init

framework/scene_graph/node.h

@@ -0,0 +1,91 @@
+/* Copyright (c) 2018-2019, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <typeindex>
+#include <unordered_map>
+#include <vector>
+
+#include "scene_graph/components/transform.h"
+
+namespace vkb
+{
+namespace sg
+{
+class Component;
+
+/// @brief A leaf of the tree structure which can have children and a single parent.
+class Node
+{
+  public:
+	Node(const size_t id, const std::string &name);
+
+	virtual ~Node() = default;
+
+	const size_t get_id() const;
+
+	const std::string &get_name() const;
+
+	Transform &get_transform()
+	{
+		return transform;
+	}
+
+	void set_parent(Node &parent);
+
+	Node *get_parent() const;
+
+	void add_child(Node &child);
+
+	const std::vector<Node *> &get_children() const;
+
+	void set_component(Component &component);
+
+	template <class T>
+	inline T &get_component()
+	{
+		return dynamic_cast<T &>(get_component(typeid(T)));
+	}
+
+	Component &get_component(const std::type_index index);
+
+	template <class T>
+	bool has_component()
+	{
+		return has_component(typeid(T));
+	}
+
+	bool has_component(const std::type_index index);
+
+  private:
+	size_t id;
+
+	std::string name;
+
+	Transform transform;
+
+	Node *parent{nullptr};
+
+	std::vector<Node *> children;
+
+	std::unordered_map<std::type_index, Component *> components;
+};
+}        // namespace sg
+}        // namespace vkb