1 files changed, 55 insertions, 0 deletions
diff --git a/src/crepe/PhysicsSystem.cpp b/src/crepe/PhysicsSystem.cpp
new file mode 100644
index 0000000..7d16044
--- /dev/null
+++ b/src/crepe/PhysicsSystem.cpp
@@ -0,0 +1,55 @@
+#include "PhysicsSystem.h"
+#include "ComponentManager.h"
+#include "Rigidbody.h"
+#include "Transform.h"
+#include "Force.h"
+#include <iostream>
+
+using namespace crepe;
+
+PhysicsSystem::PhysicsSystem() {
+
+}
+
+void PhysicsSystem::update() {
+	ComponentManager& mgr = ComponentManager::get_instance();
+	std::vector<std::reference_wrapper<Rigidbody>> rigidbodies = mgr.get_components_by_type<Rigidbody>();
+	std::vector<std::reference_wrapper<Transform>> transforms = mgr.get_components_by_type<Transform>();
+	
+	for (Rigidbody& rigidbody : rigidbodies) {
+
+		switch (rigidbody.body_type)
+		{
+		case BodyType::Dynamic :
+			for (Transform& transform : transforms) {
+				if(transform.gameObjectId == rigidbody.gameObjectId)
+				{
+					rigidbody.velocity_x = 0;
+					rigidbody.velocity_y = 0;
+					std::vector<std::reference_wrapper<Force>> Forces = mgr.get_components_by_id<Force>(rigidbody.gameObjectId);
+					rigidbody.velocity_y += rigidbody.gravity_scale * 1 * rigidbody.mass;
+
+					for (Force& force : Forces)
+					{
+						rigidbody.velocity_x += force.force_x;
+						rigidbody.velocity_y += force.force_y;	
+					}
+					
+					std::cout << "before transform.postion.x " << transform.postion.x << std::endl;
+					std::cout << "before transform.postion.y " << transform.postion.y << std::endl;
+					transform.postion.x += rigidbody.velocity_x;
+					transform.postion.y += rigidbody.velocity_y;
+					std::cout << "after transform.postion.x " << transform.postion.x << std::endl;
+					std::cout << "after transform.postion.y " << transform.postion.y << std::endl;
+				}
+			}	
+			break;
+		case BodyType::Kinematic :
+			break; //(scripts)
+		case BodyType::Static :
+			break; //(unmoveable objects)
+		default:
+			break;
+		}
+	}
+}