hedgewars/uCursor.pas
author nemo
Sat, 17 Mar 2012 14:02:11 -0400
changeset 6788 88036f0e0a92
parent 6580 6155187bf599
child 8026 4a4f21070479
child 8222 d3dc08500fc0
permissions -rw-r--r--
I think this is a little more efficient than dxdy, and easier to read. We call DxDy2 a lot, can any of those use Angle/DirAngle?

unit uCursor;

interface

procedure init;
procedure updatePosition;

implementation

uses SDLh, uVariables;

procedure init;
begin
    SDL_WarpMouse(cScreenWidth div 2, cScreenHeight div 2);
end;

procedure updatePosition;
var x, y: LongInt;
begin
    SDL_GetMouseState(@x, @y);

    if(x <> cScreenWidth div 2) or (y <> cScreenHeight div 2) then
        begin
        CursorPoint.X:= CursorPoint.X + x - cScreenWidth div 2;
        CursorPoint.Y:= CursorPoint.Y - y + cScreenHeight div 2;

        if cHasFocus then
            SDL_WarpMouse(cScreenWidth div 2, cScreenHeight div 2);
        end
end;

end.