using System;
using System.Windows.Forms;

namespace Digger
{

    class Player : ICreature
    {

        CreatureCommand Move(int x, int y, int dx, int dy)
        {
            var newX = x + dx;
            var newY = y + dy;
            var result = new CreatureCommand();
            if (newX < Game.MapWidth && newX >= 0 &&
               newY < Game.MapHeight && newY >= 0)
                return new CreatureCommand() { DeltaX = dx, DeltaY = dy };
            return new CreatureCommand();
        }

        public CreatureCommand Act(int x, int y)
        {
            switch (Game.KeyPressed)
            {
                case Keys.Left: return Move(x, y, -1, 0);
                case Keys.Right: return Move(x, y, 1, 0);
                case Keys.Up: return Move(x, y, 0, -1);
                case Keys.Down: return Move(x, y, 0, 1);
            }
            return new CreatureCommand();
        }

        public bool DeadInConflict(ICreature enemy)
        {
            return false;
        }

        public int GetDrawingPriority()
        {
            return 0;
        }

        public string GetImageFileName()
        {
            return "Digger.png";
        }
    }
    class Terrain : ICreature
    {
        public CreatureCommand Act(int x, int y)
        {
            return new CreatureCommand();
        }

        public bool DeadInConflict(ICreature enemy)
        {
            return enemy is Player;
        }

        public int GetDrawingPriority()
        {
            return 1;
        }

        public string GetImageFileName()
        {
            return "Terrain.png";
        }
    }
}






















using System.Windows.Forms;

namespace Digger
{

    class Player : ICreature
    {

        CreatureCommand Move(int x, int y, int dx, int dy)
        {
            var newX = x + dx;
            var newY = y + dy;
            var result = new CreatureCommand();
            if (newX < Game.MapWidth && newX >= 0 &&
               newY < Game.MapHeight && newY >= 0 &&
               !(Game.Map[newX,newY] is Sack))
                return new CreatureCommand() { DeltaX = dx, DeltaY = dy };
            return new CreatureCommand();
        }

        public CreatureCommand Act(int x, int y)
        {
            switch (Game.KeyPressed)
            {
                case Keys.Left: return Move(x, y, -1, 0);
                case Keys.Right: return Move(x, y, 1, 0);
                case Keys.Up: return Move(x, y, 0, -1);
                case Keys.Down: return Move(x, y, 0, 1);
            }
            return new CreatureCommand();
        }

        public bool DeadInConflict(ICreature enemy)
        {
            return enemy is Sack;
        }

        public int GetDrawingPriority()
        {
            return 0;
        }

        public string GetImageFileName()
        {
            return "Digger.png";
        }
    }
    class Terrain : ICreature
    {
        public CreatureCommand Act(int x, int y)
        {
            return new CreatureCommand();
        }

        public bool DeadInConflict(ICreature enemy)
        {
            return enemy is Player;
        }

        public int GetDrawingPriority()
        {
            return 1;
        }

        public string GetImageFileName()
        {
            return "Terrain.png";
        }
    }
    class Sack : ICreature
    {

        int falledFor;
        public CreatureCommand Act(int x, int y)
        {
            if (IsTileSolid(x, y + 1) || DidPlayerCatchedIt(x, y))
            {
                falledFor = 0;
                return new CreatureCommand();
            }
            if (IsTileSolid(x, y + 2) && falledFor > 0)
                return new CreatureCommand() { DeltaY = 1, TransformTo = new Gold() };
            falledFor++;
            return new CreatureCommand() { DeltaY = 1 };
        }

        public bool DidPlayerCatchedIt(int x, int y)
        {
            return Game.Map[x, y + 1] is Player && falledFor == 0;
        }


        public bool IsTileSolid(int x, int y)
        {
            if (Game.MapHeight <= y) return true;
            var tile = Game.Map[x, y];
            return tile is Terrain || tile is Gold || tile is Sack;
        }

        public bool DeadInConflict(ICreature enemy)
        {
            return false;
            //return enemy is Terrain || enemy is Sack || enemy is Gold;

        }

        public int GetDrawingPriority()
        {
            return 1;
        }

        public string GetImageFileName()
        {
            return "Sack.png";
        }
    }
    class Gold : ICreature
    {
        //int value = 1;
        public CreatureCommand Act(int x, int y)
        {
            return new CreatureCommand();
        }

        public bool DeadInConflict(ICreature enemy)
        {
            if (enemy is Player)
            {
                Game.Scores += 10;
                return true;
            }
            return enemy is Gold;
        }

        public int GetDrawingPriority()
        {
            return 1;
        }

        public string GetImageFileName()
        {
            return "Gold.png";
        }
    }
}