using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Diagnostics;

namespace Battleshipv3
{
    public partial class Level1 : Form
    {
        List<Button> playerShips;
        List<Button> enemyShips;
        Random rand = new Random();
        int playerShipsNo = 3;
        int enemyShipsNo = 3;
        int rounds = 50;
        int playerScore = 0;
        int enemyScore = 0;


        public Level1()
        {
            InitializeComponent();
            Attack.Hide();
            playerShips = new List<Button> { a1, a2, a3, a4, a5, b1, b2, b3, b4, b5, c1, c2, c3, c4, c5, d1, d2, d3, d4, d5, e1, e2, e3, e4, e5 };
            enemyShips = new List<Button> { w1, w2, w3, w4, w5, x1, x2, x3, x4, x5, y1, y2, y3, y4, y5, z1, z2, z3, z4, z5, q1, q2, q3, q4, q5 };
            enemyPositionPicker.Start();
            for (int i = 0; i < enemyShips.Count; i++)
            {
                enemyShips[i].Tag = null;
            }
        }

        //enemy chooses a random position where to attack the player
        private void EnemyAttackPlayer(object sender, EventArgs e)
        {
            if (playerShips.Count > 0 && rounds > 0)
            {
                rounds--;
                int index = rand.Next(playerShips.Count);
                if(playerShips[index].Tag == "playership")
                {
                    playerShips[index].Enabled = false;
                    playerShips[index].BackgroundImage = ((System.Drawing.Image)(Properties.Resources.hh));
                    playerShips.RemoveAt(index);
                    enemyScore++;
                    enemyPlaytimer.Stop();
                }
                else
                {
                    playerShips[index].Enabled = false;
                    playerShips[index].BackgroundImage = ((System.Drawing.Image)(Properties.Resources.miss2));
                    playerShips.RemoveAt(index);
                    enemyPlaytimer.Stop();
                }
            }

            if(rounds < 1 || playerScore == 3 || enemyScore == 3)
            {
                if (playerScore > enemyScore)
                    MessageBox.Show("You won!!!", "Winning");

                if(playerScore == enemyScore)
                    MessageBox.Show("It's a draw!", "Draw");

                if (playerScore < enemyScore)
                { for(int i = 0; i < enemyShips.Count; i++)
                    {
                        if(enemyShips[i].Tag == "enemyship")
                        {
                            enemyShips[i].BackgroundImage = ((System.Drawing.Image)(Properties.Resources.hh));
                        }
                    }
                    MessageBox.Show("You lost!", "Losing");
                }
            }

        }

        //enemy places ships randomly
        private void EnemyPicksPosition(object sender, EventArgs e)
        {

            int index = rand.Next(enemyShips.Count);
            if(enemyShips[index].Enabled == true && enemyShips[index].Tag == null)
            {
                enemyShips[index].Tag = "enemyship";
                enemyShipsNo--;
            }
            else
                index = rand.Next(enemyShips.Count);

            if (enemyShipsNo < 1)
                enemyPositionPicker.Stop();
        }

        //player picks position of his ships
        private void PlayerPicksPosition(object sender, EventArgs e)
        {
            if(playerShipsNo > 0)
            {
                var button = (Button)sender;
                button.Enabled = false;
                button.Tag = "playership";
                button.BackColor = System.Drawing.Color.DarkSlateBlue;
                playerShipsNo--;
            }

            if(playerShipsNo == 0)
            {
                Message.Hide();
                Attack.Show();
            }

        }

        //player attacks enemy
        private void attackEnemyPosition(object sender, EventArgs e)
        {
            var button = (Button)sender;
            Attack.Show();
            if (button.Enabled && rounds > 0)
            {
                rounds--;

                if (button.Tag == "enemyship")
                {
                    button.Enabled = false;
                    button.BackColor = System.Drawing.Color.DarkSlateBlue;
                    button.BackgroundImage = ((System.Drawing.Image)(Properties.Resources.hh));
                    playerScore++;
                    enemyPlaytimer.Start();
                }
                else
                {
                    button.Enabled = false;
                    button.BackgroundImage = ((System.Drawing.Image)(Properties.Resources.miss2));
                    enemyPlaytimer.Start();
                }
            }
        }
    }
}