Implement shootout procedure

Author: g3force

internal/app/statemachine/change_gameevent.go

@@ -342,10 +342,16 @@ func (s *StateMachine) nextCommandForEvent(newState *state.State, gameEvent *sta
 		state.GameEvent_ATTACKER_DOUBLE_TOUCHED_BALL,
 		state.GameEvent_PENALTY_KICK_FAILED,
 		state.GameEvent_POSSIBLE_GOAL:
+		if *newState.Stage == state.Referee_PENALTY_SHOOTOUT {
+			return state.NewCommand(state.Command_PENALTY, gameEvent.ByTeam().Opposite())
+		}
 		return state.NewCommand(state.Command_DIRECT, gameEvent.ByTeam().Opposite())
 	case state.GameEvent_DEFENDER_IN_DEFENSE_AREA:
 		return state.NewCommand(state.Command_PENALTY, gameEvent.ByTeam().Opposite())
 	case state.GameEvent_GOAL:
+		if *newState.Stage == state.Referee_PENALTY_SHOOTOUT {
+			return state.NewCommand(state.Command_PENALTY, gameEvent.ByTeam().Opposite())
+		}
 		return state.NewCommand(state.Command_KICKOFF, gameEvent.ByTeam().Opposite())
 	case state.GameEvent_NO_PROGRESS_IN_GAME,
 		state.GameEvent_TOO_MANY_ROBOTS:

internal/app/statemachine/change_stage.go

@@ -65,6 +65,8 @@ func (s *StateMachine) getNextCommandForStage(newState *state.State, stage state
 		return state.NewCommand(state.Command_KICKOFF, *newState.FirstKickoffTeam)
 	case state.Referee_NORMAL_SECOND_HALF_PRE, state.Referee_EXTRA_SECOND_HALF_PRE:
 		return state.NewCommand(state.Command_KICKOFF, newState.FirstKickoffTeam.Opposite())
+	case state.Referee_PENALTY_SHOOTOUT:
+		return state.NewCommand(state.Command_PENALTY, *newState.FirstKickoffTeam)
 	default:
 		return nil
 	}