Start decompiling psychic.s

2 files changed, 357 insertions, 1 deletions

diff --git a/src/battle/anim/psychic.c b/src/battle/anim/psychic.c
new file mode 100644
index 000000000..19bfdfdb6
--- /dev/null
+++ b/src/battle/anim/psychic.c
@@ -0,0 +1,356 @@
+#include "global.h"
+#include "battle.h"
+#include "battle_anim.h"
+#include "palette.h"
+#include "rom_8077ABC.h"
+#include "sound.h"
+#include "task.h"
+#include "trig.h"
+#include "constants/songs.h"
+
+extern s16 gBattleAnimArgs[];
+extern u8 gAnimBankAttacker;
+extern u8 gAnimBankTarget;
+extern u16 gBattle_BG1_X;
+extern u16 gBattle_BG2_X;
+extern u8 gObjectBankIDs[];
+
+extern const union AffineAnimCmd *const gUnknown_083DA888[];
+extern struct AffineAnimFrameCmd gUnknown_083DA8A4;
+extern struct AffineAnimFrameCmd gUnknown_083DA8C4;
+
+static void sub_80DB88C(struct Sprite *sprite);
+static void sub_80DB8C0(struct Sprite *sprite);
+static void sub_80DB92C(struct Sprite *sprite);
+static void sub_80DB9E4(struct Sprite *sprite);
+static void sub_80DBC00(struct Sprite *sprite);
+static void sub_80DBC34(struct Sprite *sprite);
+static void sub_80DBCD0(u8 taskId);
+static void sub_80DBD58(u8 taskId);
+void sub_80DBE98(u8 taskId);
+
+
+void sub_80DB74C(struct Sprite *sprite)
+{
+    if (GetBankSide(gAnimBankAttacker) == SIDE_PLAYER || IsContest())
+    {
+        sprite->oam.priority = 2;
+        sprite->subpriority = 200;
+    }
+
+    if (!IsContest())
+    {
+        u8 bankCopy;
+        u8 bank = bankCopy = GetBankByIdentity(IDENTITY_OPPONENT_MON1);
+        u8 identity = GetBankIdentity_permutated(bank);
+        int var0 = 1;
+        u8 toBG_2 = (identity ^ var0) != 0;
+
+        if (IsAnimBankSpriteVisible(bank))
+            sub_8076034(bank, toBG_2);
+
+        bank = bankCopy ^ 2;
+        if (IsAnimBankSpriteVisible(bank))
+            sub_8076034(bank, toBG_2 ^ var0);
+    }
+
+    if (!IsContest() && IsDoubleBattle())
+    {
+        if (GetBankSide(gAnimBankAttacker) == SIDE_PLAYER)
+        {
+            sprite->pos1.x = 72;
+            sprite->pos1.y = 80;
+        }
+        else
+        {
+            sprite->pos1.x = 176;
+            sprite->pos1.y = 40;
+        }
+    }
+    else
+    {
+        if (GetBankSide(gAnimBankAttacker) != SIDE_PLAYER)
+            gBattleAnimArgs[0] = -gBattleAnimArgs[0];
+
+        sprite->pos1.x = GetBankPosition(gAnimBankAttacker, 0) + gBattleAnimArgs[0];
+        sprite->pos1.y = GetBankPosition(gAnimBankAttacker, 1) + gBattleAnimArgs[1];
+    }
+
+    if (IsContest())
+        sprite->pos1.y += 9;
+
+    sprite->data[0] = 256 + IndexOfSpritePaletteTag(gBattleAnimArgs[2]) * 16;
+    sprite->callback = sub_80DB88C;
+    sprite->callback(sprite);
+}
+
+static void sub_80DB88C(struct Sprite *sprite)
+{
+    REG_BLDALPHA = ((16 - sprite->data[3]) << 8) | sprite->data[3];
+
+    if (sprite->data[3] == 13)
+        sprite->callback = sub_80DB8C0;
+    else
+        sprite->data[3]++;
+}
+
+static void sub_80DB8C0(struct Sprite *sprite)
+{
+    u16 color;
+    u16 startOffset;
+    int i;
+
+    if (++sprite->data[1] == 2)
+    {
+        sprite->data[1] = 0;
+        startOffset = sprite->data[0];
+        color = gPlttBufferFaded[startOffset + 8];
+
+        for (i = 8; i > 0; i--)
+            gPlttBufferFaded[startOffset + i] = gPlttBufferFaded[startOffset + i - 1];
+
+        gPlttBufferFaded[startOffset + 1] = color;
+
+        if (++sprite->data[2] == 16)
+            sprite->callback = sub_80DB92C;
+    }
+}
+
+static void sub_80DB92C(struct Sprite *sprite)
+{
+    REG_BLDALPHA = ((16 - sprite->data[3]) << 8) | sprite->data[3];
+
+    if (--sprite->data[3] == -1)
+    {
+        if (!IsContest())
+        {
+            u8 bankCopy;
+            u8 bank = bankCopy = GetBankByIdentity(IDENTITY_OPPONENT_MON1);
+
+            if (IsAnimBankSpriteVisible(bank))
+                gSprites[gObjectBankIDs[bank]].invisible = 0;
+
+            bank = bankCopy ^ 2;
+            if (IsAnimBankSpriteVisible(bank))
+                gSprites[gObjectBankIDs[bank]].invisible = 0;
+        }
+
+        sprite->invisible = 1;
+        sprite->callback = sub_80DB9E4;
+    }
+}
+
+static void sub_80DB9E4(struct Sprite *sprite)
+{
+    if (!IsContest())
+    {
+        u8 bankCopy;
+        u8 bank = bankCopy = GetBankByIdentity(IDENTITY_OPPONENT_MON1);
+        u8 identity = GetBankIdentity_permutated(bank);
+        int var0 = 1;
+        u8 toBG_2 = (identity ^ var0) != 0;
+
+        if (IsAnimBankSpriteVisible(bank))
+            sub_8076464(toBG_2);
+
+        bank = bankCopy ^ 2;
+        if (IsAnimBankSpriteVisible(bank))
+            sub_8076464(toBG_2 ^ var0);
+    }
+
+    sprite->callback = DestroyAnimSprite;
+}
+
+void sub_80DBA4C(struct Sprite *sprite)
+{
+    if (sprite->data[0] == 0)
+    {
+        int arg3 = gBattleAnimArgs[3];
+        u8 var0 = 0;
+        if (arg3 == 0)
+            var0 = 1;
+
+        if (!IsContest() && IsDoubleBattle())
+        {
+            if (GetBankSide(gAnimBankAttacker) == SIDE_PLAYER)
+            {
+                sprite->pos1.x = 72 - gBattleAnimArgs[0];
+                sprite->pos1.y = gBattleAnimArgs[1] + 80;
+            }
+            else
+            {
+                sprite->pos1.x = gBattleAnimArgs[0] + 176;
+                sprite->pos1.y = gBattleAnimArgs[1] + 40;
+            }
+        }
+        else
+        {
+            if (gBattleAnimArgs[2] == 0)
+                sub_80787B0(sprite, var0);
+            else
+                sub_8078764(sprite, var0);
+        }
+
+        sprite->data[0]++;
+    }
+    else
+    {
+        if (sprite->animEnded || sprite->affineAnimEnded)
+            move_anim_8074EE0(sprite);
+    }
+}
+
+void sub_80DBAF4(struct Sprite *sprite)
+{
+    sprite->pos1.x = GetBankPosition(gAnimBankAttacker, 2);
+    sprite->pos1.y = GetBankPosition(gAnimBankAttacker, 3);
+
+    if (GetBankSide(gAnimBankAttacker) != SIDE_PLAYER)
+    {
+        StartSpriteAnim(sprite, 1);
+        sprite->pos1.x -= 40;
+        sprite->pos1.y += 10;
+        sprite->data[1] = -1;
+    }
+    else
+    {
+        sprite->pos1.x += 40;
+        sprite->pos1.y -= 10;
+        sprite->data[1] = 1;
+    }
+
+    StoreSpriteCallbackInData(sprite, DestroyAnimSprite);
+    sprite->callback = sub_8078600;
+}
+
+void sub_80DBB70(struct Sprite *sprite)
+{
+    s16 x = sub_807A100(gAnimBankAttacker, 1) /  2;
+    s16 y = sub_807A100(gAnimBankAttacker, 0) / -2;
+
+    if (GetBankSide(gAnimBankAttacker) == SIDE_OPPONENT)
+    {
+        x = -x;
+    }
+
+    sprite->pos1.x = GetBankPosition(gAnimBankAttacker, 2) + x;
+    sprite->pos1.y = GetBankPosition(gAnimBankAttacker, 3) + y;
+
+    if (sprite->pos1.y < 16)
+    {
+        sprite->pos1.y = 16;
+    }
+
+    StoreSpriteCallbackInData(sprite, sub_80DBC00);
+    sprite->callback = sub_8078600;
+}
+
+static void sub_80DBC00(struct Sprite *sprite)
+{
+    sprite->oam.affineMode = 1;
+    sprite->affineAnims = gUnknown_083DA888;
+    sprite->data[0] = 0;
+    InitSpriteAffineAnim(sprite);
+    sprite->callback = sub_80DBC34;
+}
+
+static void sub_80DBC34(struct Sprite *sprite)
+{
+    switch (sprite->data[0])
+    {
+    case 0:
+        if (sprite->affineAnimEnded)
+        {
+            FreeOamMatrix(sprite->oam.matrixNum);
+            sprite->oam.affineMode = 0;
+            sprite->data[1] = 18;
+            sprite->data[0]++;
+        }
+        break;
+    case 1:
+        if (--sprite->data[1] == -1)
+        {
+            DestroyAnimSprite(sprite);
+        }
+        break;
+    }
+}
+
+void sub_80DBC94(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    u8 spriteId = GetAnimBankSpriteId(0);
+    task->data[0] = spriteId;
+    sub_80798F4(task, spriteId, &gUnknown_083DA8A4);
+    task->func = sub_80DBCD0;
+}
+
+static void sub_80DBCD0(u8 taskId)
+{
+    if (!sub_807992C(&gTasks[taskId]))
+    {
+        DestroyAnimVisualTask(taskId);
+    }
+}
+
+void sub_80DBCFC(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    u8 spriteId = GetAnimBankSpriteId(0);
+    task->data[0] = spriteId;
+    task->data[1] = 0;
+    task->data[2] = 0;
+    task->data[3] = GetBankSide(gAnimBankAttacker) != SIDE_PLAYER ? 4 : 8;
+
+    sub_80798F4(task, task->data[0], &gUnknown_083DA8C4);
+    task->func = sub_80DBD58;
+}
+
+static void sub_80DBD58(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+
+    switch (task->data[1])
+    {
+    case 0:
+        sub_807992C(task);
+        if (++task->data[2] > 19)
+            task->data[1]++;
+        break;
+    case 1:
+        if (task->data[3] != 0)
+        {
+            gSprites[task->data[0]].pos2.y -= 8;
+            task->data[3]--;
+        }
+        else
+        {
+            gSprites[task->data[0]].invisible = 1;
+            gSprites[task->data[0]].pos1.x = 272;
+            sub_8078F40(task->data[0]);
+            DestroyAnimVisualTask(taskId);
+        }
+        break;
+    }
+}
+
+void sub_80DBE00(u8 taskId)
+{
+    u16 var0, var1;
+
+    struct Task *task = &gTasks[taskId];
+
+    task->data[3] = 16;
+    task->data[4] = 0;
+    task->data[13] = GetBankPosition(gAnimBankAttacker, 2);
+    task->data[14] = GetBankPosition(gAnimBankAttacker, 3);
+
+    var0 = sub_807A100(gAnimBankAttacker, 1) / 3;
+    var1 = sub_807A100(gAnimBankAttacker, 0) / 3;
+    task->data[12] = var0 > var1 ? var0 : var1;
+
+    REG_BLDCNT = 0x3F40;
+    REG_BLDALPHA = 0x10;
+
+    task->func = sub_80DBE98;
+}
diff --git a/src/rom_8077ABC.c b/src/rom_8077ABC.c
index 11a71155d..b84c431f7 100644
--- a/src/rom_8077ABC.c
+++ b/src/rom_8077ABC.c
@@ -1970,7 +1970,7 @@ void sub_807A0F4(struct Sprite *sprite)
     DestroySpriteAndFreeResources(sprite);
 }
 
-int sub_807A100(u8 slot, u8 a2)
+s16 sub_807A100(u8 slot, u8 a2)
 {
     u16 species;
     u32 personality;