feat: add emergent world foundations

simulation/commands/ActionCommand.gd

@@ -0,0 +1,53 @@
+class_name ActionCommand
+extends RefCounted
+
+var _command_id: StringName
+var _actor_id: StringName
+var _action_id: StringName
+var _target: WorldTargetHandle
+var _parameters: Dictionary
+
+
+func _init(
+	command_id: StringName = &"",
+	actor_id: StringName = &"",
+	action_id: StringName = &"",
+	target: WorldTargetHandle = null,
+	parameters: Dictionary = {}
+) -> void:
+	_command_id = command_id
+	_actor_id = actor_id
+	_action_id = action_id
+	_target = target
+	_parameters = parameters.duplicate(true)
+
+
+func is_valid() -> bool:
+	return (
+		not _command_id.is_empty()
+		and not _actor_id.is_empty()
+		and not _action_id.is_empty()
+		and _target != null
+		and _target.is_well_formed()
+		and not WorldTargetCapability._contains_object(_parameters)
+	)
+
+
+func get_command_id() -> StringName:
+	return _command_id
+
+
+func get_actor_id() -> StringName:
+	return _actor_id
+
+
+func get_action_id() -> StringName:
+	return _action_id
+
+
+func get_target() -> WorldTargetHandle:
+	return _target
+
+
+func get_parameters() -> Dictionary:
+	return _parameters.duplicate(true)