using System;

namespace FreedomFighter;

public enum GameState { Intro, Idle, Intermission, Playing, Stats, Shop, GameOver, Credits, HighScore, EnterName }

public enum Weapon { Reg, Super, Multi }

public enum AI { Normal, Hunt, Tactical, Mine, Turret, Boss, Boss2, None }

public enum ObjectType { Fighter, Kamikaze, Tactical, Mine, MissileBase, MissileTurret, Scanner, Boss, Boss2 }

public struct Camera
{
    public int X, Y, Width, Height;
}

/// <summary>
/// The global variables from GameU.pas, kept global to preserve the original's structure.
/// </summary>
public static class G
{
    public const int ScreenWidth = 800;
    public const int ScreenHeight = 600;
    public const string Version = "BETA 5";

    public const int MUS_LEVEL1 = 0;
    public const int MUS_GAMEOVER = 3;
    public const int MUS_TITLE = 4;

    public static Game1 Game = null!;
    public static SpriteManager Sprites = null!;
    public static ImageLists Images = null!;
    public static MusicManager Music = null!;
    public static GameMap Map = null!;
    public static OmegaInput Input = null!;
    public static HighScores HighScores = null!;
    public static Random Rnd = new();

    public static GameState State;
    public static bool BossMode;
    public static bool Done;

    public static Player Player = null!;

    public static int Counter;
    public static int Change;
    public static int CurCount;

    public static int Score;
    public static int Lives;
    public static int ShipsKilled;
    public static int Level;

    public static Camera Camera;
    public static int NewCamX, NewCamY;

    public static int TextNum;
    public static bool TextCreated;
    public static int TFCounter;

    public static int CurSelection = 4;
    public static int[] MainMenu = new int[5];
    public static int Prev = 4;

    public static GameText GameTextObj = null!;
    public static GameText TitleText = null!;
    public static GameText IdText = null!;

    public static BitmapFont BitmapFont1 = null!;  // numbers
    public static BitmapFont BitmapFont2 = null!;  // A-Z

    public static int Random(int max) => max <= 0 ? 0 : Rnd.Next(max);
}