ZhongMianAdmin/packages/kankan-sdk/src/utils/convert.js

import math from '@sdk/utils/math'
import convertTool from './convertTool'

export default {
    /**
     * 2d转3d1
     * @param {*} x
     * @param {*} y
     * @param {*} player
     * @returns
     */
    pointFrom2DTo3D({ x, y }, player, camera, element) {
        if (!camera) {
            camera = player.camera
        }
        if (!element) {
            element = player.domElement
        }
        let position = new THREE.Vector3(0, 0, 0)
        math.convertScreenPositionToNDC(x, y, position, element)
        position.unproject(camera)
        position.y = 0
        return position
    },
    /**
     * 3d转2d
     * @param {*} position
     * @returns
     */
    pointFrom3DTo2D(position, player, camera, element) {
        let vector = position

        if (!camera) {
            camera = player.camera
        }
        if (!element) {
            element = player.domElement
        }

        if (position instanceof THREE.Vector3 === false) {
            vector = new THREE.Vector3(vector.x || 0, vector.y || 0, vector.z || 0)
        }
        return convertTool.getPos2d(vector, player, camera, element).pos
    },
}