Fixed shallow water bug with followers

Before this fix, if the follower shrunk into its pokeball while standing on shallow water, the rippling effect would still be happening. This fixes that.

src/event_object_movement.c

@@ -10467,6 +10467,14 @@ u8 MovementAction_FollowingPokemon_Grow_Step1(struct ObjectEvent *objectEvent, s
         }
 
         FreeSpriteOamMatrix(sprite);
+        
+        // Make sure water ripples at the feet of the follower if they are appearing on top of shallow water.
+        if (MetatileBehavior_IsShallowFlowingWater(MapGridGetMetatileBehaviorAt(objectEvent->currentCoords.x, objectEvent->currentCoords.y)))
+        {
+            objectEvent->inShallowFlowingWater = TRUE;
+            StartFieldEffectForObjectEvent(FLDEFF_FEET_IN_FLOWING_WATER, objectEvent);
+        }
+        
         sprite->data[2]++;
     }
 

src/field_effect_helpers.c

@@ -820,7 +820,8 @@ static void UpdateFeetInFlowingWaterFieldEffect(struct Sprite *sprite)
     struct Sprite *linkedSprite;
     struct ObjectEvent *objectEvent;
 
-    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inShallowFlowingWater)
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inShallowFlowingWater
+        || (gObjectEvents[objectEventId].invisible && objectEventId == gSaveBlock2Ptr->follower.objId && gSaveBlock2Ptr->follower.inProgress))
     {
         FieldEffectStop(sprite, FLDEFF_FEET_IN_FLOWING_WATER);
     }