| /* |
| * Copyright (C) 2016 Google, Inc. |
| * |
| * 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. |
| */ |
| |
| #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 |