1 files changed, 169 insertions, 0 deletions
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index fa09959df..b754c2616 100644
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "field_map_obj.h"
 #include "sprite.h"
 
 extern const struct SpriteTemplate *const gFieldEffectObjectTemplatePointers[36];
@@ -7,6 +8,13 @@ extern void strange_npc_table_clear(void);
 extern void ClearPlayerAvatarInfo(void);
 
 void sub_805AAB0(void);
+u8 GetFieldObjectIdByLocalId(u8);
+u8 GetFieldObjectIdByLocalIdAndMapInternal(u8, u8, u8);
+u8 GetAvailableFieldObjectSlot(u16, u8, u8, u8 *);
+void FieldObjectHandleDynamicGraphicsId();
+
+extern const u8 gUnknown_0836DBBC[];
+extern const u8 gUnknown_0836DC09[];
 
 void npc_clear_ids_and_state(struct MapObject *mapObj)
 {
@@ -51,3 +59,164 @@ void sub_805AAB0(void)
     StartSpriteAffineAnim(&gSprites[spriteId], 1);
     gSprites[spriteId].invisible = 1;
 }
+
+int sub_805AB54(void)
+{
+    u8 i;
+    
+    for (i = 0; i < 16; i++)
+    {
+        if (!gMapObjects[i].active)
+            break;
+    }
+    return i;
+}
+
+u8 GetFieldObjectIdByLocalIdAndMap(u8 a, u8 b, u8 c)
+{
+    if (a <= 0xFE)
+        return GetFieldObjectIdByLocalIdAndMapInternal(a, b, c);
+    else
+        return GetFieldObjectIdByLocalId(a);
+}
+
+bool8 TryGetFieldObjectIdByLocalIdAndMap(u8 a, u8 b, u8 c, u8 *d)
+{
+    *d = GetFieldObjectIdByLocalIdAndMap(a, b, c);
+    if (*d == 16)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+u8 GetFieldObjectIdByXY(s16 x, s16 y)
+{
+    u8 i;
+    
+    for (i = 0; i < 16; i++)
+    {
+        if (gMapObjects[i].active && gMapObjects[i].coords2.x == x && gMapObjects[i].coords2.y == y)
+            break;
+    }
+    return i;
+}
+
+u8 GetFieldObjectIdByLocalIdAndMapInternal(u8 localId, u8 mapNum, u8 mapGroup)
+{
+    u8 i;
+    
+    for (i = 0; i < 16; i++)
+    {
+        if (gMapObjects[i].active && gMapObjects[i].localId == localId && gMapObjects[i].mapNum == mapNum && gMapObjects[i].mapGroup == mapGroup)
+            return i;
+    }
+    return 16;
+}
+
+u8 GetFieldObjectIdByLocalId(u8 localId)
+{
+    u8 i;
+    
+    for (i = 0; i < 16; i++)
+    {
+        if (gMapObjects[i].active && gMapObjects[i].localId == localId)
+            return i;
+    }
+    return 16;
+}
+
+u8 InitFieldObjectStateFromTemplate(struct MapObjectTemplate *template, u8 b, s8 c)
+{
+    struct MapObject2 *mapObj;  //TODO: resolve the mapobj_unk_19b weirdness
+    u8 var;
+    u16 r3;
+    u16 r2;
+    
+    if (GetAvailableFieldObjectSlot(template->localId, b, c, &var) != 0)
+        return 16;
+    //_0805ACCE
+    mapObj = (struct MapObject2 *)&gMapObjects[var];
+    npc_clear_ids_and_state((struct MapObject *)mapObj);
+    r3 = template->x + 7;
+    r2 = template->y + 7;
+    mapObj->active = TRUE;
+    mapObj->mapobj_bit_2 = TRUE;
+    mapObj->graphicsId = template->graphicsId;
+    mapObj->animPattern = template->movementType;
+    mapObj->localId = template->localId;
+    mapObj->mapNum = b;
+    mapObj->mapGroup = c;
+    mapObj->coords1.x = r3;
+    mapObj->coords1.y = r2;
+    mapObj->coords2.x = r3;
+    mapObj->coords2.y = r2;
+    mapObj->coords3.x = r3;
+    mapObj->coords3.y = r2;
+    mapObj->mapobj_unk_0B_0 = template->elevation;
+    mapObj->elevation = template->elevation;
+    mapObj->mapobj_unk_19 = template->unkA_0;
+    mapObj->mapobj_unk_19b = template->unkA_4;
+    mapObj->trainerType = template->unkC;
+    mapObj->trainerRange_berryTreeId = template->unkE;
+    mapObj->mapobj_unk_20 = gUnknown_0836DC09[template->movementType];
+    FieldObjectSetDirection((struct MapObject *)mapObj, mapObj->mapobj_unk_20);
+    FieldObjectHandleDynamicGraphicsId(mapObj);
+    //asm("":::"r5","r6");
+    if (gUnknown_0836DBBC[mapObj->animPattern] != 0)
+    {
+        if (mapObj->mapobj_unk_19 == 0)
+            mapObj->mapobj_unk_19++;
+        if (mapObj->mapobj_unk_19b == 0)
+            mapObj->mapobj_unk_19b++;
+    }
+    return var;
+}
+
+/*
+u8 InitFieldObjectStateFromTemplate(struct MapObjectTemplate *template, u8 b, s8 c)
+{
+    struct MapObject2 *mapObj;  //TODO: resolve the mapobj_unk_19b weirdness
+    u8 var;
+    u16 r3;
+    u16 r2;
+    
+    if (GetAvailableFieldObjectSlot(template->localId, b, c, &var) != 0)
+        return 16;
+    //_0805ACCE
+    mapObj = (struct MapObject2 *)&gMapObjects[var];
+    npc_clear_ids_and_state((struct MapObject *)mapObj);
+    r3 = template->x + 7;
+    r2 = template->y + 7;
+    mapObj->active = TRUE;
+    mapObj->mapobj_bit_2 = TRUE;
+    mapObj->graphicsId = template->graphicsId;
+    mapObj->animPattern = template->movementType;
+    mapObj->localId = template->localId;
+    mapObj->mapNum = b;
+    mapObj->mapGroup = c;
+    mapObj->coords1.x = r3;
+    mapObj->coords1.y = r2;
+    mapObj->coords2.x = r3;
+    mapObj->coords2.y = r2;
+    mapObj->coords3.x = r3;
+    mapObj->coords3.y = r2;
+    mapObj->mapobj_unk_0B_0 = template->elevation;
+    mapObj->elevation = template->elevation;
+    mapObj->mapobj_unk_19 = template->unkA_0;
+    mapObj->mapobj_unk_19b = template->unkA_4;
+    mapObj->trainerType = template->unkC;
+    mapObj->trainerRange_berryTreeId = template->unkE;
+    mapObj->mapobj_unk_20 = gUnknown_0836DC09[template->movementType];
+    FieldObjectSetDirection((struct MapObject *)mapObj, mapObj->mapobj_unk_20);
+    FieldObjectHandleDynamicGraphicsId(mapObj);
+    //asm("":::"r5","r6");
+    if (gUnknown_0836DBBC[mapObj->animPattern] != 0)
+    {
+        if (mapObj->mapobj_unk_19 == 0)
+            mapObj->mapobj_unk_19++;
+        if (mapObj->mapobj_unk_19b == 0)
+            mapObj->mapobj_unk_19b++;
+    }
+    return var;
+}
+*/