MessageClass.cs :  » Game » Killer-Instinct » KillerInstinct » C# / CSharp Open Source

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Drawing;
using Global;
using Global.GlobalClass;

namespace KillerInstinct{
  public class MessageClass
  {
    private enum MessageStates
    {
      NotDisplaying,
      PoppingUp,
      Displaying,
      PoppingDown
    }
    // current state of pop-up box
    private MessageStates      m_messageState  = MessageStates.NotDisplaying;
    private MapClass.MissionTypes  m_mission;
    private StringCollection    m_messageText  = new StringCollection();
    private int            m_width      = 150;
    private int            m_height    = 50;
    private int            m_posX;
    private int            m_posY;
    //
    public MessageClass()
    {
      m_posX = global.options.SCR_WIDTH - m_width;
      m_posY = global.options.SCR_HEIGHT;
    }
    // pop's new message onto screen (add)
    public void Popup(MapClass.MissionTypes mission)
    {
      m_mission = mission;
      // if a message is already popped-up, pop-down
      if (m_messageState == MessageStates.Displaying)
        m_messageState = MessageStates.PoppingDown;
      else
        m_messageState = MessageStates.PoppingUp;
    }
    private void FillMessageText()
    {
      // clear any old messages
      m_messageText.Clear();
      if (m_mission == MapClass.MissionTypes.KillAll)
      {
        m_messageText.Add("Kill All Enemies!");
      }
      // show mission counter (energy, score limit, time limit)
      else if (m_mission == MapClass.MissionTypes.TimeLimit)
      {
        m_messageText.Add("Countdown: " + (global.options.TimeLimit-(System.Environment.TickCount-global.options.GameStartTime)/1000));
      }
      // display how many things left to destroy
      else if (m_mission == MapClass.MissionTypes.Destroy)
      {
        m_messageText.Add("Countdown: " + (global.Map.DestroyTimeLimit-(System.Environment.TickCount-global.options.GameStartTime)/1000));
        m_messageText.Add("Mines to Destroy: " + global.Map.ObjectsLeftToDestroy);
      }
      // display which exits are available
      else if (m_mission == MapClass.MissionTypes.UseExit)
      {
        m_messageText.Add("Go" + global.Map.GetCurrentExits());
      }
    }
    public void Draw()
    {
      if (m_messageState != MessageStates.NotDisplaying)
      {
        switch (m_messageState)
        {
          case MessageStates.PoppingUp:
            m_posY--;
            if (m_posY < global.options.SCR_HEIGHT-m_height)
              m_messageState = MessageStates.Displaying;
            break;
          case MessageStates.Displaying:
            // update message text to be displayed
            FillMessageText();
            break;
          case MessageStates.PoppingDown:
            m_posY++;
            if (m_posY > global.options.SCR_HEIGHT)
            {
              m_messageState = MessageStates.PoppingUp;
              // update message text to be displayed
              FillMessageText();
            }
            break;
        }
        // only draw what can be drawn
        int newHeight = global.options.SCR_HEIGHT - m_posY;
        if (newHeight > 0)
        {
          // draw black box where information is written
          global.DC.DrawBox(m_posX, m_posY, m_width, newHeight, Color.Black, Color.Transparent);
          for (int i=0; i<m_messageText.Count; ++i)
          {
            global.DC.DrawText(m_posX+10, m_posY+(12*(i+1)), m_messageText[i], Color.Firebrick);
          }
        }
      }
    }
  }
}