Refactoring camera

src/Engine/System/CameraUpdater.cpp

@@ -3,8 +3,12 @@
 using namespace Seele;
 using namespace Seele::System;
 
-CameraUpdater::CameraUpdater(PScene scene) : ComponentSystem(scene) {}
+CameraUpdater::CameraUpdater(PScene scene) : ComponentSystem<Component::Camera, Component::Transform>(scene) {}
 
 CameraUpdater::~CameraUpdater() {}
 
-void CameraUpdater::update(Component::Camera& camera) { camera.buildViewMatrix(); }
+void CameraUpdater::update(Component::Camera& camera, Component::Transform& transform) {
+    Vector eyePos = transform.getPosition();
+    Vector lookAt = eyePos + transform.getForward();
+    camera.viewMatrix = glm::lookAt(eyePos, lookAt, Vector(0, 1, 0));
+}

src/Engine/System/CameraUpdater.h

@@ -4,12 +4,12 @@
 
 namespace Seele {
 namespace System {
-class CameraUpdater : public ComponentSystem<Component::Camera> {
+class CameraUpdater : public ComponentSystem<Component::Camera, Component::Transform> {
   public:
     CameraUpdater(PScene scene);
     virtual ~CameraUpdater();
 
-    virtual void update(Component::Camera& camera);
+    virtual void update(Component::Camera& camera, Component::Transform& transform);
 
   private:
 };