fix most of the script errors and warnings, fixed a couple tiny bugs in the process :)

autoloads/controls.gd

@@ -22,15 +22,15 @@ func _init() -> void:
 
 
 func get_key(action: String) -> int:
-	var scancode = cfg.get_value(action, "keyboard")
-	if scancode == null:
+	var scancode = cfg.get_value(action, "keyboard", -1)
+	if scancode == -1:
 		scancode = _get_default_key(action)
 	return scancode
 
 
 func get_button(action: String) -> int:
-	var button_index = cfg.get_value(action, "gamepad")
-	if button_index == null:
+	var button_index = cfg.get_value(action, "gamepad", -1)
+	if button_index == -1:
 		button_index = _get_default_button(action)
 	return button_index
 
@@ -58,8 +58,8 @@ func _apply_saved_bindings() -> void:
 
 
 func _configure_action_key(action: String) -> void:
-	var scancode = cfg.get_value(action, "keyboard")
-	if scancode == null:
+	var scancode = cfg.get_value(action, "keyboard", -1)
+	if scancode == -1:
 		scancode = _get_default_key(action)
 	_apply_action_key(action, scancode)
 	var linked_action = LINKED_ACTIONS.get(action)
@@ -68,8 +68,8 @@ func _configure_action_key(action: String) -> void:
 
 
 func _configure_action_button(action: String) -> void:
-	var button_index = cfg.get_value(action, "gamepad")
-	if button_index == null:
+	var button_index = cfg.get_value(action, "gamepad", -1)
+	if button_index == -1:
 		button_index = _get_default_button(action)
 	_apply_action_button(action, button_index)
 	var linked_action = LINKED_ACTIONS.get(action)

autoloads/game.gd

@@ -95,7 +95,7 @@ func _set_difficulty(value: int) -> void:
 func instance_node(node:PackedScene,x:float,y:float,parent):
 		var Instance = node.instance()
 		Instance.global_position = Vector2(x,y)
-		parent.add_child(Instance)
+		parent.call_deferred("add_child", Instance)
 
 #Get position in sectors
 func get_sector(pos):
@@ -122,12 +122,12 @@ func tally_scores() -> void:
 		shards_collected[5] = true
 		# 100% time bonus
 		if time < map.target_time_100:
-			time_bonus = max(2500 - int(2500.0 * time / map.target_time_100), 0)
+			time_bonus = max(2500 - int(2500.0 * time / map.target_time_100), 0) as int
 			shards_collected[6] = true
 	else:
 		# any% time bonus
 		if time < map.target_time_any:
-			time_bonus = max(2500 - int(2500.0 * time / map.target_time_any), 0)
+			time_bonus = max(2500 - int(2500.0 * time / map.target_time_any), 0) as int
 			shards_collected[6] = true
 	# life bonus
 	if deaths == 0:
@@ -195,10 +195,10 @@ func save():
 	
 	# save score and time depending on completion
 	if _get_shards() >= 5 && keys >= 50:
-		save_data.score_100 = max(save_data.score_100, final_score)
+		save_data.score_100 = max(save_data.score_100, final_score) as int
 		save_data.time_100 = min(save_data.time_100, time)
 	else:
-		save_data.score_any = max(save_data.score_any, final_score)
+		save_data.score_any = max(save_data.score_any, final_score) as int
 		save_data.time_any = min(save_data.time_any, time)
 	
 	# set shards
@@ -207,7 +207,7 @@ func save():
 			save_data.shards_collected[i] = true
 	
 	# set keys
-	save_data.keys_collected = max(save_data.keys_collected, keys)
+	save_data.keys_collected = max(save_data.keys_collected, keys) as int
 	
 	# mark as completed
 	save_data.completed = true
@@ -272,9 +272,9 @@ func restart_level():
 		Audio.ac_music.stream_paused = false
 
 #Freeze frame
-func freeze_frame(time):
+func freeze_frame(freeze_time):
 	get_tree().paused = true
-	var timer = get_tree().create_timer(time, true)
+	var timer = get_tree().create_timer(freeze_time, true)
 	timer.connect("timeout", get_tree(), "set_pause", [false])
 	return timer
 
@@ -321,6 +321,6 @@ func _on_player_died() -> void:
 		Audio.play_sound(Audio.a_die, Audio.ac_die)
 		# death score penalty
 		if use_lives == false && lives < 0:
-				score = max(0, score - 500)
+				score = max(0, score - 500) as int
 		# freezeframe
 		Game.freeze_frame(0.3)

autoloads/ngio.gd

@@ -174,6 +174,8 @@ func request_execute(component: String, parameters: Dictionary = {}, echo: Strin
 	var body = "input=" + to_json(request).percent_encode()
 	# make request
 	var err = http.request(GATEWAY_URI, headers, true, HTTPClient.METHOD_POST, body)
+	if err != OK:
+		push_error("Invalid HTTP request")
 	# yield response
 	yield(http, "request_completed")
 	return _response

autoloads/stain_layer.gd

@@ -4,6 +4,10 @@ extends Light2D
 onready var viewport: Viewport = $Viewport
 
 
+func _ready() -> void:
+	texture = viewport.get_texture()
+
+
 func _process(delta: float) -> void:
 	var main_viewport = get_viewport()
 	if viewport.canvas_transform != main_viewport.canvas_transform:

autoloads/stain_layer.tscn

@@ -1,12 +1,8 @@
-[gd_scene load_steps=3 format=2]
+[gd_scene load_steps=2 format=2]
 
 [ext_resource path="res://autoloads/stain_layer.gd" type="Script" id=1]
 
-[sub_resource type="ViewportTexture" id=1]
-viewport_path = NodePath("Viewport")
-
 [node name="StainLight" type="Light2D" groups=["viewport_autoload"]]
-texture = SubResource( 1 )
 offset = Vector2( 128, 96 )
 mode = 2
 range_item_cull_mask = 2