Document more misc field effects

8 files changed, 408 insertions, 393 deletions

diff --git a/src/field_effect.c b/src/field_effect.c
index fbf6bd10c..b681fc70e 100644
--- a/src/field_effect.c
+++ b/src/field_effect.c
@@ -2229,7 +2229,7 @@ void StartEscapeRopeFieldEffect(void)
 {
     ScriptContext2_Enable();
     FreezeObjectEvents();
-    CreateTask(Task_EscapeRopeWarpOut, 0x50);
+    CreateTask(Task_EscapeRopeWarpOut, 80);
 }
 
 static void Task_EscapeRopeWarpOut(u8 taskId)
@@ -2598,8 +2598,8 @@ static void FieldMoveShowMonOutdoorsEffect_Init(struct Task *task)
     task->data[11] = REG_WININ;
     task->data[12] = REG_WINOUT;
     StoreWordInTwoHalfwords(&task->data[13], (u32)gMain.vblankCallback);
-    task->tWinHoriz = WIN_RANGE(240, 241);
-    task->tWinVert = WIN_RANGE(80, 81);
+    task->tWinHoriz = WIN_RANGE(DISPLAY_WIDTH, DISPLAY_WIDTH + 1);
+    task->tWinVert = WIN_RANGE(DISPLAY_HEIGHT / 2, DISPLAY_HEIGHT / 2 + 1);
     task->tWinIn = WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR;
     task->tWinOut = WINOUT_WIN01_BG1 | WINOUT_WIN01_BG2 | WINOUT_WIN01_BG3 | WINOUT_WIN01_OBJ | WINOUT_WIN01_CLR;
     SetGpuReg(REG_OFFSET_WIN0H, task->tWinHoriz);
@@ -2637,15 +2637,15 @@ static void FieldMoveShowMonOutdoorsEffect_CreateBanner(struct Task *task)
     if (horiz < 0)
         horiz = 0;
 
-    if (vertHi < 40)
-        vertHi = 40;
+    if (vertHi < DISPLAY_HEIGHT / 4)
+        vertHi = DISPLAY_HEIGHT / 4;
 
-    if (vertLo > 120)
-        vertLo = 120;
+    if (vertLo > DISPLAY_WIDTH / 2)
+        vertLo = DISPLAY_WIDTH / 2;
 
     task->tWinHoriz = (horiz << 8) | (task->tWinHoriz & 0xff);
     task->tWinVert = (vertHi << 8) | vertLo;
-    if (horiz == 0 && vertHi == 40 && vertLo == 120)
+    if (horiz == 0 && vertHi == DISPLAY_HEIGHT / 4 && vertLo == DISPLAY_WIDTH / 2)
     {
         gSprites[task->tMonSpriteId].callback = SpriteCB_FieldMoveMonSlideOnscreen;
         task->tState++;
@@ -2670,15 +2670,15 @@ static void FieldMoveShowMonOutdoorsEffect_ShrinkBanner(struct Task *task)
     vertHi += 6;
     vertLo -= 6;
 
-    if (vertHi > 80)
-        vertHi = 80;
+    if (vertHi > DISPLAY_HEIGHT / 2)
+        vertHi = DISPLAY_HEIGHT / 2;
 
-    if (vertLo < 81)
-        vertLo = 81;
+    if (vertLo < DISPLAY_HEIGHT / 2 + 1)
+        vertLo = DISPLAY_HEIGHT / 2 + 1;
 
     task->tWinVert = (vertHi << 8) | vertLo;
 
-    if (vertHi == 80 && vertLo == 81)
+    if (vertHi == DISPLAY_HEIGHT / 2 && vertLo == DISPLAY_HEIGHT / 2 + 1)
         task->tState++;
 }
 
@@ -2686,8 +2686,8 @@ static void FieldMoveShowMonOutdoorsEffect_RestoreBg(struct Task *task)
 {
     u16 bg0cnt = (REG_BG0CNT >> 8) << 11;
     CpuFill32(0, (void *)VRAM + bg0cnt, 0x800);
-    task->tWinHoriz = 241;
-    task->tWinVert = 161;
+    task->tWinHoriz = DISPLAY_WIDTH + 1;
+    task->tWinVert = DISPLAY_HEIGHT + 1;
     task->tWinIn = task->data[11];
     task->tWinOut = task->data[12];
     task->tState++;
@@ -2787,8 +2787,8 @@ static void FieldMoveShowMonIndoorsEffect_SlideBannerOn(struct Task *task)
 {
     if (SlideIndoorBannerOnscreen(task))
     {
-        SetGpuReg(REG_OFFSET_WIN1H, 0x00f0);
-        SetGpuReg(REG_OFFSET_WIN1V, 0x2878);
+        SetGpuReg(REG_OFFSET_WIN1H, WIN_RANGE(0, DISPLAY_WIDTH));
+        SetGpuReg(REG_OFFSET_WIN1V, WIN_RANGE(DISPLAY_HEIGHT / 4, DISPLAY_HEIGHT - DISPLAY_HEIGHT / 4));
         gSprites[task->tMonSpriteId].callback = SpriteCB_FieldMoveMonSlideOnscreen;
         task->tState++;
     }
@@ -2807,8 +2807,8 @@ static void FieldMoveShowMonIndoorsEffect_RestoreBg(struct Task *task)
     AnimateIndoorShowMonBg(task);
     task->tBgOffsetIdx = task->tBgHoriz & 7;
     task->tBgOffset = 0;
-    SetGpuReg(REG_OFFSET_WIN1H, 0xffff);
-    SetGpuReg(REG_OFFSET_WIN1V, 0xffff);
+    SetGpuReg(REG_OFFSET_WIN1H, WIN_RANGE(0xFF, 0xFF));
+    SetGpuReg(REG_OFFSET_WIN1V, WIN_RANGE(0xFF, 0xFF));
     task->tState++;
 }
 
@@ -2917,7 +2917,7 @@ static u8 InitFieldMoveMonSprite(u32 species, u32 otId, u32 personality)
     struct Sprite *sprite;
     v0 = (species & 0x80000000) >> 16;
     species &= 0x7fffffff;
-    monSprite = CreateMonSprite_FieldMove(species, otId, personality, 0x140, 0x50, 0);
+    monSprite = CreateMonSprite_FieldMove(species, otId, personality, 320, 80, 0);
     sprite = &gSprites[monSprite];
     sprite->callback = SpriteCallbackDummy;
     sprite->oam.priority = 0;
@@ -2928,9 +2928,9 @@ static u8 InitFieldMoveMonSprite(u32 species, u32 otId, u32 personality)
 
 static void SpriteCB_FieldMoveMonSlideOnscreen(struct Sprite *sprite)
 {
-    if ((sprite->pos1.x -= 20) <= 120)
+    if ((sprite->pos1.x -= 20) <= DISPLAY_WIDTH / 2)
     {
-        sprite->pos1.x = 120;
+        sprite->pos1.x = DISPLAY_WIDTH / 2;
         sprite->sOnscreenTimer = 30;
         sprite->callback = SpriteCB_FieldMoveMonWaitAfterCry;
         if (sprite->data[6])
@@ -2947,21 +2947,15 @@ static void SpriteCB_FieldMoveMonSlideOnscreen(struct Sprite *sprite)
 static void SpriteCB_FieldMoveMonWaitAfterCry(struct Sprite *sprite)
 {
     if ((--sprite->sOnscreenTimer) == 0)
-    {
         sprite->callback = SpriteCB_FieldMoveMonSlideOffscreen;
-    }
 }
 
 static void SpriteCB_FieldMoveMonSlideOffscreen(struct Sprite *sprite)
 {
     if (sprite->pos1.x < -64)
-    {
         sprite->sSlidOffscreen = TRUE;
-    }
     else
-    {
         sprite->pos1.x -= 20;
-    }
 }
 
 #undef tState
@@ -3311,7 +3305,7 @@ static void StartFlyBirdSwoopDown(u8 spriteId)
     struct Sprite *sprite;
     sprite = &gSprites[spriteId];
     sprite->callback = SpriteCB_FlyBirdSwoopDown;
-    sprite->pos1.x = 120;
+    sprite->pos1.x = DISPLAY_WIDTH / 2;
     sprite->pos1.y = 0;
     sprite->pos2.x = 0;
     sprite->pos2.y = 0;
diff --git a/src/fieldmap.c b/src/fieldmap.c
index 5eb00ad27..8e45add3f 100644
--- a/src/fieldmap.c
+++ b/src/fieldmap.c
@@ -939,7 +939,7 @@ static bool8 SkipCopyingMetatileFromSavedMap(u16* mapMetatilePtr, u16 mapWidth,
     else
         mapMetatilePtr += mapWidth;
 
-    if (sub_80FADE4(*mapMetatilePtr & METATILE_ID_MASK, yMode) == 1)
+    if (IsLargeBreakableDecoration(*mapMetatilePtr & METATILE_ID_MASK, yMode) == TRUE)
         return TRUE;
     return FALSE;
 }
diff --git a/src/fldeff_cut.c b/src/fldeff_cut.c
index 2c9151598..efd533d08 100644
--- a/src/fldeff_cut.c
+++ b/src/fldeff_cut.c
@@ -355,36 +355,36 @@ static void SetCutGrassMetatile(s16 x, s16 y)
 
     switch (metatileId)
     {
-    case METATILE_ID(Fortree, LongGrass_Root):
-    case METATILE_ID(General, LongGrass):
-    case METATILE_ID(General, TallGrass):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(General, Grass));
+    case METATILE_Fortree_LongGrass_Root:
+    case METATILE_General_LongGrass:
+    case METATILE_General_TallGrass:
+        MapGridSetMetatileIdAt(x, y, METATILE_General_Grass);
         break;
-    case METATILE_ID(General, TallGrass_TreeLeft):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(General, Grass_TreeLeft));
+    case METATILE_General_TallGrass_TreeLeft:
+        MapGridSetMetatileIdAt(x, y, METATILE_General_Grass_TreeLeft);
         break;
-    case METATILE_ID(General, TallGrass_TreeRight):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(General, Grass_TreeRight));
+    case METATILE_General_TallGrass_TreeRight:
+        MapGridSetMetatileIdAt(x, y, METATILE_General_Grass_TreeRight);
         break;
-    case METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft));
+    case METATILE_Fortree_SecretBase_LongGrass_BottomLeft:
+        MapGridSetMetatileIdAt(x, y, METATILE_Fortree_SecretBase_LongGrass_TopLeft);
         break;
-    case METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(Fortree, SecretBase_LongGrass_TopMid));
+    case METATILE_Fortree_SecretBase_LongGrass_BottomMid:
+        MapGridSetMetatileIdAt(x, y, METATILE_Fortree_SecretBase_LongGrass_TopMid);
         break;
-    case METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(Fortree, SecretBase_LongGrass_TopRight));
+    case METATILE_Fortree_SecretBase_LongGrass_BottomRight:
+        MapGridSetMetatileIdAt(x, y, METATILE_Fortree_SecretBase_LongGrass_TopRight);
         break;
-    case METATILE_ID(Lavaridge, NormalGrass):
-    case METATILE_ID(Lavaridge, AshGrass):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(Lavaridge, LavaField));
+    case METATILE_Lavaridge_NormalGrass:
+    case METATILE_Lavaridge_AshGrass:
+        MapGridSetMetatileIdAt(x, y, METATILE_Lavaridge_LavaField);
         break;
-    case METATILE_ID(Fallarbor, NormalGrass):
-    case METATILE_ID(Fallarbor, AshGrass):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(Fallarbor, AshField));
+    case METATILE_Fallarbor_NormalGrass:
+    case METATILE_Fallarbor_AshGrass:
+        MapGridSetMetatileIdAt(x, y, METATILE_Fallarbor_AshField);
         break;
-    case METATILE_ID(General, TallGrass_TreeUp):
-        MapGridSetMetatileIdAt(x, y, METATILE_ID(General, Grass_TreeUp));
+    case METATILE_General_TallGrass_TreeUp:
+        MapGridSetMetatileIdAt(x, y, METATILE_General_Grass_TreeUp);
         break;
     }
 }
@@ -402,13 +402,13 @@ static u8 GetLongGrassCaseAt(s16 x, s16 y)
 {
     u16 metatileId = MapGridGetMetatileIdAt(x, y);
 
-    if (metatileId == METATILE_ID(General, Grass))
+    if (metatileId == METATILE_General_Grass)
         return LONG_GRASS_FIELD;
-    else if (metatileId == METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft))
+    else if (metatileId == METATILE_Fortree_SecretBase_LongGrass_TopLeft)
         return LONG_GRASS_BASE_LEFT;
-    else if (metatileId == METATILE_ID(Fortree, SecretBase_LongGrass_TopMid))
+    else if (metatileId == METATILE_Fortree_SecretBase_LongGrass_TopMid)
         return LONG_GRASS_BASE_CENTER;
-    else if (metatileId == METATILE_ID(Fortree, SecretBase_LongGrass_TopRight))
+    else if (metatileId == METATILE_Fortree_SecretBase_LongGrass_TopRight)
         return LONG_GRASS_BASE_RIGHT;
     else
         return LONG_GRASS_NONE;
@@ -422,34 +422,34 @@ static void SetCutGrassMetatiles(s16 x, s16 y)
     for (i = 0; i < sCutSquareSide; i++)
     {
         s16 currentX = x + i;
-        if (MapGridGetMetatileIdAt(currentX, y) == METATILE_ID(General, LongGrass))
+        if (MapGridGetMetatileIdAt(currentX, y) == METATILE_General_LongGrass)
         {
             switch (GetLongGrassCaseAt(currentX, y + 1))
             {
             case LONG_GRASS_FIELD:
-                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_ID(Fortree, LongGrass_Root));
+                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_Fortree_LongGrass_Root);
                 break;
             case LONG_GRASS_BASE_LEFT:
-                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft));
+                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomLeft);
                 break;
             case LONG_GRASS_BASE_CENTER:
-                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid));
+                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomMid);
                 break;
             case LONG_GRASS_BASE_RIGHT:
-                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight));
+                MapGridSetMetatileIdAt(currentX, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomRight);
                 break;
             }
         }
-        if (MapGridGetMetatileIdAt(currentX, lowerY) == METATILE_ID(General, Grass))
+        if (MapGridGetMetatileIdAt(currentX, lowerY) == METATILE_General_Grass)
         {
-            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_ID(Fortree, LongGrass_Root))
-                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_ID(General, Grass));
-            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft))
-                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft));
-            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid))
-                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopMid));
-            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight))
-                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopRight));
+            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_Fortree_LongGrass_Root)
+                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_General_Grass);
+            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_Fortree_SecretBase_LongGrass_BottomLeft)
+                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_Fortree_SecretBase_LongGrass_TopLeft);
+            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_Fortree_SecretBase_LongGrass_BottomMid)
+                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_Fortree_SecretBase_LongGrass_TopMid);
+            if (MapGridGetMetatileIdAt(currentX, lowerY + 1) == METATILE_Fortree_SecretBase_LongGrass_BottomRight)
+                MapGridSetMetatileIdAt(currentX, lowerY + 1, METATILE_Fortree_SecretBase_LongGrass_TopRight);
         }
     }
 
@@ -486,62 +486,62 @@ static void HandleLongGrassOnHyper(u8 caseId, s16 x, s16 y)
 
     if (arr[0] == TRUE)
     {
-        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_ID(Fortree, LongGrass_Root))
-            MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(General, Grass));
-        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft))
-            MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft));
-        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid))
-            MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_TopMid));
-        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight))
-            MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_TopRight));
+        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_Fortree_LongGrass_Root)
+            MapGridSetMetatileIdAt(newX, y + 3, METATILE_General_Grass);
+        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_Fortree_SecretBase_LongGrass_BottomLeft)
+            MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_TopLeft);
+        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_Fortree_SecretBase_LongGrass_BottomMid)
+            MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_TopMid);
+        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_Fortree_SecretBase_LongGrass_BottomRight)
+            MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_TopRight);
     }
     if (arr[1] == TRUE)
     {
-        if (MapGridGetMetatileIdAt(newX, y + 2) == METATILE_ID(General, LongGrass))
+        if (MapGridGetMetatileIdAt(newX, y + 2) == METATILE_General_LongGrass)
         {
             switch (GetLongGrassCaseAt(newX, y + 3))
             {
             case LONG_GRASS_FIELD:
-                MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, LongGrass_Root));
+                MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_LongGrass_Root);
                 break;
             case LONG_GRASS_BASE_LEFT:
-                MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft));
+                MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_BottomLeft);
                 break;
             case LONG_GRASS_BASE_CENTER:
-                MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid));
+                MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_BottomMid);
                 break;
             case LONG_GRASS_BASE_RIGHT:
-                MapGridSetMetatileIdAt(newX, y + 3, METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight));
+                MapGridSetMetatileIdAt(newX, y + 3, METATILE_Fortree_SecretBase_LongGrass_BottomRight);
                 break;
             }
         }
 
-        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_ID(Fortree, LongGrass_Root))
-            MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(General, Grass));
-        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft))
-            MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft));
-        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid))
-            MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_TopMid));
-        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight))
-            MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_TopRight));
+        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_Fortree_LongGrass_Root)
+            MapGridSetMetatileIdAt(newX, y + 4, METATILE_General_Grass);
+        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_Fortree_SecretBase_LongGrass_BottomLeft)
+            MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_TopLeft);
+        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_Fortree_SecretBase_LongGrass_BottomMid)
+            MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_TopMid);
+        if (MapGridGetMetatileIdAt(newX, y + 4) == METATILE_Fortree_SecretBase_LongGrass_BottomRight)
+            MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_TopRight);
     }
     if (arr[2] == TRUE)
     {
-        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_ID(General, LongGrass))
+        if (MapGridGetMetatileIdAt(newX, y + 3) == METATILE_General_LongGrass)
         {
             switch (GetLongGrassCaseAt(newX, y + 4))
             {
             case LONG_GRASS_FIELD:
-                MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, LongGrass_Root));
+                MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_LongGrass_Root);
                 break;
             case LONG_GRASS_BASE_LEFT:
-                MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft));
+                MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_BottomLeft);
                 break;
             case LONG_GRASS_BASE_CENTER:
-                MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid));
+                MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_BottomMid);
                 break;
             case LONG_GRASS_BASE_RIGHT:
-                MapGridSetMetatileIdAt(newX, y + 4, METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight));
+                MapGridSetMetatileIdAt(newX, y + 4, METATILE_Fortree_SecretBase_LongGrass_BottomRight);
                 break;
             }
         }
@@ -595,16 +595,16 @@ void FixLongGrassMetatilesWindowTop(s16 x, s16 y)
         switch (GetLongGrassCaseAt(x, y + 1))
         {
         case LONG_GRASS_FIELD:
-            MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, LongGrass_Root));
+            MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_LongGrass_Root);
             break;
         case LONG_GRASS_BASE_LEFT:
-            MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft));
+            MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomLeft);
             break;
         case LONG_GRASS_BASE_CENTER:
-            MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid));
+            MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomMid);
             break;
         case LONG_GRASS_BASE_RIGHT:
-            MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight));
+            MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_BottomRight);
             break;
         }
     }
@@ -612,7 +612,7 @@ void FixLongGrassMetatilesWindowTop(s16 x, s16 y)
 
 void FixLongGrassMetatilesWindowBottom(s16 x, s16 y)
 {
-    if (MapGridGetMetatileIdAt(x, y) == METATILE_ID(General, Grass))
+    if (MapGridGetMetatileIdAt(x, y) == METATILE_General_Grass)
     {
         u8 metatileBehavior = MapGridGetMetatileBehaviorAt(x, y + 1);
         if (MetatileBehavior_IsLongGrassSouthEdge(metatileBehavior))
@@ -620,17 +620,17 @@ void FixLongGrassMetatilesWindowBottom(s16 x, s16 y)
             s32 metatileId = MapGridGetMetatileIdAt(x, y + 1);
             switch (metatileId)
             {
-            case METATILE_ID(Fortree, LongGrass_Root):
-                MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(General, Grass));
+            case METATILE_Fortree_LongGrass_Root:
+                MapGridSetMetatileIdAt(x, y + 1, METATILE_General_Grass);
                 break;
-            case METATILE_ID(Fortree, SecretBase_LongGrass_BottomLeft):
-                MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopLeft));
+            case METATILE_Fortree_SecretBase_LongGrass_BottomLeft:
+                MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_TopLeft);
                 break;
-            case METATILE_ID(Fortree, SecretBase_LongGrass_BottomMid):
-                MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopMid));
+            case METATILE_Fortree_SecretBase_LongGrass_BottomMid:
+                MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_TopMid);
                 break;
-            case METATILE_ID(Fortree, SecretBase_LongGrass_BottomRight):
-                MapGridSetMetatileIdAt(x, y + 1, METATILE_ID(Fortree, SecretBase_LongGrass_TopRight));
+            case METATILE_Fortree_SecretBase_LongGrass_BottomRight:
+                MapGridSetMetatileIdAt(x, y + 1, METATILE_Fortree_SecretBase_LongGrass_TopRight);
                 break;
             }
         }
diff --git a/src/fldeff_misc.c b/src/fldeff_misc.c
index bb5bd65d7..50feaf368 100644
--- a/src/fldeff_misc.c
+++ b/src/fldeff_misc.c
@@ -28,68 +28,54 @@
 
 EWRAM_DATA struct MapPosition gPlayerFacingPosition = {0};
 
-static void sub_80F9C90(u8);
-static void sub_80F9DFC(u8);
+static void Task_ComputerScreenOpenEffect(u8);
+static void Task_ComputerScreenCloseEffect(u8);
+static void CreateComputerScreenEffectTask(TaskFunc, u16, u16, u8);
 
 static void Task_SecretBasePCTurnOn(u8);
 
 static void Task_PopSecretBaseBalloon(u8);
 static void DoBalloonSoundEffect(s16);
 
-static void Task_WateringBerryTreeAnim_1(u8);
-static void Task_WateringBerryTreeAnim_2(u8);
-static void Task_WateringBerryTreeAnim_3(u8);
-
-static void sub_80F9C44(TaskFunc, u16, u16, u8);
+static void Task_WateringBerryTreeAnim_Start(u8);
+static void Task_WateringBerryTreeAnim_Continue(u8);
+static void Task_WateringBerryTreeAnim_End(u8);
 
 static void FieldCallback_SecretBaseCave(void);
-static void CaveEntranceSpriteCallback1(struct Sprite *);
-static void CaveEntranceSpriteCallback2(struct Sprite *);
-static void CaveEntranceSpriteCallbackEnd(struct Sprite *);
+static void SpriteCB_CaveEntranceInit(struct Sprite *);
+static void SpriteCB_CaveEntranceOpen(struct Sprite *);
+static void SpriteCB_CaveEntranceEnd(struct Sprite *);
 static void StartSecretBaseCaveFieldEffect(void);
 
 static void FieldCallback_SecretBaseTree(void);
-static void TreeEntranceSpriteCallback1(struct Sprite *);
-static void TreeEntranceSpriteCallback2(struct Sprite *);
-static void TreeEntranceSpriteCallbackEnd(struct Sprite *);
+static void SpriteCB_TreeEntranceInit(struct Sprite *);
+static void SpriteCB_TreeEntranceOpen(struct Sprite *);
+static void SpriteCB_TreeEntranceEnd(struct Sprite *);
 static void StartSecretBaseTreeFieldEffect(void);
 
 static void FieldCallback_SecretBaseShrub(void);
-static void ShrubEntranceSpriteCallback1(struct Sprite *);
-static void ShrubEntranceSpriteCallback2(struct Sprite *);
-static void ShrubEntranceSpriteCallbackEnd(struct Sprite *);
+static void SpriteCB_ShrubEntranceInit(struct Sprite *);
+static void SpriteCB_ShrubEntranceOpen(struct Sprite *);
+static void SpriteCB_ShrubEntranceEnd(struct Sprite *);
 static void StartSecretBaseShrubFieldEffect(void);
 
-static void SpriteCB_SandPillar_0(struct Sprite *);
-static void SpriteCB_SandPillar_1(struct Sprite *);
-static void SpriteCB_SandPillar_2(struct Sprite *);
-
-static const u8 gSpriteImage_858D978[] = INCBIN_U8("graphics/unknown/858E588/0.4bpp");
-static const u8 gSpriteImage_858D9F8[] = INCBIN_U8("graphics/unknown/858E588/1.4bpp");
-static const u8 gSpriteImage_858DA78[] = INCBIN_U8("graphics/unknown/858E588/2.4bpp");
-static const u8 gSpriteImage_858DAF8[] = INCBIN_U8("graphics/unknown/858E588/3.4bpp");
-static const u8 gSpriteImage_858DB78[] = INCBIN_U8("graphics/unknown/858E588/4.4bpp");
-
-static const u8 gUnusedEmptySpace_858DBF8[32] = {0};
-
-static const u16 gFieldEffectObjectPalette7[] = INCBIN_U16("graphics/field_effects/palettes/07.gbapal");
-static const u8 gSpriteImage_858DC38[] = INCBIN_U8("graphics/unknown/858E5D8/0.4bpp");
-static const u8 gSpriteImage_858DCB8[] = INCBIN_U8("graphics/unknown/858E5D8/1.4bpp");
-static const u8 gSpriteImage_858DD38[] = INCBIN_U8("graphics/unknown/858E5D8/2.4bpp");
-static const u8 gSpriteImage_858DDB8[] = INCBIN_U8("graphics/unknown/858E5D8/3.4bpp");
-static const u8 gSpriteImage_858DE38[] = INCBIN_U8("graphics/unknown/858E5D8/4.4bpp");
-static const u8 gSpriteImage_858DEB8[] = INCBIN_U8("graphics/unknown/858E5B0/0.4bpp");
-static const u8 gSpriteImage_858DF38[] = INCBIN_U8("graphics/unknown/858E5B0/1.4bpp");
-static const u8 gSpriteImage_858DFB8[] = INCBIN_U8("graphics/unknown/858E5B0/2.4bpp");
-static const u8 gSpriteImage_858E038[] = INCBIN_U8("graphics/unknown/858E5B0/3.4bpp");
-static const u8 gSpriteImage_858E0B8[] = INCBIN_U8("graphics/unknown/858E5B0/4.4bpp");
-static const u8 gSpriteImage_858E138[] = INCBIN_U8("graphics/unknown/858E5B0/5.4bpp");
-static const u16 gFieldEffectObjectPalette8[] = INCBIN_U16("graphics/field_effects/palettes/08.gbapal");
-static const u8 gSpriteImage_858E1D8[] = INCBIN_U8("graphics/unknown/858E674/0.4bpp");
-static const u8 gSpriteImage_858E2D8[] = INCBIN_U8("graphics/unknown/858E674/1.4bpp");
-static const u8 gSpriteImage_858E3D8[] = INCBIN_U8("graphics/unknown/858E674/2.4bpp");
-
-static const struct OamData gOamData_858E4D8 =
+static void SpriteCB_SandPillar_BreakTop(struct Sprite *);
+static void SpriteCB_SandPillar_BreakBase(struct Sprite *);
+static void SpriteCB_SandPillar_End(struct Sprite *);
+
+static const u8 sSecretPowerCave_Gfx[] = INCBIN_U8("graphics/field_effects/pics/secret_power_cave.4bpp");
+static const u8 sFiller[32] = {0};
+static const u16 sSecretPowerCave_Pal[] = INCBIN_U16("graphics/field_effects/palettes/07.gbapal");
+static const u8 sSecretPowerShrub_Gfx[] = INCBIN_U8("graphics/field_effects/pics/secret_power_shrub.4bpp");
+static const u8 sSecretPowerTree_Gfx[] = INCBIN_U8("graphics/field_effects/pics/secret_power_tree.4bpp");
+static const u16 sSecretPowerPlant_Pal[] = INCBIN_U16("graphics/field_effects/palettes/08.gbapal");
+
+// TODO: These should also be combined into a single image
+static const u8 sSandPillar0_Gfx[] = INCBIN_U8("graphics/field_effects/pics/sand_pillar/0.4bpp");
+static const u8 sSandPillar1_Gfx[] = INCBIN_U8("graphics/field_effects/pics/sand_pillar/1.4bpp");
+static const u8 sSandPillar2_Gfx[] = INCBIN_U8("graphics/field_effects/pics/sand_pillar/2.4bpp");
+
+static const struct OamData sOam_SecretPower =
 {
     .y = 0,
     .x = 0,
@@ -101,7 +87,7 @@ static const struct OamData gOamData_858E4D8 =
     .priority = 2,
 };
 
-static const union AnimCmd gSpriteAnim_858E4E0[] =
+static const union AnimCmd sAnim_SecretPowerCave[] =
 {
     ANIMCMD_FRAME(0, 8),
     ANIMCMD_FRAME(1, 8),
@@ -111,7 +97,7 @@ static const union AnimCmd gSpriteAnim_858E4E0[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd gSpriteAnim_858E4F8[] =
+static const union AnimCmd sAnim_VineDropLeft[] =
 {
     ANIMCMD_FRAME(0, 8),
     ANIMCMD_FRAME(1, 8),
@@ -121,7 +107,7 @@ static const union AnimCmd gSpriteAnim_858E4F8[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd gSpriteAnim_858E510[] =
+static const union AnimCmd sAnim_VineRiseLeft[] =
 {
     ANIMCMD_FRAME(4, 8),
     ANIMCMD_FRAME(3, 8),
@@ -131,7 +117,7 @@ static const union AnimCmd gSpriteAnim_858E510[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd gSpriteAnim_858E528[] =
+static const union AnimCmd sAnim_VineDropRight[] =
 {
     ANIMCMD_FRAME(0, 8, .hFlip = TRUE),
     ANIMCMD_FRAME(1, 8, .hFlip = TRUE),
@@ -141,7 +127,7 @@ static const union AnimCmd gSpriteAnim_858E528[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd gSpriteAnim_858E540[] =
+static const union AnimCmd sAnim_VineRiseRight[] =
 {
     ANIMCMD_FRAME(4, 8, .hFlip = TRUE),
     ANIMCMD_FRAME(3, 8, .hFlip = TRUE),
@@ -151,7 +137,7 @@ static const union AnimCmd gSpriteAnim_858E540[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd gSpriteAnim_858E558[] =
+static const union AnimCmd sAnim_SecretPowerShrub[] =
 {
     ANIMCMD_FRAME(0, 8),
     ANIMCMD_FRAME(1, 8),
@@ -161,88 +147,89 @@ static const union AnimCmd gSpriteAnim_858E558[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd *const gSpriteAnimTable_858E570[] =
+static const union AnimCmd *const sAnimTable_SecretPowerCave[] =
 {
-    gSpriteAnim_858E4E0,
+    sAnim_SecretPowerCave,
 };
 
-static const union AnimCmd *const gSpriteAnimTable_858E574[] =
+static const union AnimCmd *const sAnimTable_SecretPowerTree[] =
 {
-    gSpriteAnim_858E4F8,
-    gSpriteAnim_858E510,
-    gSpriteAnim_858E528,
-    gSpriteAnim_858E540,
+    sAnim_VineDropLeft,
+    sAnim_VineRiseLeft,
+    sAnim_VineDropRight,
+    sAnim_VineRiseRight,
 };
 
-static const union AnimCmd *const gSpriteAnimTable_858E584[] =
+static const union AnimCmd *const sAnimTable_SecretPowerShrub[] =
 {
-    gSpriteAnim_858E558,
+    sAnim_SecretPowerShrub,
 };
 
-static const struct SpriteFrameImage gUnknown_858E588[] =
+static const struct SpriteFrameImage sPicTable_SecretPowerCave[] =
 {
-    {gSpriteImage_858D978, 0x80},
-    {gSpriteImage_858D9F8, 0x80},
-    {gSpriteImage_858DA78, 0x80},
-    {gSpriteImage_858DAF8, 0x80},
-    {gSpriteImage_858DB78, 0x80},
+    overworld_frame(sSecretPowerCave_Gfx, 2, 2, 0),
+    overworld_frame(sSecretPowerCave_Gfx, 2, 2, 1),
+    overworld_frame(sSecretPowerCave_Gfx, 2, 2, 2),
+    overworld_frame(sSecretPowerCave_Gfx, 2, 2, 3),
+    overworld_frame(sSecretPowerCave_Gfx, 2, 2, 4),
 };
 
-static const struct SpriteFrameImage gUnknown_858E5B0[] =
+static const struct SpriteFrameImage sPicTable_SecretPowerTree[] =
 {
-    {gSpriteImage_858DEB8, 0x80},
-    {gSpriteImage_858DF38, 0x80},
-    {gSpriteImage_858DFB8, 0x80},
-    {gSpriteImage_858E038, 0x80},
-    {gSpriteImage_858E0B8, 0x80},
+    overworld_frame(sSecretPowerTree_Gfx, 2, 2, 0),
+    overworld_frame(sSecretPowerTree_Gfx, 2, 2, 1),
+    overworld_frame(sSecretPowerTree_Gfx, 2, 2, 2),
+    overworld_frame(sSecretPowerTree_Gfx, 2, 2, 3),
+    overworld_frame(sSecretPowerTree_Gfx, 2, 2, 4),
+    // 6th frame exists but isnt accessed, the tree vine metatile is used instead
 };
 
-static const struct SpriteFrameImage gUnknown_858E5D8[] =
+static const struct SpriteFrameImage sPicTable_SecretPowerShrub[] =
 {
-    {gSpriteImage_858DC38, 0x80},
-    {gSpriteImage_858DCB8, 0x80},
-    {gSpriteImage_858DD38, 0x80},
-    {gSpriteImage_858DDB8, 0x80},
-    {gSpriteImage_858DE38, 0x80},
+    overworld_frame(sSecretPowerShrub_Gfx, 2, 2, 0),
+    overworld_frame(sSecretPowerShrub_Gfx, 2, 2, 1),
+    overworld_frame(sSecretPowerShrub_Gfx, 2, 2, 2),
+    overworld_frame(sSecretPowerShrub_Gfx, 2, 2, 3),
+    overworld_frame(sSecretPowerShrub_Gfx, 2, 2, 4),
 };
 
-static const struct SpriteTemplate gUnknown_0858E600 =
+static const struct SpriteTemplate sSpriteTemplate_SecretPowerCave =
 {
     .tileTag = 0xFFFF,
     .paletteTag = FLDEFF_PAL_TAG_3,
-    .oam = &gOamData_858E4D8,
-    .anims = gSpriteAnimTable_858E570,
-    .images = gUnknown_858E588,
+    .oam = &sOam_SecretPower,
+    .anims = sAnimTable_SecretPowerCave,
+    .images = sPicTable_SecretPowerCave,
     .affineAnims = gDummySpriteAffineAnimTable,
-    .callback = CaveEntranceSpriteCallback1,
+    .callback = SpriteCB_CaveEntranceInit,
 };
 
-static const struct SpriteTemplate gUnknown_0858E618 =
+static const struct SpriteTemplate sSpriteTemplate_SecretPowerTree =
 {
     .tileTag = 0xFFFF,
     .paletteTag = FLDEFF_PAL_TAG_8,
-    .oam = &gOamData_858E4D8,
-    .anims = gSpriteAnimTable_858E574,
-    .images = gUnknown_858E5B0,
+    .oam = &sOam_SecretPower,
+    .anims = sAnimTable_SecretPowerTree,
+    .images = sPicTable_SecretPowerTree,
     .affineAnims = gDummySpriteAffineAnimTable,
-    .callback = TreeEntranceSpriteCallback1,
+    .callback = SpriteCB_TreeEntranceInit,
 };
 
-static const struct SpriteTemplate gUnknown_0858E630 =
+static const struct SpriteTemplate sSpriteTemplate_SecretPowerShrub =
 {
     .tileTag = 0xFFFF,
     .paletteTag = FLDEFF_PAL_TAG_8,
-    .oam = &gOamData_858E4D8,
-    .anims = gSpriteAnimTable_858E584,
-    .images = gUnknown_858E5D8,
+    .oam = &sOam_SecretPower,
+    .anims = sAnimTable_SecretPowerShrub,
+    .images = sPicTable_SecretPowerShrub,
     .affineAnims = gDummySpriteAffineAnimTable,
-    .callback = ShrubEntranceSpriteCallback1,
+    .callback = SpriteCB_ShrubEntranceInit,
 };
 
-const struct SpritePalette gFieldEffectObjectPaletteInfo7 = {gFieldEffectObjectPalette7, FLDEFF_PAL_TAG_3};
-const struct SpritePalette gFieldEffectObjectPaletteInfo8 = {gFieldEffectObjectPalette8, FLDEFF_PAL_TAG_8};
+const struct SpritePalette gSpritePalette_SecretPower_Cave = {sSecretPowerCave_Pal, FLDEFF_PAL_TAG_3};
+const struct SpritePalette gSpritePalette_SecretPower_Plant = {sSecretPowerPlant_Pal, FLDEFF_PAL_TAG_8};
 
-static const struct OamData gOamData_858E658 =
+static const struct OamData sOam_SandPillar =
 {
     .x = 0,
     .y = 0,
@@ -254,7 +241,7 @@ static const struct OamData gOamData_858E658 =
     .priority = 2,
 };
 
-static const union AnimCmd gSpriteAnim_858E660[] =
+static const union AnimCmd sAnim_SandPillar[] =
 {
     ANIMCMD_FRAME(0, 6),
     ANIMCMD_FRAME(1, 6),
@@ -262,47 +249,45 @@ static const union AnimCmd gSpriteAnim_858E660[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd *const gSpriteAnimTable_858E670[] =
+static const union AnimCmd *const sAnimTable_SandPillar[] =
 {
-    gSpriteAnim_858E660,
+    sAnim_SandPillar,
 };
 
-static const struct SpriteFrameImage gUnknown_0858E674[] =
+static const struct SpriteFrameImage sPicTable_SandPillar[] =
 {
-    {gSpriteImage_858E1D8, 0x100},
-    {gSpriteImage_858E2D8, 0x100},
-    {gSpriteImage_858E3D8, 0x100},
+    {sSandPillar0_Gfx, 0x100},
+    {sSandPillar1_Gfx, 0x100},
+    {sSandPillar2_Gfx, 0x100},
 };
 
-static const struct SpriteTemplate gUnknown_0858E68C =
+static const struct SpriteTemplate sSpriteTemplate_SandPillar =
 {
     .tileTag = 0xFFFF,
     .paletteTag = FLDEFF_PAL_TAG_14,
-    .oam = &gOamData_858E658,
-    .anims = gSpriteAnimTable_858E670,
-    .images = gUnknown_0858E674,
+    .oam = &sOam_SandPillar,
+    .anims = sAnimTable_SandPillar,
+    .images = sPicTable_SandPillar,
     .affineAnims = gDummySpriteAffineAnimTable,
-    .callback = SpriteCB_SandPillar_0,
+    .callback = SpriteCB_SandPillar_BreakTop,
 };
 
 // This uses one of the secret base palettes, so there is no "graphics/field_effects/palettes/09.pal" file.
-const struct SpritePalette gFieldEffectObjectPaletteInfo9 = {gTilesetPalettes_SecretBase[5], FLDEFF_PAL_TAG_14};
+const struct SpritePalette gSpritePalette_SandPillar = {gTilesetPalettes_SecretBase[5], FLDEFF_PAL_TAG_14};
 
-static const u8 gSpriteImage_858E6AC[] = INCBIN_U8("graphics/unknown/858E84C/0.4bpp");
-static const u8 gSpriteImage_858E72C[] = INCBIN_U8("graphics/unknown/858E84C/1.4bpp");
-static const u8 gSpriteImage_858E7AC[] = INCBIN_U8("graphics/unknown/858E84C/2.4bpp");
-static const u16 gUnknown_0858E82C[] = INCBIN_U16("graphics/unknown/unknown_58E82C.gbapal");
+static const u8 sRecordMixLights_Gfx[] = INCBIN_U8("graphics/field_effects/pics/record_mix_lights.4bpp");
+static const u16 sRecordMixLights_Pal[] = INCBIN_U16("graphics/field_effects/palettes/record_mix_lights.gbapal");
 
-static const struct SpriteFrameImage gUnknown_0858E84C[] =
+static const struct SpriteFrameImage sPicTable_RecordMixLights[] =
 {
-    {gSpriteImage_858E6AC, sizeof(gSpriteImage_858E6AC)},
-    {gSpriteImage_858E72C, sizeof(gSpriteImage_858E72C)},
-    {gSpriteImage_858E7AC, sizeof(gSpriteImage_858E7AC)},
+    overworld_frame(sRecordMixLights_Gfx, 4, 1, 0),
+    overworld_frame(sRecordMixLights_Gfx, 4, 1, 1),
+    overworld_frame(sRecordMixLights_Gfx, 4, 1, 2),
 };
 
-static const struct SpritePalette gUnknown_0858E864 = {gUnknown_0858E82C, FLDEFF_PAL_TAG_0};
+static const struct SpritePalette sSpritePalette_RecordMixLights = {sRecordMixLights_Pal, FLDEFF_PAL_TAG_0};
 
-static const union AnimCmd gSpriteAnim_858E86C[] =
+static const union AnimCmd sAnim_RecordMixLights[] =
 {
     ANIMCMD_FRAME(0, 30),
     ANIMCMD_FRAME(1, 30),
@@ -310,173 +295,182 @@ static const union AnimCmd gSpriteAnim_858E86C[] =
     ANIMCMD_JUMP(0),
 };
 
-static const union AnimCmd *const gSpriteAnimTable_858E87C[] =
+static const union AnimCmd *const sAnimTable_RecordMixLights[] =
 {
-    gSpriteAnim_858E86C,
+    sAnim_RecordMixLights,
 };
 
-static const struct SpriteTemplate gUnknown_0858E880 =
+static const struct SpriteTemplate sSpriteTemplate_RecordMixLights =
 {
     .tileTag = 0xFFFF,
     .paletteTag = FLDEFF_PAL_TAG_0,
     .oam = &gObjectEventBaseOam_32x8,
-    .anims = gSpriteAnimTable_858E87C,
-    .images = gUnknown_0858E84C,
+    .anims = sAnimTable_RecordMixLights,
+    .images = sPicTable_RecordMixLights,
     .affineAnims = gDummySpriteAffineAnimTable,
     .callback = SpriteCallbackDummy,
 };
 
-void sub_80F9BCC(u16 a0, u16 a1, u8 a2)
+// For accessing pokemon storage PC or the Hall of Fame PC
+void ComputerScreenOpenEffect(u16 increment, u16 unused, u8 priority)
 {
-    sub_80F9C44(sub_80F9C90, a0, a1, a2);
+    CreateComputerScreenEffectTask(Task_ComputerScreenOpenEffect, increment, unused, priority);
 }
 
-void sub_80F9BF4(u16 a0, u16 a1, u8 a2)
+void ComputerScreenCloseEffect(u16 increment, u16 unused, u8 priority)
 {
-    sub_80F9C44(sub_80F9DFC, a0, a1, a2);
+    CreateComputerScreenEffectTask(Task_ComputerScreenCloseEffect, increment, unused, priority);
 }
 
-bool8 sub_80F9C1C(void)
+bool8 IsComputerScreenOpenEffectActive(void)
 {
-    return FuncIsActiveTask(sub_80F9C90);
+    return FuncIsActiveTask(Task_ComputerScreenOpenEffect);
 }
 
-bool8 sub_80F9C30(void)
+bool8 IsComputerScreenCloseEffectActive(void)
 {
-    return FuncIsActiveTask(sub_80F9DFC);
+    return FuncIsActiveTask(Task_ComputerScreenCloseEffect);
 }
 
-static void sub_80F9C44(void (*taskfunc) (u8), u16 a1, u16 a2, u8 a3)
+#define tState         data[0]
+#define tHorzIncrement data[1]
+#define tVertIncrement data[2]
+#define tWinLeft       data[3]
+#define tWinRight      data[4]
+#define tWinTop        data[5]
+#define tWinBottom     data[6]
+#define tBlendCnt      data[7]
+#define tBlendY        data[8]
+
+static void CreateComputerScreenEffectTask(void (*taskfunc) (u8), u16 increment, u16 unused, u8 priority)
 {
-    u8 taskId = CreateTask(taskfunc, a3);
+    u8 taskId = CreateTask(taskfunc, priority);
 
-    gTasks[taskId].data[0] = 0;
-    gTasks[taskId].data[1] = a1 == 0 ? 16 : a1;
-    gTasks[taskId].data[2] = a1 == 0 ? 20 : a1;
+    gTasks[taskId].tState = 0;
+    gTasks[taskId].tHorzIncrement = increment == 0 ? 16 : increment;
+    gTasks[taskId].tVertIncrement = increment == 0 ? 20 : increment;
     gTasks[taskId].func(taskId);
 }
 
-static void sub_80F9C90(u8 taskId)
+static void Task_ComputerScreenOpenEffect(u8 taskId)
 {
     struct Task *task = &gTasks[taskId];
 
-    switch (task->data[0])
+    switch (task->tState)
     {
     case 0:
-        task->data[3] = 0x78;
-        task->data[4] = 0x78;
-        task->data[5] = 0x50;
-        task->data[6] = 0x51;
+        task->tWinLeft = DISPLAY_WIDTH / 2;
+        task->tWinRight = DISPLAY_WIDTH / 2;
+        task->tWinTop = DISPLAY_HEIGHT / 2;
+        task->tWinBottom = DISPLAY_HEIGHT / 2 + 1;
 
         SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON);
-        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4]));
-        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6]));
-        SetGpuReg(REG_OFFSET_WININ, 0x3F);
+        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->tWinLeft, task->tWinRight));
+        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->tWinTop, task->tWinBottom));
+        SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR);
         SetGpuReg(REG_OFFSET_WINOUT, 0);
 
         break;
     case 1:
-        task->data[7] = GetGpuReg(REG_OFFSET_BLDCNT);
-        task->data[8] = GetGpuReg(REG_OFFSET_BLDY);
+        task->tBlendCnt = GetGpuReg(REG_OFFSET_BLDCNT);
+        task->tBlendY = GetGpuReg(REG_OFFSET_BLDY);
 
         SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_ALL | BLDCNT_EFFECT_LIGHTEN);
-        SetGpuReg(REG_OFFSET_BLDY, 0x10);
+        SetGpuReg(REG_OFFSET_BLDY, 16);
 
         break;
     case 2:
-        task->data[3] -= task->data[1];
-        task->data[4] += task->data[1];
+        task->tWinLeft -= task->tHorzIncrement;
+        task->tWinRight += task->tHorzIncrement;
 
-        if (task->data[3] < 1 || task->data[4] > 0xEF)
+        if (task->tWinLeft < 1 || task->tWinRight > DISPLAY_WIDTH - 1)
         {
-            task->data[3] = 0;
-            task->data[4] = 0xF0;
+            task->tWinLeft = 0;
+            task->tWinRight = DISPLAY_WIDTH;
             SetGpuReg(REG_OFFSET_BLDY, 0);
-            SetGpuReg(REG_OFFSET_BLDCNT, task->data[7]);
+            SetGpuReg(REG_OFFSET_BLDCNT, task->tBlendCnt);
             BlendPalettes(0xFFFFFFFF, 0, 0);
             gPlttBufferFaded[0] = 0;
         }
-        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4]));
+        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->tWinLeft, task->tWinRight));
 
-        if (task->data[3] != 0)
+        if (task->tWinLeft != 0)
             return;
         break;
     case 3:
-        task->data[5] -= task->data[2];
-        task->data[6] += task->data[2];
+        task->tWinTop -= task->tVertIncrement;
+        task->tWinBottom += task->tVertIncrement;
 
-        if (task->data[5] < 1 || task->data[6] > 0x9F)
+        if (task->tWinTop < 1 || task->tWinBottom > DISPLAY_HEIGHT - 1)
         {
-            task->data[5] = 0;
-            task->data[6] = 0xA0;
+            task->tWinTop = 0;
+            task->tWinBottom = DISPLAY_HEIGHT;
             ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON);
         }
-        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6]));
+        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->tWinTop, task->tWinBottom));
 
-        if (task->data[5] != 0)
+        if (task->tWinTop != 0)
             return;
         break;
     default:
-        SetGpuReg(REG_OFFSET_BLDCNT, task->data[7]);
+        SetGpuReg(REG_OFFSET_BLDCNT, task->tBlendCnt);
         DestroyTask(taskId);
         return;
     }
-    task->data[0]++;
+    task->tState++;
 }
 
-static void sub_80F9DFC(u8 taskId)
+static void Task_ComputerScreenCloseEffect(u8 taskId)
 {
     struct Task *task = &gTasks[taskId];
 
-    int temp = task->data[0];
-
-    switch (temp)
+    switch (task->tState)
     {
     case 0:
-        gPlttBufferFaded[0] = temp;
+        gPlttBufferFaded[0] = 0;
         break;
     case 1:
-        task->data[3] = 0;
-        task->data[4] = 0xF0;
-        task->data[5] = 0;
-        task->data[6] = 0xA0;
+        task->tWinLeft = 0;
+        task->tWinRight = DISPLAY_WIDTH;
+        task->tWinTop = 0;
+        task->tWinBottom = DISPLAY_HEIGHT;
 
         SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON);
-        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4]));
-        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6]));
-        SetGpuReg(REG_OFFSET_WININ, 0x3F);
+        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->tWinLeft, task->tWinRight));
+        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->tWinTop, task->tWinBottom));
+        SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR);
         SetGpuReg(REG_OFFSET_WINOUT, 0);
         break;
     case 2:
-        task->data[5] += task->data[2];
-        task->data[6] -= task->data[2];
+        task->tWinTop += task->tVertIncrement;
+        task->tWinBottom -= task->tVertIncrement;
 
-        if (task->data[5] > 0x4F || task->data[6] < 0x52)
+        if (task->tWinTop >= DISPLAY_HEIGHT / 2 || task->tWinBottom <= DISPLAY_HEIGHT / 2 + 1)
         {
-            task->data[5] = 0x50;
-            task->data[6] = 0x51;
+            task->tWinTop = DISPLAY_HEIGHT / 2;
+            task->tWinBottom = DISPLAY_HEIGHT / 2 + 1;
             SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_ALL | BLDCNT_EFFECT_LIGHTEN);
-            SetGpuReg(REG_OFFSET_BLDY, 0x10);
+            SetGpuReg(REG_OFFSET_BLDY, 16);
         }
-        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6]));
+        SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->tWinTop, task->tWinBottom));
 
-        if (task->data[5] != 0x50)
+        if (task->tWinTop != DISPLAY_HEIGHT / 2)
             return;
         break;
     case 3:
-        task->data[3] += task->data[1];
-        task->data[4] -= task->data[1];
+        task->tWinLeft += task->tHorzIncrement;
+        task->tWinRight -= task->tHorzIncrement;
 
-        if (task->data[3] > 0x77 || task->data[4] < 0x79)
+        if (task->tWinLeft >= DISPLAY_WIDTH / 2 || task->tWinRight <= DISPLAY_WIDTH / 2)
         {
-            task->data[3] = 0x78;
-            task->data[4] = 0x78;
-            BlendPalettes(-1, 0x10, 0);
+            task->tWinLeft = DISPLAY_WIDTH / 2;
+            task->tWinRight = DISPLAY_WIDTH / 2;
+            BlendPalettes(-1, 16, 0);
             gPlttBufferFaded[0] = 0;
         }
-        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4]));
+        SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->tWinLeft, task->tWinRight));
 
-        if (task->data[3] != 0x78)
+        if (task->tWinLeft != DISPLAY_WIDTH / 2)
             return;
         break;
     default:
@@ -486,9 +480,19 @@ static void sub_80F9DFC(u8 taskId)
         DestroyTask(taskId);
         return;
     }
-    task->data[0]++;
+    task->tState++;
 }
 
+#undef tState
+#undef tHorzIncrement
+#undef tVertIncrement
+#undef tWinLeft
+#undef tWinRight
+#undef tWinTop
+#undef tWinBottom
+#undef tBlendCnt
+#undef tBlendY
+
 static void SetCurrentSecretBase(void)
 {
     SetCurSecretBaseIdFromPosition(&gPlayerFacingPosition, gMapHeader.events);
@@ -607,22 +611,22 @@ static void StartSecretBaseCaveFieldEffect(void)
 bool8 FldEff_SecretPowerCave(void)
 {
     AdjustSecretPowerSpritePixelOffsets();
-    CreateSprite(&gUnknown_0858E600,
+    CreateSprite(&sSpriteTemplate_SecretPowerCave,
                  gSprites[gPlayerAvatar.spriteId].oam.x + gFieldEffectArguments[5],
                  gSprites[gPlayerAvatar.spriteId].oam.y + gFieldEffectArguments[6],
                  148);
     return FALSE;
 }
 
-static void CaveEntranceSpriteCallback1(struct Sprite *sprite)
+static void SpriteCB_CaveEntranceInit(struct Sprite *sprite)
 {
     PlaySE(SE_W088);
 
     sprite->data[0] = 0;
-    sprite->callback = CaveEntranceSpriteCallback2;
+    sprite->callback = SpriteCB_CaveEntranceOpen;
 }
 
-static void CaveEntranceSpriteCallback2(struct Sprite *sprite)
+static void SpriteCB_CaveEntranceOpen(struct Sprite *sprite)
 {
     if (sprite->data[0] < 40)
     {
@@ -632,11 +636,11 @@ static void CaveEntranceSpriteCallback2(struct Sprite *sprite)
     else
     {
         sprite->data[0] = 0;
-        sprite->callback = CaveEntranceSpriteCallbackEnd;
+        sprite->callback = SpriteCB_CaveEntranceEnd;
     }
 }
 
-static void CaveEntranceSpriteCallbackEnd(struct Sprite *sprite)
+static void SpriteCB_CaveEntranceEnd(struct Sprite *sprite)
 {
     FieldEffectStop(sprite, FLDEFF_SECRET_POWER_CAVE);
     EnableBothScriptContexts();
@@ -676,7 +680,7 @@ bool8 FldEff_SecretPowerTree(void)
 
     AdjustSecretPowerSpritePixelOffsets();
 
-    CreateSprite(&gUnknown_0858E618,
+    CreateSprite(&sSpriteTemplate_SecretPowerTree,
                  gSprites[gPlayerAvatar.spriteId].oam.x + gFieldEffectArguments[5],
                  gSprites[gPlayerAvatar.spriteId].oam.y + gFieldEffectArguments[6],
                  148);
@@ -687,16 +691,16 @@ bool8 FldEff_SecretPowerTree(void)
     return FALSE;
 }
 
-static void TreeEntranceSpriteCallback1(struct Sprite *sprite)
+static void SpriteCB_TreeEntranceInit(struct Sprite *sprite)
 {
     PlaySE(SE_W010);
 
     sprite->animNum = gFieldEffectArguments[7];
     sprite->data[0] = 0;
-    sprite->callback = TreeEntranceSpriteCallback2;
+    sprite->callback = SpriteCB_TreeEntranceOpen;
 }
 
-static void TreeEntranceSpriteCallback2(struct Sprite *sprite)
+static void SpriteCB_TreeEntranceOpen(struct Sprite *sprite)
 {
     sprite->data[0]++;
 
@@ -706,11 +710,11 @@ static void TreeEntranceSpriteCallback2(struct Sprite *sprite)
             ToggleSecretBaseEntranceMetatile();
 
         sprite->data[0] = 0;
-        sprite->callback = TreeEntranceSpriteCallbackEnd;
+        sprite->callback = SpriteCB_TreeEntranceEnd;
     }
 }
 
-static void TreeEntranceSpriteCallbackEnd(struct Sprite *sprite)
+static void SpriteCB_TreeEntranceEnd(struct Sprite *sprite)
 {
     FieldEffectStop(sprite, FLDEFF_SECRET_POWER_TREE);
     EnableBothScriptContexts();
@@ -742,7 +746,7 @@ bool8 FldEff_SecretPowerShrub(void)
 {
     AdjustSecretPowerSpritePixelOffsets();
 
-    CreateSprite(&gUnknown_0858E630,
+    CreateSprite(&sSpriteTemplate_SecretPowerShrub,
                  gSprites[gPlayerAvatar.spriteId].oam.x + gFieldEffectArguments[5],
                  gSprites[gPlayerAvatar.spriteId].oam.y + gFieldEffectArguments[6],
                  148);
@@ -750,15 +754,15 @@ bool8 FldEff_SecretPowerShrub(void)
     return FALSE;
 }
 
-static void ShrubEntranceSpriteCallback1(struct Sprite *sprite)
+static void SpriteCB_ShrubEntranceInit(struct Sprite *sprite)
 {
     PlaySE(SE_W077);
 
     sprite->data[0] = 0;
-    sprite->callback = ShrubEntranceSpriteCallback2;
+    sprite->callback = SpriteCB_ShrubEntranceOpen;
 }
 
-static void ShrubEntranceSpriteCallback2(struct Sprite *sprite)
+static void SpriteCB_ShrubEntranceOpen(struct Sprite *sprite)
 {
     if (sprite->data[0] < 40)
     {
@@ -770,16 +774,20 @@ static void ShrubEntranceSpriteCallback2(struct Sprite *sprite)
     else
     {
         sprite->data[0] = 0;
-        sprite->callback = ShrubEntranceSpriteCallbackEnd;
+        sprite->callback = SpriteCB_ShrubEntranceEnd;
     }
 }
 
-static void ShrubEntranceSpriteCallbackEnd(struct Sprite *sprite)
+static void SpriteCB_ShrubEntranceEnd(struct Sprite *sprite)
 {
     FieldEffectStop(sprite, FLDEFF_SECRET_POWER_SHRUB);
     EnableBothScriptContexts();
 }
 
+#define tX     data[0]
+#define tY     data[1]
+#define tState data[2]
+
 bool8 FldEff_SecretBasePCTurnOn(void)
 {
     s16 x, y;
@@ -788,9 +796,9 @@ bool8 FldEff_SecretBasePCTurnOn(void)
     GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
 
     taskId = CreateTask(Task_SecretBasePCTurnOn, 0);
-    gTasks[taskId].data[0] = x;
-    gTasks[taskId].data[1] = y;
-    gTasks[taskId].data[2] = 0;
+    gTasks[taskId].tX = x;
+    gTasks[taskId].tY = y;
+    gTasks[taskId].tState = 0;
 
     return FALSE;
 }
@@ -799,30 +807,34 @@ static void Task_SecretBasePCTurnOn(u8 taskId)
 {
     s16 *data = gTasks[taskId].data;
 
-    switch (data[2])
+    switch (tState)
     {
     case 4:
     case 12:
-        MapGridSetMetatileIdAt(data[0], data[1], METATILE_SecretBase_PC_On);
-        CurrentMapDrawMetatileAt(data[0], data[1]);
+        MapGridSetMetatileIdAt(tX, tY, METATILE_SecretBase_PC_On);
+        CurrentMapDrawMetatileAt(tX, tY);
         break;
     case 8:
     case 16:
-        MapGridSetMetatileIdAt(data[0], data[1], METATILE_SecretBase_PC);
-        CurrentMapDrawMetatileAt(data[0], data[1]);
+        MapGridSetMetatileIdAt(tX, tY, METATILE_SecretBase_PC);
+        CurrentMapDrawMetatileAt(tX, tY);
         break;
     case 20:
-        MapGridSetMetatileIdAt(data[0], data[1], METATILE_SecretBase_PC_On);
-        CurrentMapDrawMetatileAt(data[0], data[1]);
+        MapGridSetMetatileIdAt(tX, tY, METATILE_SecretBase_PC_On);
+        CurrentMapDrawMetatileAt(tX, tY);
         FieldEffectActiveListRemove(FLDEFF_PCTURN_ON);
         EnableBothScriptContexts();
         DestroyTask(taskId);
         return;
     }
 
-    data[2]++;
+    tState++;
 }
 
+#undef tX
+#undef tY
+#undef tState
+
 void DoSecretBasePCTurnOffEffect(void)
 {
     s16 x, y;
@@ -892,12 +904,12 @@ static void DoBalloonSoundEffect(s16 metatileId)
     }
 }
 
-bool8 FldEff_NopA6FC(void)
+bool8 FldEff_Nop47(void)
 {
     return FALSE;
 }
 
-bool8 FldEff_NopA700(void)
+bool8 FldEff_Nop48(void)
 {
     return FALSE;
 }
@@ -1034,7 +1046,7 @@ bool8 FldEff_SandPillar(void)
     switch (GetPlayerFacingDirection())
     {
     case DIR_SOUTH:
-        CreateSprite(&gUnknown_0858E68C,
+        CreateSprite(&sSpriteTemplate_SandPillar,
                      gSprites[gPlayerAvatar.spriteId].oam.x + 8,
                      gSprites[gPlayerAvatar.spriteId].oam.y + 32,
                      0);
@@ -1042,7 +1054,7 @@ bool8 FldEff_SandPillar(void)
         break;
 
     case DIR_NORTH:
-        CreateSprite(&gUnknown_0858E68C,
+        CreateSprite(&sSpriteTemplate_SandPillar,
                      gSprites[gPlayerAvatar.spriteId].oam.x + 8,
                      gSprites[gPlayerAvatar.spriteId].oam.y,
                      148);
@@ -1050,7 +1062,7 @@ bool8 FldEff_SandPillar(void)
         break;
 
     case DIR_WEST:
-        CreateSprite(&gUnknown_0858E68C,
+        CreateSprite(&sSpriteTemplate_SandPillar,
                      gSprites[gPlayerAvatar.spriteId].oam.x - 8,
                      gSprites[gPlayerAvatar.spriteId].oam.y + 16,
                      148);
@@ -1058,7 +1070,7 @@ bool8 FldEff_SandPillar(void)
         break;
 
     case DIR_EAST:
-        CreateSprite(&gUnknown_0858E68C,
+        CreateSprite(&sSpriteTemplate_SandPillar,
                      gSprites[gPlayerAvatar.spriteId].oam.x + 24,
                      gSprites[gPlayerAvatar.spriteId].oam.y + 16,
                      148);
@@ -1069,7 +1081,7 @@ bool8 FldEff_SandPillar(void)
     return FALSE;
 }
 
-static void SpriteCB_SandPillar_0(struct Sprite *sprite)
+static void SpriteCB_SandPillar_BreakTop(struct Sprite *sprite)
 {
     PlaySE(SE_W088);
 
@@ -1083,10 +1095,10 @@ static void SpriteCB_SandPillar_0(struct Sprite *sprite)
     CurrentMapDrawMetatileAt(gFieldEffectArguments[5], gFieldEffectArguments[6]);
 
     sprite->data[0] = 0;
-    sprite->callback = SpriteCB_SandPillar_1;
+    sprite->callback = SpriteCB_SandPillar_BreakBase;
 }
 
-static void SpriteCB_SandPillar_1(struct Sprite *sprite)
+static void SpriteCB_SandPillar_BreakBase(struct Sprite *sprite)
 {
     if (sprite->data[0] < 18)
     {
@@ -1097,11 +1109,11 @@ static void SpriteCB_SandPillar_1(struct Sprite *sprite)
         MapGridSetMetatileIdAt(gFieldEffectArguments[5], gFieldEffectArguments[6], METATILE_SecretBase_SandOrnament_BrokenBase | METATILE_COLLISION_MASK);
         CurrentMapDrawMetatileAt(gFieldEffectArguments[5], gFieldEffectArguments[6]);
         sprite->data[0] = 0;
-        sprite->callback = SpriteCB_SandPillar_2;
+        sprite->callback = SpriteCB_SandPillar_End;
     }
 }
 
-static void SpriteCB_SandPillar_2(struct Sprite *sprite)
+static void SpriteCB_SandPillar_End(struct Sprite *sprite)
 {
     FieldEffectStop(sprite, FLDEFF_SAND_PILLAR);
     EnableBothScriptContexts();
@@ -1167,12 +1179,13 @@ void InteractWithShieldOrTVDecoration(void)
     }
 }
 
-bool8 sub_80FADE4(u16 metatileId, u8 arg1)
+// As opposed to a small one (single metatile) like the balloons
+bool8 IsLargeBreakableDecoration(u16 metatileId, bool8 checkBase)
 {
     if (!CurMapIsSecretBase())
         return FALSE;
 
-    if (!arg1)
+    if (!checkBase)
     {
         if (metatileId == METATILE_SecretBase_SandOrnament_Top || metatileId == METATILE_SecretBase_SandOrnament_TopWall)
             return TRUE;
@@ -1224,25 +1237,26 @@ bool32 FldEffPoison_IsActive(void)
     return FuncIsActiveTask(Task_FieldPoisonEffect);
 }
 
-static void Task_WateringBerryTreeAnim_0(u8 taskId)
+static void Task_WateringBerryTreeAnim(u8 taskId)
 {
-    gTasks[taskId].func = Task_WateringBerryTreeAnim_1;
+    gTasks[taskId].func = Task_WateringBerryTreeAnim_Start;
 }
 
-static void Task_WateringBerryTreeAnim_1(u8 taskId)
+static void Task_WateringBerryTreeAnim_Start(u8 taskId)
 {
     struct ObjectEvent *playerObjEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
 
     if (!ObjectEventIsMovementOverridden(playerObjEvent)
         || ObjectEventClearHeldMovementIfFinished(playerObjEvent))
     {
+        // Start watering
         SetPlayerAvatarWatering(GetPlayerFacingDirection());
         ObjectEventSetHeldMovement(playerObjEvent, GetWalkInPlaceNormalMovementAction(GetPlayerFacingDirection()));
-        gTasks[taskId].func = Task_WateringBerryTreeAnim_2;
+        gTasks[taskId].func = Task_WateringBerryTreeAnim_Continue;
     }
 }
 
-static void Task_WateringBerryTreeAnim_2(u8 taskId)
+static void Task_WateringBerryTreeAnim_Continue(u8 taskId)
 {
     struct ObjectEvent *playerObjEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
 
@@ -1250,15 +1264,15 @@ static void Task_WateringBerryTreeAnim_2(u8 taskId)
     {
         s16 value = gTasks[taskId].data[1]++;
 
+        // Continue holding watering action 10 times, then end
         if (value < 10)
             ObjectEventSetHeldMovement(playerObjEvent, GetWalkInPlaceNormalMovementAction(GetPlayerFacingDirection()));
-
         else
-            gTasks[taskId].func = Task_WateringBerryTreeAnim_3;
+            gTasks[taskId].func = Task_WateringBerryTreeAnim_End;
     }
 }
 
-static void Task_WateringBerryTreeAnim_3(u8 taskId)
+static void Task_WateringBerryTreeAnim_End(u8 taskId)
 {
     SetPlayerAvatarTransitionFlags(GetPlayerAvatarFlags());
     DestroyTask(taskId);
@@ -1267,16 +1281,17 @@ static void Task_WateringBerryTreeAnim_3(u8 taskId)
 
 void DoWateringBerryTreeAnim(void)
 {
-    CreateTask(Task_WateringBerryTreeAnim_0, 80);
+    CreateTask(Task_WateringBerryTreeAnim, 80);
 }
 
-u8 CreateRecordMixingSprite(void)
+// The lights that blink on the counter when mixing records in the cable club
+u8 CreateRecordMixingLights(void)
 {
     u8 spriteId;
 
-    LoadSpritePalette(&gUnknown_0858E864);
+    LoadSpritePalette(&sSpritePalette_RecordMixLights);
 
-    spriteId = CreateSprite(&gUnknown_0858E880, 0, 0, 82);
+    spriteId = CreateSprite(&sSpriteTemplate_RecordMixLights, 0, 0, 82);
 
     if (spriteId == MAX_SPRITES)
     {
@@ -1293,13 +1308,13 @@ u8 CreateRecordMixingSprite(void)
     return spriteId;
 }
 
-void DestroyRecordMixingSprite(void)
+void DestroyRecordMixingLights(void)
 {
     int i;
 
     for (i = 0; i < MAX_SPRITES; i++)
     {
-        if (gSprites[i].template == &gUnknown_0858E880)
+        if (gSprites[i].template == &sSpriteTemplate_RecordMixLights)
         {
             FreeSpritePalette(&gSprites[i]);
             DestroySprite(&gSprites[i]);
diff --git a/src/fldeff_rocksmash.c b/src/fldeff_rocksmash.c
index 4d7dcb66e..ec8e64012 100644
--- a/src/fldeff_rocksmash.c
+++ b/src/fldeff_rocksmash.c
@@ -20,13 +20,13 @@
 #include "constants/songs.h"
 
 // static functions
-static void Task_DoFieldMove_0(u8 taskId);
-static void Task_DoFieldMove_1(u8 taskId);
-static void Task_DoFieldMove_2(u8 taskId);
-static void Task_DoFieldMove_3(u8 taskId);
+static void Task_DoFieldMove_Init(u8 taskId);
+static void Task_DoFieldMove_ShowMonAfterPose(u8 taskId);
+static void Task_DoFieldMove_WaitForMon(u8 taskId);
+static void Task_DoFieldMove_RunFunc(u8 taskId);
 
 static void FieldCallback_RockSmash(void);
-static void sub_8135714(void);
+static void FieldMove_RockSmash(void);
 
 // text
 bool8 CheckObjectGraphicsInFrontOfPlayer(u8 graphicsId)
@@ -50,10 +50,10 @@ bool8 CheckObjectGraphicsInFrontOfPlayer(u8 graphicsId)
 u8 CreateFieldMoveTask(void)
 {
     GetXYCoordsOneStepInFrontOfPlayer(&gPlayerFacingPosition.x, &gPlayerFacingPosition.y);
-    return CreateTask(Task_DoFieldMove_0, 8);
+    return CreateTask(Task_DoFieldMove_Init, 8);
 }
 
-static void Task_DoFieldMove_0(u8 taskId)
+static void Task_DoFieldMove_Init(u8 taskId)
 {
     u8 objEventId;
 
@@ -65,28 +65,30 @@ static void Task_DoFieldMove_0(u8 taskId)
     {
         if (gMapHeader.mapType == MAP_TYPE_UNDERWATER)
         {
+            // Skip field move pose underwater
             FieldEffectStart(FLDEFF_FIELD_MOVE_SHOW_MON_INIT);
-            gTasks[taskId].func = Task_DoFieldMove_2;
+            gTasks[taskId].func = Task_DoFieldMove_WaitForMon;
         }
         else
         {
+            // Do field move pose
             SetPlayerAvatarFieldMove();
             ObjectEventSetHeldMovement(&gObjectEvents[objEventId], MOVEMENT_ACTION_START_ANIM_IN_DIRECTION);
-            gTasks[taskId].func = Task_DoFieldMove_1;
+            gTasks[taskId].func = Task_DoFieldMove_ShowMonAfterPose;
         }
     }
 }
 
-static void Task_DoFieldMove_1(u8 taskId)
+static void Task_DoFieldMove_ShowMonAfterPose(u8 taskId)
 {
     if (ObjectEventCheckHeldMovementStatus(&gObjectEvents[gPlayerAvatar.objectEventId]) == TRUE)
     {
         FieldEffectStart(FLDEFF_FIELD_MOVE_SHOW_MON_INIT);
-        gTasks[taskId].func = Task_DoFieldMove_2;
+        gTasks[taskId].func = Task_DoFieldMove_WaitForMon;
     }
 }
 
-static void Task_DoFieldMove_2(u8 taskId)
+static void Task_DoFieldMove_WaitForMon(u8 taskId)
 {
     if (!FieldEffectActiveListContains(FLDEFF_FIELD_MOVE_SHOW_MON))
     {
@@ -102,19 +104,22 @@ static void Task_DoFieldMove_2(u8 taskId)
         ObjectEventSetGraphicsId(&gObjectEvents[gPlayerAvatar.objectEventId], GetPlayerAvatarGraphicsIdByCurrentState());
         StartSpriteAnim(&gSprites[gPlayerAvatar.spriteId], gFieldEffectArguments[2]);
         FieldEffectActiveListRemove(FLDEFF_FIELD_MOVE_SHOW_MON);
-        gTasks[taskId].func = Task_DoFieldMove_3;
+        gTasks[taskId].func = Task_DoFieldMove_RunFunc;
     }
 }
 
-static void Task_DoFieldMove_3(u8 taskId)
+static void Task_DoFieldMove_RunFunc(u8 taskId)
 {
-    void (*func)(void) = (void (*)(void))(((u16)gTasks[taskId].data[8] << 16) | (u16)gTasks[taskId].data[9]);
+    // The function for the field move to do is stored in halves across data[8] and data[9]
+    void (*fieldMoveFunc)(void) = (void (*)(void))(((u16)gTasks[taskId].data[8] << 16) | (u16)gTasks[taskId].data[9]);
 
-    func();
+    fieldMoveFunc();
     gPlayerAvatar.preventStep = FALSE;
     DestroyTask(taskId);
 }
 
+// Called when Rock Smash is used from the party menu
+// For interacting with a smashable rock in the field, see EventScript_RockSmash
 bool8 SetUpFieldMove_RockSmash(void)
 {
     // In Ruby and Sapphire, Regirock's tomb is opened by using Strength. In Emerald,
@@ -141,20 +146,21 @@ bool8 SetUpFieldMove_RockSmash(void)
 static void FieldCallback_RockSmash(void)
 {
     gFieldEffectArguments[0] = GetCursorSelectionMonId();
-    ScriptContext1_SetupScript(EventScript_FldEffRockSmash);
+    ScriptContext1_SetupScript(EventScript_RockSmashFromPartyMenu);
 }
 
 bool8 FldEff_UseRockSmash(void)
 {
     u8 taskId = CreateFieldMoveTask();
 
-    gTasks[taskId].data[8] = (u32)sub_8135714 >> 16;
-    gTasks[taskId].data[9] = (u32)sub_8135714;
+    gTasks[taskId].data[8] = (u32)FieldMove_RockSmash >> 16;
+    gTasks[taskId].data[9] = (u32)FieldMove_RockSmash;
     IncrementGameStat(GAME_STAT_USED_ROCK_SMASH);
     return FALSE;
 }
 
-static void sub_8135714(void)
+// The actual rock smashing is handled by EventScript_SmashRock, so this function does very little
+static void FieldMove_RockSmash(void)
 {
     PlaySE(SE_W088);
     FieldEffectActiveListRemove(FLDEFF_USE_ROCK_SMASH);
diff --git a/src/hall_of_fame.c b/src/hall_of_fame.c
index 5405b7c42..b4745ff4e 100644
--- a/src/hall_of_fame.c
+++ b/src/hall_of_fame.c
@@ -799,7 +799,7 @@ void CB2_DoHallOfFamePC(void)
         {
             struct HallofFameTeam *fameTeam = (struct HallofFameTeam*)(gDecompressionBuffer);
             fameTeam->mon[0] = sDummyFameMon;
-            sub_80F9BCC(0, 0, 0);
+            ComputerScreenOpenEffect(0, 0, 0);
             SetVBlankCallback(VBlankCB_HallOfFame);
             gMain.state++;
         }
@@ -809,7 +809,7 @@ void CB2_DoHallOfFamePC(void)
         AnimateSprites();
         BuildOamBuffer();
         UpdatePaletteFade();
-        if (!sub_80F9C1C())
+        if (!IsComputerScreenOpenEffectActive())
             gMain.state++;
         break;
     case 5:
@@ -1023,13 +1023,13 @@ static void Task_HofPC_HandlePaletteOnExit(u8 taskId)
     CpuCopy16(gPlttBufferFaded, gPlttBufferUnfaded, 0x400);
     fameTeam = (struct HallofFameTeam*)(gDecompressionBuffer);
     fameTeam->mon[0] = sDummyFameMon;
-    sub_80F9BF4(0, 0, 0);
+    ComputerScreenCloseEffect(0, 0, 0);
     gTasks[taskId].func = Task_HofPC_HandleExit;
 }
 
 static void Task_HofPC_HandleExit(u8 taskId)
 {
-    if (!sub_80F9C30())
+    if (!IsComputerScreenCloseEffectActive())
     {
         u8 i;
 
diff --git a/src/pokemon_storage_system.c b/src/pokemon_storage_system.c
index 104f92c73..31cb47965 100644
--- a/src/pokemon_storage_system.c
+++ b/src/pokemon_storage_system.c
@@ -2360,11 +2360,11 @@ static void Cb_ShowPSS(u8 taskId)
     {
     case 0:
         PlaySE(SE_PC_LOGIN);
-        sub_80F9BCC(0x14, 0, 1);
+        ComputerScreenOpenEffect(20, 0, 1);
         sPSSData->state++;
         break;
     case 1:
-        if (!sub_80F9C1C())
+        if (!IsComputerScreenOpenEffectActive())
             SetPSSCallback(Cb_MainPSS);
         break;
     }
@@ -3781,11 +3781,11 @@ static void Cb_OnCloseBoxPressed(u8 taskId)
         }
         break;
     case 3:
-        sub_80F9BF4(0x14, 0, 1);
+        ComputerScreenCloseEffect(20, 0, 1);
         sPSSData->state++;
         break;
     case 4:
-        if (!sub_80F9C30())
+        if (!IsComputerScreenCloseEffectActive())
         {
             sub_80CABE0();
             gPlayerPartyCount = CalculatePlayerPartyCount();
@@ -3842,11 +3842,11 @@ static void Cb_OnBPressed(u8 taskId)
         }
         break;
     case 3:
-        sub_80F9BF4(0x14, 0, 0);
+        ComputerScreenCloseEffect(20, 0, 0);
         sPSSData->state++;
         break;
     case 4:
-        if (!sub_80F9C30())
+        if (!IsComputerScreenCloseEffectActive())
         {
             sub_80CABE0();
             gPlayerPartyCount = CalculatePlayerPartyCount();
diff --git a/src/record_mixing.c b/src/record_mixing.c
index 3a93d72f8..54b527216 100644
--- a/src/record_mixing.c
+++ b/src/record_mixing.c
@@ -327,7 +327,7 @@ static void Task_RecordMixing_Main(u8 taskId)
         VarSet(VAR_TEMP_0, 1);
         gUnknown_03001130 = FALSE;
         PrepareExchangePacket();
-        CreateRecordMixingSprite();
+        CreateRecordMixingLights();
         tState = 1;
         data[10] = CreateTask(Task_MixingRecordsRecv, 80);
         tSndEffTaskId = CreateTask(Task_RecordMixing_SoundEffect, 81);
@@ -337,7 +337,7 @@ static void Task_RecordMixing_Main(u8 taskId)
         {
             tState = 2;
             FlagSet(FLAG_SYS_MIX_RECORD);
-            DestroyRecordMixingSprite();
+            DestroyRecordMixingLights();
             DestroyTask(tSndEffTaskId);
         }
         break;