source: 2012/27/DenisZ/TheDungeonGame/TheDungeonGame/TheDungeonGame/TheDungeonGame.cs @ 3563

using System;
using System.Collections.Generic;
using Jypeli;
using Jypeli.Assets;
using Jypeli.Controls;
using Jypeli.Effects;
using Jypeli.Widgets;
using MathHelper;
using Entity;
using Rooms;
using Gui;

public class TheDungeonGame : PhysicsGame
{
    public const double ROOMTHICKNESS = 60;
    public const double ROOMWIDTH = 800 - ROOMTHICKNESS;
    public const double ROOMHEIGHT = 450;

    public static Vector roomSize = new Vector(ROOMWIDTH, ROOMHEIGHT);
    private Player player;
    public Player Player { get { return player; } }
    private LevelGenerator generator;
    public LevelGenerator LevelGen { get { return generator; } }

    private Vector cameraPosMission, cameraVelocity, newPos, currentPos;
    private bool moveCamera = false;

    public Image playerPic = LoadImage("player");
    public List<Image> levelTopBottoms = new List<Image>();
    public List<Image> levelLeftRights = new List<Image>();
    public List<Image> levelBackGrounds = new List<Image>();
    public List<Image> objectTextures = new List<Image>();
    public InGameGui gui;

    public override void Begin()
    {
        IsMouseVisible = true;
        SetWindowSize(800, 600);
        Level.Width = ROOMWIDTH * 20;
        Level.Height = ROOMHEIGHT * 20;
        setupLevelTextures(1);
        setupObjectTextures();
        
        

        generator = new LevelGenerator(this, Level.Size, new Vector(20, 20));
        generator.generateRandomLevel(5, 10);
        generator.buildDungeon();
        Room centerRoom = generator.getRoomAt((int)(generator.CenterRoom.X), (int)(generator.CenterRoom.Y));
        Camera.Position = centerRoom.Position + new Vector(ROOMWIDTH / 2 + ROOMTHICKNESS / 2, -ROOMHEIGHT / 2 + ROOMTHICKNESS / 4);
        //Camera.ZoomToLevel();

        player = new Player(this, Vector.Zero, playerPic);
        setupPlayer();
        AddCollisionHandler(player, player.performCollision);
        AddCollisionHandler(player, "Item", player.handleItemPickup);


        gui = new InGameGui(this);
        Add(gui);

        Keyboard.Listen(Key.Escape, ButtonState.Pressed, Exit, "Lopeta peli");
        Keyboard.Listen(Key.R, ButtonState.Pressed, regenerateLevel, null);
    }

    private void setupLevelTextures(int levels)
    {
        for (int i = 1; i <= levels; i++)
        {
            levelTopBottoms.Add(LoadImage("level"+i+"/topBottom"));
            levelLeftRights.Add(LoadImage("level"+i+"/leftRight"));
            levelBackGrounds.Add(LoadImage("level"+i+"/levelBackground"));
        }
    }

    private void setupObjectTextures()
    {
        objectTextures.Add(LoadImage("objects/door_closed"));
        //objectTextures.Add(LoadImage("objects/door_open"));
    }

    public Image getLeftRightWall(int level)
    {
        return levelLeftRights[level - 1];
    }

    public Image getTopBottomWall(int level)
    {
        return levelTopBottoms[level - 1];
    }

    public Image getLevelBackground(int level)
    {
        return levelBackGrounds[level - 1];
    }

    public void moveToRoom(Room room, int dir)
    {
        currentPos = player.currentRoom.Position + new Vector(ROOMWIDTH / 2 + ROOMTHICKNESS / 2, -ROOMHEIGHT / 2 + ROOMTHICKNESS / 4);
        newPos = room.Position + new Vector(ROOMWIDTH / 2 + ROOMTHICKNESS / 2, -ROOMHEIGHT / 2 + ROOMTHICKNESS / 4);
        moveCameraTo(newPos - currentPos);
        player.Position = player.currentRoom.getDoor(dir).Position + RoomDirection.getOffsetFromWorldDir(dir) * 130;
    }

    public void moveCameraTo(Vector pos)
    {
        cameraPosMission = pos;
        cameraVelocity = pos * 1.5;
        moveCamera = true;
    }

    private void moveCameraPart()
    {
        Camera.Velocity = cameraVelocity;
        Vector remainingLenght = Camera.Position - newPos;
        if (Math.Abs((int)remainingLenght.X) < 20 && Math.Abs((int)remainingLenght.Y) < 20)
        {
            cameraPosMission = Vector.Zero;
            cameraVelocity = Vector.Zero;
            Camera.Velocity = cameraVelocity;
            Camera.Position = newPos;
            moveCamera = false;
        }
    }

    private void setupPlayer()
    {
        player.Position = generator.getRoomAt(generator.CenterRoom).Position + new Vector(ROOMWIDTH / 2, -ROOMHEIGHT / 2);
        player.currentRoom = generator.getRoomAt(generator.CenterRoom);
        Add(player, 1);
    }

    private void regenerateLevel()
    {
        generator.destroyDungeon();
        generator = new LevelGenerator(this, Level.Size, new Vector(20, 20));
        generator.generateRandomLevel(10, 15);
        generator.buildDungeon();
        player.currentRoom = generator.getRoomAt(generator.CenterRoom);
    }

    int errorAmount = 0;
    protected override void Update(Time time)
    {
        try  // Tapa pakottaa Updatea toimimaan LevelGeneratorin kanssa
        {
            base.Update(time);
        }
        catch (FormatException) // Kaatuu tähän melkein kokoajan kun yrittää luoda tasoa. Mun koodi liian "likainen", tai hidas?
        {
            if (errorAmount > 50) // Virheitä voi tulla aika monta samaan aikaan, joten tehdään raja, jolloin regeneroidaan leveli
            {
                regenerateLevel();
                errorAmount = 0;
            }
            errorAmount++;
            return; // Skipataan "virheelisiä" tickea ja huijataan peliä niin kuin pahat merimiehet (dirty pirates, Arr)
        }
        if (moveCamera)
        {
            moveCameraPart();
        }

        player.Update(time);
    }
}