| /* |
| * Copyright (C) 2016 Google, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef SIMULATION_H |
| #define SIMULATION_H |
| |
| #include <memory> |
| #include <random> |
| #include <vector> |
| |
| #include <glm/glm.hpp> |
| |
| #include "Meshes.h" |
| |
| class Animation { |
| public: |
| Animation(unsigned rng_seed, float scale); |
| |
| glm::mat4 transformation(float t); |
| |
| private: |
| struct Data { |
| glm::vec3 axis; |
| float speed; |
| float scale; |
| |
| glm::mat4 matrix; |
| }; |
| |
| std::mt19937 rng_; |
| std::uniform_real_distribution<float> dir_; |
| std::uniform_real_distribution<float> speed_; |
| |
| Data current_; |
| }; |
| |
| class Curve; |
| |
| class Path { |
| public: |
| Path(unsigned rng_seed); |
| |
| glm::vec3 position(float t); |
| |
| private: |
| struct Subpath { |
| glm::vec3 origin; |
| float start; |
| float end; |
| float now; |
| |
| std::shared_ptr<Curve> curve; |
| }; |
| |
| void generate_subpath(); |
| |
| std::mt19937 rng_; |
| std::uniform_int_distribution<> type_; |
| std::uniform_real_distribution<float> duration_; |
| |
| Subpath current_; |
| }; |
| |
| class Simulation { |
| public: |
| Simulation(int object_count); |
| |
| struct Object { |
| Meshes::Type mesh; |
| glm::vec3 light_pos; |
| glm::vec3 light_color; |
| |
| Animation animation; |
| Path path; |
| |
| uint32_t frame_data_offset; |
| |
| glm::mat4 model; |
| }; |
| |
| const std::vector<Object> &objects() const { return objects_; } |
| |
| unsigned int rng_seed() { return random_dev_(); } |
| |
| void set_frame_data_size(uint32_t size); |
| void update(float time, int begin, int end); |
| |
| private: |
| std::random_device random_dev_; |
| std::vector<Object> objects_; |
| }; |
| |
| #endif // SIMULATION_H |