conforms file names to consistant standard

ui/menus/MainMenu/level_selecter_main_menu.gd

@@ -0,0 +1,52 @@
+class_name MainMenuLevelSelector extends PanelContainer
+
+signal level_selected(specs: LevelConfig, side_chosen: int)
+
+var side: int = 0
+
+@export var levels: Array[LevelConfig] = []
+
+func _on_button_pressed() -> void:
+	side = 0
+	$VBoxContainer/Label.text = tr("LABEL_CAMPAIGN_DESC")
+
+
+func _on_button_2_pressed() -> void:
+	side = 1
+	$VBoxContainer/Label.text = tr("LABEL_ENDLESS_DESC")
+
+
+func _ready() -> void:
+	var i: int = 0
+	for level: LevelConfig in levels:
+		i += 1
+		var button: Button = Button.new()
+		button.text = "Level " + str(i)
+		$VBoxContainer.add_child(button)
+		button.pressed.connect(start_level.bind(i - 1))
+		button.mouse_entered.connect(hover_config.bind(i - 1))
+
+
+func hover_config(level: int) -> void:
+	if !side:
+		var high_score: int = 0
+		if Data.save_data.level_high_scores.has(levels[level].display_title):
+			high_score = Data.save_data.level_high_scores[levels[level].display_title]
+	
+		if high_score > 0:
+			$VBoxContainer/HighScoreLabel.text = "Highest Wave: " + str(high_score)
+		else:
+			$VBoxContainer/HighScoreLabel.text = "Never attempted!"
+	else:
+		var high_score: int = 0
+		if Data.save_data.endless_high_scores.has(levels[level].display_title):
+			high_score = Data.save_data.endless_high_scores[levels[level].display_title]
+	
+		if high_score > 0:
+			$VBoxContainer/HighScoreLabel.text = "Highest B-SIDE Wave: " + str(high_score)
+		else:
+			$VBoxContainer/HighScoreLabel.text = "Never attempted!"
+
+
+func start_level(level: int) -> void:
+	level_selected.emit(levels[level], side)