Cleaned up controller deadzone logic, fixed bug related to uninitiated motion.

examples/splashmenu/scenes/controller.go

@@ -156,6 +156,8 @@ type SplashPad struct {
 	heroImpulse impulse
 	jumping     bool
 	jumptimer   int
+
+	controller bool
 }
 
 func NewSplashPad() SplashPad {
@@ -184,6 +186,7 @@ func NewSplashPad() SplashPad {
 		hero:       h,
 		jumping:    false,
 		jumptimer:  0,
+		controller: false,
 	}
 
 	gravity := &force{}
@@ -240,6 +243,13 @@ func (s *SplashPad) Update() error {
 		s.hero.jumptime = 0
 		s.hero.jumping = false
 	}
+
+	//check for user input to transition scene
+	if inpututil.IsKeyJustPressed(ebiten.KeyQ) {
+		if s.events[groovy.COMPLETED] != nil {
+			s.events[groovy.COMPLETED]()
+		}
+	}
 	return nil
 }
 
@@ -468,16 +478,20 @@ func (s *SplashPad) handleLeftMovement() {
 		s.hero.runningLeft = true
 		log.Println(" left gamepad engaged")
 		s.hero.facingLeft = true
+		s.controller = true
 	}
 
+	if s.controller {
 		if -SENSITIVITY < ebiten.GamepadAxisValue(0, 0) && ebiten.GamepadAxisValue(0, 0) < SENSITIVITY {
 			s.hero.runningLeft = false
 			if s.hero.runningStopFrame > 0 {
 				s.hero.runningStopFrame = s.increment
 				log.Println(" left gamepad released")
+				s.controller = false
 			}
 
 		}
+	}
 
 	//if running, need to update their position
 	var offset = 0
@@ -501,7 +515,7 @@ func (s *SplashPad) handleLeftMovement() {
 			deltaT := float32(s.increment - s.hero.runningStopFrame)
 
 			offset = TOP_SPEED - int(scaler*deltaT)
-			offset = max(0, offset) //should not be less than zero, otherwise player would move wrong way ??
+			offset = int(math.Max(0, float64(offset))) //should not be less than zero, otherwise player would move wrong way ??
 			log.Printf(" stopping (%d,%d)...", s.hero.posX, s.hero.posY)
 		} else {
 			s.hero.runningStopFrame = 0
@@ -538,16 +552,19 @@ func (s *SplashPad) handleRightMovement() {
 		s.hero.runningRight = true
 		log.Println(" right gamepad engaged")
 		s.hero.facingLeft = false
+		s.controller = true
 	}
-
+	if s.controller {
 		if -SENSITIVITY < ebiten.GamepadAxisValue(0, 0) && ebiten.GamepadAxisValue(0, 0) < SENSITIVITY {
 			s.hero.runningRight = false
 			if s.hero.runningStopFrame > 0 {
 				s.hero.runningStopFrame = s.increment
 				log.Println(" right gamepad released")
+				s.controller = false
 			}
 
 		}
+	}
 
 	//if running, need to update their position
 	var offset = 0