4 files changed, 136 insertions, 3 deletions
diff --git a/src/example/CMakeLists.txt b/src/example/CMakeLists.txt
index 53f584f..ceb8f9d 100644
--- a/src/example/CMakeLists.txt
+++ b/src/example/CMakeLists.txt
@@ -19,4 +19,7 @@ endfunction()
 add_example(audio_internal)
 add_example(components_internal)
 add_example(script)
-
+add_example(particle)
+add_example(Physics)
+target_link_libraries(particle PUBLIC SDL2)
+target_link_libraries(Physics PUBLIC SDL2)
diff --git a/src/example/Physics.cpp b/src/example/Physics.cpp
new file mode 100644
index 0000000..6499fb0
--- /dev/null
+++ b/src/example/Physics.cpp
@@ -0,0 +1,28 @@
+#include <iostream>
+#include <thread>
+#include <chrono>
+#include "Transform.h"
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Force.h>
+#include "PhysicsSystem.h"
+#include <crepe/Component.h>
+#include <crepe/ComponentManager.h>
+#include <crepe/api/GameObject.h>
+
+using namespace crepe::api;
+using namespace crepe;
+using namespace std;
+
+
+int main(int argc, char* argv[]) {
+	PhysicsSystem physicsSystem;
+	GameObject * game_object[2];
+	game_object[1] = new GameObject(2, "Name", "Tag", 0); // not found not used
+	game_object[0] = new GameObject(5, "Name", "Tag", 0);
+	Position position = {0, 0};
+	game_object[0]->add_component<Transform>(position,0,0);
+	game_object[0]->add_component<Rigidbody>(1, 1 , BodyType::Dynamic);
+	game_object[0]->add_component<Force>(1 , 0);
+	physicsSystem.update(); 
+    return 0;
+}
diff --git a/src/example/components_internal.cpp b/src/example/components_internal.cpp
index e2169e1..ae6c765 100644
--- a/src/example/components_internal.cpp
+++ b/src/example/components_internal.cpp
@@ -42,8 +42,8 @@ int main() {
 	auto stop_adding = chrono::high_resolution_clock::now();
 
 	auto sprites = mgr.get_components_by_type<Sprite>();
-	for (auto sprite : sprites) {
-		assert(sprite.get().path == "test");
+	for (auto & sprite : sprites) {
+		assert(sprite.path == "test");
 	}
 
 	auto stop_looping = chrono::high_resolution_clock::now();
diff --git a/src/example/particle.cpp b/src/example/particle.cpp
new file mode 100644
index 0000000..df1dbfd
--- /dev/null
+++ b/src/example/particle.cpp
@@ -0,0 +1,102 @@
+#include <iostream>
+#include <thread>
+#include <chrono>
+#include "SDLApp.h"
+#include "ParticleEmitter.h"
+#include "ParticleSystem.h"
+#include "Particle.h"
+#include <crepe/Component.h>
+#include <crepe/ComponentManager.h>
+#include <crepe/GameObject.h>
+#include <chrono>
+
+using namespace crepe;
+using namespace std;
+
+const int WINDOW_WIDTH = 800;
+const int WINDOW_HEIGHT = 600;
+
+int main(int argc, char* argv[]) {
+    SDLApp app(WINDOW_WIDTH, WINDOW_HEIGHT);
+
+    if (!app.initialize()) {
+        cerr << "Failed to initialize SDLApp." << endl;
+        return 1;
+    }
+
+	
+	GameObject * game_object[1];
+	game_object[0] = new GameObject(0, "Name", "Tag", 0);
+	
+
+    ParticleSystem particleSystem;
+
+    unsigned int maxParticles = 100;         // maximum number of particles
+    unsigned int emissionRate = 10;          // particles created per second
+    unsigned int speed = 50;                 // base speed of particles
+    unsigned int speedOffset = 10;           // random offset for particle speed
+    unsigned int angle = 270;                 // base angle of particle emission
+    unsigned int angleOffset = 30;           // random offset for particle angle
+    float beginLifespan = 0.0f;             // beginning lifespan of particles
+    float endLifespan = 6.0f;               // ending lifespan of particles
+
+    // Vector to hold all the emitters
+    // vector<ParticleEmitter> emitters;
+	game_object[0]->add_component<ParticleEmitter>(maxParticles, emissionRate, speed, speedOffset, angle, angleOffset, beginLifespan, endLifespan);
+
+	
+	
+
+    // Loop to create 1000 emitters
+    // for (unsigned int i = 0; i < 1000; ++i) {
+    //     ParticleEmitter emitter(maxParticles, emissionRate, speed, speedOffset, angle, angleOffset, beginLifespan, endLifespan);
+        
+    //     // Set a position for each emitter, modifying the position for demonstration
+    //     emitter.m_position = {static_cast<float>(200 + (i % 100)), static_cast<float>(200 + (i / 100) * 10)}; // Adjust position for each emitter
+        
+    //     emitters.push_back(emitter); // Add the emitter to the vector
+    // }
+    float deltaTime = 0.1f;
+    bool running = true;
+    cout << "start loop " << endl;
+    while (running) {
+        app.handleEvents(running);
+
+        // Start timing
+        auto start = chrono::high_resolution_clock::now();
+
+
+		// POC CODE
+        particleSystem.update(); 
+		// POC CODE
+
+        // End timing
+        auto end = chrono::high_resolution_clock::now();
+        chrono::duration<float, milli> duration = end - start; // get duration in milliseconds
+
+        cout << "Update took " << duration.count() << " ms" << endl;
+        app.clearScreen();
+
+        start = chrono::high_resolution_clock::now();
+        // render particles using the drawSquare method from SDLApp
+		ComponentManager& mgr = ComponentManager::get_instance();
+		std::vector<std::reference_wrapper<ParticleEmitter>> emitters = mgr.get_components_by_type<ParticleEmitter>();
+        for (const ParticleEmitter& emitter : emitters) {
+            for (const Particle& particle : emitter.particles) {
+                if(particle.active)app.drawSquare(particle.position.x, particle.position.y, 5); // draw each particle
+            }
+        }
+        
+
+        app.presentScreen();
+        end = chrono::high_resolution_clock::now();
+         duration = end - start; // get duration in milliseconds
+
+        cout << "screen took " << duration.count() << " ms" << endl;
+
+        this_thread::sleep_for(chrono::milliseconds(20)); // simulate ~50 FPS
+    }
+
+    app.cleanUp();
+    return 0;
+}