Files
editor/apps/editor/hooks/use-grid-events.ts
T
2026-02-17 08:52:58 +09:00

107 lines
3.7 KiB
TypeScript

import { type EventSuffix, emitter, type GridEvent } from '@pascal-app/core'
import { useViewer } from '@pascal-app/viewer'
import { useThree } from '@react-three/fiber'
import { useEffect, useRef } from 'react'
import { Plane, Raycaster, Vector2, Vector3 } from 'three'
/**
* Custom grid events hook that uses manual raycasting instead of mesh events.
* This ensures grid events work even when other meshes block pointer events with stopPropagation.
*/
export function useGridEvents(gridY: number) {
const { camera, gl } = useThree()
const raycaster = useRef(new Raycaster())
const pointer = useRef(new Vector2())
const groundPlane = useRef(new Plane(new Vector3(0, 1, 0), 0))
const intersectionPoint = useRef(new Vector3())
// Update ground plane when grid Y changes
useEffect(() => {
groundPlane.current.constant = -gridY
}, [gridY])
useEffect(() => {
const canvas = gl.domElement
const getIntersection = (nativeEvent: MouseEvent | PointerEvent): Vector3 | null => {
// Convert mouse position to normalized device coordinates (-1 to +1)
const rect = canvas.getBoundingClientRect()
pointer.current.x = ((nativeEvent.clientX - rect.left) / rect.width) * 2 - 1
pointer.current.y = -((nativeEvent.clientY - rect.top) / rect.height) * 2 + 1
// Update raycaster
raycaster.current.setFromCamera(pointer.current, camera)
// Intersect with ground plane
if (raycaster.current.ray.intersectPlane(groundPlane.current, intersectionPoint.current)) {
return intersectionPoint.current.clone()
}
return null
}
const emit = (suffix: EventSuffix, nativeEvent: MouseEvent | PointerEvent) => {
const point = getIntersection(nativeEvent)
if (!point) return
const eventKey = `grid:${suffix}` as `grid:${EventSuffix}`
const payload: GridEvent = {
position: [point.x, point.y, point.z],
nativeEvent: nativeEvent as any, // Type compatibility with ThreeEvent
}
emitter.emit(eventKey, payload)
}
const handlePointerDown = (e: PointerEvent) => {
if (useViewer.getState().cameraDragging) return
if (e.button !== 0) return
emit('pointerdown', e)
}
const handlePointerUp = (e: PointerEvent) => {
if (useViewer.getState().cameraDragging) return
if (e.button !== 0) return
emit('pointerup', e)
}
const handleClick = (e: PointerEvent) => {
if (useViewer.getState().cameraDragging) return
if (e.button !== 0) return
emit('click', e)
}
const handlePointerMove = (e: PointerEvent) => {
if (useViewer.getState().cameraDragging) return
emit('move', e)
}
const handleDoubleClick = (e: MouseEvent) => {
if (useViewer.getState().cameraDragging) return
emit('double-click', e)
}
const handleContextMenu = (e: MouseEvent) => {
if (useViewer.getState().cameraDragging) return
emit('context-menu', e)
}
// Attach listeners to canvas
canvas.addEventListener('pointerdown', handlePointerDown)
canvas.addEventListener('pointerup', handlePointerUp)
canvas.addEventListener('click', handleClick)
canvas.addEventListener('pointermove', handlePointerMove)
canvas.addEventListener('dblclick', handleDoubleClick)
canvas.addEventListener('contextmenu', handleContextMenu)
return () => {
canvas.removeEventListener('pointerdown', handlePointerDown)
canvas.removeEventListener('pointerup', handlePointerUp)
canvas.removeEventListener('click', handleClick)
canvas.removeEventListener('pointermove', handlePointerMove)
canvas.removeEventListener('dblclick', handleDoubleClick)
canvas.removeEventListener('contextmenu', handleContextMenu)
}
}, [camera, gl])
}