Improve elevator floorplan resize and drag controls

packages/core/src/systems/elevator/elevator-dispatch.ts

@@ -0,0 +1,90 @@
+import type { AnyNode, AnyNodeId, ElevatorNode } from '../../schema'
+import type { ElevatorInteractiveState } from '../../store/use-interactive'
+import { resolveElevatorServiceLevels } from './elevator-service'
+
+type ElevatorRuntimeMap = Record<AnyNodeId, ElevatorInteractiveState>
+
+type ResolveElevatorDispatchTargetArgs = {
+  elevators: ElevatorRuntimeMap
+  levelId: AnyNodeId
+  nodes: Record<string, AnyNode>
+  requestedElevatorId: AnyNodeId
+}
+
+function getRuntimeLevelId(runtime: ElevatorInteractiveState | undefined, elevator: ElevatorNode) {
+  return runtime?.currentLevelId ?? elevator.defaultLevelId ?? elevator.fromLevelId ?? null
+}
+
+function scoreDispatchCandidate({
+  elevator,
+  elevators,
+  levelId,
+  nodes,
+}: {
+  elevator: ElevatorNode
+  elevators: ElevatorRuntimeMap
+  levelId: AnyNodeId
+  nodes: Record<string, AnyNode>
+}) {
+  if ((elevator.disabledLevelIds ?? []).includes(levelId)) return null
+  if ((elevator.serviceOnlyLevelIds ?? []).includes(levelId)) return null
+
+  const serviceLevels = resolveElevatorServiceLevels(elevator, nodes)
+  const targetIndex = serviceLevels.findIndex((level) => level.id === levelId)
+  if (targetIndex < 0) return null
+
+  const runtime = elevators[elevator.id as AnyNodeId]
+  const runtimeLevelId = getRuntimeLevelId(runtime, elevator)
+  const currentIndex = runtimeLevelId
+    ? serviceLevels.findIndex((level) => level.id === runtimeLevelId)
+    : -1
+  const resolvedCurrentIndex = currentIndex >= 0 ? currentIndex : 0
+  const distance = Math.abs(targetIndex - resolvedCurrentIndex)
+  const queuePenalty = (runtime?.queue.length ?? 0) * 2 + (runtime?.targetLevelId ? 1 : 0)
+  const motionPenalty = runtime?.phase === 'moving' || runtime?.phase === 'closing' ? 0.5 : 0
+  const openPenalty = runtime?.phase === 'open' || runtime?.phase === 'opening' ? 0.2 : 0
+
+  return distance + queuePenalty + motionPenalty + openPenalty
+}
+
+export function resolveElevatorDispatchTarget({
+  elevators,
+  levelId,
+  nodes,
+  requestedElevatorId,
+}: ResolveElevatorDispatchTargetArgs): AnyNodeId {
+  const requestedElevator = nodes[requestedElevatorId]
+  if (!(requestedElevator?.type === 'elevator' && requestedElevator.parentId)) {
+    return requestedElevatorId
+  }
+
+  const building = nodes[requestedElevator.parentId as AnyNodeId]
+  if (building?.type !== 'building') {
+    return requestedElevatorId
+  }
+
+  let bestElevatorId: AnyNodeId | null = null
+  let bestScore = Number.POSITIVE_INFINITY
+
+  for (const childId of building.children) {
+    const candidate = nodes[childId as AnyNodeId]
+    if (!(candidate?.type === 'elevator' && candidate.visible !== false)) continue
+
+    const score = scoreDispatchCandidate({
+      elevator: candidate,
+      elevators,
+      levelId,
+      nodes,
+    })
+    if (score === null) continue
+
+    const tieBreaker = candidate.id === requestedElevatorId ? -0.01 : 0
+    const finalScore = score + tieBreaker
+    if (finalScore < bestScore) {
+      bestScore = finalScore
+      bestElevatorId = candidate.id as AnyNodeId
+    }
+  }
+
+  return bestElevatorId ?? requestedElevatorId
+}

packages/core/src/systems/elevator/elevator-opening-sync.ts

@@ -11,6 +11,7 @@ type SurfaceHoleMetadata = {
 }
 
 const ELEVATOR_OPENING_PADDING = 0.08
+const DEFAULT_ELEVATOR_SHAFT_WALL_THICKNESS = 0.09
 
 function pointsEqual(a: Point2D, b: Point2D, tolerance = 1e-5) {
   const dx = a[0] - b[0]
@@ -141,8 +142,14 @@ function shouldApplyElevatorToCeiling(
 }
 
 function getElevatorOpeningPolygon(elevator: ElevatorNode): Point2D[] {
-  const halfWidth = Math.max(elevator.width, 0.8) / 2 + ELEVATOR_OPENING_PADDING
-  const halfDepth = Math.max(elevator.depth, 0.8) / 2 + ELEVATOR_OPENING_PADDING
+  const wallThickness = Math.max(
+    elevator.shaftWallThickness ?? DEFAULT_ELEVATOR_SHAFT_WALL_THICKNESS,
+    0.04,
+  )
+  const shaftWidth = Math.max(elevator.shaftWidth ?? elevator.width, elevator.width, 0.8)
+  const shaftDepth = Math.max(elevator.shaftDepth ?? elevator.depth, elevator.depth, 0.8)
+  const halfWidth = shaftWidth / 2 + wallThickness + ELEVATOR_OPENING_PADDING
+  const halfDepth = shaftDepth / 2 + wallThickness + ELEVATOR_OPENING_PADDING
   const corners: Point2D[] = [
     [-halfWidth, -halfDepth],
     [halfWidth, -halfDepth],