Mouse coordinates are floating point

You can get sub-pixel mouse coordinates and motion depending on the platform and display scaling.

Fixes https://github.com/libsdl-org/SDL/issues/2999
This commit is contained in:
Sam Lantinga
2022-12-29 19:31:12 -08:00
parent 8c3239dee5
commit cefbeb582f
52 changed files with 564 additions and 654 deletions

View File

@@ -254,12 +254,12 @@ class SDL_BApp : public BApplication
SDL_GetWindowPosition(win, &winPosX, &winPosY);
int dx = x - (winWidth / 2);
int dy = y - (winHeight / 2);
SDL_SendMouseMotion(0, win, 0, SDL_GetMouse()->relative_mode, dx, dy);
SDL_SendMouseMotion(0, win, 0, SDL_GetMouse()->relative_mode, (float)dx, (float)dy);
set_mouse_position((winPosX + winWidth / 2), (winPosY + winHeight / 2));
if (!be_app->IsCursorHidden())
be_app->HideCursor();
} else {
SDL_SendMouseMotion(0, win, 0, 0, x, y);
SDL_SendMouseMotion(0, win, 0, 0, (float)x, (float)y);
if (SDL_CursorVisible() && be_app->IsCursorHidden())
be_app->ShowCursor();
}