public Builder mergeTerrainInfo(org.bwapi.proxy.messages.TerrainMessages.StaticTerrainInfo value) {
        if (terrainInfoBuilder_ == null) {
          if (((bitField0_ & 0x08000000) == 0x08000000) &&
              terrainInfo_ != org.bwapi.proxy.messages.TerrainMessages.StaticTerrainInfo.getDefaultInstance()) {
            terrainInfo_ =
              org.bwapi.proxy.messages.TerrainMessages.StaticTerrainInfo.newBuilder(terrainInfo_).mergeFrom(value).buildPartial();
          } else {
            terrainInfo_ = value;
          }
          onChanged();
        } else {
          terrainInfoBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x08000000;
        return this;
      }