Helper2.cs

using Terraria;
using Terraria.ModLoader;
using System;
using Microsoft.Xna.Framework;

namespace Tremor
{
    public static class Helper2
    {
        public static int GetNearestPlayer(Terraria.NPC npc)
        {
            float NearestPlayerDist = 4815162342f;
            int NearestPlayer = -1;
            foreach (Player player in Main.player)
            {
                if (player.Distance(npc.Center) < NearestPlayerDist)
                {
                    NearestPlayerDist = player.Distance(npc.Center);
                    NearestPlayer = player.whoAmI;
                }
            }
            return NearestPlayer;
        }

        public static int GetNearestAlivePlayer(Terraria.NPC npc)
        {
            float NearestPlayerDist = 4815162342f;
            int NearestPlayer = -1;
            foreach (Player player in Main.player)
            {
                if (player.Distance(npc.Center) < NearestPlayerDist && player.active)
                {
                    NearestPlayerDist = player.Distance(npc.Center);
                    NearestPlayer = player.whoAmI;
                }
            }
            return NearestPlayer;
        }

        public static Vector2 VelocityFPTP(Vector2 pos1, Vector2 pos2, float speed)
        {
            Vector2 move = pos2 - pos1; 
            return move * (speed / (float)Math.Sqrt(move.X * move.X + move.Y * move.Y));
        }

        public static Vector2 RandomPositin(Vector2 pos1, Vector2 pos2)
        {
            Random rnd = new Random();
            return new Vector2(rnd.Next((int)pos1.X, (int)pos2.X) + 1, rnd.Next((int)pos1.Y, (int)pos2.Y) + 1);
        }

        public static float rotateBetween2Points(Vector2 point1, Vector2 point2)
        {
            float rotation = (float)Math.Atan2(point1.Y - (point2.Y), point1.X - (point2.X));
            return rotation;
        }
    }
}