using BrewMonster;
using CSNetwork.GPDataType;
using System;
using System.Collections;
using System.Runtime.InteropServices;
using UnityEngine;
using static EC_Player;

public static class EC_Utility
{
    public static byte glb_CompressDirH(float x, float z)
    {
        const float fInvInter = 256.0f / 360.0f;

        if (Math.Abs(x) < 0.00001f)
        {
            if (z > 0.0f)
                return 64;
            else
                return 192;
        }
        else
        {
            // atan2 trong C# trả về radian, cần đổi sang độ
            float fDeg = (float)(Math.Atan2(z, x) * (180.0 / Math.PI));

            // đảm bảo góc nằm trong [0, 360)
            if (fDeg < 0)
                fDeg += 360.0f;

            return (byte)(fDeg * fInvInter);
        }
    }
    public static float FIX8TOFLOAT(int x) => x / 256.0f;
    public static T ByteArrayToStructure<T>(byte[] bytes) where T : struct
    {
        GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
        try
        {
            return Marshal.PtrToStructure<T>(handle.AddrOfPinnedObject());
        }
        finally
        {
            handle.Free();
        }
    }
    public static Vector3 glb_DecompressDirH(byte byDir)
    {
        const float fInter = 360.0f / 256.0f;
        float fRad = Mathf.Deg2Rad * (byDir * fInter);

        Vector3 v;
        v.x = Mathf.Cos(fRad);
        v.z = Mathf.Sin(fRad);
        v.y = 0.0f;

        return v;
    }
    public static System.Numerics.Vector3 ToNumerics(this UnityEngine.Vector3 v)
    {
        return new System.Numerics.Vector3(v.x, v.y, v.z);
    }
    public static A3DVECTOR3 ToA3DVECTOR3(this UnityEngine.Vector3 v)
    {
        return new A3DVECTOR3(v.x, v.y, v.z);
    }
    public static Vector3 ToVector3(A3DVECTOR3 a3DVECTOR3)
    {
        return new Vector3(a3DVECTOR3.x, a3DVECTOR3.y, a3DVECTOR3.z);
    }
    public static float MagnitudeH(this Vector3 v)
    {
        return Mathf.Sqrt(v.x * v.x + v.z * v.z);
    }
    public static string BuildActionName(PLAYER_ACTION action, int weaponType)
    {
        string prefix = action.data.ActionPrefix ?? string.Empty;
        string suffix = string.Empty;

        if (action.data.action_weapon_suffix != null
            && weaponType >= 0
            && weaponType < action.data.action_weapon_suffix.Length)
        {
            suffix = action.data.action_weapon_suffix[weaponType].Suffix ?? string.Empty;
        }

        return $"{prefix}_{suffix}";
    }
}