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Help => General => Topic started by: LucasShadow on December 30, 2011, 04:59:16 am

Title: Storing and recalling variables within an event
Post by: LucasShadow on December 30, 2011, 04:59:16 am

So I am trying to make an application that requires multiple values to be considered.  When EventA happens, I want Variable1 to be a certain X number.  Then, if statements can check to see if X is the number for that certain if statement, and carry on with a specific order.  I am not aware of how to do this exactly, so I tried to do it with strings:

Code: [Select]


#include <SFML/Graphics.hpp>

 int main()
 {
     // Create the main window
     sf::RenderWindow App(sf::VideoMode(800, 600), "Test");

     sf::String Value1("1");

     sf::String Text1("Value1 is active");
     Text1.SetPosition(100.f, 100.f);

     // Start the game loop
     while (App.IsOpened())
     {
         // Process events
         sf::Event Event;
         while (App.GetEvent(Event))
         {
             // Close window : exit
             if (Event.Type == sf::Event::Closed)
                 App.Close();

             if (App.GetInput().IsKeyDown(sf::Key::Up))   Value1.SetText("2")

             if (Value1.GetText() == "1")   Text1.SetText("Value1 is active");
             if (Value1.GetText() == "2")   Text1.SetText("Value1 is inactive");
         }

         // Clear screen
         App.Clear();

         // Draw the string
         App.Draw(Text1);

         // Update the window
         App.Display();
     }

     return EXIT_SUCCESS;
 }

It doesnt work though.  Any suggestions? Sorry if I havent been clear, I am not sure how to express what I want to do  :cry:

Title: Re: Storing and recalling variables within an event
Post by: Tex Killer on December 30, 2011, 09:57:43 pm

LucasShadow, I'm not sure about C++, but in most languages you cannot compare strings with ==. Why don't you use primitive variables?

Code: [Select]

int Value1 = 1;

Title: Storing and recalling variables within an event
Post by: LucasShadow on December 30, 2011, 10:32:05 pm

Lol, primitive variables completely skipped my mind. Thanks man :)

Title: Re: Storing and recalling variables within an event
Post by: Nexus on December 31, 2011, 01:34:22 am

Quote from: "Tex Killer"

LucasShadow, I'm not sure about C++, but in most languages you cannot compare strings with ==.

In C++, you can compare std::string with ==, but not char arrays. To be exact, "a" == "a" compiles, but compares the addresses instead of the characters.

But if you don't need strings, that's irrelevant ;)