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Diffstat (limited to 'mwe/ecs-memory-efficient/src/main.cpp')
| -rw-r--r-- | mwe/ecs-memory-efficient/src/main.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/mwe/ecs-memory-efficient/src/main.cpp b/mwe/ecs-memory-efficient/src/main.cpp new file mode 100644 index 0000000..9e8fbd5 --- /dev/null +++ b/mwe/ecs-memory-efficient/src/main.cpp @@ -0,0 +1,108 @@ +#include <iostream> +#include <vector> +#include <cstdint> + +#include "ComponentManager.h" +#include "GameObjectMax.h" +#include "Components.h" + +int main() { + GameObject gameObect0(0, "Name: 0", "Tag: 0", 0); //Entity 0 + GameObject gameObect1(1, "Name: 1", "Tag: 1", 1); //Entity 1 + GameObject gameObect2(2, "Name: 2", "Tag: 2", 2); //Entity 2 + GameObject gameObect3(3, "Name: 3", "Tag: 3", 3); //Entity 3 + GameObject gameObect4(4, "Name: 4", "Tag: 4", 4); //Entity 4 + GameObject gameObect5(5, "Name: 5", "Tag: 5", 5); //Entity 5 + GameObject gameObect6(6, "Name: 6", "Tag: 6", 6); //Entity 6 + GameObject gameObect7(7, "Name: 7", "Tag: 7", 7); //Entity 7 + + gameObect0.AddComponent<Sprite>("C:/object0"); //Add a sprite to entity0 + gameObect0.AddComponent<Rigidbody>(1, 2, 3); //Also add a rigidbody to entity0 + gameObect0.AddComponent<Rigidbody>(3, 2, 1); //Add a second rigidbody to entity0 + + gameObect1.AddComponent<Rigidbody>(4, 5, 6); //Only add a rigidbody to entity1 + + gameObect2.AddComponent<Sprite>("C:/object2/1"); //Add four sprites to entity2 + gameObect2.AddComponent<Sprite>("C:/object2/2"); + gameObect2.AddComponent<Sprite>("C:/object2/3"); + gameObect2.AddComponent<Sprite>("C:/object2/4"); + gameObect2.AddComponent<Rigidbody>(10, 100, 500); //Add four rigidbodies to entity2 + gameObect2.AddComponent<Rigidbody>(10, 100, 501); + gameObect2.AddComponent<Rigidbody>(10, 100, 502); + gameObect2.AddComponent<Rigidbody>(10, 100, 500); + + //Add non components to entity3, entity4, entity5 and entity6 + + gameObect7.AddComponent<Sprite>("C:/object7"); //Add a sprite to entity 7 + gameObect7.AddComponent<Colider>(30); //Add a colder to entity 7 + + //The entities are now initialized + //Now I will demonstrate some ways of retreiving/getting components + + std::cout << "Finding all sprites of entity 0" << std::endl; + std::vector<std::reference_wrapper<Sprite>> spriteOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Sprite>(gameObect0.mId); + for(Sprite& spriteEntity0 : spriteOfEntity0) { + std::cout << "Sprite of entity 0: " << spriteEntity0.mPath << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all rigidbodies of entity 0" << std::endl; + std::vector<std::reference_wrapper<Rigidbody>> rigidbodyOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Rigidbody>(gameObect0.mId); + for(Rigidbody& rigidbodyEntity0 : rigidbodyOfEntity0) { + std::cout << "Rigidbody of entity 0: " << rigidbodyEntity0.mMass << " " << rigidbodyEntity0.mGravityScale << " " << rigidbodyEntity0.mBodyType << std::endl; + + rigidbodyEntity0.mMass = 15; + } + std::cout << std::endl; + + std::cout << "Finding all coliders of entity 0" << std::endl; + std::vector<std::reference_wrapper<Colider>> coliderOfEntity0 = ComponentManager::GetInstance().GetComponentsByID<Colider>(gameObect0.mId); + for(Colider& coliderEntity0 : coliderOfEntity0) { + std::cout << "Colider of entity 0: " << coliderEntity0.mSize << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all sprites of entity 3" << std::endl; + std::vector<std::reference_wrapper<Sprite>> spriteOfEntity3 = ComponentManager::GetInstance().GetComponentsByID<Sprite>(gameObect3.mId); + for(Sprite& spriteEntity3 : spriteOfEntity3) { + std::cout << "Sprite of entity 3: " << spriteEntity3.mPath << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all rigidbodies of entity 3" << std::endl; + std::vector<std::reference_wrapper<Rigidbody>> rigidbodyOfEntity3 = ComponentManager::GetInstance().GetComponentsByID<Rigidbody>(gameObect3.mId); + for(Rigidbody& rigidbodyEntity3 : rigidbodyOfEntity3) { + std::cout << "Rigidbody of entity 3: " << rigidbodyEntity3.mMass << " " << rigidbodyEntity3.mGravityScale << " " << rigidbodyEntity3.mBodyType << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all sprites of all entities" << std::endl; + std::vector<std::pair<std::reference_wrapper<Sprite>, std::uint32_t>> sprites = ComponentManager::GetInstance().GetComponentsByType<Sprite>(); + for(auto& [sprite, id] : sprites) { + std::cout << "Sprite of id: " << id << ": " << sprite.get().mPath << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all coliders of all entities" << std::endl; + std::vector<std::pair<std::reference_wrapper<Colider>, std::uint32_t>> coliders = ComponentManager::GetInstance().GetComponentsByType<Colider>(); + for(auto& [colider, id] : coliders) { + std::cout << "Colder of id: " << id << ": " << colider.get().mSize << std::endl; + } + std::cout << std::endl; + + std::cout << "Finding all rigidbodies of all entities" << std::endl; + std::vector<std::pair<std::reference_wrapper<Rigidbody>, std::uint32_t>> rigidBodies = ComponentManager::GetInstance().GetComponentsByType<Rigidbody>(); + for(auto& [rigidbody, id] : rigidBodies) { + std::cout << "Rigidbody of id: " << id << ": " << rigidbody.get().mMass << " " << rigidbody.get().mGravityScale << " " << rigidbody.get().mBodyType << std::endl; + + rigidbody.get().mMass = -1; + } + std::cout << std::endl; + + std::cout << "Finding all rigidbodies of all entities for the second time (after changing mMass to -1)" << std::endl; + std::vector<std::pair<std::reference_wrapper<Rigidbody>, std::uint32_t>> rigidBodies2 = ComponentManager::GetInstance().GetComponentsByType<Rigidbody>(); + for(auto& [rigidbody2, id2] : rigidBodies2) { + std::cout << "Rigidbody of id: " << id2 << ": " << rigidbody2.get().mMass << " " << rigidbody2.get().mGravityScale << " " << rigidbody2.get().mBodyType << std::endl; + } + std::cout << std::endl; +} |