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framework/scene_graph/components/camera.cpp

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+/* Copyright (c) 2019-2020, 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.
+ */
+
+#include "camera.h"
+
+#include "scene_graph/components/transform.h"
+#include "scene_graph/node.h"
+
+namespace vkb
+{
+namespace sg
+{
+Camera::Camera(const std::string &name) :
+    Component{name}
+{}
+
+std::type_index Camera::get_type()
+{
+	return typeid(Camera);
+}
+
+glm::mat4 Camera::get_view()
+{
+	if (!node)
+	{
+		throw std::runtime_error{"Camera component is not attached to a node"};
+	}
+
+	auto &transform = node->get_component<Transform>();
+	return glm::inverse(transform.get_world_matrix());
+}
+
+void Camera::set_node(Node &n)
+{
+	node = &n;
+}
+
+Node *Camera::get_node()
+{
+	return node;
+}
+
+const glm::mat4 Camera::get_pre_rotation()
+{
+	return pre_rotation;
+}
+
+void Camera::set_pre_rotation(const glm::mat4 &pr)
+{
+	pre_rotation = pr;
+}
+}        // namespace sg
+}        // namespace vkb