Messages

16

General / Adding 2 Events in an SFML Application?

« on: September 26, 2011, 11:42:58 am »

Okay, i learned how to initialize an Event through this code

Code: [Select]

while (Running)
{
    sf::Event Event;
    while (App.GetEvent(Event))
    {
        // Process event
    }

    App.Display();
}

I then became zealous and created 2 events

Code: [Select]

while (Running)
{
    sf::Event Event;
    sf::Event Second;
    while (App.GetEvent(Event))
    {
        // Process event
    }

    while(App.GetEvent(Second))
    {
        //Process other events
     }

    App.Display();
}

Then when I run my SFML program, it releases this...

"Run-Time Check Failure #3 - The variable 'Second' is being used without being initialized."

I don't get it. How do I initialize my Event named Second?

Cheers.

17

Graphics / How to simulate Mario Jump? (moving the sprite in mid-air)

« on: September 26, 2011, 11:18:47 am »

Greetings

Okay, i made this chunk of code that makes the sprite "jump". I havn't really learned anything about manipulating the FPS of a program, so it might explain how i formulated my jump sequence.


I managed to make the sprite "jump" when I press the "Up" button; however, I'm not sure how to make the sprite move horizontally while in mid-air like how mario manages to move horizontally before touching the ground.

Here is part of my code.

Code: [Select]

while(Window.IsOpened())
{

while(Window.GetEvent(Event))
{

if((Event.Type == Event.KeyPressed) && (Event.Key.Code == Key::Up))
{
for(int c = 0; c < 240; c++)
{
Sprite.Move(0, -1.0);
Window.Clear();
Window.Draw(Sprite);
Window.Display();
}

for(int c = 240; c > 0; c--)
{
Sprite.Move(0, 1.0);
Window.Clear();
Window.Draw(Sprite);
Window.Display();
}

}



}
while(Window.GetEvent(Event))
{
if(Event.Type == Event.Closed)
{
Window.Close();
}
else if((Event.Type == Event.KeyPressed) && (Event.Key.Code == Key::Left))
{

Sprite.Move(-10.0, 0);
Window.Clear();
Window.Draw(Sprite);
Window.Display();

}
else if((Event.Type == Event.KeyPressed) && (Event.Key.Code == Key::Right))
{

Sprite.Move(10.0,0);
Window.Clear();
Window.Draw(Sprite);
Window.Display();

}



}



}




Cheers.

18

Graphics / How to move a sprite without leaving multiple copies?

« on: September 12, 2011, 02:47:13 pm »

Well,  i was trying to make my sprite move to the left, however, Not only does it move to the left, it leaves a copy of the sprite at its former place.

How do i just let it move to the left WITHOUT leaving a copy of the sprite at its former place?

Here is my code:

Code: [Select]

#define SFML_STATIC

#include<iostream>
#include<SFML\System.hpp>
#include<SFML\Graphics.hpp>
using namespace std;
using namespace sf;

int main()
{

Image Image;


if (!Image.LoadFromFile("ToadR.png"))
return 1;

VideoMode Vmode(800,600,32);
RenderWindow Window(Vmode, "I am Awesome.");

Sprite Sprite;
Sprite.SetImage(Image);
float x = 400.0;
float y = 300.0;
Sprite.SetPosition(x, y);
Event Event;



while(Window.IsOpened())
{
Window.Draw(Sprite);
Window.Display();


while(Window.GetEvent(Event))
{
if(Event.Type == Event.Closed)
{
Window.Close();
}
else if((Event.Type == Event.KeyPressed) && (Event.Key.Code == Key::Left))
{

Sprite.Move(-10.0, 0);




}

}




}
return 0;
}



I'm stumped. I hope I could get help. Thanks!

19

Graphics / error LNK2019

« on: September 04, 2011, 01:54:01 pm »

You forgot sfml-window

That did the trick. Awesome.


Now that the console shows up, it says that it "failed to load MarioStanding.png" because "png not supported".

How do i fix this

cheers

20

Graphics / error LNK2019

« on: September 04, 2011, 12:56:56 pm »

Hello, I was trying to type a code just to add a sprite. however, before i can even put in the sprite in image i get this darn error message

Code: [Select]



1>------ Build started: Project: loadsprite, Configuration: Debug Win32 ------
1>  main.cpp
1>sfml-graphics-s-d.lib(Image.obj) : error LNK2019: unresolved external symbol "public: bool __thiscall sf::Window::SetActive(bool)const " (?SetActive@Window@sf@@QBE_N_N@Z) referenced in function "public: bool __thiscall sf::Image::CopyScreen(class sf::RenderWindow &,class sf::Rect<int> const &)" (?CopyScreen@Image@sf@@QAE_NAAVRenderWindow@2@ABV?$Rect@H@2@@Z)
1>sfml-graphics-s-d.lib(GraphicsContext.obj) : error LNK2019: unresolved external symbol "public: void __thiscall sf::Context::SetActive(bool)" (?SetActive@Context@sf@@QAEX_N@Z) referenced in function "public: __thiscall sf::priv::GraphicsContext::GraphicsContext(void)" (??0GraphicsContext@priv@sf@@QAE@XZ)
1>sfml-graphics-s-d.lib(GraphicsContext.obj) : error LNK2019: unresolved external symbol "public: static class sf::Context & __cdecl sf::Context::GetGlobal(void)" (?GetGlobal@Context@sf@@SAAAV12@XZ) referenced in function "public: __thiscall sf::priv::GraphicsContext::GraphicsContext(void)" (??0GraphicsContext@priv@sf@@QAE@XZ)
1>sfml-graphics-s-d.lib(GraphicsContext.obj) : error LNK2019: unresolved external symbol "public: static bool __cdecl sf::Context::IsContextActive(void)" (?IsContextActive@Context@sf@@SA_NXZ) referenced in function "public: __thiscall sf::priv::GraphicsContext::GraphicsContext(void)" (??0GraphicsContext@priv@sf@@QAE@XZ)
1>******\Debug\loadsprite.exe : fatal error LNK1120: 4 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========



here is my code so far...

Code: [Select]

#include<iostream>
#include<SFML\System.hpp>
#include<SFML\Graphics.hpp>
using namespace std;
using namespace sf;

int main()
{

sf::Image Image;
if (!Image.LoadFromFile("MarioStanding.png"))
return 1;
return 0;


I linked towards
sfml-graphics-s-d.lib
sfml-main.lib
sfml-system-s-d.lib


what's wrong with my code? How can I fix it?

Cheers