rename EntityId to BuildingId

src/lib/core/BuildingId.h

@@ -4,6 +4,6 @@
 // Ships, stations, scrap, and the HQ proxy use entt::entity instead.
 // Ids are allocated centrally by the Simulation, strictly increasing, never
 // reused. 0 is reserved as the invalid id.
-using EntityId = long long;
+using BuildingId = long long;
 
-constexpr EntityId kInvalidEntityId = 0;
+constexpr BuildingId kInvalidBuildingId = 0;

src/lib/core/CMakeLists.txt

@@ -1,7 +1,6 @@
 SET(HDRS
     ${HDRS}
     ${CMAKE_CURRENT_SOURCE_DIR}/Tick.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/EntityId.h
     ${CMAKE_CURRENT_SOURCE_DIR}/Rotation.h
     ${CMAKE_CURRENT_SOURCE_DIR}/BuildingType.h
     ${CMAKE_CURRENT_SOURCE_DIR}/EntityAdmin.h

src/lib/core/EcsComponents.h

@@ -7,7 +7,6 @@
 #include <QSize>
 #include <QVector2D>
 
-#include "EntityId.h"
 #include "Tick.h"
 
 #include "entt/entity/entity.hpp"
@@ -104,3 +103,4 @@ struct DespawnAt
 
 struct HqProxy { char unused = 0; };
 
+