
|
||||
: isTerminalLandingBeforeStair
|
||||
? railingMode === 'left'
|
||||
? terminalNextAttachmentSide === 'right'
|
||||
? (['front', 'left'] as const)
|
||||
: terminalNextAttachmentSide === 'front' || terminalNextAttachmentSide == null
|
||||
? (['left'] as const)
|
||||
: ([] as StairRailPathSide[])
|
||||
: railingMode === 'right'
|
||||
? terminalNextAttachmentSide === 'left'
|
||||
? (['front', 'right'] as const)
|
||||
: terminalNextAttachmentSide === 'front' || terminalNextAttachmentSide == null
|
||||
? (['right'] as const)
|
||||
: ([] as StairRailPathSide[])
|
||||
: [railingMode]
|
||||
: isStraightLineDoubleLandingLayout
|
||||
? [railingMode]
|
||||
: isMiddleLandingBetweenFlights && railingMode === 'left'
|
||||
? nextAttachmentSide === 'right'
|
||||
? (['front', 'left'] as const)
|
||||
: (['left'] as const)
|
||||
: isMiddleLandingBetweenFlights && railingMode === 'right'
|
||||
? nextAttachmentSide === 'left'
|
||||
? (['front', 'right'] as const)
|
||||
: (['right'] as const)
|
||||
: nextLayout?.segment.segmentType === 'landing' &&
|
||||
nextAttachmentSide != null &&
|
||||
nextAttachmentSide !== 'front' &&
|
||||
nextAttachmentSide !== railingMode
|
||||
? (['front', railingMode] as StairRailPathSide[])
|
||||
: [railingMode]
|
||||
|
||||
return {
|
||||
layout,
|
||||
sidePaths: sideCandidates.map((side) => buildSegmentRailPath(layouts, index, side, landingInset)),
|
||||
connectFromPrevious:
|
||||
index > 0 &&
|
||||
!suppressLandingRailing &&
|
||||
sideCandidates.length > 0 &&
|
||||
(layout.segment.segmentType === 'landing' ? landingContinuesOnPreferredSide : true),
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
function resolveLandingChainNextStair(layouts: StairRailLayout[], index: number): LandingChainNextStair {
|
||||
const layout = layouts[index]
|
||||
if (!layout || layout.segment.segmentType !== 'landing') {
|
||||
return { isTerminalLandingBeforeStair: false }
|
||||
}
|
||||
|
||||
let cursor = index
|
||||
while (cursor + 1 < layouts.length && layouts[cursor + 1]?.segment.segmentType === 'landing') {
|
||||
cursor += 1
|
||||
}
|
||||
|
||||
const nextStairLayout =
|
||||
cursor + 1 < layouts.length && layouts[cursor + 1]?.segment.segmentType === 'stair'
|
||||
? layouts[cursor + 1]
|
||||
: undefined
|
||||
|
||||
return {
|
||||
nextStairLayout,
|
||||
isTerminalLandingBeforeStair: Boolean(nextStairLayout) && cursor === index,
|
||||
}
|
||||
}
|
||||
|
||||
function computeStairRailLayouts(segments: StairSegmentNode[]): StairRailLayout[] {
|
||||
const transforms = computeSegmentTransforms(segments)
|
||||
return segments.map((segment, index) => {
|
||||
const transform = transforms[index]!
|
||||
const [centerOffsetX, centerOffsetZ] = rotateXZ(0, segment.length / 2, transform.rotation)
|
||||
return {
|
||||
center: [transform.position[0] + centerOffsetX, transform.position[2] + centerOffsetZ],
|
||||
elevation: transform.position[1],
|
||||
rotation: transform.rotation,
|
||||
segment,
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
function buildSegmentRailPath(
|
||||
layouts: StairRailLayout[],
|
||||
layoutIndex: number,
|
||||
side: StairRailPathSide,
|
||||
landingInset: number,
|
||||
): StairRailSidePath {
|
||||
const layout = layouts[layoutIndex]!
|
||||
const segment = layout.segment
|
||||
const previousLayout = layoutIndex > 0 ? layouts[layoutIndex - 1] : undefined
|
||||
const nextLayout = layoutIndex >= 0 ? layouts[layoutIndex + 1] : undefined
|
||||
const steps = Math.max(1, segment.segmentType === 'landing' ? 1 : segment.stepCount)
|
||||
const stepDepth = segment.length / steps
|
||||
const stepHeight = segment.segmentType === 'landing' ? 0 : segment.height / steps
|
||||
const flightSideOffset = side === 'left' ? segment.width / 2 - 0.045 : -segment.width / 2 + 0.045
|
||||
const flightStartX =
|
||||
previousLayout?.segment.segmentType === 'landing' ? -segment.length / 2 + landingInset : -segment.length / 2
|
||||
const flightEndX =
|
||||
nextLayout?.segment.segmentType === 'landing' ? segment.length / 2 - landingInset : segment.length / 2
|
||||
const landingFrontX =
|
||||
previousLayout?.segment.segmentType === 'stair' &&
|
||||
segment.attachmentSide &&
|
||||
segment.attachmentSide !== 'front'
|
||||
? -segment.length / 2 + landingInset
|
||||
: segment.length / 2 - landingInset
|
||||
|
||||
if (segment.segmentType === 'landing') {
|
||||
const backX = -segment.length / 2 + landingInset
|
||||
const frontX = segment.length / 2 - landingInset
|
||||
const leftZ = segment.width / 2 - landingInset
|
||||
const rightZ = -segment.width / 2 + landingInset
|
||||
|
||||
return {
|
||||
side,
|
||||
points:
|
||||
side === 'left'
|
||||
? [
|
||||
[backX, 0, leftZ],
|
||||
[frontX, 0, leftZ],
|
||||
]
|
||||
: side === 'right'
|
||||
? [
|
||||
[backX, 0, rightZ],
|
||||
[frontX, 0, rightZ],
|
||||
]
|
||||
: [
|
||||
[landingFrontX, 0, leftZ],
|
||||
[landingFrontX, 0, rightZ],
|
||||
],
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
side,
|
||||
points: [
|
||||
...(previousLayout?.segment.segmentType === 'landing' ? [] : ([[flightStartX, stepHeight > 0 ? stepHeight : 0, flightSideOffset]] as [number, number, number][])),
|
||||
...Array.from({ length: steps }).map(
|
||||
(_, index) =>
|
||||
[
|
||||
-segment.length / 2 + stepDepth * index + stepDepth / 2,
|
||||
stepHeight * (index + 1),
|
||||
flightSideOffset,
|
||||
] as [number, number, number],
|
||||
),
|
||||
...(nextLayout?.segment.segmentType === 'landing'
|
||||
? []
|
||||
: ([[flightEndX, segment.height, flightSideOffset]] as [number, number, number][])),
|
||||
],
|
||||
}
|
||||
}
|
||||
|
||||
function toWorldRailPoint(layout: StairRailLayout, point: [number, number, number]): [number, number, number] {
|
||||
const [localX, localY, localZ] = point
|
||||
const [offsetX, offsetZ] = rotateXZ(localZ, localX, layout.rotation)
|
||||
return [layout.center[0] + offsetX, layout.elevation + localY, layout.center[1] + offsetZ]
|
||||
}
|
||||
|
||||
function computeSegmentTransforms(segments: StairSegmentNode[]): SegmentTransform[] {
|
||||
const transforms: SegmentTransform[] = []
|
||||
let currentPos = new THREE.Vector3(0, 0, 0)
|
||||
let currentRot = 0
|
||||
|
||||
for (let i = 0; i < segments.length; i++) {
|
||||
const segment = segments[i]!
|
||||
|
||||
if (i === 0) {
|
||||
transforms.push({ position: [currentPos.x, currentPos.y, currentPos.z], rotation: currentRot })
|
||||
continue
|
||||
}
|
||||
|
||||
const prev = segments[i - 1]!
|
||||
const localAttachPos = new THREE.Vector3()
|
||||
let rotChange = 0
|
||||
|
||||
switch (segment.attachmentSide) {
|
||||
case 'front':
|
||||
localAttachPos.set(0, prev.height, prev.length)
|
||||
break
|
||||
case 'left':
|
||||
localAttachPos.set(prev.width / 2, prev.height, prev.length / 2)
|
||||
rotChange = Math.PI / 2
|
||||
break
|
||||
case 'right':
|
||||
localAttachPos.set(-prev.width / 2, prev.height, prev.length / 2)
|
||||
rotChange = -Math.PI / 2
|
||||
break
|
||||
}
|
||||
|
||||
localAttachPos.applyAxisAngle(new THREE.Vector3(0, 1, 0), currentRot)
|
||||
currentPos = currentPos.clone().add(localAttachPos)
|
||||
currentRot += rotChange
|
||||
|
||||
transforms.push({ position: [currentPos.x, currentPos.y, currentPos.z], rotation: currentRot })
|
||||
}
|
||||
|
||||
return transforms
|
||||
}
|
||||
|
||||
function rotateXZ(x: number, z: number, angle: number): [number, number] {
|
||||
const cos = Math.cos(angle)
|
||||
const sin = Math.sin(angle)
|
||||
return [x * cos + z * sin, -x * sin + z * cos]
|
||||
}
|
||||
|
||||
function distance3(a: [number, number, number], b: [number, number, number]) {
|
||||
return Math.hypot(a[0] - b[0], a[1] - b[1], a[2] - b[2])
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user