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framework/scene_graph/components/aabb.h

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+/* Copyright (c) 2018-2024, 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 <typeinfo>
+#include <vector>
+
+#include "common/error.h"
+
+#include "common/glm_common.h"
+
+#include "scene_graph/component.h"
+#include "scene_graph/components/sub_mesh.h"
+
+namespace vkb
+{
+namespace sg
+{
+/**
+ * @brief Axis Aligned Bounding Box
+ */
+class AABB : public Component
+{
+  public:
+	AABB();
+
+	AABB(const glm::vec3 &min, const glm::vec3 &max);
+
+	virtual ~AABB() = default;
+
+	virtual std::type_index get_type() override;
+
+	/**
+	 * @brief Update the bounding box based on the given vertex position
+	 * @param point The 3D position of a point
+	 */
+	void update(const glm::vec3 &point);
+
+	/**
+	 * @brief Update the bounding box based on the given submesh vertices
+	 * @param vertex_data The position vertex data
+	 * @param index_data The index vertex data
+	 */
+	void update(const std::vector<glm::vec3> &vertex_data, const std::vector<uint16_t> &index_data);
+
+	/**
+	 * @brief Apply a given matrix transformation to the bounding box
+	 * @param transform The matrix transform to apply
+	 */
+	void transform(glm::mat4 &transform);
+
+	/**
+	 * @brief Scale vector of the bounding box
+	 * @return vector in 3D space
+	 */
+	glm::vec3 get_scale() const;
+
+	/**
+	 * @brief Center position of the bounding box
+	 * @return vector in 3D space
+	 */
+	glm::vec3 get_center() const;
+
+	/**
+	 * @brief Minimum position of the bounding box
+	 * @return vector in 3D space
+	 */
+	glm::vec3 get_min() const;
+
+	/**
+	 * @brief Maximum position of the bounding box
+	 * @return vector in 3D space
+	 */
+	glm::vec3 get_max() const;
+
+	/**
+	 * @brief Resets the min and max position coordinates
+	 */
+	void reset();
+
+  private:
+	glm::vec3 min;
+
+	glm::vec3 max;
+};
+}        // namespace sg
+}        // namespace vkb