From c291fa8e7fc8f823544e483eccb9b87fd7f99206 Mon Sep 17 00:00:00 2001
From: GriffinR <griffin.g.richards@gmail.com>
Date: Wed, 3 Nov 2021 23:02:06 -0400
Subject: [PATCH] Propagate BG_COORD constants

---
 gflib/bg.h                                 |  1 +
 src/battle_dome.c                          | 16 +++++------
 src/battle_factory_screen.c                | 28 +++++++++----------
 src/battle_records.c                       | 16 +++++------
 src/battle_transition_frontier.c           |  6 ++--
 src/berry_blender.c                        |  8 +++---
 src/berry_crush.c                          | 16 +++++------
 src/berry_fix_program.c                    |  8 +++---
 src/contest_painting.c                     |  4 +--
 src/dodrio_berry_picking.c                 | 32 +++++++++++-----------
 src/easy_chat.c                            | 22 +++++++--------
 src/egg_hatch.c                            |  8 +++---
 src/frontier_pass.c                        | 16 +++++------
 src/hall_of_fame.c                         | 12 ++++----
 src/item_menu.c                            |  2 +-
 src/main_menu.c                            | 24 ++++++++--------
 src/match_call.c                           | 10 +++----
 src/menu.c                                 | 20 +++++++-------
 src/menu_helpers.c                         | 16 +++++------
 src/mirage_tower.c                         |  4 +--
 src/mystery_gift_menu.c                    | 16 +++++------
 src/mystery_gift_view.c                    | 14 +++++-----
 src/naming_screen.c                        | 16 +++++------
 src/option_menu.c                          | 16 +++++------
 src/overworld.c                            | 16 +++++------
 src/party_menu.c                           |  4 +--
 src/pokedex_area_region_map.c              |  6 ++--
 src/pokedex_area_screen.c                  |  2 +-
 src/pokedex_cry_screen.c                   |  2 +-
 src/pokemon_jump.c                         |  8 +++---
 src/pokemon_storage_system.c               | 16 +++++------
 src/pokemon_summary_screen.c               | 16 +++++------
 src/pokenav_conditions_2.c                 | 12 ++++----
 src/pokenav_conditions_3.c                 |  4 +--
 src/pokenav_main_menu.c                    |  8 +++---
 src/pokenav_match_call_2.c                 |  8 +++---
 src/pokenav_match_call_ui.c                | 16 +++++------
 src/pokenav_menu_handler_2.c               | 14 +++++-----
 src/pokenav_region_map.c                   | 14 +++++-----
 src/pokenav_ribbons_1.c                    |  4 +--
 src/pokenav_ribbons_2.c                    |  8 +++---
 src/rayquaza_scene.c                       | 28 +++++++++----------
 src/starter_choose.c                       | 16 +++++------
 src/trade.c                                |  4 +--
 src/trainer_card.c                         | 16 +++++------
 src/union_room_chat.c                      | 20 +++++++-------
 src/use_pokeblock.c                        | 16 +++++------
 src/wallclock.c                            | 16 +++++------
 src/wireless_communication_status_screen.c |  8 +++---
 49 files changed, 307 insertions(+), 306 deletions(-)

diff --git a/gflib/bg.h b/gflib/bg.h
index b5d18d6d03..3a0bf3bf90 100644
--- a/gflib/bg.h
+++ b/gflib/bg.h
@@ -21,6 +21,7 @@ enum {
 	BG_TYPE_NONE = 0xFFFF
 };
 
+// Modes for ChangeBgX / ChangeBgY
 enum {
 	BG_COORD_SET,
 	BG_COORD_ADD,
diff --git a/src/battle_dome.c b/src/battle_dome.c
index 0075e84d6a..08f1fa9343 100644
--- a/src/battle_dome.c
+++ b/src/battle_dome.c
@@ -5281,10 +5281,10 @@ static void Task_ShowTourneyTree(u8 taskId)
         gBattle_BG0_Y = 0;
         gBattle_BG1_X = 0;
         gBattle_BG1_Y = 0;
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0xB00, 0);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0xB00, BG_COORD_SET);
         gTasks[taskId].tState++;
         break;
     case 1:
@@ -5597,8 +5597,8 @@ static void CB2_TourneyTree(void)
 
 static void VblankCb_TourneyInfoCard(void)
 {
-    ChangeBgX(3, 0x80, 1);
-    ChangeBgY(3, 0x80, 2);
+    ChangeBgX(3, 0x80, BG_COORD_ADD);
+    ChangeBgY(3, 0x80, BG_COORD_SUB);
     SetGpuReg(REG_OFFSET_BG0HOFS, gBattle_BG0_X);
     SetGpuReg(REG_OFFSET_BG0VOFS, gBattle_BG0_Y);
     SetGpuReg(REG_OFFSET_BG1HOFS, gBattle_BG1_X);
@@ -5693,8 +5693,8 @@ static void VblankCb_TourneyTree(void)
     SetGpuReg(REG_OFFSET_BG0VOFS, gBattle_BG0_Y);
     SetGpuReg(REG_OFFSET_BG1HOFS, gBattle_BG1_X);
     SetGpuReg(REG_OFFSET_BG1VOFS, gBattle_BG1_Y);
-    ChangeBgY(2, 0x80, 2);
-    ChangeBgY(3, 0x80, 1);
+    ChangeBgY(2, 0x80, BG_COORD_SUB);
+    ChangeBgY(3, 0x80, BG_COORD_ADD);
     LoadOam();
     ProcessSpriteCopyRequests();
     TransferPlttBuffer();
diff --git a/src/battle_factory_screen.c b/src/battle_factory_screen.c
index 98caada1d9..247b8712fe 100644
--- a/src/battle_factory_screen.c
+++ b/src/battle_factory_screen.c
@@ -1147,12 +1147,12 @@ static void CB2_InitSelectScreen(void)
         sSelectMonPicBgTilesetBuffer = AllocZeroed(0x440);
         sSelectMenuTilemapBuffer = Alloc(BG_SCREEN_SIZE);
         sSelectMonPicBgTilemapBuffer = AllocZeroed(BG_SCREEN_SIZE);
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_BLDCNT, 0);
         SetGpuReg(REG_OFFSET_BLDALPHA, 0);
         SetGpuReg(REG_OFFSET_BLDY, 0);
@@ -3280,14 +3280,14 @@ static void CB2_InitSwapScreen(void)
         sSwapMonPicBgTilesetBuffer = AllocZeroed(0x440);
         sSwapMenuTilemapBuffer = Alloc(BG_SCREEN_SIZE);
         sSwapMonPicBgTilemapBuffer = AllocZeroed(BG_SCREEN_SIZE);
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_BLDY, 0);
         SetGpuReg(REG_OFFSET_MOSAIC, 0);
         SetGpuReg(REG_OFFSET_WIN0H, 0);
diff --git a/src/battle_records.c b/src/battle_records.c
index 850feef59e..f576d5912d 100644
--- a/src/battle_records.c
+++ b/src/battle_records.c
@@ -425,14 +425,14 @@ static void ClearTasksAndGraphicalStructs(void)
 
 static void ResetBgCoordinates(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 }
 
 static void SetDispcntReg(void)
diff --git a/src/battle_transition_frontier.c b/src/battle_transition_frontier.c
index e1cb03d8df..a1a39abdab 100644
--- a/src/battle_transition_frontier.c
+++ b/src/battle_transition_frontier.c
@@ -378,9 +378,9 @@ static bool8 Circles_Init(struct Task *task)
         LoadLogoGfx();
         SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG0 | BLDCNT_EFFECT_BLEND | BLDCNT_TGT2_ALL);
         SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(0, 16));
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgY(0, 0x500, 2);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0x500, BG_COORD_SUB);
 
         task->tTimer = 0;
         task->tState++;
diff --git a/src/berry_blender.c b/src/berry_blender.c
index 4e7168fc1a..7d22eae774 100644
--- a/src/berry_blender.c
+++ b/src/berry_blender.c
@@ -1013,10 +1013,10 @@ static void DrawBlenderBg(void)
     ShowBg(0);
     ShowBg(1);
     SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
 }
 
 static void InitBerryBlenderWindows(void)
diff --git a/src/berry_crush.c b/src/berry_crush.c
index 10f7987e05..6f432a3f98 100755
--- a/src/berry_crush.c
+++ b/src/berry_crush.c
@@ -1202,12 +1202,12 @@ static s32 ShowGameDisplay(void)
         SetBgTilemapBuffer(1, game->gfx.bgBuffers[0]);
         SetBgTilemapBuffer(2, game->gfx.bgBuffers[2]);
         SetBgTilemapBuffer(3, game->gfx.bgBuffers[3]);
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_BLDCNT, 0);
         SetGpuReg(REG_OFFSET_BLDALPHA, 0);
         break;
@@ -1249,8 +1249,8 @@ static s32 ShowGameDisplay(void)
         CreateWirelessStatusIndicatorSprite(0,  0);
         CreateGameSprites(game);
         SetGpuReg(REG_OFFSET_BG1VOFS, -gSpriteCoordOffsetY);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         break;
     case 9:
         gPaletteFade.bufferTransferDisabled = FALSE;
diff --git a/src/berry_fix_program.c b/src/berry_fix_program.c
index e2f7651795..e8c4bc7e68 100644
--- a/src/berry_fix_program.c
+++ b/src/berry_fix_program.c
@@ -290,10 +290,10 @@ static void BerryFix_GpuSet(void)
     ResetBgsAndClearDma3BusyFlags(0);
 
     InitBgsFromTemplates(0, sBerryFixBgTemplates, ARRAY_COUNT(sBerryFixBgTemplates));
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
     InitWindows(sBerryFixWindowTemplates);
     DeactivateAllTextPrinters();
 
diff --git a/src/contest_painting.c b/src/contest_painting.c
index 84b160eb82..e71cf391f8 100644
--- a/src/contest_painting.c
+++ b/src/contest_painting.c
@@ -267,8 +267,8 @@ static void InitContestPaintingWindow(void)
 {
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sBgTemplates, ARRAY_COUNT(sBgTemplates));
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
     SetBgTilemapBuffer(1, AllocZeroed(BG_SCREEN_SIZE));
     sWindowId = AddWindow(&sWindowTemplate);
     DeactivateAllTextPrinters();
diff --git a/src/dodrio_berry_picking.c b/src/dodrio_berry_picking.c
index 8c09afeb3c..e680b56d39 100644
--- a/src/dodrio_berry_picking.c
+++ b/src/dodrio_berry_picking.c
@@ -1352,14 +1352,14 @@ static void ResetGame(void)
         }
         break;
     case 2:
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         sGame->state++;
         break;
     case 3:
@@ -5172,14 +5172,14 @@ static void InitBgs(void)
     SetGpuReg(REG_OFFSET_DISPCNT, 0);
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sBgTemplates, ARRAY_COUNT(sBgTemplates));
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     InitStandardTextBoxWindows();
     InitTextBoxGfxAndPrinters();
     SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
diff --git a/src/easy_chat.c b/src/easy_chat.c
index c78e14ecf3..3257a122db 100644
--- a/src/easy_chat.c
+++ b/src/easy_chat.c
@@ -3900,14 +3900,14 @@ static bool8 InitEasyChatScreenControl_(void)
 
 static void InitEasyChatBgs(void)
 {
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
     SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_MODE_0 | DISPCNT_OBJ_1D_MAP | DISPCNT_OBJ_ON | DISPCNT_WIN0_ON);
 }
 
@@ -4550,7 +4550,7 @@ static void BufferLowerWindowFrame(int left, int top, int width, int height)
 
 static void ResetLowerWindowScroll(void)
 {
-    ChangeBgY(2, 0x800, 0);
+    ChangeBgY(2, 0x800, BG_COORD_SET);
     sScreenControl->scrollOffset = 0;
 }
 
@@ -4572,7 +4572,7 @@ static void InitLowerWindowScroll(s16 scrollChange, u8 speed)
     }
     else
     {
-        ChangeBgY(2, bgY, 0);
+        ChangeBgY(2, bgY, BG_COORD_SET);
     }
 }
 
@@ -4587,7 +4587,7 @@ static bool8 UpdateLowerWindowScroll(void)
     }
     else
     {
-        ChangeBgY(2, sScreenControl->scrollSpeed, 1);
+        ChangeBgY(2, sScreenControl->scrollSpeed, BG_COORD_ADD);
         return TRUE;
     }
 }
diff --git a/src/egg_hatch.c b/src/egg_hatch.c
index 4c9456f2e6..283ec753af 100644
--- a/src/egg_hatch.c
+++ b/src/egg_hatch.c
@@ -495,10 +495,10 @@ static void CB2_EggHatch_0(void)
         ResetBgsAndClearDma3BusyFlags(0);
         InitBgsFromTemplates(0, sBgTemplates_EggHatch, ARRAY_COUNT(sBgTemplates_EggHatch));
 
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
 
         SetBgAttribute(1, BG_ATTR_PRIORITY, 2);
         SetBgTilemapBuffer(1, Alloc(0x1000));
diff --git a/src/frontier_pass.c b/src/frontier_pass.c
index 9dfd5e9354..8ce1e14dc4 100644
--- a/src/frontier_pass.c
+++ b/src/frontier_pass.c
@@ -561,14 +561,14 @@ static void ResetGpuRegsAndBgs(void)
     SetGpuReg(REG_OFFSET_BG2CNT, 0);
     SetGpuReg(REG_OFFSET_BG1CNT, 0);
     SetGpuReg(REG_OFFSET_BG0CNT, 0);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     SetGpuReg(REG_OFFSET_BLDCNT, 0);
     SetGpuReg(REG_OFFSET_BLDY, 0);
     SetGpuReg(REG_OFFSET_BLDALPHA, 0);
diff --git a/src/hall_of_fame.c b/src/hall_of_fame.c
index ecc8b18ae4..84f7d8fe67 100644
--- a/src/hall_of_fame.c
+++ b/src/hall_of_fame.c
@@ -1295,12 +1295,12 @@ static void InitHofBgs(void)
     InitBgsFromTemplates(0, sHof_BgTemplates, ARRAY_COUNT(sHof_BgTemplates));
     SetBgTilemapBuffer(1, sHofGfxPtr->tilemap1);
     SetBgTilemapBuffer(3, sHofGfxPtr->tilemap2);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 }
 
 static bool8 LoadHofBgs(void)
diff --git a/src/item_menu.c b/src/item_menu.c
index 0c4b674525..037567daa7 100755
--- a/src/item_menu.c
+++ b/src/item_menu.c
@@ -2039,7 +2039,7 @@ bool8 UseRegisteredKeyItemOnField(void)
     if (InUnionRoom() == TRUE || InBattlePyramid() || InBattlePike() || InMultiPartnerRoom() == TRUE)
         return FALSE;
     HideMapNamePopUpWindow();
-    ChangeBgY_ScreenOff(0, 0, 0);
+    ChangeBgY_ScreenOff(0, 0, BG_COORD_SET);
     if (gSaveBlock1Ptr->registeredItem != ITEM_NONE)
     {
         if (CheckBagHasItem(gSaveBlock1Ptr->registeredItem, 1) == TRUE)
diff --git a/src/main_menu.c b/src/main_menu.c
index 748575ce34..601e66cb9d 100644
--- a/src/main_menu.c
+++ b/src/main_menu.c
@@ -583,10 +583,10 @@ static u32 InitMainMenu(bool8 returningFromOptionsMenu)
         BeginNormalPaletteFade(PALETTES_ALL, 0, 0x10, 0, RGB_WHITEALPHA); // fade to white
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sMainMenuBgTemplates, ARRAY_COUNT(sMainMenuBgTemplates));
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
     InitWindows(sWindowTemplates_MainMenu);
     DeactivateAllTextPrinters();
     LoadMainMenuWindowFrameTiles(0, MAIN_MENU_BORDER_TILE);
@@ -861,8 +861,8 @@ static void Task_DisplayMainMenu(u8 taskId)
                 gTasks[tScrollArrowTaskId].func = Task_ScrollIndicatorArrowPairOnMainMenu;
                 if (sCurrItemAndOptionMenuCheck == 4)
                 {
-                    ChangeBgY(0, 0x2000, 1);
-                    ChangeBgY(1, 0x2000, 1);
+                    ChangeBgY(0, 0x2000, BG_COORD_ADD);
+                    ChangeBgY(1, 0x2000, BG_COORD_ADD);
                     tIsScrolled = TRUE;
                     gTasks[tScrollArrowTaskId].tArrowTaskIsScrolled = TRUE;
                 }
@@ -901,8 +901,8 @@ static bool8 HandleMainMenuInput(u8 taskId)
     {
         if (tMenuType == HAS_MYSTERY_EVENTS && tIsScrolled == TRUE && tCurrItem == 1)
         {
-            ChangeBgY(0, 0x2000, 2);
-            ChangeBgY(1, 0x2000, 2);
+            ChangeBgY(0, 0x2000, BG_COORD_SUB);
+            ChangeBgY(1, 0x2000, BG_COORD_SUB);
             gTasks[tScrollArrowTaskId].tArrowTaskIsScrolled = tIsScrolled = FALSE;
         }
         tCurrItem--;
@@ -913,8 +913,8 @@ static bool8 HandleMainMenuInput(u8 taskId)
     {
         if (tMenuType == HAS_MYSTERY_EVENTS && tCurrItem == 3 && tIsScrolled == FALSE)
         {
-            ChangeBgY(0, 0x2000, 1);
-            ChangeBgY(1, 0x2000, 1);
+            ChangeBgY(0, 0x2000, BG_COORD_ADD);
+            ChangeBgY(1, 0x2000, BG_COORD_ADD);
             gTasks[tScrollArrowTaskId].tArrowTaskIsScrolled = tIsScrolled = TRUE;
         }
         tCurrItem++;
@@ -1048,8 +1048,8 @@ static void Task_HandleMainMenuAPressed(u8 taskId)
                 }
                 break;
         }
-        ChangeBgY(0, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         switch (action)
         {
             case ACTION_NEW_GAME:
diff --git a/src/match_call.c b/src/match_call.c
index b292ede31c..9e4659ee60 100644
--- a/src/match_call.c
+++ b/src/match_call.c
@@ -1263,7 +1263,7 @@ static bool32 MatchCall_LoadGfx(u8 taskId)
     FillWindowPixelBuffer(tWindowId, PIXEL_FILL(8));
     LoadPalette(sMatchCallWindow_Pal, 0xE0, sizeof(sMatchCallWindow_Pal));
     LoadPalette(sPokenavIcon_Pal, 0xF0, sizeof(sPokenavIcon_Pal));
-    ChangeBgY(0, -0x2000, 0);
+    ChangeBgY(0, -0x2000, BG_COORD_SET);
     return TRUE;
 }
 
@@ -1297,9 +1297,9 @@ static bool32 MatchCall_ReadyIntro(u8 taskId)
 
 static bool32 MatchCall_SlideWindowIn(u8 taskId)
 {
-    if (ChangeBgY(0, 0x600, 1) >= 0)
+    if (ChangeBgY(0, 0x600, BG_COORD_ADD) >= 0)
     {
-        ChangeBgY(0, 0, 0);
+        ChangeBgY(0, 0, BG_COORD_SET);
         return TRUE;
     }
 
@@ -1340,7 +1340,7 @@ static bool32 MatchCall_PrintMessage(u8 taskId)
 static bool32 MatchCall_SlideWindowOut(u8 taskId)
 {
     s16 *data = gTasks[taskId].data;
-    if (ChangeBgY(0, 0x600, 2) <= -0x2000)
+    if (ChangeBgY(0, 0x600, BG_COORD_SUB) <= -0x2000)
     {
         FillBgTilemapBufferRect_Palette0(0, 0, 0, 14, 30, 6);
         DestroyTask(tIconTaskId);
@@ -1357,7 +1357,7 @@ static bool32 MatchCall_EndCall(u8 taskId)
     u8 playerObjectId;
     if (!IsDma3ManagerBusyWithBgCopy() && !IsSEPlaying())
     {
-        ChangeBgY(0, 0, 0);
+        ChangeBgY(0, 0, BG_COORD_SET);
         if (!sMatchCallState.triggeredFromScript)
         {
             LoadMessageBoxAndBorderGfx();
diff --git a/src/menu.c b/src/menu.c
index 0e7c0c6e46..ddbc826869 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -153,8 +153,8 @@ void FreeAllOverworldWindowBuffers(void)
 
 void InitTextBoxGfxAndPrinters(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
     DeactivateAllTextPrinters();
     LoadMessageBoxAndBorderGfx();
 }
@@ -1922,14 +1922,14 @@ void AddValToTilemapBuffer(void *ptr, int delta, int width, int height, bool32 i
 
 void ResetBgPositions(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 }
 
 void sub_8199DF0(u32 bg, u8 a1, int a2, int a3)
diff --git a/src/menu_helpers.c b/src/menu_helpers.c
index 3317555908..7670c69251 100644
--- a/src/menu_helpers.c
+++ b/src/menu_helpers.c
@@ -106,14 +106,14 @@ void ResetVramOamAndBgCntRegs(void)
 
 void ResetAllBgsCoordinates(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 }
 
 void SetVBlankHBlankCallbacksToNull(void)
diff --git a/src/mirage_tower.c b/src/mirage_tower.c
index 7fc883ca18..9473b0f82e 100644
--- a/src/mirage_tower.c
+++ b/src/mirage_tower.c
@@ -536,8 +536,8 @@ static void InitMirageTowerShake(u8 taskId)
     case 1:
         sMirageTowerGfxBuffer = (u8 *)AllocZeroed(MIRAGE_TOWER_GFX_LENGTH);
         sMirageTowerTilemapBuffer = (u8 *)AllocZeroed(BG_SCREEN_SIZE);
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
         gTasks[taskId].tState++;
         break;
     case 2:
diff --git a/src/mystery_gift_menu.c b/src/mystery_gift_menu.c
index 4a314b076a..429922e58f 100644
--- a/src/mystery_gift_menu.c
+++ b/src/mystery_gift_menu.c
@@ -387,14 +387,14 @@ static bool32 HandleMysteryGiftOrEReaderSetup(s32 isEReader)
         ResetBgsAndClearDma3BusyFlags(0);
 
         InitBgsFromTemplates(0, sBGTemplates, ARRAY_COUNT(sBGTemplates));
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
 
         SetBgTilemapBuffer(3, Alloc(BG_SCREEN_SIZE));
         SetBgTilemapBuffer(2, Alloc(BG_SCREEN_SIZE));
diff --git a/src/mystery_gift_view.c b/src/mystery_gift_view.c
index cf3a019f53..3047a219e8 100644
--- a/src/mystery_gift_view.c
+++ b/src/mystery_gift_view.c
@@ -678,10 +678,10 @@ s32 WonderNews_Enter(void)
     case 1:
         if (UpdatePaletteFade())
             return 0;
-        ChangeBgY(0, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(0, DISPLAY_WIDTH));
         SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(26, 152));
         SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ);
@@ -753,7 +753,7 @@ s32 WonderNews_Exit(bool32 useCancel)
     case 1:
         if (UpdatePaletteFade())
             return 0;
-        ChangeBgY(2, 0, 0);
+        ChangeBgY(2, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_WIN0H, 0);
         SetGpuReg(REG_OFFSET_WIN0V, 0);
         SetGpuReg(REG_OFFSET_WININ, 0);
@@ -777,8 +777,8 @@ s32 WonderNews_Exit(bool32 useCancel)
         RemoveWindow(sWonderNewsData->windowIds[NEWS_WIN_TITLE]);
         break;
     case 4:
-        ChangeBgY(2, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         if (sWonderNewsData->arrowTaskId != TASK_NONE)
         {
             RemoveScrollIndicatorArrowPair(sWonderNewsData->arrowTaskId);
diff --git a/src/naming_screen.c b/src/naming_screen.c
index cd48242d07..dcd60259b7 100644
--- a/src/naming_screen.c
+++ b/src/naming_screen.c
@@ -516,14 +516,14 @@ static void NamingScreen_InitBGs(void)
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sBgTemplates, ARRAY_COUNT(sBgTemplates));
 
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 
     InitStandardTextBoxWindows();
     InitTextBoxGfxAndPrinters();
diff --git a/src/option_menu.c b/src/option_menu.c
index f985e2c52a..e66bddd7f2 100644
--- a/src/option_menu.c
+++ b/src/option_menu.c
@@ -173,14 +173,14 @@ void CB2_InitOptionMenu(void)
         SetGpuReg(REG_OFFSET_DISPCNT, 0);
         ResetBgsAndClearDma3BusyFlags(0);
         InitBgsFromTemplates(0, sOptionMenuBgTemplates, ARRAY_COUNT(sOptionMenuBgTemplates));
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         InitWindows(sOptionMenuWinTemplates);
         DeactivateAllTextPrinters();
         SetGpuReg(REG_OFFSET_WIN0H, 0);
diff --git a/src/overworld.c b/src/overworld.c
index a8d9a4a833..776d30c754 100644
--- a/src/overworld.c
+++ b/src/overworld.c
@@ -2101,14 +2101,14 @@ static void InitOverworldGraphicsRegisters(void)
     ScheduleBgCopyTilemapToVram(1);
     ScheduleBgCopyTilemapToVram(2);
     ScheduleBgCopyTilemapToVram(3);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_WIN0_ON | DISPCNT_WIN1_ON
                                 | DISPCNT_OBJ_1D_MAP | DISPCNT_HBLANK_INTERVAL);
     ShowBg(0);
diff --git a/src/party_menu.c b/src/party_menu.c
index 30a8696086..202b57a529 100755
--- a/src/party_menu.c
+++ b/src/party_menu.c
@@ -6056,7 +6056,7 @@ static void Task_InitMultiPartnerPartySlideIn(u8 taskId)
     // The first slide step also sets the sprites offscreen
     gTasks[taskId].tXPos = 256;
     SlideMultiPartyMenuBoxSpritesOneStep(taskId);
-    ChangeBgX(2, 0x10000, 0);
+    ChangeBgX(2, 0x10000, BG_COORD_SET);
     gTasks[taskId].func = Task_MultiPartnerPartySlideIn;
 }
 
@@ -6112,7 +6112,7 @@ static void SlideMultiPartyMenuBoxSpritesOneStep(u8 taskId)
             MoveMultiPartyMenuBoxSprite(sPartyMenuBoxes[i].statusSpriteId, tXPos - 8);
         }
     }
-    ChangeBgX(2, 0x800, 1);
+    ChangeBgX(2, 0x800, BG_COORD_ADD);
 }
 
 #undef tXpos
diff --git a/src/pokedex_area_region_map.c b/src/pokedex_area_region_map.c
index fce550bde0..2ec2c5c8d7 100644
--- a/src/pokedex_area_region_map.c
+++ b/src/pokedex_area_region_map.c
@@ -38,8 +38,8 @@ void LoadPokedexAreaMapGfx(const struct PokedexAreaMapTemplate *template)
         AddValToTilemapBuffer(tilemap, template->offset, 64, 64, TRUE); // template->offset is always 0, so this does nothing.
     }
 
-    ChangeBgX(template->bg, 0, 0);
-    ChangeBgY(template->bg, 0, 0);
+    ChangeBgX(template->bg, 0, BG_COORD_SET);
+    ChangeBgY(template->bg, 0, BG_COORD_SET);
     SetBgAttribute(template->bg, BG_ATTR_PALETTEMODE, 1);
     CpuCopy32(sPokedexAreaMap_Pal, &gPlttBufferUnfaded[0x70], 0x60);
     *sPokedexAreaMapBgNum = template->bg;
@@ -65,5 +65,5 @@ void FreePokedexAreaMapBgNum(void)
 
 void PokedexAreaMapChangeBgY(u32 a0)
 {
-    ChangeBgY(*sPokedexAreaMapBgNum, a0 * 0x100, 0);
+    ChangeBgY(*sPokedexAreaMapBgNum, a0 * 0x100, BG_COORD_SET);
 }
diff --git a/src/pokedex_area_screen.c b/src/pokedex_area_screen.c
index 1b6e6a388a..e2973dcab3 100755
--- a/src/pokedex_area_screen.c
+++ b/src/pokedex_area_screen.c
@@ -319,7 +319,7 @@ static bool8 DrawAreaGlow(void)
         }
         return TRUE;
     case 4:
-        ChangeBgY(2, -0x800, 0);
+        ChangeBgY(2, -0x800, BG_COORD_SET);
         break;
     default:
         return FALSE;
diff --git a/src/pokedex_cry_screen.c b/src/pokedex_cry_screen.c
index a01c06daab..4c9bfe15cb 100644
--- a/src/pokedex_cry_screen.c
+++ b/src/pokedex_cry_screen.c
@@ -443,7 +443,7 @@ static void ShiftWaveformOver(u8 windowId, s16 offset, bool8 rsVertical)
     if (!rsVertical)
     {
         u8 bg = GetWindowAttribute(windowId, WINDOW_BG);
-        ChangeBgX(bg, offset << 8, 0);
+        ChangeBgX(bg, offset << 8, BG_COORD_SET);
     }
 }
 
diff --git a/src/pokemon_jump.c b/src/pokemon_jump.c
index a6b4b6f424..c86682273a 100755
--- a/src/pokemon_jump.c
+++ b/src/pokemon_jump.c
@@ -3732,7 +3732,7 @@ static void SetMonSpriteY(u32 id, s16 y)
 static void UpdateVineSwing(int vineState)
 {
     UpdateVineAnim(sPokemonJumpGfx, vineState);
-    ChangeBgY(BG_VENUSAUR, (sVenusaurStates[vineState] * 5) << 13, 0);
+    ChangeBgY(BG_VENUSAUR, (sVenusaurStates[vineState] * 5) << 13, BG_COORD_SET);
 }
 
 static int DoSameJumpTimeBonus(u8 flags)
@@ -3896,8 +3896,8 @@ static void DrawPlayerNameWindows(void)
 static void ShowBonus(u8 bonusId)
 {
     sPokemonJumpGfx->bonusTimer = 0;
-    ChangeBgX(BG_BONUSES, (bonusId / 2) * 256 * 256, 0);
-    ChangeBgY(BG_BONUSES, (((bonusId % 2) * 256) - 40) * 256, 0);
+    ChangeBgX(BG_BONUSES, (bonusId / 2) * 256 * 256, BG_COORD_SET);
+    ChangeBgY(BG_BONUSES, (((bonusId % 2) * 256) - 40) * 256, BG_COORD_SET);
     ShowBg(BG_BONUSES);
     CreateTask(Task_UpdateBonus, 4);
 }
@@ -3910,7 +3910,7 @@ static bool32 UpdateBonus(void)
     }
     else
     {
-        ChangeBgY(BG_BONUSES, 128, 1);
+        ChangeBgY(BG_BONUSES, 128, BG_COORD_ADD);
         if (++sPokemonJumpGfx->bonusTimer >= 32)
             HideBg(BG_BONUSES);
         return TRUE;
diff --git a/src/pokemon_storage_system.c b/src/pokemon_storage_system.c
index 01133251b7..f18dc68d13 100644
--- a/src/pokemon_storage_system.c
+++ b/src/pokemon_storage_system.c
@@ -3827,8 +3827,8 @@ static void SetScrollingBackground(void)
 
 static void ScrollBackground(void)
 {
-    ChangeBgX(3, 128, 1);
-    ChangeBgY(3, 128, 2);
+    ChangeBgX(3, 128, BG_COORD_ADD);
+    ChangeBgY(3, 128, BG_COORD_SUB);
 }
 
 static void LoadPokeStorageMenuGfx(void)
@@ -8184,8 +8184,8 @@ static bool8 MultiMove_Start(void)
         GetCursorBoxColumnAndRow(&sMultiMove->fromColumn, &sMultiMove->fromRow);
         sMultiMove->toColumn = sMultiMove->fromColumn;
         sMultiMove->toRow = sMultiMove->fromRow;
-        ChangeBgX(0, -1024, 0);
-        ChangeBgY(0, -1024, 0);
+        ChangeBgX(0, -1024, BG_COORD_SET);
+        ChangeBgY(0, -1024, BG_COORD_SET);
         FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 0x20, 0x20);
         FillWindowPixelBuffer8Bit(sStorage->multiMoveWindowId, PIXEL_FILL(0));
         MultiMove_SetIconToBg(sMultiMove->fromColumn, sMultiMove->fromRow);
@@ -8499,8 +8499,8 @@ static u8 MultiMove_UpdateMove(void)
 {
     if (sMultiMove->bgMoveSteps != 0)
     {
-        ChangeBgX(0, sMultiMove->bgX, 1);
-        ChangeBgY(0, sMultiMove->bgY, 1);
+        ChangeBgX(0, sMultiMove->bgX, BG_COORD_ADD);
+        ChangeBgY(0, sMultiMove->bgY, BG_COORD_ADD);
         sMultiMove->bgMoveSteps--;
     }
 
@@ -8605,8 +8605,8 @@ static void MultiMove_SetPlacedMonData(void)
 
 static void MultiMove_ResetBg(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
     SetBgAttribute(0, BG_ATTR_PALETTEMODE, 0);
     ClearGpuRegBits(REG_OFFSET_BG0CNT, BGCNT_256COLOR);
     FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 32, 32);
diff --git a/src/pokemon_summary_screen.c b/src/pokemon_summary_screen.c
index c83ce727f6..6567cc4caf 100644
--- a/src/pokemon_summary_screen.c
+++ b/src/pokemon_summary_screen.c
@@ -1462,7 +1462,7 @@ static void SetDefaultTilemaps(void)
         TilemapFiveMovesDisplay(sMonSummaryScreen->bgTilemapBuffers[PSS_PAGE_CONTEST_MOVES][0], 1, FALSE);
         SetBgTilemapBuffer(1, sMonSummaryScreen->bgTilemapBuffers[PSS_PAGE_CONTEST_MOVES][0]);
         SetBgTilemapBuffer(2, sMonSummaryScreen->bgTilemapBuffers[PSS_PAGE_BATTLE_MOVES][0]);
-        ChangeBgX(2, 0x10000, 1);
+        ChangeBgX(2, 0x10000, BG_COORD_ADD);
         ClearWindowTilemap(PSS_LABEL_WINDOW_PORTRAIT_SPECIES);
         ClearWindowTilemap(PSS_LABEL_WINDOW_POKEMON_SKILLS_STATUS);
     }
@@ -1778,12 +1778,12 @@ static void PssScrollRight(u8 taskId) // Scroll right
             SetBgAttribute(1, BG_ATTR_PRIORITY, 2);
             ScheduleBgCopyTilemapToVram(2);
         }
-        ChangeBgX(data[1], 0, 0);
+        ChangeBgX(data[1], 0, BG_COORD_SET);
         SetBgTilemapBuffer(data[1], sMonSummaryScreen->bgTilemapBuffers[sMonSummaryScreen->currPageIndex][0]);
         ShowBg(1);
         ShowBg(2);
     }
-    ChangeBgX(data[1], 0x2000, 1);
+    ChangeBgX(data[1], 0x2000, BG_COORD_ADD);
     data[0] += 32;
     if (data[0] > 0xFF)
         gTasks[taskId].func = PssScrollRightEnd;
@@ -1811,9 +1811,9 @@ static void PssScrollLeft(u8 taskId) // Scroll left
             data[1] = 2;
         else
             data[1] = 1;
-        ChangeBgX(data[1], 0x10000, 0);
+        ChangeBgX(data[1], 0x10000, BG_COORD_SET);
     }
-    ChangeBgX(data[1], 0x2000, 2);
+    ChangeBgX(data[1], 0x2000, BG_COORD_SUB);
     data[0] += 32;
     if (data[0] > 0xFF)
         gTasks[taskId].func = PssScrollLeftEnd;
@@ -1837,7 +1837,7 @@ static void PssScrollLeftEnd(u8 taskId) // display left
     if (sMonSummaryScreen->currPageIndex > 1)
     {
         SetBgTilemapBuffer(data[1], sMonSummaryScreen->bgTilemapBuffers[sMonSummaryScreen->currPageIndex - 1][0]);
-        ChangeBgX(data[1], 0x10000, 0);
+        ChangeBgX(data[1], 0x10000, BG_COORD_SET);
     }
     ShowBg(1);
     ShowBg(2);
@@ -2681,9 +2681,9 @@ static void DrawContestMoveHearts(u16 move)
 static void LimitEggSummaryPageDisplay(void) // If the pokemon is an egg, limit the number of pages displayed to 1
 {
     if (sMonSummaryScreen->summary.isEgg)
-        ChangeBgX(3, 0x10000, 0);
+        ChangeBgX(3, 0x10000, BG_COORD_SET);
     else
-        ChangeBgX(3, 0, 0);
+        ChangeBgX(3, 0, BG_COORD_SET);
 }
 
 static void ResetWindows(void)
diff --git a/src/pokenav_conditions_2.c b/src/pokenav_conditions_2.c
index 4862fdc6f6..9fc7d33a15 100644
--- a/src/pokenav_conditions_2.c
+++ b/src/pokenav_conditions_2.c
@@ -199,12 +199,12 @@ u32 LoopedTask_OpenPartyConditionGraph(s32 state)
         return LT_INC_AND_PAUSE;
     case 1:
         InitBgTemplates(sPartyConditionBgTemplates, ARRAY_COUNT(sPartyConditionBgTemplates));
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON | DISPCNT_WIN1_ON | DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP | DISPCNT_BG0_ON | DISPCNT_BG3_ON);
         SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG2 | BLDCNT_EFFECT_BLEND | BLDCNT_TGT2_BG3);
         SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(11, 4));
diff --git a/src/pokenav_conditions_3.c b/src/pokenav_conditions_3.c
index 6ce819c04e..1172774d79 100644
--- a/src/pokenav_conditions_3.c
+++ b/src/pokenav_conditions_3.c
@@ -448,8 +448,8 @@ static u32 LoopedTask_OpenConditionSearchResults(s32 state)
     case 4:
         if (FreeTempTileDataBuffersIfPossible())
             return LT_PAUSE;
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         ShowBg(1);
         ShowBg(2);
         HideBg(3);
diff --git a/src/pokenav_main_menu.c b/src/pokenav_main_menu.c
index 5936ef9d21..714c8221a3 100644
--- a/src/pokenav_main_menu.c
+++ b/src/pokenav_main_menu.c
@@ -421,9 +421,9 @@ static u32 LoopedTask_SlideMenuHeaderUp(s32 a0)
     case 0:
         return LT_INC_AND_PAUSE;
     case 2:
-        if (ChangeBgY(0, 384, 1) >= 0x2000u)
+        if (ChangeBgY(0, 384, BG_COORD_ADD) >= 0x2000u)
         {
-            ChangeBgY(0, 0x2000, 0);
+            ChangeBgY(0, 0x2000, BG_COORD_SET);
             return LT_FINISH;
         }
 
@@ -433,9 +433,9 @@ static u32 LoopedTask_SlideMenuHeaderUp(s32 a0)
 
 static u32 LoopedTask_SlideMenuHeaderDown(s32 a0)
 {
-    if (ChangeBgY(0, 384, 2) <= 0)
+    if (ChangeBgY(0, 384, BG_COORD_SUB) <= 0)
     {
-        ChangeBgY(0, 0, 0);
+        ChangeBgY(0, 0, BG_COORD_SET);
         return LT_FINISH;
     }
     return LT_PAUSE;
diff --git a/src/pokenav_match_call_2.c b/src/pokenav_match_call_2.c
index 5af60a001d..3bfacfede4 100755
--- a/src/pokenav_match_call_2.c
+++ b/src/pokenav_match_call_2.c
@@ -322,8 +322,8 @@ static u32 LoopedTask_OpenMatchCall(s32 taskState)
     {
     case 0:
         InitBgTemplates(sMatchCallBgTemplates, ARRAY_COUNT(sMatchCallBgTemplates));
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
         DecompressAndCopyTileDataToVram(2, sMatchCallUI_Gfx, 0, 0, 0);
         SetBgTilemapBuffer(2, state->unk1024);
         CopyToBgTilemapBuffer(2, sMatchCallUI_Tilemap, 0, 0);
@@ -367,8 +367,8 @@ static u32 LoopedTask_OpenMatchCall(s32 taskState)
         PrintMatchCallLocation(state, 0);
         return LT_INC_AND_PAUSE;
     case 6:
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         ShowBg(2);
         ShowBg(3);
         ShowBg(1);
diff --git a/src/pokenav_match_call_ui.c b/src/pokenav_match_call_ui.c
index 9e0ae89f18..5f95f24935 100644
--- a/src/pokenav_match_call_ui.c
+++ b/src/pokenav_match_call_ui.c
@@ -174,9 +174,9 @@ void sub_81C82E4(struct PokenavSub17 *matchCall)
     sub_8199DF0(matchCall->list.listWindow.bg, PIXEL_FILL(4), matchCall->list.listWindow.unk6 + 1, 1);
     SetBgTilemapBuffer(matchCall->list.listWindow.bg, matchCall->tilemapBuffer);
     FillBgTilemapBufferRect_Palette0(matchCall->list.listWindow.bg, tileNum, 0, 0, 32, 32);
-    ChangeBgY(matchCall->list.listWindow.bg, 0, 0);
-    ChangeBgX(matchCall->list.listWindow.bg, 0, 0);
-    ChangeBgY(matchCall->list.listWindow.bg, matchCall->list.listWindow.unk3 << 11, 2);
+    ChangeBgY(matchCall->list.listWindow.bg, 0, BG_COORD_SET);
+    ChangeBgX(matchCall->list.listWindow.bg, 0, BG_COORD_SET);
+    ChangeBgY(matchCall->list.listWindow.bg, matchCall->list.listWindow.unk3 << 11, BG_COORD_SUB);
     CopyBgTilemapBufferToVram(matchCall->list.listWindow.bg);
 }
 
@@ -296,9 +296,9 @@ void sub_81C8568(s32 a0, struct PokenavSub17Substruct *list)
     list->unk20 = GetBgY(list->listWindow.bg);
     list->unk24 = list->unk20 + (a0 << 12);
     if (a0 > 0)
-        list->unk30 = 1;
+        list->unk30 = BG_COORD_ADD;
     else
-        list->unk30 = 2;
+        list->unk30 = BG_COORD_SUB;
     list->unk2C = a0;
     list->loopedTaskId = CreateLoopedTask(LoopedTask_sub_81C85A0, 6);
 }
@@ -320,12 +320,12 @@ u32 LoopedTask_sub_81C85A0(s32 state)
         flag = FALSE;
         y = GetBgY(subPtr->listWindow.bg);
         v1 = ChangeBgY(subPtr->listWindow.bg, 0x1000, subPtr->unk30);
-        if (subPtr->unk30 == 2)
+        if (subPtr->unk30 == BG_COORD_SUB)
         {
             if ((y > subPtr->unk24 || y <= subPtr->unk20) && v1 <= subPtr->unk24)
                 flag = TRUE;
         }
-        else
+        else // BG_COORD_ADD
         {
             if ((y < subPtr->unk24 || y >= subPtr->unk20) && v1 >= subPtr->unk24)
                 flag = TRUE;
@@ -334,7 +334,7 @@ u32 LoopedTask_sub_81C85A0(s32 state)
         if (flag)
         {
             subPtr->listWindow.unkA = (subPtr->listWindow.unkA + subPtr->unk2C) & 0xF;
-            ChangeBgY(subPtr->listWindow.bg, subPtr->unk24, 0);
+            ChangeBgY(subPtr->listWindow.bg, subPtr->unk24, BG_COORD_SET);
             return LT_FINISH;
         }
         return LT_PAUSE;
diff --git a/src/pokenav_menu_handler_2.c b/src/pokenav_menu_handler_2.c
index 10b6703da3..bcfe94cb7a 100644
--- a/src/pokenav_menu_handler_2.c
+++ b/src/pokenav_menu_handler_2.c
@@ -415,12 +415,12 @@ static u32 LoopedTask_OpenMenu(s32 state)
         CopyToBgTilemapBuffer(1, gPokenavMessageBox_Tilemap, 0, 0);
         CopyBgTilemapBufferToVram(1);
         CopyPaletteIntoBufferUnfaded(gPokenavMessageBox_Pal, 0x10, 0x20);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 0, BG_COORD_SET);
         return LT_INC_AND_PAUSE;
     case 1:
         if (FreeTempTileDataBuffersIfPossible())
@@ -1168,7 +1168,7 @@ static void DestroyMovingDotsBgTask(void)
 
 static void Task_MoveBgDots(u8 taskId)
 {
-    ChangeBgX(3, 0x80, 1);
+    ChangeBgX(3, 0x80, BG_COORD_ADD);
 }
 
 static void CreateBgDotPurplePalTask(void)
diff --git a/src/pokenav_region_map.c b/src/pokenav_region_map.c
index 78c60a09c0..c117dce3bd 100755
--- a/src/pokenav_region_map.c
+++ b/src/pokenav_region_map.c
@@ -515,11 +515,11 @@ static void LoadPokenavRegionMapGfx(struct Pokenav5Struct_2 *state)
     CopyPaletteIntoBufferUnfaded(sMapSecInfoWindow_Pal, 0x10, 0x20);
     CopyPaletteIntoBufferUnfaded(gRegionMapCityZoomTiles_Pal, 0x30, 0x20);
     if (!IsRegionMapZoomed())
-        ChangeBgY(1, -0x6000, 0);
+        ChangeBgY(1, -0x6000, BG_COORD_SET);
     else
-        ChangeBgY(1, 0, 0);
+        ChangeBgY(1, 0, BG_COORD_SET);
 
-    ChangeBgX(1, 0, 0);
+    ChangeBgX(1, 0, BG_COORD_SET);
 }
 
 static bool32 TryFreeTempTileDataBuffers(void)
@@ -587,9 +587,9 @@ static void Task_ChangeBgYForZoom(u8 taskId)
 {
     if (gTasks[taskId].tZoomIn)
     {
-        if (ChangeBgY(1, 0x480, 1) >= 0)
+        if (ChangeBgY(1, 0x480, BG_COORD_ADD) >= 0)
         {
-            ChangeBgY(1, 0, 0);
+            ChangeBgY(1, 0, BG_COORD_SET);
             DestroyTask(taskId);
         }
 
@@ -597,9 +597,9 @@ static void Task_ChangeBgYForZoom(u8 taskId)
     }
     else
     {
-        if (ChangeBgY(1, 0x480, 2) <= -0x6000)
+        if (ChangeBgY(1, 0x480, BG_COORD_SUB) <= -0x6000)
         {
-            ChangeBgY(1, -0x6000, 0);
+            ChangeBgY(1, -0x6000, BG_COORD_SET);
             DestroyTask(taskId);
         }
 
diff --git a/src/pokenav_ribbons_1.c b/src/pokenav_ribbons_1.c
index 464e0b55cb..862128967c 100644
--- a/src/pokenav_ribbons_1.c
+++ b/src/pokenav_ribbons_1.c
@@ -439,8 +439,8 @@ static u32 LoopedTask_OpenRibbonsMonList(s32 state)
             return LT_PAUSE;
         if (!UpdateMonListBgs())
             return LT_PAUSE;
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         ShowBg(1);
         return LT_INC_AND_PAUSE;
     case 2:
diff --git a/src/pokenav_ribbons_2.c b/src/pokenav_ribbons_2.c
index bf1c156e58..361ec950d9 100644
--- a/src/pokenav_ribbons_2.c
+++ b/src/pokenav_ribbons_2.c
@@ -631,10 +631,10 @@ static u32 LoopedTask_OpenRibbonsSummaryMenu(s32 state)
         if (!IsDma3ManagerBusyWithBgCopy())
         {
             CreateBigRibbonSprite(structPtr);
-            ChangeBgX(1, 0, 0);
-            ChangeBgY(1, 0, 0);
-            ChangeBgX(2, 0, 0);
-            ChangeBgY(2, 0, 0);
+            ChangeBgX(1, 0, BG_COORD_SET);
+            ChangeBgY(1, 0, BG_COORD_SET);
+            ChangeBgX(2, 0, BG_COORD_SET);
+            ChangeBgY(2, 0, BG_COORD_SET);
             ShowBg(1);
             ShowBg(2);
             HideBg(3);
diff --git a/src/rayquaza_scene.c b/src/rayquaza_scene.c
index 642fe6233b..51498fa1d6 100644
--- a/src/rayquaza_scene.c
+++ b/src/rayquaza_scene.c
@@ -1757,8 +1757,8 @@ static void DuoFight_LightningLong(void)
 
 static void DuoFight_AnimateRain(void)
 {
-    ChangeBgX(2, 0x400, 1);
-    ChangeBgY(2, 0x800, 2);
+    ChangeBgX(2, 0x400, BG_COORD_ADD);
+    ChangeBgY(2, 0x800, BG_COORD_SUB);
 }
 
 // Only used by the full version, which pans up at the end (so scene objects move down)
@@ -1772,7 +1772,7 @@ static void DuoFight_PanOffScene(u8 taskId)
 
     bgY = GetBgY(1);
     if (GetBgY(1) == 0 || bgY > 0x8000)
-        ChangeBgY(1, 0x400, 2);
+        ChangeBgY(1, 0x400, BG_COORD_SUB);
 
     if (tTimer != 16)
     {
@@ -1795,7 +1795,7 @@ static void Task_DuoFightEnd(u8 taskId)
     if (!gPaletteFade.active)
     {
         DestroyTask(tHelperTaskId);
-        ChangeBgY(1, 0, 0);
+        ChangeBgY(1, 0, BG_COORD_SET);
         SetVBlankCallback(NULL);
         ScanlineEffect_Stop();
         ResetSpriteData();
@@ -2579,8 +2579,8 @@ static void Task_RayCharges_ShakeRayquaza(u8 taskId)
     s16 *data = gTasks[taskId].data;
     if ((tTimer & 3) == 0)
     {
-        ChangeBgX(1, (Random() % 8 - 4) << 8, 0);
-        ChangeBgY(1, (Random() % 8 - 4) << 8, 0);
+        ChangeBgX(1, (Random() % 8 - 4) << 8, BG_COORD_SET);
+        ChangeBgY(1, (Random() % 8 - 4) << 8, BG_COORD_SET);
     }
 
     tTimer++;
@@ -2592,16 +2592,16 @@ static void Task_RayCharges_FlyOffscreen(u8 taskId)
     s16 *data = gTasks[taskId].data;
     if (tState == 0)
     {
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
         tState++;
         tOffset = 10;
         tShakeDir = -1;
     }
     else if (tState == 1)
     {
-        ChangeBgX(1, tOffset << 8, 2);
-        ChangeBgY(1, tOffset << 8, 1);
+        ChangeBgX(1, tOffset << 8, BG_COORD_SUB);
+        ChangeBgY(1, tOffset << 8, BG_COORD_ADD);
         tOffset += tShakeDir;
         if (tOffset == -10)
             tShakeDir *= -1;
@@ -2616,12 +2616,12 @@ static void Task_RayCharges_FlyOffscreen(u8 taskId)
 static void RayCharges_AnimateBg(void)
 {
     // Update yellow orbs
-    ChangeBgX(2, 0x400, 2);
-    ChangeBgY(2, 0x400, 1);
+    ChangeBgX(2, 0x400, BG_COORD_SUB);
+    ChangeBgY(2, 0x400, BG_COORD_ADD);
 
     // Update blue streaks
-    ChangeBgX(0, 0x800, 2);
-    ChangeBgY(0, 0x800, 1);
+    ChangeBgX(0, 0x800, BG_COORD_SUB);
+    ChangeBgY(0, 0x800, BG_COORD_ADD);
 }
 
 static void Task_RayChargesEnd(u8 taskId)
diff --git a/src/starter_choose.c b/src/starter_choose.c
index 942f602730..403964684f 100644
--- a/src/starter_choose.c
+++ b/src/starter_choose.c
@@ -389,14 +389,14 @@ void CB2_ChooseStarter(void)
     SetGpuReg(REG_OFFSET_BG1CNT, 0);
     SetGpuReg(REG_OFFSET_BG0CNT, 0);
 
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
 
     DmaFill16(3, 0, VRAM, VRAM_SIZE);
     DmaFill32(3, 0, OAM, OAM_SIZE);
diff --git a/src/trade.c b/src/trade.c
index 88bef1ea01..4089cf1dfd 100644
--- a/src/trade.c
+++ b/src/trade.c
@@ -2907,8 +2907,8 @@ static void InitTradeBgInternal(void)
     SetGpuReg(REG_OFFSET_DISPCNT, 0);
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sTradeSequenceBgTemplates, ARRAY_COUNT(sTradeSequenceBgTemplates));
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
     SetBgTilemapBuffer(0, Alloc(BG_SCREEN_SIZE));
     SetBgTilemapBuffer(1, Alloc(BG_SCREEN_SIZE));
     SetBgTilemapBuffer(3, Alloc(BG_SCREEN_SIZE));
diff --git a/src/trainer_card.c b/src/trainer_card.c
index 8f3b61a356..02c7056314 100755
--- a/src/trainer_card.c
+++ b/src/trainer_card.c
@@ -884,14 +884,14 @@ static void InitBgsAndWindows(void)
 {
     ResetBgsAndClearDma3BusyFlags(0);
     InitBgsFromTemplates(0, sTrainerCardBgTemplates, ARRAY_COUNT(sTrainerCardBgTemplates));
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     InitWindows(sTrainerCardWindowTemplates);
     DeactivateAllTextPrinters();
     LoadMessageBoxAndBorderGfx();
diff --git a/src/union_room_chat.c b/src/union_room_chat.c
index c6fe7413e1..34aef1a887 100755
--- a/src/union_room_chat.c
+++ b/src/union_room_chat.c
@@ -2803,7 +2803,7 @@ static void AddStdMessageWindow(int msgId, u16 bg0vofs)
         str = sDisplayStdMessages[msgId].text;
     }
 
-    ChangeBgY(0, bg0vofs * 256, 0);
+    ChangeBgY(0, bg0vofs * 256, BG_COORD_SET);
     FillWindowPixelBuffer(windowId, PIXEL_FILL(1));
     PutWindowTilemap(windowId);
     if (sDisplayStdMessages[msgId].boxType == 1)
@@ -2846,7 +2846,7 @@ static void HideStdMessageWindow(void)
         ClearWindowTilemap(sDisplay->messageWindowId);
     }
 
-    ChangeBgY(0, 0, 0);
+    ChangeBgY(0, 0, BG_COORD_SET);
 }
 
 static void DestroyStdMessageWindow(void)
@@ -3011,14 +3011,14 @@ static void PrintChatMessage(u16 row, u8 *str, u8 colorIdx)
 
 static void ResetGpuBgState(void)
 {
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     ShowBg(0);
     ShowBg(1);
     ShowBg(2);
diff --git a/src/use_pokeblock.c b/src/use_pokeblock.c
index e67ade342c..9f8918ba2d 100644
--- a/src/use_pokeblock.c
+++ b/src/use_pokeblock.c
@@ -1316,14 +1316,14 @@ static bool8 LoadUsePokeblockMenuGfx(void)
     switch (sMenu->info.helperState)
     {
     case 0:
-        ChangeBgX(0, 0, 0);
-        ChangeBgY(0, 0, 0);
-        ChangeBgX(1, 0, 0);
-        ChangeBgY(1, 0, 0);
-        ChangeBgX(2, 0, 0);
-        ChangeBgY(2, 0, 0);
-        ChangeBgX(3, 0, 0);
-        ChangeBgY(3, 136 << 6, 0);
+        ChangeBgX(0, 0, BG_COORD_SET);
+        ChangeBgY(0, 0, BG_COORD_SET);
+        ChangeBgX(1, 0, BG_COORD_SET);
+        ChangeBgY(1, 0, BG_COORD_SET);
+        ChangeBgX(2, 0, BG_COORD_SET);
+        ChangeBgY(2, 0, BG_COORD_SET);
+        ChangeBgX(3, 0, BG_COORD_SET);
+        ChangeBgY(3, 136 << 6, BG_COORD_SET);
         SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_1D_MAP | DISPCNT_OBJ_ON | DISPCNT_WIN0_ON | DISPCNT_WIN1_ON);
         SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG2 | BLDCNT_EFFECT_BLEND | BLDCNT_TGT2_BG1);
         SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(11, 4));
diff --git a/src/wallclock.c b/src/wallclock.c
index 407c89c49a..759b1d11ff 100644
--- a/src/wallclock.c
+++ b/src/wallclock.c
@@ -628,14 +628,14 @@ static void LoadWallClockGraphics(void)
     SetGpuReg(REG_OFFSET_BG2CNT, 0);
     SetGpuReg(REG_OFFSET_BG1CNT, 0);
     SetGpuReg(REG_OFFSET_BG0CNT, 0);
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
-    ChangeBgX(2, 0, 0);
-    ChangeBgY(2, 0, 0);
-    ChangeBgX(3, 0, 0);
-    ChangeBgY(3, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
+    ChangeBgX(2, 0, BG_COORD_SET);
+    ChangeBgY(2, 0, BG_COORD_SET);
+    ChangeBgX(3, 0, BG_COORD_SET);
+    ChangeBgY(3, 0, BG_COORD_SET);
     DmaFillLarge16(3, 0, (void *)VRAM, VRAM_SIZE, 0x1000);
     DmaClear32(3, (void *)OAM, OAM_SIZE);
     DmaClear16(3, (void *)PLTT, PLTT_SIZE);
diff --git a/src/wireless_communication_status_screen.c b/src/wireless_communication_status_screen.c
index a12a8920c1..ffb86488aa 100644
--- a/src/wireless_communication_status_screen.c
+++ b/src/wireless_communication_status_screen.c
@@ -189,10 +189,10 @@ static void CB2_InitWirelessCommunicationScreen(void)
     sStatusScreen->taskId = CreateTask(Task_WirelessCommunicationScreen, 0);
     sStatusScreen->rfuTaskId = CreateTask_ListenToWireless();
     sStatusScreen->prevGroupCounts[GROUPTYPE_TOTAL] = 1;
-    ChangeBgX(0, 0, 0);
-    ChangeBgY(0, 0, 0);
-    ChangeBgX(1, 0, 0);
-    ChangeBgY(1, 0, 0);
+    ChangeBgX(0, 0, BG_COORD_SET);
+    ChangeBgY(0, 0, BG_COORD_SET);
+    ChangeBgX(1, 0, BG_COORD_SET);
+    ChangeBgY(1, 0, BG_COORD_SET);
     LoadPalette(sBgTiles_Pal, 0x00, 0x20);
     Menu_LoadStdPalAt(0xF0);
     DynamicPlaceholderTextUtil_Reset();