eioo

function angleCalculator(enemyPos : IPos, myPos : IPos) : IAngle {
    const deltaX = myPos.x - enemyPos.x;
    const deltaY = myPos.y - enemyPos.y;
    const deltaZ = myPos.z - enemyPos.z;

    const pitch = Math.atan2( deltaY, deltaZ );
    let yaw;

    if (deltaZ >= 0) {
        yaw = -Math.atan2(deltaX * Math.cos(pitch), deltaZ);

eioo

const express = require('express');
const app = express();
const router = express.Router();

app.use(express.static('public'));

app.listen(3000);