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-rw-r--r--src/mouse/sdl-1.2/src/mouse.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mouse/sdl-1.2/src/mouse.c b/src/mouse/sdl-1.2/src/mouse.c
index a0a6d90..cee4549 100644
--- a/src/mouse/sdl-1.2/src/mouse.c
+++ b/src/mouse/sdl-1.2/src/mouse.c
@@ -39,6 +39,7 @@ static void mouse_event(const SDL_MouseMotionEvent *const ev,
void mouse_update(struct mouse *const m)
{
+ const short x = m->x, y = m->y;
SDL_Event ev;
int n;
@@ -71,6 +72,9 @@ void mouse_update(struct mouse *const m)
}
}
+ m->dx = m->x - x;
+ m->dy = m->y - y;
+
end:
if (n < 0)