feat: implement contact listeners

destrum/src/Physics/PhysicsSceneBridge.cpp

@@ -1,6 +1,7 @@
 #include <destrum/Physics/PhysicsSceneBridge.h>
 
 #include <destrum/Components/Physics/Rigidbody.h>
+#include <destrum/ObjectModel/Component.h>
 #include <destrum/ObjectModel/GameObject.h>
 
 PhysicsSceneBridge::PhysicsSceneBridge(std::unique_ptr<PhysicsWorld> world)
@@ -8,14 +9,16 @@ PhysicsSceneBridge::PhysicsSceneBridge(std::unique_ptr<PhysicsWorld> world)
 }
 
 void PhysicsSceneBridge::RegisterGameObject(GameObject& object) {
+    if (!m_World) return;
     if (auto* rb = object.GetComponent<Rigidbody>()) {
-        if (!rb->HasPhysicsBody() || rb->GetPhysicsWorld() != &GetWorld()) {
+        if (!rb->HasPhysicsBody() || rb->GetPhysicsWorld() != m_World.get()) {
             m_World->RegisterRigidbody(*rb);
         }
     }
 }
 
 void PhysicsSceneBridge::UnregisterGameObject(GameObject& object) {
+    if (!m_World) return;
     if (auto* rb = object.GetComponent<Rigidbody>()) {
         if (rb->GetPhysicsWorld() == m_World.get()) {
             m_World->UnregisterRigidbody(*rb);
@@ -24,13 +27,29 @@ void PhysicsSceneBridge::UnregisterGameObject(GameObject& object) {
 }
 
 void PhysicsSceneBridge::RefreshGameObject(GameObject& object) {
+    if (!m_World) return;
     if (auto* rb = object.GetComponent<Rigidbody>()) {
         m_World->RefreshRigidbody(*rb);
     }
 }
 
 void PhysicsSceneBridge::FixedUpdate(float fixedDt) {
+    if (!m_World) return;
     m_World->SyncKinematicBodiesToPhysics();
     m_World->Step(fixedDt);
+
+    for (const auto& event : m_World->ConsumeTriggerEvents()) {
+        if (event.owner == nullptr) continue;
+        for (const auto& component : event.owner->GetComponents()) {
+            if (component && !component->IsBeingDestroyed() && component->isEnabled()) {
+                if (event.entered) {
+                    component->OnTriggerEnter(event.other);
+                } else {
+                    component->OnTriggerExit(event.other);
+                }
+            }
+        }
+    }
+
     m_World->SyncDynamicBodiesToTransforms();
 }