1 files changed, 33 insertions, 20 deletions

diff --git a/src/crepe/system/PhysicsSystem.cpp b/src/crepe/system/PhysicsSystem.cpp
index be768f9..a1d35bb 100644
--- a/src/crepe/system/PhysicsSystem.cpp
+++ b/src/crepe/system/PhysicsSystem.cpp
@@ -5,65 +5,78 @@
 #include "../api/Transform.h"
 #include "../api/Vector2.h"
 #include "../manager/ComponentManager.h"
+#include "../manager/LoopTimerManager.h"
+#include "../manager/Mediator.h"
 
 #include "PhysicsSystem.h"
 
 using namespace crepe;
+using namespace std::chrono;
 
 void PhysicsSystem::update() {
-	double dt = LoopTimer::get_instance().get_fixed_delta_time();
-	ComponentManager & mgr = this->mediator.component_manager;
+
+	const Mediator & mediator = this->mediator;
+	ComponentManager & mgr = mediator.component_manager;
+	LoopTimerManager & loop_timer = mediator.loop_timer;
 	RefVector<Rigidbody> rigidbodies = mgr.get_components_by_type<Rigidbody>();
-	
+
+	duration_t delta_time = loop_timer.get_scaled_fixed_delta_time();
+	float dt = duration<float>(delta_time).count();
 
 	float gravity = Config::get_instance().physics.gravity;
 	for (Rigidbody & rigidbody : rigidbodies) {
 		if (!rigidbody.active) continue;
-		Transform & transform = mgr.get_components_by_id<Transform>(rigidbody.game_object_id).front().get();
+		Transform & transform
+			= mgr.get_components_by_id<Transform>(rigidbody.game_object_id).front().get();
 
 		switch (rigidbody.data.body_type) {
 			case Rigidbody::BodyType::DYNAMIC:
 				if (transform.game_object_id == rigidbody.game_object_id) {
 					// Add gravity
+
+					if (rigidbody.data.mass <= 0) {
+						throw std::runtime_error("Mass must be greater than 0");
+					}
+
+					if (gravity <= 0) {
+						throw std::runtime_error("Config Gravity must be greater than 0");
+					}
+
 					if (rigidbody.data.gravity_scale > 0) {
 						rigidbody.data.linear_velocity.y
-							+= (rigidbody.data.mass * rigidbody.data.gravity_scale
-								* gravity * dt);
+							+= (rigidbody.data.mass * rigidbody.data.gravity_scale * gravity
+								* dt);
 					}
 					// Add coefficient rotation
 					if (rigidbody.data.angular_velocity_coefficient > 0) {
 						rigidbody.data.angular_velocity
 							*= std::pow(rigidbody.data.angular_velocity_coefficient, dt);
-							
 					}
 
 					// Add coefficient movement horizontal
-					if (rigidbody.data.linear_velocity_coefficient.x > 0)
-					{
+					if (rigidbody.data.linear_velocity_coefficient.x > 0) {
 						rigidbody.data.linear_velocity.x
-								*= std::pow(rigidbody.data.linear_velocity_coefficient.x, dt);
+							*= std::pow(rigidbody.data.linear_velocity_coefficient.x, dt);
 					}
 
 					// Add coefficient movement horizontal
-					if (rigidbody.data.linear_velocity_coefficient.y > 0)
-					{
+					if (rigidbody.data.linear_velocity_coefficient.y > 0) {
 						rigidbody.data.linear_velocity.y
-								*= std::pow(rigidbody.data.linear_velocity_coefficient.y, dt);
+							*= std::pow(rigidbody.data.linear_velocity_coefficient.y, dt);
 					}
 
 					// Max velocity check
 					if (rigidbody.data.angular_velocity
 						> rigidbody.data.max_angular_velocity) {
-						rigidbody.data.angular_velocity
-							= rigidbody.data.max_angular_velocity;
+						rigidbody.data.angular_velocity = rigidbody.data.max_angular_velocity;
 					} else if (rigidbody.data.angular_velocity
-									< -rigidbody.data.max_angular_velocity) {
-						rigidbody.data.angular_velocity
-							= -rigidbody.data.max_angular_velocity;
+							   < -rigidbody.data.max_angular_velocity) {
+						rigidbody.data.angular_velocity = -rigidbody.data.max_angular_velocity;
 					}
-					
+
 					// Set max velocity to maximum length
-					if(rigidbody.data.linear_velocity.length() > rigidbody.data.max_linear_velocity) {
+					if (rigidbody.data.linear_velocity.length()
+						> rigidbody.data.max_linear_velocity) {
 						rigidbody.data.linear_velocity.normalize();
 						rigidbody.data.linear_velocity *= rigidbody.data.max_linear_velocity;
 					}