using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using AcknexWrapper;

namespace ButtonExample
{
    class Program
    {
        private static BMAP button1On;
        private static BMAP button1Off;
        private static BMAP button1Over;
        private static PANEL mainPanel;

        private static IEnumerable<ScheduleMethod> buttonClick(double p)
        {
            Console.Write("button clicked");
            yield break;
        }

        private static IEnumerable<ScheduleMethod> buttonLeave(double p)
        {
            Console.WriteLine("mouse left button");
            yield break;
        }

        private static IEnumerable<ScheduleMethod> buttonOver(double p)
        {
            Console.WriteLine("mouse is over the button");
            yield break;
        }

        private static void CreatePushButton()
        {
            // create BMAPS for button (and change their color)
            Program.button1On =
                BMAP.bmap_createblack(200, 200, 32);
            Program.button1Off =
                BMAP.bmap_createblack(200, 200, 32);
            Program.button1Over =
                BMAP.bmap_createblack(200, 200, 32);

            Program.button1On.bmap_fill(new Color(200, 0, 0), 100);
            Program.button1Off.bmap_fill(new Color(100, 0, 0), 100);
            Program.button1Over.bmap_fill(new Color(150, 0, 0), 100);

            // create a button in the panel
            Program.mainPanel.pan_setbutton(
                0,
                1,
                50,
                50,
                Program.button1On,
                Program.button1Off,
                Program.button1Over,
                Program.button1On,
                Program.buttonClick,
                Program.buttonLeave,
                Program.buttonOver);
        }

        //the main method, called by the scheduler
        private static IEnumerable<ScheduleMethod> myMainMethod()
        {
            // create the main panel and make it visible
            Program.mainPanel =
                PANEL.pan_create(null, 1);
            Program.mainPanel.SHOW = true;
            Program.mainPanel.size_x = EngVar.screen_size.x;
            Program.mainPanel.size_y = EngVar.screen_size.y;

            // Shows how to create a simple push button and assign functions to it
            Program.CreatePushButton();

            // use mouse !!
            EngVar.mouse_mode = 4;

            yield break;
        }

        static void Main(string[] args)
        {
            //open the engine
            EngFun.engine_open(null, null);

            //start the scheduler
            Scheduler.StartScheduler(myMainMethod);
        }
    }
}