feat: Implement core player movement with advanced pushing mechanics, define game modes, and introduce various new managers and UI components.

scripts/ui/boot_screen.gd

@@ -162,11 +162,11 @@ func _load_existing_patches() -> void:
 	
 	var patches: Array[String] = []
 	dir.list_dir_begin()
-	var file := dir.get_next()
-	while file != "":
-		if file.ends_with(".pck"):
-			patches.append(file)
-		file = dir.get_next()
+	var patch_file := dir.get_next()
+	while patch_file != "":
+		if patch_file.ends_with(".pck"):
+			patches.append(patch_file)
+		patch_file = dir.get_next()
 	dir.list_dir_end()
 	
 	# Sort patches by version (filename includes version)

scripts/ui/powerup_inventory_ui.gd

@@ -1,5 +1,7 @@
 extends Control
 
+
+
 # PowerUpInventoryUI - Displays stored powerups and handles selection
 
 # UI References
@@ -146,6 +148,12 @@ func _update_btn_shortcut(effect_id: int, btn: Button):
 	var is_sng = mode == GameMode.Mode.STOP_N_GO
 	
 	var key_text = ""
+	
+	# Safety check for SettingsManager (Autoload)
+	if not SettingsManager:
+		sc_lbl.text = ""
+		return
+
 	if is_sng:
 		match effect_id:
 			0: key_text = SettingsManager.get_control_text("powerup_1")

scripts/ui/settings_menu.gd

@@ -26,7 +26,9 @@ var listening_action: String = "" # Set when waiting for a keypress
 func _ready():
 	# Theme inheritance is broken by CanvasLayer root, no need for theme = null
 	_load_ui_values()
-	_connect_signals()
+	
+	if SettingsManager:
+		_connect_signals()
 	
 	# Initial visibility
 	visible = false
@@ -165,7 +167,7 @@ func _update_all_key_labels():
 
 func _update_key_label(action_name: String):
 	var btn = get_node_or_null("%" + action_name.to_pascal_case() + "Btn")
-	if btn:
+	if btn and SettingsManager:
 		btn.text = SettingsManager.get_control_text(action_name)
 		btn.modulate = Color.WHITE