1 files changed, 128 insertions, 0 deletions
diff --git a/src/test/Profiling.cpp b/src/test/Profiling.cpp
new file mode 100644
index 0000000..9929288
--- /dev/null
+++ b/src/test/Profiling.cpp
@@ -0,0 +1,128 @@
+#include "system/ParticleSystem.h"
+#include "system/PhysicsSystem.h"
+#include "system/RenderSystem.h"
+#include <cmath>
+#include <chrono>
+#include <gtest/gtest.h>
+
+#define private public
+#define protected public
+
+#include <crepe/ComponentManager.h>
+#include <crepe/api/Event.h>
+#include <crepe/api/EventManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Script.h>
+#include <crepe/api/Transform.h>
+#include <crepe/system/CollisionSystem.h>
+#include <crepe/system/ScriptSystem.h>
+#include <crepe/types.h>
+#include <crepe/util/Log.h>
+
+using namespace std;
+using namespace std::chrono_literals;
+using namespace crepe;
+using namespace testing;
+
+class CollisionHandler : public Script {
+public:
+	int box_id;
+
+	CollisionHandler(int box_id) {
+		this->box_id = box_id;
+	}
+
+	bool on_collision(const CollisionEvent& ev) {
+		// test load?
+		return true;
+	}
+
+	void init() {
+		subscribe<CollisionEvent>([this](const CollisionEvent& ev) -> bool {
+			return this->on_collision(ev);
+		});
+	}
+	void update() {
+		// Retrieve component from the same GameObject this script is on
+	}
+};
+
+class Profiling : public Test {
+public:
+	ComponentManager mgr;
+	// Add system used for profling tests 
+	CollisionSystem collision_sys{mgr};
+	PhysicsSystem physics_sys{mgr};
+	ParticleSystem particle_sys{mgr};
+	RenderSystem render_sys{mgr};
+	ScriptSystem script_sys{mgr};
+
+	// Store individual function timings
+	std::map<std::string, long long> timings; 
+
+	// Min and max gameobject that should and can be created
+	int min_gameobject_count = 100;
+	int max_gameobject_count = 100;
+	
+	void SetUp() override {
+		
+		GameObject do_not_use = mgr.new_object("DO_NOT_USE","",{0,0});
+		do_not_use.add_component<Camera>(Color::WHITE);
+		// initialize systems here:
+		//calls init
+		script_sys.update();
+		//creates window
+		render_sys.update();
+	}
+
+	// Helper function to time an update call and store its duration
+	template <typename Func>
+	long long time_function(const std::string& name, Func&& func) {
+		auto start = std::chrono::steady_clock::now();
+		func();
+		auto end = std::chrono::steady_clock::now();
+		auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
+		timings[name] = duration; // Store the duration in microseconds
+		return duration; // Return the duration in microseconds
+	}
+
+	// Run and profile all systems, return the total time in milliseconds
+	long long run_all_systems() {
+		long long total_microseconds = 0;
+		total_microseconds += time_function("PhysicsSystem", [&]() { physics_sys.update(); });
+		total_microseconds += time_function("CollisionSystem", [&]() { collision_sys.update(); });
+		total_microseconds += time_function("ParticleSystem", [&]() { particle_sys.update(); });
+		total_microseconds += time_function("RenderSystem", [&]() { render_sys.update(); });
+		return total_microseconds;
+	}
+
+	// Print timings of all functions
+	void log_timings(long long total_time,int game_object_count) const {
+		std::stringstream ss;
+		ss <<  std::endl <<"Function timings:\n";  // Starting with a header
+		for (const auto& [name, duration] : timings) {
+				ss << name << " took " << duration / 1000.0 << " ms (" << duration << " µs). " << std::endl;
+		}
+		ss << "Total time: " << total_time / 1000.0  << "ms (" << total_time  << " µs)" << std::endl;
+		ss << "Amount of gameobjects: " << game_object_count << std::endl;
+		// Use GTest INFO macro to print the accumulated log without extra newlines
+		GTEST_LOG_(INFO) << ss.str();
+	}
+};
+
+TEST_F(Profiling, Profiling_example) {
+	int game_object_count = 0;
+	long long total_time = 0;
+	while (total_time < 16000) {
+		game_object_count++;
+		{
+			//define gameobject used for testing
+			GameObject gameobject = mgr.new_object("gameobject","",{0,0});
+		}
+		total_time = run_all_systems();
+		if(game_object_count >= max_gameobject_count) break;
+	}
+	log_timings(total_time,game_object_count);
+	EXPECT_GE(game_object_count, min_gameobject_count);
+}