using System;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Threading;
using System.Threading;

namespace SpaceInvaders
{
    class _8080
    {
        private CPU cpu = new CPU();
        private MainForm MainForm = new MainForm();

        public void StartEmulator()
        {
            cpu.initialiseEmulator(); // Reset

            LoadProgram("invaders.rom"); // Load ROM

            cpu.emulateCPU();
        }

        private bool LoadProgram(string filename)
        {
            Console.WriteLine("\nLoading: " + filename + "\n");
            //Initialize();  //reset

            //load file
            byte[] loadedProgramBytes = null;
            try
            {
                loadedProgramBytes = File.ReadAllBytes(filename);
            }
            catch (Exception Ex)
            {
                Debug.WriteLine(Ex.ToString());
            }

            //verify file is not empty
            if (loadedProgramBytes == null)
            {
                Debug.WriteLine("Error loading program.  The byte array loaded is null.");
                return false;
            }

            int lSize = loadedProgramBytes.Count();

            for (int i = 0; i < lSize; ++i)
            {
                cpu.memory[i] = loadedProgramBytes[i]; // Store file into memory.
            }

            Debug.WriteLine("ROM loaded in successfully.\n");
            return true;
        }

        private void updateScreen(int addr, int val)
        {
            int x = addr >> 5;
            int y = 255 - ((addr & 0x1f) << 3);

            for (int bit = 1; bit <= 128; bit <<= 1)
            {
                //screenBuffer.SetPixel(x, y--, (bit & val) != 0 ? Color.White : Color.Black);
            }

            //Bitmap clone = (Bitmap)screenBuffer.Clone();
            //MainForm.pictureBox1.BackgroundImage = clone;
        }

    }
}