diff options
Diffstat (limited to 'sdl2/events.scm')
| -rw-r--r-- | sdl2/events.scm | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sdl2/events.scm b/sdl2/events.scm index 883f32b..cc78710 100644 --- a/sdl2/events.scm +++ b/sdl2/events.scm @@ -81,6 +81,15 @@ joystick-axis-event-axis joystick-axis-event-value + make-joystick-button-event + joystick-button-event? + joystick-button-down-event? + joystick-button-up-event? + joystick-button-event-timestamp + joystick-button-event-which + joystick-button-event-button + joystick-button-event-pressed? + poll-event)) (define (make-sdl-event) @@ -825,6 +834,39 @@ ((_ timestamp which axis _ _ _ value _) (make-joystick-axis-event timestamp which axis value)))) +(define-record-type <joystick-button-event> + (make-joystick-button-event timestamp which button pressed?) + joystick-button-event? + (timestamp joystick-button-event-timestamp) + (which joystick-button-which) + (button joystick-button-event-button) + (pressed? joystick-button-event-pressed?)) + +(define (joystick-button-down-event? e) + "Return #t if E is a joystick button press event." + (and (joystick-button-event? e) + (joystick-button-event-pressed? e))) + +(define (joystick-button-up-event? e) + "Return #t if E is a joystick button release event." + (and (joystick-button-event? e) + (not (joystick-button-event-pressed? e)))) + +(define (parse-joystick-button-event ptr) + (define types + (list uint32 ; type + uint32 ; timestamp + int32 ; which + uint8 ; button + uint8 ; state + uint8 ; padding1 + uint8)) ; padding2 + + (match (parse-c-struct ptr types) + ((_ timestamp which button state _ _) + (make-joystick-button-event timestamp which button + (= state ffi:SDL_PRESSED))))) + ;;; ;;; Event management @@ -849,4 +891,7 @@ (parse-mouse-motion-event ptr)) ((= type ffi:SDL_JOYAXISMOTION) (parse-joystick-axis-event ptr)) + ((or (= type ffi:SDL_JOYBUTTONDOWN) + (= type ffi:SDL_JOYBUTTONUP)) + (parse-joystick-button-event ptr)) (else 'fixme:unsupported-event)))))) |