feat: HVAC ductwork + DWV plumbing systems (#402)
Adds two new MEP node families (HVAC ductwork, DWV plumbing) built on a shared port-connectivity model. Co-authored by @sudhir9297.
This commit is contained in:
Sudhir Yadav
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'use client'
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import {
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type AnyNodeId,
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type LiquidLineNode,
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pauseSceneHistory,
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resumeSceneHistory,
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sceneRegistry,
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useScene,
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} from '@pascal-app/core'
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import { DimensionPill, EDITOR_LAYER, useEditor } from '@pascal-app/editor'
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import { useViewer } from '@pascal-app/viewer'
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import { Html } from '@react-three/drei'
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import { createPortal, type ThreeEvent, useThree } from '@react-three/fiber'
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import { useEffect, useRef, useState } from 'react'
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import { type Object3D, Plane, Raycaster, Vector2, Vector3 } from 'three'
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import { collectScenePorts, findNearestPortXZ, REFRIGERANT_PORT_SYSTEMS } from '../shared/ports'
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const HANDLE_RADIUS = 0.07
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const PORT_SNAP_RADIUS_M = 0.4
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const UP = new Vector3(0, 1, 0)
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function snap(value: number, step: number): number {
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if (step <= 0) return value
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return Math.round(value / step) * step
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}
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type Point = [number, number, number]
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/**
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* Selection-time editing for committed liquid-line runs: one draggable handle
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* per path point. Mirrors the lineset path-handle system; dragged run
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* endpoints snap onto refrigerant ports only.
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*
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* Handles are PORTALED into the line's registered scene group so they share
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* its exact frame. Drag raycasts run in world space and convert hits back into
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* the group's local frame before writing the path.
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*/
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const LiquidLineSelectionAffordance = () => {
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const selectedIds = useViewer((s) => s.selection.selectedIds)
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const line = useScene((s) => {
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if (selectedIds.length !== 1) return null
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const node = s.nodes[selectedIds[0] as AnyNodeId]
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return node?.type === 'liquid-line' ? (node as LiquidLineNode) : null
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})
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const lineId = line?.id ?? null
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const [target, setTarget] = useState<Object3D | null>(null)
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useEffect(() => {
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if (!lineId) {
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setTarget(null)
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return
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}
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let frameId = 0
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const resolve = () => {
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const next = sceneRegistry.nodes.get(lineId as AnyNodeId) ?? null
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setTarget((cur) => (cur === next ? cur : next))
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if (!next) frameId = window.requestAnimationFrame(resolve)
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}
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resolve()
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return () => window.cancelAnimationFrame(frameId)
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}, [lineId])
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if (!line || !target) return null
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return createPortal(<LiquidLinePointHandles line={line} target={target} />, target, undefined)
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}
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const LiquidLinePointHandles = ({ line, target }: { line: LiquidLineNode; target: Object3D }) => {
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const { camera, gl } = useThree()
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const unit = useViewer((s) => s.unit)
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const [draggingIndex, setDraggingIndex] = useState<number | null>(null)
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const [hoverIndex, setHoverIndex] = useState<number | null>(null)
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const dragRef = useRef<{
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index: number
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initialPath: Point[]
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current: Point
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cleanup: () => void
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} | null>(null)
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const makeRay = (clientX: number, clientY: number) => {
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const rect = gl.domElement.getBoundingClientRect()
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const ndc = new Vector2(
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((clientX - rect.left) / rect.width) * 2 - 1,
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-((clientY - rect.top) / rect.height) * 2 + 1,
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)
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const raycaster = new Raycaster()
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raycaster.setFromCamera(ndc, camera)
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return raycaster.ray
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}
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const intersect = (clientX: number, clientY: number, plane: Plane): Vector3 | null => {
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const hit = new Vector3()
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return makeRay(clientX, clientY).intersectPlane(plane, hit) ? hit : null
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}
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const projectOntoAxis = (
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clientX: number,
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clientY: number,
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anchorWorld: Vector3,
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axisWorld: Vector3,
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): number | null => {
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const ray = makeRay(clientX, clientY)
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const w0 = new Vector3().subVectors(ray.origin, anchorWorld)
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const b = ray.direction.dot(axisWorld)
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const denom = 1 - b * b
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if (Math.abs(denom) < 1e-6) return null
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const d0 = ray.direction.dot(w0)
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const e0 = axisWorld.dot(w0)
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return (e0 - b * d0) / denom
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}
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const toWorld = (p: Point): Vector3 => target.localToWorld(new Vector3(p[0], p[1], p[2]))
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const toLocal = (world: Vector3): Point => {
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const local = target.worldToLocal(world.clone())
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return [local.x, local.y, local.z]
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}
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const onHandleDown = (index: number) => (e: ThreeEvent<PointerEvent>) => {
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e.stopPropagation()
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const initialPath = line.path.map((p) => [...p] as Point)
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const startPoint = initialPath[index]!
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pauseSceneHistory(useScene)
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useViewer.getState().setInputDragging(true)
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document.body.style.cursor = 'grabbing'
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setDraggingIndex(index)
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const isEndpoint = index === 0 || index === initialPath.length - 1
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const neighbor = initialPath[index === 0 ? 1 : index - 1]!
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const axisLocal = new Vector3(
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startPoint[0] - neighbor[0],
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startPoint[1] - neighbor[1],
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startPoint[2] - neighbor[2],
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)
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if (axisLocal.lengthSq() < 1e-9) axisLocal.set(1, 0, 0)
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axisLocal.normalize()
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const anchorWorldStart = toWorld(startPoint)
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const axisWorld = toWorld([
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startPoint[0] + axisLocal.x,
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startPoint[1] + axisLocal.y,
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startPoint[2] + axisLocal.z,
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])
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.sub(anchorWorldStart)
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.normalize()
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const onMove = (event: PointerEvent) => {
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const drag = dragRef.current
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if (!drag) return
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const current = drag.current
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const step = event.shiftKey ? 0 : useEditor.getState().gridSnapStep
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let next: Point | null = null
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if (event.altKey) {
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const plane = new Plane().setFromNormalAndCoplanarPoint(UP, toWorld(current))
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const hit = intersect(event.clientX, event.clientY, plane)
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if (hit) {
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const local = toLocal(hit)
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next = [snap(local[0], step), current[1], snap(local[2], step)]
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if (isEndpoint) {
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const port = findNearestPortXZ(
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[local[0], current[1], local[2]],
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collectScenePorts({ excludeNodeId: line.id, systems: REFRIGERANT_PORT_SYSTEMS }),
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PORT_SNAP_RADIUS_M,
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)
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if (port) next = [port.position[0], port.position[1], port.position[2]]
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}
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}
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} else {
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const t = projectOntoAxis(event.clientX, event.clientY, anchorWorldStart, axisWorld)
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if (t !== null) {
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const dist = snap(t, step)
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next = [
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startPoint[0] + axisLocal.x * dist,
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Math.max(0, startPoint[1] + axisLocal.y * dist),
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startPoint[2] + axisLocal.z * dist,
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]
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}
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}
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if (!next) return
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if (next[0] === current[0] && next[1] === current[1] && next[2] === current[2]) return
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drag.current = next
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const path = line.path.map((p, i) => (i === drag.index ? next! : p)) as Point[]
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useScene.getState().updateNode(line.id, { path })
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}
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const onUp = () => {
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const drag = dragRef.current
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if (!drag) return
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drag.cleanup()
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dragRef.current = null
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setDraggingIndex(null)
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const finalPath = drag.initialPath.map((p, i) =>
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i === drag.index ? drag.current : p,
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) as Point[]
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useScene.getState().updateNode(line.id, { path: drag.initialPath })
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resumeSceneHistory(useScene)
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const moved = finalPath[drag.index]!.some(
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(v, axis) => v !== drag.initialPath[drag.index]![axis],
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)
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if (moved) useScene.getState().updateNode(line.id, { path: finalPath })
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}
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const cleanup = () => {
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window.removeEventListener('pointermove', onMove)
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window.removeEventListener('pointerup', onUp)
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window.removeEventListener('pointercancel', onUp)
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useViewer.getState().setInputDragging(false)
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document.body.style.cursor = ''
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}
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dragRef.current = { index, initialPath, current: startPoint, cleanup }
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window.addEventListener('pointermove', onMove)
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window.addEventListener('pointerup', onUp)
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window.addEventListener('pointercancel', onUp)
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}
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return (
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<group>
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{line.path.map((p, i) => {
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const active = draggingIndex === i
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const hovered = hoverIndex === i
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return (
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<mesh
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key={`liquid-line-handle-${i}`}
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layers={EDITOR_LAYER}
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onPointerDown={onHandleDown(i)}
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onPointerEnter={(e) => {
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e.stopPropagation()
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setHoverIndex(i)
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if (draggingIndex === null) document.body.style.cursor = 'grab'
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}}
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onPointerLeave={() => {
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setHoverIndex((prev) => (prev === i ? null : prev))
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if (draggingIndex === null) document.body.style.cursor = ''
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}}
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position={p as Point}
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>
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<sphereGeometry args={[HANDLE_RADIUS, 16, 12]} />
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<meshBasicMaterial
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color={active || hovered ? '#a5b4fc' : '#818cf8'}
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depthTest={false}
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opacity={active ? 1 : 0.85}
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transparent
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/>
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</mesh>
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)
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})}
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{draggingIndex !== null &&
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line.path[draggingIndex] &&
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(() => {
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const point = line.path[draggingIndex]!
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const origin = dragRef.current?.initialPath[draggingIndex] ?? point
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const deltas = [point[0] - origin[0], point[1] - origin[1], point[2] - origin[2]]
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const axes = ['x', 'y', 'z'] as const
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const primary = axes.reduce((best, axis, i) =>
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Math.abs(deltas[i]!) > Math.abs(deltas[axes.indexOf(best)]!) ? axis : best,
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)
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return (
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<Html
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center
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position={[point[0], point[1] + 0.35, point[2]]}
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style={{ pointerEvents: 'none', userSelect: 'none' }}
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zIndexRange={[100, 0]}
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>
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<DimensionPill
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parts={axes.map((axis, i) => ({
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key: axis,
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prefix: axis.toUpperCase(),
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value: deltas[i]!,
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signed: true,
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}))}
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primary={primary}
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unit={unit}
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/>
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</Html>
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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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export default LiquidLineSelectionAffordance
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