wipers now play sounds while wiping

added a clamp wrapper around the randf call in rain spawner

scripts/rain_spawner.gd

@@ -44,7 +44,7 @@ func _spawn_rain():
     # fixes the weird scale issues on the individual drop
     r.set_scale(Vector2(r.scale.x / scale.x,
                         r.scale.y / scale.y))
-    r.scale_down(randf())
+    r.scale_down(clamp(randf(), 0.3, 1.0))
     
     # add the drop and increment out drop counter
     add_child(r)

scripts/wiper.gd

@@ -3,17 +3,28 @@ extends Node2D
 #-------------------------------
 # exports
 
+export var auto_play  = false
 export var dead_zones = 200
 
+#-------------------------------
+# node refs
+
+onready var _sfx_player = $wiper_sound
+
 #-------------------------------
 # vars
 
 var _wiping    = false
 var _returning = false
+var _played_sound = false
 var _limits    = [ 90, -23 ]
 var _win_size  = OS.get_window_size()
-var _last_mouse_pos
+var _last_mouse_pos = 0.0
 var _return_timer
+var _sounds = {
+    "up": preload("res://audio/wiper_up.wav"),
+    "down": preload("res://audio/wiper_down.wav")
+}
 
 #-------------------------------
 # overloaded functions
@@ -50,6 +61,18 @@ func _process(delta):
         
         if _last_mouse_pos != 0:
             _return_timer.start()
+    
+    if _last_mouse_pos >= 0.5 and \
+       _wiping and \
+       not _played_sound:
+        _play_wiper_sfx("up")
+        _played_sound = true
+    elif _last_mouse_pos <= 0.5 and \
+         (_returning or _wiping) and \
+         _played_sound:
+        _play_wiper_sfx("down")
+        _played_sound = false
+    
 
 # the actual blade moving code is in here
 func _physics_process(delta):
@@ -82,4 +105,10 @@ func _get_window_coverage():
 
 # call back for the _return_timer
 func _return_timer_timeout():
-    _returning = true
+    _returning = true
+
+
+
+func _play_wiper_sfx(dir):
+    _sfx_player.set_stream(_sounds[dir])
+    _sfx_player.play()