lingo3d/lib/throttle/pointerToWorld.js

Lingo3D is a React/Vue 3d game development framework that ships with a complete visual editor

import { Point3d } from "@lincode/math";
import normalizeClientPosition from "../display/utils/normalizeClientPosition";
import { pt3d0, vector3 } from "../display/utils/reusables";
import { vec2Point } from "../display/utils/vec2Point";
import { CM2M } from "../globals";
import { LingoMouseEvent } from "../interface/IMouse";
import getWorldPosition from "../memo/getWorldPosition";
import { cameraRenderedPtr } from "../pointers/cameraRenderedPtr";
import throttleFrame from "./utils/throttleFrame";
import { cameraPointerLockPtr } from "../pointers/cameraPointerLockPtr";
export default throttleFrame((ev) => {
    const distance = 500;
    const [xNorm, yNorm, canvasX, canvasY] = normalizeClientPosition(ev.clientX, ev.clientY);
    if (cameraPointerLockPtr[0])
        return new LingoMouseEvent(canvasX, canvasY, ev.clientX, ev.clientY, 0, 0, pt3d0, pt3d0, distance, undefined);
    const [camera] = cameraRenderedPtr;
    const cameraPosition = getWorldPosition(camera);
    vector3.set(xNorm, yNorm, 0.5);
    vector3.unproject(camera);
    vector3.sub(cameraPosition).normalize();
    return new LingoMouseEvent(canvasX, canvasY, ev.clientX, ev.clientY, xNorm, yNorm, vec2Point(cameraPosition.add(vector3.multiplyScalar(distance * CM2M))), new Point3d(0, 0, 0), distance, undefined);
});
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