private com.google.protobuf.SingleFieldBuilder<
          org.bwapi.proxy.messages.BasicTypes.TilePosition, org.bwapi.proxy.messages.BasicTypes.TilePosition.Builder, org.bwapi.proxy.messages.BasicTypes.TilePositionOrBuilder> 
          getInitialTilePositionFieldBuilder() {
        if (initialTilePositionBuilder_ == null) {
          initialTilePositionBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bwapi.proxy.messages.BasicTypes.TilePosition, org.bwapi.proxy.messages.BasicTypes.TilePosition.Builder, org.bwapi.proxy.messages.BasicTypes.TilePositionOrBuilder>(
                  initialTilePosition_,
                  getParentForChildren(),
                  isClean());
          initialTilePosition_ = null;
        }
        return initialTilePositionBuilder_;
      }