Messages

1

General / Re: How Can I limit what to draw

« on: October 26, 2013, 10:04:21 pm »

I think lag is all about drawing the map for now. I will change my code with vertex arrays as soon as possible and will tell you the result. Thanks for your helps.

2

General / Re: How Can I limit what to draw

« on: October 25, 2013, 03:41:16 pm »

thanks for your advice Ghosa but that problem still isn't solved 

3

General / How Can I limit what to draw

« on: October 23, 2013, 06:11:20 pm »

I am working on a RTS game and game gets laggy with big maps so I need to limit which parts of map to draw.
I want to draw only visible part of map so I coded like that:

 
void Node::draw( sf::RenderWindow& window )
{
    sf::Vector2f  node_position_in_coords;
    sf::View      view = window.getView();
    sf::Rect<float> rt;

    rt.left = view.getCenter().x - view.getSize().x/2.f;
    rt.top  = view.getCenter().y - view.getSize().y/2.f;
    rt.width  = view.getSize().x;
    rt.height = view.getSize().y;

    node_position_in_coords = window.mapPixelToCoords( sf::Vector2i( _x, _y) );

    if( rt.contains( node_position_in_coords ) )
        window.draw( _s_tile );
}
 

But it only draws a specific part of map.