Fix naive joypad detection

Author: kivutar

assets

@@ -80,6 +80,16 @@ func floatToAnalog(v float32) int16 {
 	return int16(v * 32767.0)
 }
 
+// JoypadPlugged returns true if at least one joypad is plugged
+func JoypadPlugged() bool {
+	for joy := glfw.Joystick(0); joy < glfw.JoystickLast; joy++ {
+		if joy.IsGamepad() {
+			return true
+		}
+	}
+	return false
+}
+
 // pollJoypads process joypads of all players
 func pollJoypads(state States, analogState AnalogStates) (States, AnalogStates) {
 	p := 0

input/input.go

@@ -1,7 +1,7 @@
 package menu
 
 import (
-	"github.com/go-gl/glfw/v3.3/glfw"
+	"github.com/libretro/ludo/input"
 )
 
 // Used to easily compose different hint bars based on the context.
@@ -25,7 +25,7 @@ func stackHintRight(stack *float32, icon uint32, label string, h int) {
 }
 
 func hintIcons() (arrows, upDown, leftRight, a, b, x, y, start, slct, guide uint32) {
-	if glfw.Joystick(0).IsGamepad() {
+	if input.JoypadPlugged() {
 		return menu.icons["pad-arrows"],
 			menu.icons["pad-up-down"],
 			menu.icons["pad-left-right"],