diff options
| -rw-r--r-- | sly/input/mouse.scm | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sly/input/mouse.scm b/sly/input/mouse.scm index 22c6d8c..8081f64 100644 --- a/sly/input/mouse.scm +++ b/sly/input/mouse.scm @@ -23,6 +23,7 @@ (define-module (sly input mouse) #:use-module ((sdl sdl) #:prefix SDL:) + #:use-module (sly window) #:use-module (sly event) #:use-module (sly signal) #:use-module (sly math vector) @@ -48,7 +49,10 @@ (define-signal mouse-position (hook->signal mouse-move-hook (vector2 0 0) - vector2)) + ;; Sly uses the bottom-left as the origin, so invert + ;; the y-axis for convenience. + (lambda (x y) + (vector2 x (- (signal-ref window-height) y))))) (define-signal mouse-x (signal-map vx mouse-position)) (define-signal mouse-y (signal-map vy mouse-position)) |