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framework/scene_graph/scripts/free_camera.h

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+/* Copyright (c) 2019-2024, 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 <unordered_map>
+#include <vector>
+
+#include "common/error.h"
+
+#include "common/glm_common.h"
+
+#include "scene_graph/script.h"
+
+namespace vkb
+{
+namespace sg
+{
+class FreeCamera : public NodeScript
+{
+  public:
+	static const float TOUCH_DOWN_MOVE_FORWARD_WAIT_TIME;
+
+	static const float ROTATION_MOVE_WEIGHT;
+
+	static const float KEY_ROTATION_MOVE_WEIGHT;
+
+	static const float TRANSLATION_MOVE_WEIGHT;
+
+	static const float TRANSLATION_MOVE_STEP;
+
+	static const uint32_t TRANSLATION_MOVE_SPEED;
+
+	FreeCamera(Node &node);
+
+	virtual ~FreeCamera() = default;
+
+	virtual void update(float delta_time) override;
+
+	virtual void input_event(const InputEvent &input_event) override;
+
+	virtual void resize(uint32_t width, uint32_t height) override;
+
+  private:
+	float speed_multiplier{3.0f};
+
+	glm::vec2 mouse_move_delta{0.0f};
+
+	glm::vec2 mouse_last_pos{0.0f};
+
+	glm::vec2 touch_move_delta{0.0f};
+
+	glm::vec2 touch_last_pos{0.0f};
+
+	float touch_pointer_time{0.0f};
+
+	std::unordered_map<KeyCode, bool> key_pressed;
+
+	std::unordered_map<MouseButton, bool> mouse_button_pressed;
+
+	std::unordered_map<int32_t, bool> touch_pointer_pressed;
+};
+}        // namespace sg
+}        // namespace vkb