Added UniformScale component which keeps an entity's scale at a uniform value relative to the screen.

src/Engine/Core/UniformScaleSystem.cpp

@@ -0,0 +1,24 @@
+#include "Core/UniformScaleSystem.h"
+
+UniformScaleSystem::UniformScaleSystem(EventBroker* eventBroker) 
+    : System(eventBroker)
+    , PureSystem("UniformScale")
+{
+    EVENT_SUBSCRIBE_MEMBER(m_ESetCamera, &UniformScaleSystem::OnSetCamera);
+}
+
+void UniformScaleSystem::UpdateComponent(World* world, EntityWrapper& entity, ComponentWrapper& cUniformScale, double dt)
+{
+    if (!m_Camera.Valid()) {
+        return;
+    }
+
+    float distance = glm::length((glm::vec3)entity["Transform"]["Position"] - (glm::vec3&)m_Camera["Transform"]["Position"]);
+    entity["Transform"]["Scale"] = (glm::vec3&)cUniformScale["Scale"] * distance;
+}
+
+bool UniformScaleSystem::OnSetCamera(const Events::SetCamera& e)
+{
+    m_Camera = e.CameraEntity;
+    return false;
+}