I am trying to make a main menu in Windows Forms. When you click a label in the form, the XNA game should start playing.
But it didn't work.
my code in the program.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace _2DSpaceShooter
{
if WINDOWS || XBOX
static class Program
{
static void Main(string[] args)
{
Application.Run(new MainMenu());
}
}
endif
}
My code in the label click event
private void label1_Click(object sender, EventArgs e)
{
using (Game1 game = new Game1())
{
game.Run();
}
}
Please help me!!!
I am sorry for possible English mistakes (I am not American)
I don't know if you can do it, but if you can one of the simplest way is by using GameComponents. Making your game as a GC enables you to launch multiples parts of it at one time, without having issues with threads.
As #eudabash mentioned in the comment section, you'll need to do the game.Run() in a seperate thread:
Game1 game = new Game1();
Thread thread = new Thread(() =>
{
game.Run();
};
thread.Start();
or, if you're on .Net 4.0 (I think. Or even 3.5)
Game1 game = new Game1();
Task.Factory.StartNew(() =>
{
game.Run();
}
Optionally make 'game' a field in your Form1 class, so you can access it anywhere. Just make sure to only retrieve data from Game, and never edit the UI from within Game. Cross-thread operations and whatnot. If you need to, remember to invoke.
Related
MCVE is below. How do I avoid recursively calling StartGame() and DisplayEndScreen? One way is to loop over StartGame(), but this doesn't seem like an extensible solution, more of a hack. Another solution might be: when the user hits R to restart, return to the main menu and pass in the Enter key as input into the switch statement, somehow.
What's a good solution?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Demo
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Main Menu: Press Enter to start the game >>");
switch (Console.ReadKey(true).Key)
{
case ConsoleKey.Enter:
StartGame();
break;
// Other Menu Items
}
}
private static void StartGame()
{
// Do Game
DisplayEndScreen(); // NB: This causes recursion! I don't want this.
}
private static void DisplayEndScreen()
{
Console.WriteLine("Game Over! Select an option >> \n\n" +
"R:\tPlay again\n" +
"M:\tReturn to Main Menu\n" +
"Q:\tQuit");
switch (Console.ReadKey(true).Key)
{
case ConsoleKey.R:
StartGame(); // NB: This causes recursion! I don't want this.
break;
// Other Menu Items
}
}
}
}
Calling StartGame() inside StartGame() causes the recursion. The way to avoid it is simply not calling a method inside of itself.
I think the name of the functions are a bit confusing for your program, are you sure 'StartGame' is correctly describing what the function is doing? It seems more likely to be the actual game (game()?) itself. If the name instead was something that tells you that the game is actually running (as it looks like its doing), calling it again would make less sense for you.
Considering running a game, most basic solutions usually looks like this:
bool game = true;
while(game)
{
//game running
if(exit)
{
game = false;
}
}
I want to track the windows unlock event in a windows application. How is it done? What is the event used for that? Does I need to import any namespace for that?
While a user unlocks the windows, the application needs to do some tasks.
As posted in this StackOverflow answer: https://stackoverflow.com/a/604042/700926 you should take a look at the SystemEvents.SessionSwitch Event.
Sample code can be found in the referred answer as well.
I just took the code shown in the referred StackOverflow answer for a spin and it seems to work on Windows 8 RTM with .NET framework 4.5.
For your reference, I have included the complete sample code of the console application I just assembled.
using System;
using Microsoft.Win32;
// Based on: https://stackoverflow.com/a/604042/700926
namespace WinLockMonitor
{
class Program
{
static void Main(string[] args)
{
Microsoft.Win32.SystemEvents.SessionSwitch += new Microsoft.Win32.SessionSwitchEventHandler(SystemEvents_SessionSwitch);
Console.ReadLine();
}
static void SystemEvents_SessionSwitch(object sender, Microsoft.Win32.SessionSwitchEventArgs e)
{
if (e.Reason == SessionSwitchReason.SessionLock)
{
//I left my desk
Console.WriteLine("I left my desk");
}
else if (e.Reason == SessionSwitchReason.SessionUnlock)
{
//I returned to my desk
Console.WriteLine("I returned to my desk");
}
}
}
}
I am writing a game in XNA, and I have the login screen, which is windows form, and the game itself. I need to go from the login screen to the game, but when I try it says that i can't run more then one thred at the time. how can i solve this?
this is the login screen code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace ProtoType
{
public partial class SighIn : Form
{
public SighIn()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
if ((textBox1.Text.Equals("Developer")) && (textBox2.Text.Equals("poxus17")))
{
using (Game1 game = new Game1())
{
game.Run();
}
}
}
}
}
The XNA Game.Run method executes Application.Run which provides a message pump for the primary thread (UI thread).
At the point in time where your form is running and gets a button click, Application.Run is already executing (possibly through Form.ShowDialog). You cannot have two message pumps in the same thread, at the same time.
The solution is to allow Application.Run to finish, then call Game.Run.
Something like this:
Form form = new SignIn();
if (form.ShowDialog() == DialogResult.OK)
{
if (form.UserName =="Developer" && form.Password == "poxus17")
{
using (Game1 game = new Game1())
{
game.Run();
}
}
}
Now your form's button click handler can copy the textbox fields to properties (UserName, and Password) and set this.DialogResult = DialogResult.OK. This will close the form, completing the message pump started by ShowDialog, then, after verification, start a new message pump with Game.Run.
So im attempting to create a auto typer. And the problem is if i spam the message, And click the application to stop the spam it just freezes up. I as then told i need to use Threads. So i had a read around and this is what i came up with:
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;
using System.Threading;
namespace tf2trade
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public bool started = true;
private void spam()
{
string test = text1.Text;
Thread.Sleep(2000);
while (started == false)
{
foreach (char c in test)
{
SendKeys.Send(c.ToString());
}
SendKeys.Send("{ENTER}");
}
}
Thread test = new Thread(spam);
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
}
private void submit_Click(object sender, EventArgs e)
{
if (started == true)
{
started = false;
submit.Text = "Stop";
submit.Refresh();
spam();
}
else
{
started = true;
submit.Text = "Start";
}
}
}
}
Now this code gives me the error:
A field initializer cannot reference the non-static field, method, or property 'tf2trade.Form1.spam()'
What did i do wrong? :(
Thanks in advance,
Alana.
Honestly I wouldn't waste your time troubleshooting this error. Instead, consider using one of the existing approaches to writing multi-threaded applications in .NET . The technology you use will depend on the type of problem you are trying to solve. For short/quick tasks consider using:
thread pool
.net task library
If you are creating a "long" running task you could create 1 or more native threads, but I wouldn't recommend doing this until you have a better understanding of what you are doing. There are a lot of pitfalls. For example, A lot of developers think more threads equals better performance... this is not true.
REFERENCES
thread pool:
http://msdn.microsoft.com/en-us/library/system.threading.threadpool(v=vs.110).aspx
tasks: http://msdn.microsoft.com/en-us/library/dd460717(v=vs.110).aspx
native thread: http://msdn.microsoft.com/en-us/library/system.threading.thread(v=vs.110).aspx
I want to track the windows unlock event in a windows application. How is it done? What is the event used for that? Does I need to import any namespace for that?
While a user unlocks the windows, the application needs to do some tasks.
As posted in this StackOverflow answer: https://stackoverflow.com/a/604042/700926 you should take a look at the SystemEvents.SessionSwitch Event.
Sample code can be found in the referred answer as well.
I just took the code shown in the referred StackOverflow answer for a spin and it seems to work on Windows 8 RTM with .NET framework 4.5.
For your reference, I have included the complete sample code of the console application I just assembled.
using System;
using Microsoft.Win32;
// Based on: https://stackoverflow.com/a/604042/700926
namespace WinLockMonitor
{
class Program
{
static void Main(string[] args)
{
Microsoft.Win32.SystemEvents.SessionSwitch += new Microsoft.Win32.SessionSwitchEventHandler(SystemEvents_SessionSwitch);
Console.ReadLine();
}
static void SystemEvents_SessionSwitch(object sender, Microsoft.Win32.SessionSwitchEventArgs e)
{
if (e.Reason == SessionSwitchReason.SessionLock)
{
//I left my desk
Console.WriteLine("I left my desk");
}
else if (e.Reason == SessionSwitchReason.SessionUnlock)
{
//I returned to my desk
Console.WriteLine("I returned to my desk");
}
}
}
}