Merge branch 'max/POC-ECS-memory-efficient' of github.com:lonkaars/crepe

4 files changed, 93 insertions, 0 deletions

diff --git a/mwe/ecs-memory-efficient/src/ComponentManager.cpp b/mwe/ecs-memory-efficient/src/ComponentManager.cpp
new file mode 100644
index 0000000..20d0ce0
--- /dev/null
+++ b/mwe/ecs-memory-efficient/src/ComponentManager.cpp
@@ -0,0 +1,21 @@
+#include "ComponentManager.h"
+
+ComponentManager ComponentManager::mInstance;
+
+ComponentManager& ComponentManager::GetInstance() {
+	return mInstance;
+}
+
+ComponentManager::ComponentManager() {}
+
+std::vector<std::reference_wrapper<Sprite>> ComponentManager::getAllSpriteReferences() {
+	return mSpriteContainer.getAllReferences();
+}
+
+std::vector<std::reference_wrapper<Rigidbody>> ComponentManager::getAllRigidbodyReferences() {
+	return mRigidbodyContainer.getAllReferences();
+}
+
+std::vector<std::reference_wrapper<Colider>> ComponentManager::getAllColiderReferences() {
+	return mColiderContainer.getAllReferences();
+}
diff --git a/mwe/ecs-memory-efficient/src/Components.cpp b/mwe/ecs-memory-efficient/src/Components.cpp
new file mode 100644
index 0000000..c8347b3
--- /dev/null
+++ b/mwe/ecs-memory-efficient/src/Components.cpp
@@ -0,0 +1,11 @@
+#include "Components.h"
+#include <iostream>
+
+Component::Component() : mActive(true) {}
+
+Sprite::Sprite(std::string path) : mPath(path) {}
+
+Rigidbody::Rigidbody(int mass, int gravityScale, int bodyType)
+	: mMass(mass), mGravityScale(gravityScale), mBodyType(bodyType) {}
+
+Colider::Colider(int size) : mSize(size) {}
diff --git a/mwe/ecs-memory-efficient/src/GameObjectMax.cpp b/mwe/ecs-memory-efficient/src/GameObjectMax.cpp
new file mode 100644
index 0000000..b0c5af7
--- /dev/null
+++ b/mwe/ecs-memory-efficient/src/GameObjectMax.cpp
@@ -0,0 +1,7 @@
+#include "GameObjectMax.h"
+
+#include "ComponentManager.h"
+
+GameObject::GameObject(std::uint32_t id, std::string name, std::string tag,
+					   int layer)
+	: mId(id), mName(name), mTag(tag), mActive(true), mLayer(layer) {}
diff --git a/mwe/ecs-memory-efficient/src/main.cpp b/mwe/ecs-memory-efficient/src/main.cpp
new file mode 100644
index 0000000..c25816b
--- /dev/null
+++ b/mwe/ecs-memory-efficient/src/main.cpp
@@ -0,0 +1,54 @@
+#include <iostream>
+#include <vector>
+#include <cstdint>
+#include <chrono>
+
+#include "ComponentManager.h"
+#include "GameObjectMax.h"
+#include "Components.h"
+
+int main() {
+	auto startAdding = std::chrono::high_resolution_clock::now();
+
+	GameObject* gameObject[100000];
+
+	for(int i = 0; i < 100000; ++i) {
+		gameObject[i] = new GameObject(i, "Name", "Tag", 0);
+
+		gameObject[i]->addSpriteComponent("C:/Test");
+		gameObject[i]->addRigidbodyComponent(0, 0, i);
+		gameObject[i]->addColiderComponent(i);
+	}
+
+	auto stopAdding = std::chrono::high_resolution_clock::now();
+
+	//This is what systems would do:
+
+	std::vector<std::reference_wrapper<Sprite>> allSprites = ComponentManager::GetInstance().getAllSpriteReferences();
+	for(Sprite& sprite : allSprites) {
+		//std::cout << sprite.mPath << std::endl;
+	}
+	//std::cout << std::endl;
+
+	std::vector<std::reference_wrapper<Rigidbody>> allRigidbody = ComponentManager::GetInstance().getAllRigidbodyReferences();
+	for(Rigidbody& rigidbody : allRigidbody) {
+		//std::cout << rigidbody.mMass << " " << rigidbody.mGravityScale << " " << rigidbody.mBodyType << std::endl;
+	}
+	//std::cout << std::endl;
+
+	std::vector<std::reference_wrapper<Colider>> allColider = ComponentManager::GetInstance().getAllColiderReferences();
+	for(Colider& colider : allColider) {
+		//std::cout << colider.mSize << std::endl;
+	}
+
+	auto stopLooping = std::chrono::high_resolution_clock::now();
+
+	for (int i = 0; i < 100000; ++i) {
+    	delete gameObject[i];
+	}
+
+	auto Addtime = std::chrono::duration_cast<std::chrono::microseconds>(stopAdding - startAdding);
+	auto LoopTime = std::chrono::duration_cast<std::chrono::microseconds>(stopLooping - stopAdding);
+	std::cout << "AddTime: " << Addtime.count() << " us" << std::endl;
+	std::cout << "LoopTime: " << LoopTime.count() << " us" << std::endl;
+}