basic ECS spawner

addons/gecs/tests/components/c_observer_test.gd

@@ -0,0 +1,22 @@
+## Test component for observer tests with proper property_changed signal emission
+class_name C_ObserverTest
+extends Component
+
+@export var value: int = 0 : set = set_value
+@export var name_prop: String = "" : set = set_name_prop
+
+func set_value(new_value: int):
+	var old_value = value
+	value = new_value
+	# Emit signal for observers to detect the change
+	property_changed.emit(self, "value", old_value, new_value)
+
+func set_name_prop(new_name: String):
+	var old_name = name_prop
+	name_prop = new_name
+	# Emit signal for observers to detect the change
+	property_changed.emit(self, "name_prop", old_name, new_name)
+
+func _init(_value: int = 0, _name: String = ""):
+	value = _value
+	name_prop = _name