Changed the way the fades work, and brought back in the Player

scripts/Player.gd

@@ -0,0 +1,89 @@
+extends CharacterBody2D
+
+const SPEED = 300
+const JUMP_VELOCITY = -400.0
+const ANGULAR_ACCELERATION = 7.5;
+
+var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
+var gravity_vector: Vector2
+var direction: int = 1
+var World: Node2D
+var ap: AnimationPlayer
+var asp: AudioStreamPlayer
+var cam: Camera2D
+
+var jumping: bool = false
+var lives: int = 3
+
+var jump_sound = preload("res://audio/jump.wav")
+var land_sound = preload("res://audio/land.wav")
+var fall_sound = preload("res://audio/fall.wav")
+var switch_direction_sound = preload("res://audio/switch_direction.wav")
+
+
+func switch_direction():
+	velocity.x *= -1
+	set_direction( direction * -1 )
+	asp.stream = switch_direction_sound
+	asp.play()
+
+func _ready():
+	ap = $AnimationPlayer;
+	asp = $AudioStreamPlayer;
+	
+	
+## Setters
+func set_direction( d: int ):
+	direction = d
+	
+func set_gravity_vector( gv: Vector2 ):
+	gravity_vector = gv
+
+func _physics_process(delta):
+	
+	if Input.is_action_just_pressed("debug"):
+		switch_direction()
+	#if direction != World.direction:
+			#swap_direction()
+		
+	# Add the gravity.
+	self.up_direction = -gravity_vector;
+	$CollisionShape2D.skew = lerp( $CollisionShape2D.skew, (.001) * self.velocity.x * sin(gravity_vector.angle()) , delta * ANGULAR_ACCELERATION )
+	self.rotation = lerp( self.rotation , -gravity_vector.angle() + (.5*PI) , delta * ANGULAR_ACCELERATION ) ;
+	
+	
+	if not is_on_floor(): 
+		velocity.y += gravity * (sin(gravity_vector.angle())) * delta
+		velocity.x += gravity * (cos(gravity_vector.angle())) * delta
+	else:
+		# Handle jump.
+			
+		if jumping:
+			jumping = false
+			ap.play("land")
+			asp.stream = land_sound
+			asp.play()
+			
+			
+		if Input.is_action_just_pressed("jump") and is_on_floor():
+			#velocity.x = JUMP_VELOCITY * cos(jump_vector.angle())
+			jumping = true
+			ap.play("jump")
+			asp.stream = jump_sound
+			asp.play()
+			
+			velocity.y = JUMP_VELOCITY * sin(gravity_vector.angle()) 
+					
+		if direction != 0:
+			velocity.x = direction * SPEED
+		else:
+			velocity.x = move_toward(velocity.x, 0, SPEED)
+					
+	move_and_slide()
+
+func _on_activate_camera():
+	cam.make_current()
+	
+func _on_fall():
+	asp.stream = fall_sound
+	asp.play()