Topics

1

Graphics / Drawing to 2 views simultaniously

« on: September 30, 2014, 02:18:37 pm »

Hey,
I've got a question regarding the view-tutorial.
As far as I understood it, when I want to have a minimap, I need a normal view for my character, which will be moved when the character moves (do I really have to call Window::setView() every time I want to move it?)
And then I need one for my minimap, which simply covers the complete space of my level, instead of the monitor resolution.
To display them I call setView with the playerView, draw my 100+ level-objects, and then i call setView with the minimap-view and draw them all again?
Is that how it is?
Isn't there a way to just call draw once for every level-object? Otherwise that would mean, that the runtime depends linear on the number of views?

And another question:
can I just call draw for every object, in my level, or should I first check which one will be in the window anyway, and only call draw for those ones?

greetings Uzaku

2

Graphics / Drawing Shapes on Images

« on: October 25, 2011, 01:57:22 pm »

Hey,
I want to create an Image, with lines, Basically a very simple Chessboard.
So i created 2 sf::Shape:Line objects one vertical and one horizontal.
But then i noticed I cant copy them to the image.
And now my question is, is there any way to copy it, that i didn't see, or will i have to generate them myself by changing the certain pixel?

greetings Uzaku

3

Graphics / Flip an Image

« on: April 24, 2011, 03:31:11 pm »

Hi, for my Project I need a Background Picture, which is created at run time, due to different Screen-resolutions.
So I have my Image and want to Put a Border arround it.

Code: [Select]

BrushW = Border->GetWidth();
Cx = (Solution.x / BrushW) + 1;
for(int i = 0; i < Cx;++i)
{
BackGround->Copy(*Border, i*BrushW, 0);
BackGround->Copy(*Border, i*BrushW, Solution.y - BrushW);
}


So I have a Border and the Bottom and the Top, but I want one left and right too.
So I would like to Flip my Border Image and Copy it onto the background.
But except for creating a new Image with the swapped values of my Border Image and pixel copying to flip it, i couldnt find a way.
So I was wondering, whether there is a more elegant way.

greetings me

PS: I think flip was the wrong word, I ment a turn by 90 degree

4

Graphics / Problem with RenderWindow::Clear() (Maybe a bug)

« on: April 22, 2011, 08:44:30 pm »

Hi,
after hours of searching within my code I decided to make a minimal sample to find the Error. And I think I found a Bug.

When I run this code, and press the A-Key, my Window starts flickering between black and the choosen color.

And here is a DownloadLink to a zip archiv with all files: https://rapidshare.com/files/458689578/SFMLBug.zip

Code: [Select]

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <SFML/Graphics.hpp>
#include <list>


int WINAPI WinMain(HINSTANCE d1, HINSTANCE d2, LPSTR d3, int d4)
{
sf::RenderWindow *W = new sf::RenderWindow(sf::VideoMode(1024, 768, 32), "Test Window");
sf::Image I1, I2, I3, I4;

I1.LoadFromFile("Images\\CreateNetGame.png");
I2.LoadFromFile("Images\\Exit.png");
I3.LoadFromFile("Images\\JoinNetgame.png");
I4.LoadFromFile("Images\\Start.png");

sf::Sprite S1(I1, sf::Vector2f(0, 0)), S2(I2, sf::Vector2f(0, 200)), S3(I3, sf::Vector2f(0, 400)), S4(I4, sf::Vector2f(0, 600));

while (W->IsOpened())
{
// Process events
sf::Event Event;
while (W->GetEvent(Event))
{
// Close window : exit
if (Event.Type == sf::Event::Closed)
W->Close();

if(Event.Type == sf::Event::KeyPressed && Event.Key.Code == sf::Key::A)
W->Clear(sf::Color(255, 0, 255));
}

W->Draw(S1);
W->Draw(S2);
W->Draw(S3);
W->Draw(S4);

W->Display();
}

return 0;
}

greetings Uzaku