using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Cowboy_Zombaliens
{
    public partial class Form4 : Form
    {
        //set up movement booleans. if the boolean is true, the player moves, if the boolean is false it will not.
        bool goLeft;
        bool goRight;
        bool goUp;
        bool goDown;

        // set up a vlaue for the scoring
        int score = 0;

        private Point pt;

        public Form4()
        {
            InitializeComponent();
        }

        private void keyisdown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.A)
            {
                goLeft = true;
            }

            if (e.KeyCode == Keys.D)
            {
                goRight = true;
            }

            if (e.KeyCode == Keys.W)
            {
                goUp = true;
            }
            if (e.KeyCode == Keys.S)
            {
                goDown = true;
            }

            if (e.KeyCode == Keys.R)
            {
                new Form4().Show();
                this.Hide();
            }
            //Returns to the main menu when pressing escape
            if (e.KeyCode == Keys.Escape)
            {
                new Form2().Show();
                this.Hide();
            }

        }

        public void AIMove(int x, int y, float speed)
        {
            float tx = x - pt.X;
            float ty = y - pt.Y;
            float length = (float)Math.Sqrt(tx * tx + ty * ty);
            if (length > speed)
            {

                // move towards the goal
                pt.X = (int)(pt.X + speed * tx / length);
                pt.Y = (int)(pt.Y + speed * ty / length);
            }
            else
            {
                // already there
                pt.X = x;
                pt.Y = y;
            }
        }

        private void keyisup(object sender, KeyEventArgs e)
        {
            //Get users input
            if (e.KeyCode == Keys.A)
            {
                goLeft = false;
            }

            if (e.KeyCode == Keys.D)
            {
                goRight = false;
            }

            if (e.KeyCode == Keys.W)
            {
                goUp = false;
            }

            if (e.KeyCode == Keys.S)
            {
                goDown = false;
            }

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (Player.Bounds.IntersectsWith(pbxEnemy.Bounds))
            {
                timer1.Stop(); //stops the timer to prevent game from running
                MessageBox.Show("A Cowboy Zombalien has eaten your brain.\nYour final score is " + score, "GAME OVER!"); //displays game over menu
                new Form2().Show();
                this.Hide();
            }

            //get the current player location before movement occurs
            int CurrentPlayerLocationX = Player.Top;
            int CurrentPlayerLocationY = Player.Left;

            //player moves based on which key is pressed
            if (goLeft)
            {
                Player.Left -= 5;
            }
            if (goRight)
            {
                Player.Left += 5;
            }
            if (goUp)
            {
                Player.Top -= 5;
            }
            if (goDown)
            {
                Player.Top += 5;
            }

            //Get the players new position
            int NewPlayerLocationX = Player.Location.X;
            int NewPlayerLocationY = Player.Location.Y;

            foreach (Control x in this.Controls)
            {
                //tests if the player is touching a wall
                if (x is PictureBox && x.Tag == "wall")
                {
                    if (Player.Bounds.IntersectsWith(x.Bounds))
                    {
                        //moves the player out of the wall
                        Player.Top = CurrentPlayerLocationX;
                        Player.Left = CurrentPlayerLocationY;
                    }
                }
                //Checks if the player has picked up a coin
            }
            foreach (Control x in this.Controls)
            {

                if (x is PictureBox && x.Tag == "coin")
                {
                    if (Player.Bounds.IntersectsWith(x.Bounds))
                    {
                        Random random = new System.Random();
                        int RandomXLocation = random.Next(10, 1550); //returns a random X co-ord
                        int RandomYLocation = random.Next(10, 850); //returns a random Y co-ord

                        x.Top = RandomYLocation; //moves coin to the random co-ords above
                        x.Left = RandomXLocation; //moves coin to the random co-ords

                        score = score + 10;

                    }
                }
                //Checks if the player has picked up a diamond
                if (x is PictureBox && x.Tag == "diamond")
                {
                    if (Player.Bounds.IntersectsWith(x.Bounds))
                    {
                        Random random = new System.Random();
                        int RandomXLocation = random.Next(10, 1550); //returns a random X co-ord
                        int RandomYLocation = random.Next(10, 850); //returns a random Y co-ord

                        x.Top = RandomYLocation; //moves the diamond to the random co-ords above
                        x.Left = RandomXLocation; //moves the diamond to the random co-ords above

                        score = score + 125; //increases score
                    }
                }

                lblScore.Text = "Score: " + score;
            }
            pbxEnemy.AIMove(100, 100, 0.5f);
        }


    }
}

//private void Form4_Load(object sender, EventArgs e)
//{

//}

//private void lblScore_Click(object sender, EventArgs e)
//{

//}

//private void Player_Click(object sender, EventArgs e)
//{

//}