Fix problems reported by static checks

source/main-menu/Play.gd

@@ -95,7 +95,8 @@ func _on_player_selected(selected_option_id, selected_player_id):
 			):
 				option_nodes[option_node_id].selected = (Constants.PlayerType.SIMPLE_CLAIRVOYANT_AI)
 	elif selected_option_id == Constants.PlayerType.NONE:
-		var option_nodes_with_player_controllers = find_child("GridContainer").find_children("OptionButton*").filter(
+		var option_buttons = find_child("GridContainer").find_children("OptionButton*")
+		var option_nodes_with_player_controllers = option_buttons.filter(
 			func(option_node): return option_node.selected != Constants.PlayerType.NONE
 		)
 		if option_nodes_with_player_controllers.size() < 2:

source/utils/IconRenderBooth.gd

@@ -1,50 +1,46 @@
 extends Node3D
 
-
 var icon_folder: String = "res://assets/ui/icons/"
 
+var icons_to_render_count: int = 0
+var icon_render_index: int = 0
+
 @onready var render_booth: SubViewport = $RenderBooth
 
 
-# Called when the node enters the scene tree for the first time.
 func _ready() -> void:
 	icons_to_render_count = render_booth.get_child_count()
-	
+
 	for c in render_booth.get_children():
 		c.visible = false
-
-	set_process(true)
-
 
-var icons_to_render_count: int = 0
-var icon_render_index: int = 0
+	set_process(true)
 
 
 func render_icon() -> void:
 	if icon_render_index > 0:
 		render_booth.get_child(icon_render_index - 1).visible = false
-	
+
 	var rendered_icon_node: Node3D = render_booth.get_child(icon_render_index)
 	var rendered_icon_camera: Camera3D = rendered_icon_node.get_node("Camera3D")
-	
+
 	rendered_icon_node.visible = true
 	rendered_icon_camera.current = true
-	
+
 	var icon_name: String = rendered_icon_node.name
-	
+
 	await get_tree().process_frame
-	
+
 	var img: Image = render_booth.get_texture().get_image()
-	
+
 	var filepath: String = icon_folder + icon_name + ".png"
 	img.save_png(filepath)
-	
+
 	icon_render_index += 1
-	
+
 	if icon_render_index >= icons_to_render_count:
 		set_process(false)
 
 
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-func _process(delta: float) -> void:
+func _process(_delta: float) -> void:
 	render_icon()