Getting Integer Input

[Hiura]

I can't do your app for you.  :wink:

But a little sample :

Code: [Select]


main loop (window is open for example)

 event loop

  if (my_state is s0 and event is KeyPressed and the key is A) then

   my_state is s1

  end if

  if (my_state is s1 and event is TextEntred and the entred value is a number) then

   update my_string or whatever

    my_state is s2

  end if

 end event loop

end main loop


NB : you may do stuff outside event loop for some states.

[Wander]

OH!!! Hold on a second.

[Wander]

Okay! Here's what I got. Only problem is. Nothing is displaying on the screen still.

Code: [Select]

           // Press A : Add coords
            if (myState == s0 && (Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::A))
            {
                PressA = true;
                myState = s1;
            }
            if (myState == s1 && Event.Type == sf::Event::TextEntered)
            {
                // Handle ASCII characters only
                if (Event.Text.Unicode > 47 && Event.Text.Unicode < 58)
                {
                    XCoord += static_cast<int>(Event.Text.Unicode);
                    text.SetText(XCoord);
                    myState = s2;
                }
                else {
                    text.SetText("");
                }
            }

[Hiura]

This won't display anything, you have to use Display and Draw.

BTW, you may want to use some smarter names than s0 s1, and so on. It was only for the example.  :wink:

[Wander]

I do have a Draw and Display. I just didnt paste em.

Code: [Select]

bool PressA = false;
std::string XCoord;
sf::String text;


if (myState == s0 && (Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::A))
            {
                PressA = true;
                myState = s1;
            }
            if (myState == s1 && Event.Type == sf::Event::TextEntered)
            {
                // Handle ASCII characters only
                if (Event.Text.Unicode > 47 && Event.Text.Unicode < 58)
                {
                    XCoord += static_cast<int>(Event.Text.Unicode);
                    text.SetText(XCoord);
                    myState = s2;
                }
                else {
                    text.SetText("");
                }
            }


if (PressA == true)
   App.Draw(text);

App.Display();


EDIT: I added a cout statement into the if statement with static_cast and found out that the code never even enters that one. Why not?

[Hiura]

Maybe it's too small, out of screen, … I don't know. But you can use std::cout to check if it working.

[Wander]

I did. In my EDIT on the last post I said:

EDIT: I added a cout statement into the if statement with static_cast and found out that the code never even enters that one. Why not?

So, now I'm stuck...

[Hiura]

does «if (myState == s0 && (Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::A))» work ?

[Wander]

Yes. I have it where it says "ONE" for the first if statement, "TWO" for the second one and "THREE" for the third one.

It never makes it past "ONE"

[Hiura]

Very strange. Can you give us the whole main function ?

[Wander]

Sure.

Code: [Select]

int main()
{
    //sf::Thread PrintFile(&PrintFile);
    //PrintFile.Launch();

    //ifstream inFile; // Declare inFile
    //ofstream outFile; // Declare outFile

    bool PressA = false;
    std::string XCoord;
    sf::String text;

    sf::RenderWindow App(sf::VideoMode::GetMode(0), "Laz's Interactive Map :: The Wrath... :: PvP Created");
    App.ShowMouseCursor(true);
    bool windowed = true;
    sf::VideoMode DesktopMode = sf::VideoMode::GetDesktopMode();

    sf::Font TypeKnight;
    if (!TypeKnight.LoadFromFile("Knights Templar.ttf"))
    {
        return EXIT_FAILURE;
    }
    sf::String TopLeft("Text Input: ________________");
    TopLeft.SetFont(TypeKnight);
    TopLeft.Move(10,10);
    TopLeft.SetColor(sf::Color::White);

    sf::String Main("Press F12 to toggle the help menu");
    Main.SetFont(TypeKnight);
    Main.Move(10.f, 600.f);
    Main.SetColor(sf::Color::White);

    bool help = false;
    sf::String Help("Type A to add a coordinate\n\nType R to remove a coordinate\n\nType F to find a coordinate\n\nPress F1 to toggle FullScreen mode\n\nPress ESC to exit the program\n\nPress F12 to toggle the help menu");
    Help.SetFont(TypeKnight);
    Help.Move(10.f,300.f);

    sf::String CopyRight("CopyRight 2010 Tyler Petresky :: All program code is subject to CopyRight Laws");
    CopyRight.SetFont(TypeKnight);
    CopyRight.SetColor(sf::Color::White);
    CopyRight.Move(1300.f, 125.f);
    CopyRight.Scale(0.5f, 0.5f);
    CopyRight.Rotate(-90);

    // Creates the PE map :: 7000x3000
    sf::Shape MapPh;
    MapPh.AddPoint(0,0,sf::Color(0,100,0));
    MapPh.AddPoint(7000,0,sf::Color(0,100,0));
    //MapPh.AddPoint(3500,1500,sf::Color(0,125,0));
    MapPh.AddPoint(7000,3000,sf::Color(0,100,0));
    MapPh.AddPoint(0,3000,sf::Color(0,100,0));
    MapPh.EnableFill(true);
    MapPh.EnableOutline(false);
    MapPh.SetOutlineWidth(10);

    sf::Shape PhMid = sf::Shape::Line(3000, 0, 3000, 3000, 20, sf::Color::Black);
    sf::Shape DrMid = sf::Shape::Line(4000, 0, 4000, 3000, 20, sf::Color::Black);

    sf::Vector2f Center(3500, 1500);
    sf::Vector2f HalfSize(1750, 750);
    sf::View View(Center, HalfSize);
    View.Zoom(0.35f);

    // Main loop
    while (App.IsOpened())
    {
        /*int AdjWid;
        int AdjHei;
        int newWidth;
        int newHeight;
        int origWidth = App.GetWidth();
        int origHeight = App.GetHeight();*/
        // Event loop
        sf::Event Event;
        while (App.GetEvent(Event))
        {
            /*if (Event.Type == sf::Event::Resized) {
                newWidth = App.GetWidth();
                newHeight = App.GetHeight();
                AdjWid = newWidth - origWidth;
                AdjHei = newHeight - origHeight;



            }*/

            // Close window : exit
            if (Event.Type == sf::Event::Closed)
                App.Close();

            // Press escape : exit
            if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::Escape))
                App.Close();

            // Press F1 : Switch video mode
            if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::F1)) {
                if (windowed == true) {
                    App.Create(DesktopMode, "Laz's Interactive Map :: The Wrath... :: PvP Created", sf::Style::Fullscreen);
                    windowed = false;
                }
                else {
                    App.Create(sf::VideoMode::GetMode(0), "Laz's Interactive Map :: The Wrath... :: PvP Created");
                    windowed = true;
                }
            }

            // Press F12 : Toggle help menu
            if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::F12)) {
                if (help == false) {
                    help = true;
                }
                else {
                    help = false;
                }
            }

            enum State { State0, State1, State2, State3 };
            State myState = State0;


            // Press A : Add coords
            if (myState == State0 && (Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::A))
            {
                std::cout << "ONE" << std::endl;
                PressA = true;
                myState = State1;
            }
            if (myState == State1 && (Event.Type == sf::Event::TextEntered))
            {
                std::cout << "TWO" << std::endl;
                // Handle ASCII characters only
                if (Event.Text.Unicode > 47 && Event.Text.Unicode < 58)
                {
                    std::cout << "THREE" << std::endl;
                    XCoord += static_cast<int>(Event.Text.Unicode);
                    text.SetText(XCoord);
                    myState = State2;
                }
                else {
                    text.SetText("");
                }
            }
        }



        float ElapsedTime = App.GetFrameTime();

        // Move the map around the screen
        float Offset = 2000.f * App.GetFrameTime();
        if (App.GetInput().IsKeyDown(sf::Key::Up))    View.Move( 0,      -Offset);
        if (App.GetInput().IsKeyDown(sf::Key::Down))  View.Move( 0,      Offset);
        if (App.GetInput().IsKeyDown(sf::Key::Left))  View.Move(-Offset,  0);
        if (App.GetInput().IsKeyDown(sf::Key::Right)) View.Move(Offset,  0);

        // Zoom and unzoom using + and - keys
        if (App.GetInput().IsKeyDown(sf::Key::Add))      View.Zoom(1.005f);
        if (App.GetInput().IsKeyDown(sf::Key::Subtract)) View.Zoom(0.994f);

        App.SetView(View);

            App.Clear();

            App.Draw(MapPh);
            App.Draw(PhMid);
            App.Draw(DrMid);

        // Reset to the default view to draw the interface
        App.SetView(App.GetDefaultView());

            App.Draw(TopLeft);

            if (help == true)
                App.Draw(Help);
            else
                App.Draw(Main);

            if (PressA == true)
                App.Draw(text);

            App.Draw(CopyRight);

            App.Display();
    }



    return 0;
}

[Hiura]

Each time the loop restart your state returns to s0. You have to create the var outside the loop.

[Wander]

IT WORKS!!!!! YEAH!!!! YOU'RE AWESOME!!!!!!! HAHAHA
Now, I need to make it accept up to four digits in the number and submit the number when the user hits ENTER.

[Hiura]

have fun!  

PS : there are so many way to do it, but you may want to use two state machine  :wink: (=> less brain damage for you)

Code: [Select]

enum STATEMACHINE1 { waiting_for_A, waiting_for_four_digits_first_time, *_second_time, ...};
enum STATEMACHINE2 { waiting_for_digits_1, *_2, ... };

--

if (myState == s1 && Event.Type == sf::Event::TextEntered) {
 do stuff with my_state_2



or use a counter, here it's much more light.

Code: [Select]


if (myState == s1 && Event.Type == sf::Event::TextEntered) {
if my_count < 4 then get the number and ++my_count.


[Wander]

Sweet! A For Loop sounds very nice right now. Thanks again!