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Help => Graphics => Topic started by: Nightspark on May 22, 2011, 01:08:57 am

Title: Delays in sprite movement
Post by: Nightspark on May 22, 2011, 01:08:57 am

I got my program so I can move a sprite in all eight directions, or in a circle if I want, using the arrow keys. The problem occurs whenever I press a key, either to start moving or change direction. The character moves once, waits a half second or so, then moves steadily like I wanted. Any ideas what could be causing this delay/lag between movements? My input method is pretty standard.

//Located in event loop, same program structure in every SFML tut out there.

if (App.GetInput().IsKeyDown(sf::Key::Left))
       Player.SetSubRect(0, 0, 128, 128); //facing left
       Player.Move(-1, 0);

if (App.GetInput().IsKeyDown(sf::Key::Right))
       Player.SetSubRect( 128, 128, 256, 256); //facing right
       Player.Move(1, 0);

if (App.GetInput().IsKeyDown(sf::Key::Up))
       Player.Move(0, -1);

if (App.GetInput().IsKeyDown(sf::Key::Down))
       Player.Move(0, 1);

Title: Delays in sprite movement
Post by: WitchD0ctor on May 22, 2011, 01:39:45 am

The problem is you have those if statements inside the events loop, have them outside of it and that should fix it

Title: Thanks, but why is that?
Post by: Nightspark on May 22, 2011, 11:53:25 pm

Thank you, that fixed everything perfectly. Just curious though, why would putting those calls in the GetEvent() loop cause a delay?