using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace game
{
	
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{	
		int flag;
		private int count;
		private int[] numbers = new int[16];
//		string[] numbers_d = new string[16];
//		string[] strNumbers = new string[16];
		private System.Windows.Forms.Button b1;
		private System.Windows.Forms.Button b2;
		private System.Windows.Forms.Button b3;
		private System.Windows.Forms.Button b4;
		private System.Windows.Forms.Button b5;
		private System.Windows.Forms.Button b6;
		private System.Windows.Forms.Button b7;
		private System.Windows.Forms.Button b8;
		private System.Windows.Forms.Button b9;
		private System.Windows.Forms.Button b10;
		private System.Windows.Forms.Button b11;
		private System.Windows.Forms.Button b12;
		private System.Windows.Forms.Button b13;
		private System.Windows.Forms.Button b14;
		private System.Windows.Forms.Button b15;
		private System.Windows.Forms.Button b16;
		private System.Windows.Forms.TextBox t1;
		private System.Windows.Forms.Label lbl1;
		private System.Windows.Forms.Label lbl2;
		private System.Windows.Forms.Label lbl3;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.numbers[0] = 15;
			this.numbers[1] = 14;
			this.numbers[2] = 13;
			this.numbers[3] = 12;
			this.numbers[4] = 11;
			this.numbers[5] = 10;
			this.numbers[6] = 9;
			this.numbers[7] = 8;
			this.numbers[8] = 7;
			this.numbers[9] = 6;
			this.numbers[10] = 5;
			this.numbers[11] = 4;
			this.numbers[12] = 3;
			this.numbers[13] = 2;
			this.numbers[14] = 1;
			this.numbers[15] = -1;
			this.count = 0;
			this.flag = 0;
			this.lbl1 = new System.Windows.Forms.Label();
			this.lbl2 = new System.Windows.Forms.Label();
			this.lbl3 = new System.Windows.Forms.Label();
			this.b11 = new System.Windows.Forms.Button();
			this.b10 = new System.Windows.Forms.Button();
			this.b13 = new System.Windows.Forms.Button();
			this.b12 = new System.Windows.Forms.Button();
			this.b15 = new System.Windows.Forms.Button();
			this.b16 = new System.Windows.Forms.Button();
			this.b8 = new System.Windows.Forms.Button();
			this.b9 = new System.Windows.Forms.Button();
			this.b14 = new System.Windows.Forms.Button();
			this.t1 = new System.Windows.Forms.TextBox();
			this.b1 = new System.Windows.Forms.Button();
			this.b2 = new System.Windows.Forms.Button();
			this.b3 = new System.Windows.Forms.Button();
			this.b4 = new System.Windows.Forms.Button();
			this.b5 = new System.Windows.Forms.Button();
			this.b6 = new System.Windows.Forms.Button();
			this.b7 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// lbl1
			// 
			this.lbl1.Font = new System.Drawing.Font("Comic Sans MS", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lbl1.Location = new System.Drawing.Point(16, 192);
			this.lbl1.Name = "lbl1";
			this.lbl1.Size = new System.Drawing.Size(280, 16);
			this.lbl1.TabIndex = 0;
			this.lbl1.Text = "Congrats!! You have completed the game !!";
			this.lbl1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			this.lbl1.Visible = false;
			// 
			// lbl2
			// 
			this.lbl2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lbl2.Location = new System.Drawing.Point(8, 160);
			this.lbl2.Name = "lbl2";
			this.lbl2.Size = new System.Drawing.Size(96, 24);
			this.lbl2.TabIndex = 0;
			this.lbl2.Text = "Number of hits :";
			this.lbl2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// lbl3
			// 
			this.lbl3.Location = new System.Drawing.Point(104, 160);
			this.lbl3.Name = "lbl3";
			this.lbl3.Size = new System.Drawing.Size(24, 23);
			this.lbl3.TabIndex = 0;
			this.lbl3.Text = "0";
			this.lbl3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// b11
			// 
			this.b11.Location = new System.Drawing.Point(152, 80);
			this.b11.Name = "b11";
			this.b11.Size = new System.Drawing.Size(30, 30);
			this.b11.TabIndex = 0;
			this.b11.Text = "5";
			// 
			// b10
			// 
			this.b10.Location = new System.Drawing.Point(120, 80);
			this.b10.Name = "b10";
			this.b10.Size = new System.Drawing.Size(30, 30);
			this.b10.TabIndex = 0;
			this.b10.Text = "6";
			// 
			// b13
			// 
			this.b13.Location = new System.Drawing.Point(88, 112);
			this.b13.Name = "b13";
			this.b13.Size = new System.Drawing.Size(30, 30);
			this.b13.TabIndex = 0;
			this.b13.Text = "3";
			// 
			// b12
			// 
			this.b12.Location = new System.Drawing.Point(184, 80);
			this.b12.Name = "b12";
			this.b12.Size = new System.Drawing.Size(30, 30);
			this.b12.TabIndex = 0;
			this.b12.Text = "4";
			// 
			// b15
			// 
			this.b15.Location = new System.Drawing.Point(152, 112);
			this.b15.Name = "b15";
			this.b15.Size = new System.Drawing.Size(30, 30);
			this.b15.TabIndex = 0;
			this.b15.Text = "1";
			// 
			// b16
			// 
			this.b16.Location = new System.Drawing.Point(184, 112);
			this.b16.Name = "b16";
			this.b16.Size = new System.Drawing.Size(30, 30);
			this.b16.TabIndex = 0;
			this.b16.Text = "*";
			this.b16.Visible = false;
			
			// 
			// b8
			// 
			this.b8.Location = new System.Drawing.Point(184, 48);
			this.b8.Name = "b8";
			this.b8.Size = new System.Drawing.Size(30, 30);
			this.b8.TabIndex = 0;
			this.b8.Text = "8";
			// 
			// b9
			// 
			this.b9.Location = new System.Drawing.Point(88, 80);
			this.b9.Name = "b9";
			this.b9.Size = new System.Drawing.Size(30, 30);
			this.b9.TabIndex = 0;
			this.b9.Text = "7";
			// 
			// b14
			// 
			this.b14.Location = new System.Drawing.Point(120, 112);
			this.b14.Name = "b14";
			this.b14.Size = new System.Drawing.Size(30, 30);
			this.b14.TabIndex = 0;
			this.b14.Text = "2";
			// 
			// t1
			// 
			this.t1.Location = new System.Drawing.Point(112, 328);
			this.t1.Name = "t1";
			this.t1.TabIndex = 0;
			this.t1.Text = "";
			this.t1.KeyDown += new System.Windows.Forms.KeyEventHandler(this.key_press);
			// 
			// b1
			// 
			this.b1.Location = new System.Drawing.Point(88, 16);
			this.b1.Name = "b1";
			this.b1.Size = new System.Drawing.Size(30, 30);
			this.b1.TabIndex = 0;
			this.b1.Text = "15";
			// 
			// b2
			// 
			this.b2.Location = new System.Drawing.Point(120, 16);
			this.b2.Name = "b2";
			this.b2.Size = new System.Drawing.Size(30, 30);
			this.b2.TabIndex = 0;
			this.b2.Text = "14";
			// 
			// b3
			// 
			this.b3.Location = new System.Drawing.Point(152, 16);
			this.b3.Name = "b3";
			this.b3.Size = new System.Drawing.Size(30, 30);
			this.b3.TabIndex = 0;
			this.b3.Text = "13";
			// 
			// b4
			// 
			this.b4.Location = new System.Drawing.Point(184, 16);
			this.b4.Name = "b4";
			this.b4.Size = new System.Drawing.Size(30, 30);
			this.b4.TabIndex = 0;
			this.b4.Text = "12";
			// 
			// b5
			// 
			this.b5.Location = new System.Drawing.Point(88, 48);
			this.b5.Name = "b5";
			this.b5.Size = new System.Drawing.Size(30, 30);
			this.b5.TabIndex = 0;
			this.b5.Text = "11";
			// 
			// b6
			// 
			this.b6.Location = new System.Drawing.Point(120, 48);
			this.b6.Name = "b6";
			this.b6.Size = new System.Drawing.Size(30, 30);
			this.b6.TabIndex = 0;
			this.b6.Text = "10";
			// 
			// b7
			// 
			this.b7.Location = new System.Drawing.Point(152, 48);
			this.b7.Name = "b7";
			this.b7.Size = new System.Drawing.Size(30, 30);
			this.b7.TabIndex = 0;
			this.b7.Text = "9";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(304, 221);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.lbl3,
																		  this.lbl2,
																		  this.lbl1,
																		  this.t1,
																		  this.b16,
																		  this.b15,
																		  this.b14,
																		  this.b13,
																		  this.b12,
																		  this.b11,
																		  this.b10,
																		  this.b9,
																		  this.b8,
																		  this.b7,
																		  this.b6,
																		  this.b5,
																		  this.b4,
																		  this.b3,
																		  this.b2,
																		  this.b1});
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "Game";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
			
		}

		
		private void key_press(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (flag ==0)
			{
				string keyId = e.KeyCode.ToString();
				switch (keyId)
				{
					case "Right":LeftPress();
						break;
					case "Left":RightPress();
						break;
					case "Down":UpPress();
						break;
					case "Up":DownPress();
						break;
				}
			}
		}
		private void assign()
		{
			if(numbers[0] != -1)
				b1.Text = numbers[0].ToString();
			else
			{
					b1.Text = "*";
					b1.Visible = false;
			}
			if(numbers[1] != -1)
				b2.Text = numbers[1].ToString();
			else
			{
				b2.Text = "*";
				b2.Visible = false;
			}
			if(numbers[2] != -1)
				b3.Text = numbers[2].ToString();
			else
			{
				b3.Text = "*";
				b3.Visible = false;
			}
			if(numbers[3] != -1)
				b4.Text = numbers[3].ToString();
			else
			{
				b4.Text = "*";
				b4.Visible = false;
			}
			if(numbers[4] != -1)
				b5.Text = numbers[4].ToString();
			else
			{
				b5.Text = "*";
				b5.Visible = false;
			}
			if(numbers[5] != -1)
				b6.Text = numbers[5].ToString();
			else
			{
				b6.Text = "*";
				b6.Visible = false;
			}
			if(numbers[6] != -1)
				b7.Text = numbers[6].ToString();
			else
			{
				b7.Text = "*";
				b7.Visible = false;
			}
			if(numbers[7] != -1)
				b8.Text = numbers[7].ToString();
			else
			{
				b8.Text = "*";
				b8.Visible = false;
			}
			if(numbers[8] != -1)
				b9.Text = numbers[8].ToString();
			else
			{
				b9.Text = "*";
				b9.Visible = false;
			}
			if(numbers[9] != -1)
				b10.Text = numbers[9].ToString();
			else
			{
				b10.Text = "*";
				b10.Visible = false;
			}
			if(numbers[10] != -1)
				b11.Text = numbers[10].ToString();
			else
			{
				b11.Text = "*";
				b11.Visible = false;
			}
			if(numbers[11] != -1)
				b12.Text = numbers[11].ToString();
			else
			{
				b12.Text = "*";
				b12.Visible = false;
			}
			if(numbers[12] != -1)
				b13.Text = numbers[12].ToString();
			else
			{
				b13.Text = "*";
				b13.Visible = false;
			}
			if(numbers[13] != -1)
				b14.Text = numbers[13].ToString();
			else
			{
				b14.Text = "*";
				b14.Visible = false;
			}
			if(numbers[14] != -1)
				b15.Text = numbers[14].ToString();
			else
			{
				b15.Text = "*";
				b15.Visible = false;
			}
			if(numbers[15] != -1)
				b16.Text = numbers[15].ToString();
			else
			{
				b16.Text = "*";
				b16.Visible = false;
			}

			
		}
		public void RightPress()
		{
			int chk;
			int loc;
			int swap;
			loc = locator();
			if (((loc+1)%4) == 0)
				return;
			swap = numbers[loc+1];
			numbers[loc+1] = -1;
			numbers[loc] = swap;
			MakeVisible();
			assign();
			chk = CheckForCompletion();
			lbl3.Text = count.ToString();
			if (chk == 0)
			{
				count++;
				lbl3.Text = count.ToString();
			}
			if (chk == 1)
			{
				flag = 1;
				lbl1.Visible = true;
			}
		}
		public void LeftPress()
		{
			int chk;
			int loc;
			int swap;
			loc = locator();
			if ((loc%4) == 0)
				return;
			swap = numbers[loc-1];
			numbers[loc-1] = -1;
			numbers[loc] = swap;
			MakeVisible();
			assign();
			chk = CheckForCompletion();
			lbl3.Text = count.ToString();
			if (chk == 0)
			{
				count++;
				lbl3.Text = count.ToString();
			}
			if (chk == 1)
			{
				flag = 1;
				lbl1.Visible = true;
			}
			
		}
		public void UpPress()
		{
			int chk;
			int loc;
			int swap;
			loc = locator();
			if (loc<=3)
				return;
			swap = numbers[loc-4];
			numbers[loc-4] = -1;
			numbers[loc] = swap;
			MakeVisible();
			assign();
			chk = CheckForCompletion();
			lbl3.Text = count.ToString();
			if (chk == 0)
			{
				count++;
				lbl3.Text = count.ToString();
			}
			if (chk == 1)
			{
				flag = 1;
				lbl1.Visible = true;
			}
			
		}
		public void DownPress()
		{
			int chk;
			int loc;
			int swap;
			loc = locator();
			if (loc>11)
				return;
			swap = numbers[loc+4];
			numbers[loc+4] = -1;
			numbers[loc] = swap;
			MakeVisible();
			assign();
			chk = CheckForCompletion();
			lbl3.Text = count.ToString();
			if (chk == 0)
			{
				count++;
				lbl3.Text = count.ToString();
			}
			if (chk == 1)
			{
				flag = 1;
				lbl1.Visible = true;
			}
			
		}
		private int locator()
		{
			int i;
			for (i=0; i<=15; i++)
			{
				if (numbers[i] == -1)
                    break;	
				else continue;
			}
			return i;
		}
		private int CheckForCompletion()
		{
			int j;
			for (int i=0; i<=15; i++)
			{
				if (numbers[i] == -1)
					numbers[i] = 16; 
			}
			for (j=0; j<=14; j++)
			{
				if (numbers[j]>numbers[j+1])
					break;
			}
			if (j == 15)
				return 1;
			else
			{
				for (int i=0; i<=15; i++)
				{
					if (numbers[i] == 16)
						numbers[i] = -1; 
				}
				return 0;
			}
			
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
			Form1 f = new Form1();
			Application.Run(f);
		}
		private void MakeVisible()
		{
			b1.Visible = true;
			b2.Visible = true;
			b3.Visible = true;
			b4.Visible = true;
			b5.Visible = true;
			b6.Visible = true;
			b7.Visible = true;
			b8.Visible = true;
			b9.Visible = true;
			b10.Visible = true;
			b11.Visible = true;
			b12.Visible = true;
			b13.Visible = true;
			b14.Visible = true;
			b15.Visible = true;
			b16.Visible = true;
		}
		

		

	}
	
}