5 files changed, 28 insertions, 11 deletions
diff --git a/include/battle.h b/include/battle.h
index 9e67e8ec5..c06bdaad5 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -599,8 +599,7 @@ struct BattleAnimationInfo
     u8 field_9_x80:1;
     u8 field_A;
     u8 field_B;
-    u8 field_C;
-    u8 field_D;
+    s16 field_C;
     u8 field_E;
     u8 field_F;
 };
diff --git a/include/battle_anim.h b/include/battle_anim.h
index fa4058c1b..fffdabe06 100644
--- a/include/battle_anim.h
+++ b/include/battle_anim.h
@@ -9,11 +9,11 @@ enum
 {
     BG_ANIM_SCREEN_SIZE,
     BG_ANIM_AREA_OVERFLOW_MODE,
-    BG_ANIM2,
+    BG_ANIM_MOSAIC,
     BG_ANIM_CHAR_BASE_BLOCK,
     BG_ANIM_PRIORITY,
-    BG_ANIM_5,
-    BG_ANIM_6
+    BG_ANIM_PALETTES_MODE,
+    BG_ANIM_SCREEN_BASE_BLOCK,
 };
 
 struct UnknownAnimStruct2
@@ -67,11 +67,11 @@ s16 CalculatePanIncrement(s16 sourcePan, s16 targetPan, s16 incrementPan);
 void sub_80A4720(u16 a, u16 *b, u32 c, u8 d);
 void sub_80A477C(bool8);
 
-// battle_anim_80FE840.s
+// battle_intro.s
 void SetAnimBgAttribute(u8 bgId, u8 attributeId, u8 value);
-void sub_8118FBC(u8 arg0, u8 arg1, u8 arg2, u8 battlerPosition, u8 arg4, void *arg5, u16 *arg6, u16 arg7);
+void sub_8118FBC(int bgId, u8 arg1, u8 arg2, u8 battlerPosition, u8 arg4, u8 *arg5, u16 *arg6, u16 arg7);
 void HandleIntroSlide(u8 terrainId);
-u32 GetAnimBgAttribute(u8 bgId, u8 attributeId);
+int GetAnimBgAttribute(u8 bgId, u8 attributeId);
 
 // battle_anim_80A5C6C.s
 void sub_80A6450(struct Sprite *sprite);
@@ -131,6 +131,7 @@ void sub_80A805C(struct Task *task, u8 a2, s16 a3, s16 a4, s16 a5, s16 a6, u16 a
 u8 sub_80A80C8(struct Task *task);
 void sub_80A8EE4(struct Sprite *);
 void sub_80A67F4(struct Sprite *);
+void sub_80A6D48(u32 bgId, const void *src);
 
 enum
 {
@@ -168,8 +169,8 @@ void LaunchStatusAnimation(u8 battlerId, u8 statusAnimId);
 
 // battle_anim_8170478.s
 u8 ItemIdToBallId(u16 itemId);
-u8 LaunchBallStarsTask(u8 x, u8 y, u8 kindOfStars, u8 arg3, u8 ballId);
-u8 LaunchBallFadeMonTask(bool8 unFadeLater, u8 battlerId, u32 arg2, u8 ballId);
+u8 AnimateBallOpenParticles(u8 x, u8 y, u8 priority, u8 subpriority, u8 ballId);
+u8 LaunchBallFadeMonTask(bool8 unFadeLater, u8 battlerId, u32 selectedPalettes, u8 ballId);
 
 // battle_anim_utility_funcs.s
 void sub_8116EB4(u8);
@@ -223,4 +224,7 @@ extern const struct OamData gUnknown_0852493C;
 extern const struct OamData gUnknown_08524A5C;
 extern const struct OamData gUnknown_08524A74;
 
+extern const struct CompressedSpriteSheet gBattleAnimPicTable[];
+extern const struct CompressedSpritePalette gBattleAnimPaletteTable[];
+
 #endif // GUARD_BATTLE_ANIM_H
diff --git a/include/gba/types.h b/include/gba/types.h
index a7dbf3e03..fff48d437 100644
--- a/include/gba/types.h
+++ b/include/gba/types.h
@@ -32,7 +32,9 @@ struct BgCnt
 {
     u16 priority:2;
     u16 charBaseBlock:2;
-    u16 dummy:4;
+    u16 dummy:2;
+    u16 mosaic:1;
+    u16 palettes:1;
     u16 screenBaseBlock:5;
     u16 areaOverflowMode:1;
     u16 screenSize:2;
diff --git a/include/global.h b/include/global.h
index 97625c890..3aee597de 100644
--- a/include/global.h
+++ b/include/global.h
@@ -61,6 +61,12 @@
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #define max(a, b) ((a) >= (b) ? (a) : (b))
 
+// Extracts the upper 16 bits of a 32-bit number
+#define HIHALF(n) (((n) & 0xFFFF0000) >> 16)
+
+// Extracts the lower 16 bits of a 32-bit number
+#define LOHALF(n) ((n) & 0xFFFF)
+
 // There are many quirks in the source code which have overarching behavioral differences from
 // a number of other files. For example, diploma.c seems to declare rodata before each use while
 // other files declare out of order and must be at the beginning. There are also a number of
diff --git a/include/graphics.h b/include/graphics.h
index e2889ed86..33a26068b 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -4233,6 +4233,7 @@ extern const u32 gBattleAnimSpriteSheet_132[];
 extern const u32 gBattleAnimSpriteSheet_133[];
 extern const u32 gBattleAnimSpriteSheet_134[];
 extern const u32 gBattleAnimSpriteSheet_135[];
+extern const u32 gBattleAnimSpriteSheet_Particles[];
 extern const u32 gBattleAnimSpriteSheet_136[];
 extern const u32 gBattleAnimSpriteSheet_137[];
 extern const u32 gBattleAnimSpriteSheet_138[];
@@ -4748,4 +4749,9 @@ extern const u32 gCableCarDoor_Gfx[];
 extern const u32 gCableCarCord_Gfx[];
 extern const u16 gCableCar_Pal[];
 
+// Battle Anim
+extern const u32 gUnknown_08C2DDA4[];
+extern const u32 gUnknown_08C2EA50[];
+extern const u32 gUnknown_08C2EA9C[];
+
 #endif //GUARD_GRAPHICS_H