pokeblock merge conflicts

6 files changed, 732 insertions, 22 deletions

diff --git a/src/battle_bg.c b/src/battle_bg.c
index 24a88c4f5..82355273b 100644
--- a/src/battle_bg.c
+++ b/src/battle_bg.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "battle.h"
 #include "sprite.h"
-#include "constants\trainers.h"
+#include "constants/trainers.h"
 #include "graphics.h"
 #include "decompress.h"
 #include "bg.h"
diff --git a/src/battle_setup.c b/src/battle_setup.c
index 3d4f5afcc..be23a28c9 100644
--- a/src/battle_setup.c
+++ b/src/battle_setup.c
@@ -88,9 +88,6 @@ extern u32 GetGameStat(u8 statId);
 extern u32 gBattleTypeFlags;
 extern u8 gBattleOutcome;
 extern void (*gFieldCallback)(void);
-extern u8 gApproachingTrainerId;
-extern u8 gNoOfApproachingTrainers;
-extern u16 gUnknown_03006080;
 
 // this file's functions
 static void DoBattlePikeWildBattle(void);
@@ -113,7 +110,7 @@ static void HandleRematchVarsOnBattleEnd(void);
 static const u8 *GetIntroSpeechOfApproachingTrainer(void);
 static const u8 *GetTrainerCantBattleSpeech(void);
 
-// ewram data
+// ewram vars
 EWRAM_DATA static u16 sTrainerBattleMode = 0;
 EWRAM_DATA u16 gTrainerBattleOpponent_A = 0;
 EWRAM_DATA u16 gTrainerBattleOpponent_B = 0;
diff --git a/src/egg_hatch.c b/src/egg_hatch.c
index 7418fa72d..721ba4a4f 100644
--- a/src/egg_hatch.c
+++ b/src/egg_hatch.c
@@ -91,7 +91,7 @@ static void CreateRandomEggShardSprite(void);
 static void CreateEggShardSprite(u8 x, u8 y, s16 data1, s16 data2, s16 data3, u8 spriteAnimIndex);
 
 // IWRAM bss
-static IWRAM_DATA struct EggHatchData* sEggHatchData;
+static IWRAM_DATA struct EggHatchData *sEggHatchData;
 
 // rom data
 static const u16 sEggPalette[] = INCBIN_U16("graphics/pokemon/palettes/egg_palette.gbapal");
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index 6a99890a4..fc23a6e37 100755
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -1174,11 +1174,11 @@ void npc_by_local_id_and_map_set_field_1_bit_x20(u8 localId, u8 mapNum, u8 mapGr
     }
 }
 
-void FieldObjectGetLocalIdAndMap(struct MapObject *mapObject, u8 *localId, u8 *mapNum, u8 *mapGroup)
+void FieldObjectGetLocalIdAndMap(struct MapObject *mapObject, void *localId, void *mapNum, void *mapGroup)
 {
-    *localId = mapObject->localId;
-    *mapNum = mapObject->mapNum;
-    *mapGroup = mapObject->mapGroup;
+    *(u8*)(localId) = mapObject->localId;
+    *(u8*)(mapNum) = mapObject->mapNum;
+    *(u8*)(mapGroup) = mapObject->mapGroup;
 }
 
 void sub_808E75C(s16 x, s16 y)
@@ -3426,7 +3426,7 @@ void FieldObjectCB_TreeDisguise(struct Sprite *sprite)
     mapObject = &gMapObjects[sprite->data[0]];
     if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data[7]))
     {
-        FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
+        FieldObjectGetLocalIdAndMap(mapObject, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
         mapObject->mapobj_unk_1A = FieldEffectStart(FLDEFF_TREE_DISGUISE);
         mapObject->mapobj_unk_21 = 1;
         sprite->data[7] ++;
@@ -3447,7 +3447,7 @@ void FieldObjectCB_MountainDisguise(struct Sprite *sprite)
     mapObject = &gMapObjects[sprite->data[0]];
     if (mapObject->mapobj_unk_21 == 0 || (mapObject->mapobj_unk_21 == 1 && !sprite->data[7]))
     {
-        FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
+        FieldObjectGetLocalIdAndMap(mapObject, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
         mapObject->mapobj_unk_1A = FieldEffectStart(FLDEFF_MOUNTAIN_DISGUISE);
         mapObject->mapobj_unk_21 = 1;
         sprite->data[7] ++;
@@ -4694,7 +4694,7 @@ bool8 sub_80954CC(struct MapObject *mapObject, struct Sprite *sprite)
 
 bool8 do_exclamation_mark_bubble_1(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
+    FieldObjectGetLocalIdAndMap(mapObject, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_EXCLAMATION_MARK_ICON_1);
     sprite->data[2] = 1;
     return TRUE;
@@ -4702,7 +4702,7 @@ bool8 do_exclamation_mark_bubble_1(struct MapObject *mapObject, struct Sprite *s
 
 bool8 do_exclamation_mark_bubble_2(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
+    FieldObjectGetLocalIdAndMap(mapObject, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_EXCLAMATION_MARK_ICON_2);
     sprite->data[2] = 1;
     return TRUE;
@@ -4710,7 +4710,7 @@ bool8 do_exclamation_mark_bubble_2(struct MapObject *mapObject, struct Sprite *s
 
 bool8 do_heart_bubble(struct MapObject *mapObject, struct Sprite *sprite)
 {
-    FieldObjectGetLocalIdAndMap(mapObject, (u8 *)&gFieldEffectArguments[0], (u8 *)&gFieldEffectArguments[1], (u8 *)&gFieldEffectArguments[2]);
+    FieldObjectGetLocalIdAndMap(mapObject, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
     FieldEffectStart(FLDEFF_HEART_ICON);
     sprite->data[2] = 1;
     return TRUE;
diff --git a/src/scrcmd.c b/src/scrcmd.c
index 1b10501fc..412f8acd1 100644
--- a/src/scrcmd.c
+++ b/src/scrcmd.c
@@ -2332,7 +2332,7 @@ bool8 ScrCmd_mossdeepgym4(struct ScriptContext *ctx)
 
 bool8 ScrCmd_cmdD8(struct ScriptContext *ctx)
 {
-    gSelectedMapObject = sub_80B47BC();
+    gSelectedMapObject = GetCurrentApproachingTrainerMapObjectId();
     return FALSE;
 }
 
diff --git a/src/trainer_see.c b/src/trainer_see.c
index b30f27347..53bc5cbbb 100644
--- a/src/trainer_see.c
+++ b/src/trainer_see.c
@@ -1,15 +1,170 @@
 #include "global.h"
 #include "trainer_see.h"
 #include "battle_setup.h"
+#include "pokemon.h"
+#include "sprite.h"
+#include "field_effect.h"
+#include "field_map_obj.h"
+#include "field_player_avatar.h"
+#include "map_obj_8097404.h"
+#include "pokenav.h"
+#include "task.h"
+#include "util.h"
+#include "script.h"
+#include "event_data.h"
+#include "script_movement.h"
 
-extern u8 gApproachingTrainerId;
-extern u8 gNoOfApproachingTrainers;
-extern u8 gUnknown_030060AC;
-extern u16 gUnknown_03006080;
+extern bool8 InBattlePyramid(void);
+extern bool32 InTrainerHill(void);
+extern bool8 GetBattlePyramidTrainerFlag(u8 mapObjectId);
+extern bool8 GetTrainerHillTrainerFlag(u8 mapObjectId);
+extern void sub_809BE48(u16 npcId);
 
 // this file's functions
-u8 CheckIfTrainerWantsBattle(u8 mapObjectId);
+static u8 CheckTrainer(u8 mapObjectId);
+static u8 GetTrainerApproachDistance(struct MapObject *trainerObj);
+static u8 CheckPathBetweenTrainerAndPlayer(struct MapObject *trainerObj, u8 approachDistance, u8 direction);
+static void TrainerApproachPlayer(struct MapObject *trainerObj, u8 range);
+static void Task_RunTrainerSeeFuncList(u8 taskId);
+static void Task_DestroyTrainerApproachTask(u8 taskId);
+static void SetIconSpriteData(struct Sprite *sprite, u16 fldEffId, u8 spriteAnimNum);
 
+static u8 GetTrainerApproachDistanceSouth(struct MapObject *trainerObj, s16 range, s16 x, s16 y);
+static u8 GetTrainerApproachDistanceNorth(struct MapObject *trainerObj, s16 range, s16 x, s16 y);
+static u8 GetTrainerApproachDistanceWest(struct MapObject *trainerObj, s16 range, s16 x, s16 y);
+static u8 GetTrainerApproachDistanceEast(struct MapObject *trainerObj, s16 range, s16 x, s16 y);
+
+static bool8 sub_80B4178(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B417C(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B41C0(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B4200(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B425C(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B4318(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B435C(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B4390(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B43AC(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B43E0(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B4438(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+static bool8 sub_80B44AC(u8 taskId, struct Task *task, struct MapObject *trainerObj);
+
+static void SpriteCB_TrainerIcons(struct Sprite *sprite);
+
+// IWRAM common
+u16 gUnknown_03006080;
+u8 gUnknown_03006084[4];
+struct ApproachingTrainer gApproachingTrainers[2];
+u8 gNoOfApproachingTrainers;
+u8 gUnknown_030060AC;
+
+// EWRAM
+EWRAM_DATA u8 gApproachingTrainerId = 0;
+
+// const rom data
+static const u8 sEmotion_ExclamationMarkGfx[] = INCBIN_U8("graphics/misc/emotion_exclamation.4bpp");
+static const u8 sEmotion_QuestionMarkGfx[] = INCBIN_U8("graphics/misc/emotion_question.4bpp");
+static const u8 sEmotion_HeartGfx[] = INCBIN_U8("graphics/misc/emotion_heart.4bpp");
+
+static u8 (*const sDirectionalApproachDistanceFuncs[])(struct MapObject *trainerObj, s16 range, s16 x, s16 y) =
+{
+    GetTrainerApproachDistanceSouth,
+    GetTrainerApproachDistanceNorth,
+    GetTrainerApproachDistanceWest,
+    GetTrainerApproachDistanceEast,
+};
+
+static bool8 (*const sTrainerSeeFuncList[])(u8 taskId, struct Task *task, struct MapObject *trainerObj) =
+{
+    sub_80B4178,
+	sub_80B417C,
+	sub_80B41C0,
+	sub_80B4200,
+	sub_80B425C,
+	sub_80B4318,
+	sub_80B435C,
+	sub_80B4390,
+	sub_80B43AC,
+	sub_80B43E0,
+	sub_80B4438,
+	sub_80B44AC
+};
+
+static bool8 (*const sTrainerSeeFuncList2[])(u8 taskId, struct Task *task, struct MapObject *trainerObj) =
+{
+    sub_80B43AC,
+    sub_80B43E0,
+    sub_80B4438,
+    sub_80B44AC,
+};
+
+static const struct OamData sOamData_Icons =
+{
+    .y = 0,
+    .affineMode = 0,
+    .objMode = 0,
+    .mosaic = 0,
+    .bpp = 0,
+    .shape = 0,
+    .x = 0,
+    .matrixNum = 0,
+    .size = 1,
+    .tileNum = 0,
+    .priority = 1,
+    .paletteNum = 0,
+    .affineParam = 0,
+};
+
+static const struct SpriteFrameImage sSpriteImageTable_ExclamationQuestionMark[] =
+{
+    {sEmotion_ExclamationMarkGfx, 0x80},
+    {sEmotion_QuestionMarkGfx, 0x80}
+};
+
+static const struct SpriteFrameImage sSpriteImageTable_HeartIcon[] =
+{
+    {sEmotion_HeartGfx, 0x80}
+};
+
+static const union AnimCmd sSpriteAnim_Icons1[] =
+{
+    ANIMCMD_FRAME(0, 60),
+    ANIMCMD_END
+};
+
+static const union AnimCmd sSpriteAnim_Icons2[] =
+{
+    ANIMCMD_FRAME(1, 60),
+    ANIMCMD_END
+};
+
+static const union AnimCmd *const sSpriteAnimTable_Icons[] =
+{
+    sSpriteAnim_Icons1,
+    sSpriteAnim_Icons2
+};
+
+static const struct SpriteTemplate sSpriteTemplate_ExclamationQuestionMark =
+{
+    .tileTag = 0xffff,
+    .paletteTag = 0xffff,
+    .oam = &sOamData_Icons,
+    .anims = sSpriteAnimTable_Icons,
+    .images = sSpriteImageTable_ExclamationQuestionMark,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCB_TrainerIcons
+};
+
+static const struct SpriteTemplate sSpriteTemplate_HeartIcon =
+{
+    .tileTag = 0xffff,
+    .paletteTag = 0x1004,
+    .oam = &sOamData_Icons,
+    .anims = sSpriteAnimTable_Icons,
+    .images = sSpriteImageTable_HeartIcon,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCB_TrainerIcons
+};
+
+// code
 bool8 CheckForTrainersWantingBattle(void)
 {
     u8 i;
@@ -26,7 +181,7 @@ bool8 CheckForTrainersWantingBattle(void)
         if (gMapObjects[i].trainerType != 1 && gMapObjects[i].trainerType != 3)
             continue;
 
-        retVal = CheckIfTrainerWantsBattle(i);
+        retVal = CheckTrainer(i);
         if (retVal == 2)
             break; // two trainers have been found
 
@@ -66,3 +221,561 @@ bool8 CheckForTrainersWantingBattle(void)
         return FALSE;
     }
 }
+
+static u8 CheckTrainer(u8 mapObjectId)
+{
+    const u8 *scriptPtr;
+    u8 ret = 1;
+    u8 approachDistance;
+
+    if (InTrainerHill() == TRUE)
+        scriptPtr = sub_81D62AC();
+    else
+        scriptPtr = GetFieldObjectScriptPointerByFieldObjectId(mapObjectId);
+
+    if (InBattlePyramid())
+    {
+        if (GetBattlePyramidTrainerFlag(mapObjectId))
+            return 0;
+    }
+    else if (InTrainerHill() == TRUE)
+    {
+        if (GetTrainerHillTrainerFlag(mapObjectId))
+            return 0;
+    }
+    else
+    {
+        if (GetTrainerFlagFromScriptPointer(scriptPtr))
+            return 0;
+    }
+
+    approachDistance = GetTrainerApproachDistance(&gMapObjects[mapObjectId]);
+
+    if (approachDistance != 0)
+    {
+        if (scriptPtr[1] == TRAINER_BATTLE_DOUBLE
+            || scriptPtr[1] == TRAINER_BATTLE_REMATCH_DOUBLE
+            || scriptPtr[1] == TRAINER_BATTLE_CONTINUE_SCRIPT_DOUBLE)
+        {
+            if (GetMonsStateToDoubles_2() != 0)
+                return 0;
+
+            ret = 2;
+        }
+
+        gApproachingTrainers[gNoOfApproachingTrainers].mapObjectId = mapObjectId;
+        gApproachingTrainers[gNoOfApproachingTrainers].trainerScriptPtr = scriptPtr;
+        gApproachingTrainers[gNoOfApproachingTrainers].radius = approachDistance;
+        TrainerApproachPlayer(&gMapObjects[mapObjectId], approachDistance - 1);
+        gNoOfApproachingTrainers++;
+
+        return ret;
+    }
+
+    return 0;
+}
+
+static u8 GetTrainerApproachDistance(struct MapObject *trainerObj)
+{
+    s16 x, y;
+    u8 i;
+    u8 approachDistance;
+
+    PlayerGetDestCoords(&x, &y);
+    if (trainerObj->trainerType == 1)  // can only see in one direction
+    {
+        approachDistance = sDirectionalApproachDistanceFuncs[trainerObj->mapobj_unk_18 - 1](trainerObj, trainerObj->trainerRange_berryTreeId, x, y);
+        return CheckPathBetweenTrainerAndPlayer(trainerObj, approachDistance, trainerObj->mapobj_unk_18);
+    }
+    else  // can see in all directions
+    {
+        for (i = 0; i < 4; i++)
+        {
+            approachDistance = sDirectionalApproachDistanceFuncs[i](trainerObj, trainerObj->trainerRange_berryTreeId, x, y);
+            if (CheckPathBetweenTrainerAndPlayer(trainerObj, approachDistance, i + 1)) // directions are 1-4 instead of 0-3. south north west east
+                return approachDistance;
+        }
+    }
+
+    return 0;
+}
+
+// Returns how far south the player is from trainer. 0 if out of trainer's sight.
+static u8 GetTrainerApproachDistanceSouth(struct MapObject *trainerObj, s16 range, s16 x, s16 y)
+{
+    if (trainerObj->coords2.x == x
+     && y > trainerObj->coords2.y
+     && y <= trainerObj->coords2.y + range)
+        return (y - trainerObj->coords2.y);
+    else
+        return 0;
+}
+
+// Returns how far north the player is from trainer. 0 if out of trainer's sight.
+static u8 GetTrainerApproachDistanceNorth(struct MapObject *trainerObj, s16 range, s16 x, s16 y)
+{
+    if (trainerObj->coords2.x == x
+     && y < trainerObj->coords2.y
+     && y >= trainerObj->coords2.y - range)
+        return (trainerObj->coords2.y - y);
+    else
+        return 0;
+}
+
+// Returns how far west the player is from trainer. 0 if out of trainer's sight.
+static u8 GetTrainerApproachDistanceWest(struct MapObject *trainerObj, s16 range, s16 x, s16 y)
+{
+    if (trainerObj->coords2.y == y
+     && x < trainerObj->coords2.x
+     && x >= trainerObj->coords2.x - range)
+        return (trainerObj->coords2.x - x);
+    else
+        return 0;
+}
+
+// Returns how far east the player is from trainer. 0 if out of trainer's sight.
+static u8 GetTrainerApproachDistanceEast(struct MapObject *trainerObj, s16 range, s16 x, s16 y)
+{
+    if (trainerObj->coords2.y == y
+     && x > trainerObj->coords2.x
+     && x <= trainerObj->coords2.x + range)
+        return (x - trainerObj->coords2.x);
+    else
+        return 0;
+}
+
+#define COLLISION_MASK (~1)
+
+static u8 CheckPathBetweenTrainerAndPlayer(struct MapObject *trainerObj, u8 approachDistance, u8 direction)
+{
+    s16 x, y;
+    u8 unk19_temp;
+    u8 unk19b_temp;
+    u8 i;
+    u8 collision;
+
+    if (approachDistance == 0)
+        return 0;
+
+    x = trainerObj->coords2.x;
+    y = trainerObj->coords2.y;
+
+    MoveCoords(direction, &x, &y);
+    for (i = 0; i < approachDistance - 1; i++, MoveCoords(direction, &x, &y))
+    {
+        collision = sub_8092C8C(trainerObj, x, y, direction);
+        if (collision != 0 && (collision & COLLISION_MASK))
+            return 0;
+    }
+
+    // preserve mapobj_unk_19 before clearing.
+    unk19_temp = trainerObj->range.as_nybbles.x;
+    unk19b_temp = trainerObj->range.as_nybbles.y;
+    trainerObj->range.as_nybbles.x = 0;
+    trainerObj->range.as_nybbles.y = 0;
+
+    collision = npc_block_way(trainerObj, x, y, direction);
+
+    trainerObj->range.as_nybbles.x = unk19_temp;
+    trainerObj->range.as_nybbles.y = unk19b_temp;
+    if (collision == 4)
+        return approachDistance;
+
+    return 0;
+}
+
+#define tFuncId             data[0]
+#define tTrainerRange       data[3]
+#define tOutOfAshSpriteId   data[4]
+#define tTrainerMapObjectId data[7]
+
+static void TrainerApproachPlayer(struct MapObject *trainerObj, u8 range)
+{
+    struct Task *task;
+
+    gApproachingTrainers[gNoOfApproachingTrainers].taskId = CreateTask(Task_RunTrainerSeeFuncList, 0x50);
+    task = &gTasks[gApproachingTrainers[gNoOfApproachingTrainers].taskId];
+    task->tTrainerRange = range;
+    task->tTrainerMapObjectId = gApproachingTrainers[gNoOfApproachingTrainers].mapObjectId;
+}
+
+static void sub_80B40C8(TaskFunc followupFunc)
+{
+    u8 taskId;
+    TaskFunc taskFunc;
+
+    if (gApproachingTrainerId == 0)
+        taskId = gApproachingTrainers[0].taskId;
+    else
+        taskId = gApproachingTrainers[1].taskId;
+
+    taskFunc = Task_RunTrainerSeeFuncList;
+    SetTaskFuncWithFollowupFunc(taskId, taskFunc, followupFunc);
+    gTasks[taskId].tFuncId = 1;
+    taskFunc(taskId);
+}
+
+static void Task_RunTrainerSeeFuncList(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    struct MapObject *trainerObj = &gMapObjects[task->tTrainerMapObjectId];
+
+    if (!trainerObj->active)
+    {
+        SwitchTaskToFollowupFunc(taskId);
+    }
+    else
+    {
+        while (sTrainerSeeFuncList[task->tFuncId](taskId, task, trainerObj));
+    }
+}
+
+static bool8 sub_80B4178(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    return FALSE;
+}
+
+static bool8 sub_80B417C(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    u8 direction;
+
+    FieldObjectGetLocalIdAndMap(trainerObj, &gFieldEffectArguments[0], &gFieldEffectArguments[1], &gFieldEffectArguments[2]);
+    FieldEffectStart(FLDEFF_EXCLAMATION_MARK_ICON_1);
+    direction = GetFaceDirectionAnimId(trainerObj->mapobj_unk_18);
+    FieldObjectSetSpecialAnim(trainerObj, direction);
+    task->tFuncId++;
+    return TRUE;
+}
+
+static bool8 sub_80B41C0(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (FieldEffectActiveListContains(FLDEFF_EXCLAMATION_MARK_ICON_1))
+    {
+        return FALSE;
+    }
+    else
+    {
+        task->tFuncId++;
+        if (trainerObj->animPattern == 57 || trainerObj->animPattern == 58)
+            task->tFuncId = 6;
+        if (trainerObj->animPattern == 63)
+            task->tFuncId = 8;
+        return TRUE;
+    }
+}
+
+static bool8 sub_80B4200(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (!(FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(trainerObj)) || FieldObjectClearAnimIfSpecialAnimFinished(trainerObj))
+    {
+        if (task->tTrainerRange)
+        {
+            FieldObjectSetSpecialAnim(trainerObj, GetGoSpeed0AnimId(trainerObj->mapobj_unk_18));
+            task->tTrainerRange--;
+        }
+        else
+        {
+            FieldObjectSetSpecialAnim(trainerObj, 0x3E);
+            task->tFuncId++;
+        }
+    }
+    return FALSE;
+}
+
+static bool8 sub_80B425C(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    struct MapObject *playerObj;
+
+    if (FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(trainerObj) && !FieldObjectClearAnimIfSpecialAnimFinished(trainerObj))
+        return FALSE;
+
+    npc_set_running_behaviour_etc(trainerObj, npc_running_behaviour_by_direction(trainerObj->mapobj_unk_18));
+    sub_808F23C(trainerObj, npc_running_behaviour_by_direction(trainerObj->mapobj_unk_18));
+    sub_808F208(trainerObj);
+
+    playerObj = &gMapObjects[gPlayerAvatar.mapObjectId];
+    if (FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(playerObj) && !FieldObjectClearAnimIfSpecialAnimFinished(playerObj))
+        return FALSE;
+
+    sub_808BCE8();
+    FieldObjectSetSpecialAnim(&gMapObjects[gPlayerAvatar.mapObjectId], GetFaceDirectionAnimId(GetOppositeDirection(trainerObj->mapobj_unk_18)));
+    task->tFuncId++;
+    return FALSE;
+}
+
+static bool8 sub_80B4318(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    struct MapObject *playerObj = &gMapObjects[gPlayerAvatar.mapObjectId];
+
+    if (!FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(playerObj)
+     || FieldObjectClearAnimIfSpecialAnimFinished(playerObj))
+        SwitchTaskToFollowupFunc(taskId);
+    return FALSE;
+}
+
+static bool8 sub_80B435C(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (!FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(trainerObj)
+     || FieldObjectClearAnimIfSpecialAnimFinished(trainerObj))
+    {
+        FieldObjectSetSpecialAnim(trainerObj, 0x59);
+        task->tFuncId++;
+    }
+    return FALSE;
+}
+
+static bool8 sub_80B4390(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (FieldObjectClearAnimIfSpecialAnimFinished(trainerObj))
+        task->tFuncId = 3;
+
+    return FALSE;
+}
+
+static bool8 sub_80B43AC(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (!FieldObjectIsSpecialAnimOrDirectionSequenceAnimActive(trainerObj)
+     || FieldObjectClearAnimIfSpecialAnimFinished(trainerObj))
+    {
+        FieldObjectSetSpecialAnim(trainerObj, 0x3E);
+        task->tFuncId++;
+    }
+    return FALSE;
+}
+
+static bool8 sub_80B43E0(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (FieldObjectCheckIfSpecialAnimFinishedOrInactive(trainerObj))
+    {
+        gFieldEffectArguments[0] = trainerObj->coords2.x;
+        gFieldEffectArguments[1] = trainerObj->coords2.y;
+        gFieldEffectArguments[2] = gSprites[trainerObj->spriteId].subpriority - 1;
+        gFieldEffectArguments[3] = 2;
+        task->tOutOfAshSpriteId = FieldEffectStart(FLDEFF_POP_OUT_OF_ASH);
+        task->tFuncId++;
+    }
+    return FALSE;
+}
+
+static bool8 sub_80B4438(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    struct Sprite *sprite;
+
+    if (gSprites[task->tOutOfAshSpriteId].animCmdIndex == 2)
+    {
+        trainerObj->mapobj_bit_26 = 0;
+        trainerObj->mapobj_bit_2 = 1;
+
+        sprite = &gSprites[trainerObj->spriteId];
+        sprite->oam.priority = 2;
+        FieldObjectClearAnimIfSpecialAnimFinished(trainerObj);
+        FieldObjectSetSpecialAnim(trainerObj, sub_80934BC(trainerObj->mapobj_unk_18));
+        task->tFuncId++;
+    }
+
+    return FALSE;
+}
+
+static bool8 sub_80B44AC(u8 taskId, struct Task *task, struct MapObject *trainerObj)
+{
+    if (!FieldEffectActiveListContains(FLDEFF_POP_OUT_OF_ASH))
+        task->tFuncId = 3;
+
+    return FALSE;
+}
+
+#undef tFuncId
+#undef tTrainerRange
+#undef tOutOfAshSpriteId
+#undef tTrainerMapObjectId
+
+static void sub_80B44C8(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    struct MapObject *mapObj;
+
+    // another mapObj loaded into by loadword?
+    LoadWordFromTwoHalfwords(&task->data[1], (u32 *)&mapObj);
+    if (!task->data[7])
+    {
+        FieldObjectClearAnim(mapObj);
+        task->data[7]++;
+    }
+    sTrainerSeeFuncList2[task->data[0]](taskId, task, mapObj);
+    if (task->data[0] == 3 && !FieldEffectActiveListContains(FLDEFF_POP_OUT_OF_ASH))
+    {
+        npc_set_running_behaviour_etc(mapObj, npc_running_behaviour_by_direction(mapObj->mapobj_unk_18));
+        sub_808F23C(mapObj, npc_running_behaviour_by_direction(mapObj->mapobj_unk_18));
+        DestroyTask(taskId);
+    }
+    else
+    {
+        mapObj->mapobj_bit_7 = 0;
+    }
+}
+
+void sub_80B4578(struct MapObject *var)
+{
+    StoreWordInTwoHalfwords(&gTasks[CreateTask(sub_80B44C8, 0)].data[1], (u32)var);
+}
+
+void EndTrainerApproach(void)
+{
+    sub_80B40C8(Task_DestroyTrainerApproachTask);
+}
+
+static void Task_DestroyTrainerApproachTask(u8 taskId)
+{
+    DestroyTask(taskId);
+    EnableBothScriptContexts();
+}
+
+void sub_80B45D0(void)
+{
+    if (gNoOfApproachingTrainers == 2)
+    {
+        if (gApproachingTrainerId == 0)
+        {
+            gApproachingTrainerId++;
+            gSpecialVar_Result = 1;
+            UnfreezeMapObjects();
+            sub_80974D0(gApproachingTrainers[1].mapObjectId);
+        }
+        else
+        {
+            gApproachingTrainerId = 0;
+            gSpecialVar_Result = 0;
+        }
+    }
+    else
+    {
+        gSpecialVar_Result = 0;
+    }
+}
+
+#define sLocalId    data[0]
+#define sMapNum     data[1]
+#define sMapGroup   data[2]
+#define sData3      data[3]
+#define sData4      data[4]
+#define sFldEffId   data[7]
+
+u8 FldEff_ExclamationMarkIcon1(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&sSpriteTemplate_ExclamationQuestionMark, 0, 0, 0x53);
+
+    if (spriteId != MAX_SPRITES)
+        SetIconSpriteData(&gSprites[spriteId], FLDEFF_EXCLAMATION_MARK_ICON_1, 0);
+
+    return 0;
+}
+
+u8 FldEff_ExclamationMarkIcon2(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&sSpriteTemplate_ExclamationQuestionMark, 0, 0, 0x52);
+
+    if (spriteId != MAX_SPRITES)
+        SetIconSpriteData(&gSprites[spriteId], FLDEFF_EXCLAMATION_MARK_ICON_2, 1);
+
+    return 0;
+}
+
+u8 FldEff_HeartIcon(void)
+{
+    u8 spriteId = CreateSpriteAtEnd(&sSpriteTemplate_HeartIcon, 0, 0, 0x52);
+
+    if (spriteId != MAX_SPRITES)
+    {
+        struct Sprite *sprite = &gSprites[spriteId];
+
+        SetIconSpriteData(sprite, FLDEFF_HEART_ICON, 0);
+        sprite->oam.paletteNum = 2;
+    }
+
+    return 0;
+}
+
+static void SetIconSpriteData(struct Sprite *sprite, u16 fldEffId, u8 spriteAnimNum)
+{
+    sprite->oam.priority = 1;
+    sprite->coordOffsetEnabled = 1;
+
+    sprite->sLocalId = gFieldEffectArguments[0];
+    sprite->sMapNum = gFieldEffectArguments[1];
+    sprite->sMapGroup = gFieldEffectArguments[2];
+    sprite->sData3 = -5;
+    sprite->sFldEffId = fldEffId;
+
+    StartSpriteAnim(sprite, spriteAnimNum);
+}
+
+static void SpriteCB_TrainerIcons(struct Sprite *sprite)
+{
+    u8 mapObjId;
+
+    if (TryGetFieldObjectIdByLocalIdAndMap(sprite->sLocalId, sprite->sMapNum, sprite->sMapGroup, &mapObjId)
+     || sprite->animEnded)
+    {
+        FieldEffectStop(sprite, sprite->sFldEffId);
+    }
+    else
+    {
+        struct Sprite *mapObjSprite = &gSprites[gMapObjects[mapObjId].spriteId];
+        sprite->sData4 += sprite->sData3;
+        sprite->pos1.x = mapObjSprite->pos1.x;
+        sprite->pos1.y = mapObjSprite->pos1.y - 16;
+        sprite->pos2.x = mapObjSprite->pos2.x;
+        sprite->pos2.y = mapObjSprite->pos2.y + sprite->sData4;
+        if (sprite->sData4)
+            sprite->sData3++;
+        else
+            sprite->sData3 = 0;
+    }
+}
+
+#undef sLocalId
+#undef sMapNum
+#undef sMapGroup
+#undef sData3
+#undef sData4
+#undef sFldEffId
+
+u8 GetCurrentApproachingTrainerMapObjectId(void)
+{
+    if (gApproachingTrainerId == 0)
+        return gApproachingTrainers[0].mapObjectId;
+    else
+        return gApproachingTrainers[1].mapObjectId;
+}
+
+u8 GetChosenApproachingTrainerMapObjectId(u8 arrayId)
+{
+    if (arrayId >= ARRAY_COUNT(gApproachingTrainers))
+        return 0;
+    else if (arrayId == 0)
+        return gApproachingTrainers[0].mapObjectId;
+    else
+        return gApproachingTrainers[1].mapObjectId;
+}
+
+void sub_80B4808(void)
+{
+    struct MapObject *trainerObj;
+
+    if (gUnknown_030060AC == 1)
+    {
+        trainerObj = &gMapObjects[gApproachingTrainers[gUnknown_03006080].mapObjectId];
+        gUnknown_03006084[0] = GetFaceDirectionAnimId(GetOppositeDirection(trainerObj->mapobj_unk_18));
+        gUnknown_03006084[1] = 0xFE;
+        ScriptMovement_StartObjectMovementScript(0xFF, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup, gUnknown_03006084);
+    }
+    else
+    {
+        trainerObj = &gMapObjects[gPlayerAvatar.mapObjectId];
+        gUnknown_03006084[0] = GetFaceDirectionAnimId(trainerObj->mapobj_unk_18);
+        gUnknown_03006084[1] = 0xFE;
+        ScriptMovement_StartObjectMovementScript(0xFF, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup, gUnknown_03006084);
+    }
+
+    sub_809BE48(0xFF);
+}