hedgewars/uCursor.pas
author sheepluva
Mon, 05 Aug 2019 00:20:45 +0200
changeset 15316 f382ec6dba11
parent 14830 c2793ff4e887
child 15908 014f4edd0421
permissions -rw-r--r--
In hindsight my emscripten-ifdef (70d416a8f63f) is nonsense. As fpcrtl_glShaderSource() would not be defined and lead to compiling issues. So either it's 3 ifdefs (in pas2cRedo, pas2cSystem and misc.c), in order to toggle between fpcrtl_ and the native function, or alternatively have no ifdef for it at all. I'm going with none at all, which means emscripten will compile with the original (const) function prototype, being wrapped by the fpcrtl_ function, same as non-emscripten builds.

{$INCLUDE "options.inc"}

unit uCursor;

interface

procedure init;
procedure resetPosition;
procedure resetPositionDelta();
procedure updatePositionDelta(xrel, yrel: LongInt);
procedure updatePosition();
procedure handlePositionUpdate(x, y: LongInt);

implementation

uses SDLh, uVariables, uTypes;

procedure init;
begin
    SDL_ShowCursor(SDL_DISABLE);
    resetPosition();
{$IFNDEF USE_TOUCH_INTERFACE}
    SDL_SetRelativeMouseMode(SDL_TRUE);
{$ENDIF}
end;

procedure resetPosition;
begin
    if GameType = gmtRecord then
        exit;
    SDL_WarpMouse(cScreenWidth div 2, cScreenHeight div 2);
    resetPositionDelta();
end;

procedure resetPositionDelta();
begin
    CursorPointDelta.X:= 0;
    CursorPointDelta.Y:= 0;
end;

procedure updatePositionDelta(xrel, yrel: LongInt);
begin
    CursorPointDelta.X:= CursorPointDelta.X + xrel;
    CursorPointDelta.Y:= CursorPointDelta.Y + yrel;
end;

procedure updatePosition();
begin
    handlePositionUpdate(CursorPointDelta.X, CursorPointDelta.Y);
    resetPositionDelta();
end;

procedure handlePositionUpdate(x, y: LongInt);
begin
    CursorPoint.X:= CursorPoint.X + x;
    CursorPoint.Y:= CursorPoint.Y - y;
end;

end.