new build mechanic

Scripts/global_script.gd

@@ -0,0 +1,17 @@
+extends Node3D
+@export var debugLabel1: Label
+
+
+signal exit_build_mode
+
+var build_mode: bool = false
+
+
+func _input(event: InputEvent) -> void:
+	if event.is_action_released("enter_build_mode"):
+		if build_mode:
+			exit_build_mode.emit()
+			build_mode = false
+		else:
+			build_mode = true
+