Fixed compile error with ELOG enabled.

CMakeLists.txt

@@ -35,7 +35,7 @@ list(APPEND LINK_LIBS
 )
 
 add_executable(sample_coach ${SOURCE_DIR}/main_coach.cpp ${SOURCE_DIR}/sample_coach.cpp ${SOURCES})
-add_executable(sample_player ${SOURCE_DIR}/HFO.cpp ${SOURCE_DIR}/main_player.cpp ${SOURCE_DIR}/sample_player.cpp ${SOURCES})
+add_executable(sample_player ${SOURCE_DIR}/HFO.cpp ${SOURCE_DIR}/main_player.cpp ${SOURCE_DIR}/sample_player.cpp ${SOURCE_DIR}/agent.cpp ${SOURCES})
 add_executable(sample_trainer ${SOURCE_DIR}/main_trainer.cpp ${SOURCE_DIR}/sample_trainer.cpp ${SOURCES})
 add_executable(agent ${SOURCE_DIR}/main_agent.cpp ${SOURCE_DIR}/agent.cpp ${SOURCES})
 add_library(hfo-lib SHARED ${SOURCE_DIR}/HFO.hpp ${SOURCE_DIR}/HFO.cpp)

src/sample_player.cpp

@@ -266,10 +266,10 @@ SamplePlayer::actionImpl()
     if (feature_extractor == NULL) {
       if (getHFOConfig()) {
         feature_extractor = Agent::getFeatureExtractor(
-            LOW_LEVEL_FEATURE_SET, num_teammates, num_opponents, playing_offense);
+            hfo::LOW_LEVEL_FEATURE_SET, num_teammates, num_opponents, playing_offense);
       }
     } else {
-      hfo_status_t game_status = Agent::getGameStatus(
+      hfo::status_t game_status = Agent::getGameStatus(
           audioSensor(), lastTrainerMessageTime);
       elog.addText(Logger::WORLD, "GameStatus %d", game_status);
       elog.flush();