Document object lock and some trainer approach

src/battle_setup.c

@@ -1197,7 +1197,7 @@ void ConfigureAndSetUpOneTrainerBattle(u8 trainerObjEventId, const u8 *trainerSc
     gSelectedObjectEvent = trainerObjEventId;
     gSpecialVar_LastTalked = gObjectEvents[trainerObjEventId].localId;
     BattleSetup_ConfigureTrainerBattle(trainerScript + 1);
-    ScriptContext1_SetupScript(EventScript_271354);
+    ScriptContext1_SetupScript(EventScript_StartTrainerApproach);
     ScriptContext2_Enable();
 }
 
@@ -1210,7 +1210,7 @@ void ConfigureTwoTrainersBattle(u8 trainerObjEventId, const u8 *trainerScript)
 
 void SetUpTwoTrainersBattle(void)
 {
-    ScriptContext1_SetupScript(EventScript_271354);
+    ScriptContext1_SetupScript(EventScript_StartTrainerApproach);
     ScriptContext2_Enable();
 }
 
@@ -1220,10 +1220,12 @@ bool32 GetTrainerFlagFromScriptPointer(const u8 *data)
     return FlagGet(TRAINER_FLAGS_START + flag);
 }
 
-void SetUpTrainerMovement(void)
+// Set trainer's movement type so they stop and remain facing that direction
+// Note: Only for trainers who are spoken to directly
+//       For trainers who spot the player this is handled by PlayerFaceApproachingTrainer
+void SetTrainerFacingDirection(void)
 {
     struct ObjectEvent *objectEvent = &gObjectEvents[gSelectedObjectEvent];
-
     SetTrainerMovementType(objectEvent, GetTrainerFacingDirectionMovementType(objectEvent->facingDirection));
 }
 
@@ -1437,7 +1439,7 @@ void ShowTrainerCantBattleSpeech(void)
     ShowFieldMessage(GetTrainerCantBattleSpeech());
 }
 
-void SetUpTrainerEncounterMusic(void)
+void PlayTrainerEncounterMusic(void)
 {
     u16 trainerId;
     u16 music;