basic ECS spawner

addons/gecs/tests/systems/s_test_order_c.gd

@@ -0,0 +1,17 @@
+class_name S_TestOrderC
+extends System
+const NAME = 'S_TestOrderC'
+func deps():
+	return {
+		Runs.After: [S_TestOrderB],
+		Runs.Before: [S_TestOrderD],
+	}
+
+func query():
+	return ECS.world.query.with_all([C_TestOrderComponent])
+
+func process(entities: Array[Entity], components: Array, delta: float):
+	for entity in entities:
+		var comp = entity.get_component(C_TestOrderComponent)
+		comp.execution_log.append("C")
+		comp.value += 100