Finish decompiling dark.s except one function

2 files changed, 455 insertions, 3 deletions

diff --git a/src/battle/anim/dark.c b/src/battle/anim/dark.c
index 14988ac71..1c88dc23e 100644
--- a/src/battle/anim/dark.c
+++ b/src/battle/anim/dark.c
@@ -1,9 +1,13 @@
 #include "global.h"
 #include "battle_anim.h"
+#include "blend_palette.h"
+#include "decompress.h"
+#include "ewram.h"
 #include "palette.h"
 #include "rom_8077ABC.h"
 #include "scanline_effect.h"
 #include "sound.h"
+#include "sprite.h"
 #include "trig.h"
 #include "constants/battle_constants.h"
 
@@ -17,6 +21,12 @@ extern u16 gBattle_BG2_X;
 extern u16 gBattle_BG2_Y;
 extern u16 gBattle_WIN0H;
 extern u16 gBattle_WIN0V;
+extern u16 gBattlePartyID[];
+extern u8 gAnimMoveTurn;
+
+extern const u8 gUnknown_08D1D574[];
+extern const u8 gUnknown_08D1D410[];
+extern const u16 gUnknown_08D1D54C[];
 
 static void sub_80DFE90(struct Sprite *sprite);
 static void sub_80DFC9C(u8 taskId);
@@ -26,8 +36,9 @@ static void sub_80DFF98(struct Sprite *sprite);
 static void sub_80E00D0(struct Sprite *sprite);
 static void sub_80E02A4(u8 taskId);
 static void sub_80E0620(u8 taskId);
-void sub_80E08CC(u8 a);
-void sub_80E079C(struct Task *task);
+static void sub_80E08CC(u8 priority);
+static void sub_80E079C(struct Task *task);
+static void sub_80E0CD0(u8 taskId);
 
 
 // used in Smoke Ball escape, Sky Attack, Feint Attack and Camouflage
@@ -554,3 +565,444 @@ static void sub_80E0620(u8 taskId)
         break;
     }
 }
+
+// static void sub_80E079C(struct Task *task)
+// {
+//     int var0, var1;
+//     s16 var2;
+//     s16 i, j;
+
+//     var2 = task->data[5] - task->data[4];
+//     if (var2 != 0)
+//     {
+//         var0 = task->data[13] / var2;
+//         var1 = task->data[6];
+
+//         for (i = 0; i < task->data[4]; i++)
+//         {
+//             gScanlineEffectRegBuffers[gScanlineEffect.srcBuffer][i] = task->data[10] - (i - 159);
+//         }
+
+//         for (i = task->data[4]; i <= task->data[5]; i++)
+//         {
+//             if (i >= 0)
+//             {
+//                 gScanlineEffectRegBuffers[gScanlineEffect.srcBuffer][i] = (var1 - i) + task->data[10];
+//             }
+
+//             var1 += var0;
+//         }
+
+//         for (j = i; j < task->data[7]; j++)
+//         {
+//             if (j >= 0)
+//             {
+//                 gScanlineEffectRegBuffers[gScanlineEffect.srcBuffer][j] = (task->data[10] + 159) - j;
+//             }
+//         }
+//     }
+//     else
+//     {
+//         for (i = 0; i < 112; i++)
+//         {
+//             gScanlineEffectRegBuffers[0][i] = task->data[10] + 159 - i;
+//             gScanlineEffectRegBuffers[1][i] = task->data[10] + 159 - i;
+//         }
+//     }
+// }
+
+__attribute__((naked))
+static void sub_80E079C(struct Task *task)
+{
+    asm(".syntax unified\n\
+    push {r4-r7,lr}\n\
+    mov r7, r8\n\
+    push {r7}\n\
+    adds r6, r0, 0\n\
+    ldrh r0, [r6, 0x12]\n\
+    ldrh r4, [r6, 0x10]\n\
+    subs r0, r4\n\
+    lsls r0, 16\n\
+    asrs r1, r0, 16\n\
+    cmp r1, 0\n\
+    beq _080E0890\n\
+    movs r2, 0x22\n\
+    ldrsh r0, [r6, r2]\n\
+    bl __divsi3\n\
+    mov r8, r0\n\
+    movs r3, 0x14\n\
+    ldrsh r0, [r6, r3]\n\
+    lsls r5, r0, 8\n\
+    lsls r0, r4, 16\n\
+    movs r4, 0\n\
+    cmp r0, 0\n\
+    ble _080E07FC\n\
+    ldr r0, _080E0888 @ =gScanlineEffectRegBuffers\n\
+    mov r12, r0\n\
+    ldr r7, _080E088C @ =gScanlineEffect\n\
+_080E07D0:\n\
+    lsls r2, r4, 16\n\
+    asrs r2, 16\n\
+    lsls r3, r2, 1\n\
+    ldrb r1, [r7, 0x14]\n\
+    lsls r0, r1, 4\n\
+    subs r0, r1\n\
+    lsls r0, 7\n\
+    adds r3, r0\n\
+    add r3, r12\n\
+    adds r1, r2, 0\n\
+    subs r1, 0x9F\n\
+    ldrh r0, [r6, 0x1C]\n\
+    subs r0, r1\n\
+    strh r0, [r3]\n\
+    adds r2, 0x1\n\
+    lsls r2, 16\n\
+    lsrs r4, r2, 16\n\
+    asrs r2, 16\n\
+    movs r1, 0x10\n\
+    ldrsh r0, [r6, r1]\n\
+    cmp r2, r0\n\
+    blt _080E07D0\n\
+_080E07FC:\n\
+    ldrh r4, [r6, 0x10]\n\
+    lsls r3, r4, 16\n\
+    asrs r1, r3, 16\n\
+    movs r2, 0x12\n\
+    ldrsh r0, [r6, r2]\n\
+    cmp r1, r0\n\
+    bgt _080E0846\n\
+    ldr r0, _080E0888 @ =gScanlineEffectRegBuffers\n\
+    mov r12, r0\n\
+    ldr r7, _080E088C @ =gScanlineEffect\n\
+_080E0810:\n\
+    asrs r4, r3, 16\n\
+    cmp r4, 0\n\
+    blt _080E0832\n\
+    asrs r1, r5, 8\n\
+    subs r1, r4\n\
+    lsls r3, r4, 1\n\
+    ldrb r2, [r7, 0x14]\n\
+    lsls r0, r2, 4\n\
+    subs r0, r2\n\
+    lsls r0, 7\n\
+    adds r3, r0\n\
+    add r3, r12\n\
+    lsls r1, 16\n\
+    asrs r1, 16\n\
+    ldrh r2, [r6, 0x1C]\n\
+    adds r1, r2\n\
+    strh r1, [r3]\n\
+_080E0832:\n\
+    add r5, r8\n\
+    adds r0, r4, 0x1\n\
+    lsls r0, 16\n\
+    lsrs r4, r0, 16\n\
+    lsls r3, r4, 16\n\
+    asrs r1, r3, 16\n\
+    movs r2, 0x12\n\
+    ldrsh r0, [r6, r2]\n\
+    cmp r1, r0\n\
+    ble _080E0810\n\
+_080E0846:\n\
+    movs r3, 0x1C\n\
+    ldrsh r0, [r6, r3]\n\
+    adds r0, 0x9F\n\
+    lsls r2, r4, 16\n\
+    asrs r1, r2, 16\n\
+    subs r5, r0, r1\n\
+    movs r3, 0x16\n\
+    ldrsh r0, [r6, r3]\n\
+    cmp r1, r0\n\
+    bge _080E08BE\n\
+    ldr r7, _080E0888 @ =gScanlineEffectRegBuffers\n\
+    ldr r4, _080E088C @ =gScanlineEffect\n\
+_080E085E:\n\
+    asrs r3, r2, 16\n\
+    cmp r3, 0\n\
+    blt _080E0876\n\
+    lsls r2, r3, 1\n\
+    ldrb r1, [r4, 0x14]\n\
+    lsls r0, r1, 4\n\
+    subs r0, r1\n\
+    lsls r0, 7\n\
+    adds r2, r0\n\
+    adds r2, r7\n\
+    strh r5, [r2]\n\
+    subs r5, 0x1\n\
+_080E0876:\n\
+    adds r0, r3, 0x1\n\
+    lsls r2, r0, 16\n\
+    asrs r1, r2, 16\n\
+    movs r3, 0x16\n\
+    ldrsh r0, [r6, r3]\n\
+    cmp r1, r0\n\
+    blt _080E085E\n\
+    b _080E08BE\n\
+    .align 2, 0\n\
+_080E0888: .4byte gScanlineEffectRegBuffers\n\
+_080E088C: .4byte gScanlineEffect\n\
+_080E0890:\n\
+    movs r1, 0x1C\n\
+    ldrsh r0, [r6, r1]\n\
+    adds r5, r0, 0\n\
+    adds r5, 0x9F\n\
+    movs r4, 0\n\
+    ldr r3, _080E08C8 @ =gScanlineEffectRegBuffers\n\
+    movs r2, 0xF0\n\
+    lsls r2, 3\n\
+    adds r6, r3, r2\n\
+_080E08A2:\n\
+    lsls r0, r4, 16\n\
+    asrs r0, 16\n\
+    lsls r2, r0, 1\n\
+    adds r1, r2, r3\n\
+    strh r5, [r1]\n\
+    adds r2, r6\n\
+    strh r5, [r2]\n\
+    subs r5, 0x1\n\
+    adds r0, 0x1\n\
+    lsls r0, 16\n\
+    lsrs r4, r0, 16\n\
+    asrs r0, 16\n\
+    cmp r0, 0x6F\n\
+    ble _080E08A2\n\
+_080E08BE:\n\
+    pop {r3}\n\
+    mov r8, r3\n\
+    pop {r4-r7}\n\
+    pop {r0}\n\
+    bx r0\n\
+    .align 2, 0\n\
+_080E08C8: .4byte gScanlineEffectRegBuffers\n\
+    .syntax divided\n");
+}
+
+static void sub_80E08CC(u8 priority)
+{
+    u16 i;
+
+    for (i = 0; i < 4; i++)
+    {
+        u8 spriteId = GetAnimBankSpriteId(i);
+        if (spriteId != 0xFF)
+            gSprites[spriteId].oam.priority = priority;
+    }
+}
+
+void sub_80E0918(u8 taskId)
+{
+    u8 toBG2 = GetBankIdentity_permutated(gAnimBankAttacker) ^ 1 ? 1 : 0;
+    sub_8076034(gAnimBankAttacker, toBG2);
+    gSprites[gObjectBankIDs[gAnimBankAttacker]].invisible = 0;
+
+    if (IsAnimBankSpriteVisible(gAnimBankAttacker ^ 2))
+    {
+        sub_8076034(gAnimBankAttacker ^ 2, toBG2 ^ 1);
+        gSprites[gObjectBankIDs[gAnimBankAttacker ^ 2]].invisible = 0;
+    }
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_80E09C4(u8 taskId)
+{
+    u8 toBG2 = GetBankIdentity_permutated(gAnimBankAttacker) ^ 1 ? 1 : 0;
+    sub_8076464(toBG2);
+
+    if (IsAnimBankSpriteVisible(gAnimBankAttacker ^ 2))
+        sub_8076464(toBG2 ^ 1);
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_80E0A10(struct Sprite *sprite)
+{
+    sprite->pos1.x += gBattleAnimArgs[0];
+    sprite->pos1.y += gBattleAnimArgs[1];
+    StartSpriteAnim(sprite, gBattleAnimArgs[2]);
+    sprite->callback = sub_8078600;
+    StoreSpriteCallbackInData(sprite, DestroyAnimSprite);
+}
+
+void sub_80E0A4C(u8 taskId)
+{
+    u16 species;
+    u8 spriteId;
+    u8 newSpriteId;
+    u16 paletteNum;
+    struct Struct_sub_8078914 subStruct;
+    int var0 = 0;
+
+    gBattle_WIN0H = var0;
+    gBattle_WIN0V = var0;
+    REG_WININ = 0x3F3F;
+    REG_WINOUT = 0x3F3D;
+    REG_DISPCNT |= DISPCNT_OBJWIN_ON;
+    REG_BLDCNT = 0x3F42;
+    REG_BLDALPHA = 0xC08;
+    REG_BG1CNT_BITFIELD.priority = 0;
+    REG_BG1CNT_BITFIELD.screenSize = 0;
+    if (!IsContest())
+        REG_BG1CNT_BITFIELD.charBaseBlock = 1;
+
+    if (IsDoubleBattle() && !IsContest())
+    {
+        if (GetBankIdentity(gAnimBankAttacker) == 3 || GetBankIdentity(gAnimBankAttacker) == 0)
+        {
+            if (IsAnimBankSpriteVisible(gAnimBankAttacker ^ 2) == TRUE)
+            {
+                gSprites[gObjectBankIDs[gAnimBankAttacker ^ 2]].oam.priority--;
+                REG_BG1CNT_BITFIELD.priority = 1;
+                var0 = 1;
+            }
+        }
+    }
+
+    if (IsContest())
+    {
+        species = EWRAM_19348;
+    }
+    else
+    {
+        if (GetBankSide(gAnimBankAttacker) != SIDE_PLAYER)
+            species = GetMonData(&gEnemyParty[gBattlePartyID[gAnimBankAttacker]], MON_DATA_SPECIES);
+        else
+            species = GetMonData(&gPlayerParty[gBattlePartyID[gAnimBankAttacker]], MON_DATA_SPECIES);
+    }
+
+    spriteId = GetAnimBankSpriteId(0);
+    newSpriteId = sub_807A4A0(gAnimBankAttacker, spriteId, species);
+
+    sub_8078914(&subStruct);
+    DmaClear32(3, subStruct.field_4, 0x1000);
+    LZDecompressVram(&gUnknown_08D1D574, subStruct.field_4);
+    LZDecompressVram(&gUnknown_08D1D410, subStruct.field_0);
+    LoadCompressedPalette(&gUnknown_08D1D54C, subStruct.field_8 << 4, 32);
+
+    gBattle_BG1_X = -gSprites[spriteId].pos1.x + 96;
+    gBattle_BG1_Y = -gSprites[spriteId].pos1.y + 32;
+    paletteNum = 16 + gSprites[spriteId].oam.paletteNum;
+
+    if (gBattleAnimArgs[1]  == 0)
+        sub_8079108(paletteNum, FALSE);
+    else
+        BlendPalette(paletteNum * 16, 16, 11, gBattleAnimArgs[2]);
+
+    gTasks[taskId].data[0] = newSpriteId;
+    gTasks[taskId].data[1] = gBattleAnimArgs[0];
+    gTasks[taskId].data[2] = gBattleAnimArgs[1];
+    gTasks[taskId].data[3] = gBattleAnimArgs[2];
+    gTasks[taskId].data[6] = var0;
+    gTasks[taskId].func = sub_80E0CD0;
+}
+
+static void sub_80E0CD0(u8 taskId)
+{
+    struct Struct_sub_8078914 subStruct;
+    u16 paletteNum;
+    u8 spriteId;
+    u8 taskIdCopy = taskId;
+
+    gTasks[taskIdCopy].data[10] += 4;
+    gBattle_BG1_X -= 4;
+
+    if (gTasks[taskIdCopy].data[10] == 128)
+    {
+        gTasks[taskIdCopy].data[10] = 0;
+        gBattle_BG1_X += 128;
+
+        if (++gTasks[taskIdCopy].data[11] == 2)
+        {
+            sub_8076464(0);
+            gBattle_WIN0H = 0;
+            gBattle_WIN0V = 0;
+            REG_WININ = 0x3F3F;
+            REG_WINOUT = 0x3F3F;
+
+            if (!IsContest())
+                REG_BG1CNT_BITFIELD.charBaseBlock = 0;
+
+            REG_DISPCNT ^= DISPCNT_OBJWIN_ON;
+            REG_BLDCNT = 0;
+            REG_BLDALPHA = 0;
+
+            spriteId = GetAnimBankSpriteId(0);
+            paletteNum = 16 + gSprites[spriteId].oam.paletteNum;
+            if (gTasks[taskIdCopy].data[1] == 0)
+                sub_8079108(paletteNum, 1);
+
+            DestroySprite(&gSprites[gTasks[taskIdCopy].data[0]]);
+            sub_8078914(&subStruct);
+            DmaClear32(3, subStruct.field_4, 0x800);
+
+            if (gTasks[taskIdCopy].data[6] == 1)
+            {
+                gSprites[gObjectBankIDs[gAnimBankAttacker ^ 2]].oam.priority++;
+            }
+            
+            DestroyAnimVisualTask(taskIdCopy);
+        }
+    }
+}
+
+void sub_80E0E24(u8 taskId)
+{
+    u8 spriteId;
+    u8 bank;
+    bool8 calcSpriteId = FALSE;
+    u8 identity = 0;
+
+    switch (gBattleAnimArgs[0])
+    {
+    case 0:
+    case 1:
+    case 2:
+    case 3:
+        spriteId = GetAnimBankSpriteId(gBattleAnimArgs[0]);
+        break;
+    case 4:
+        identity = IDENTITY_PLAYER_MON1;
+        calcSpriteId = TRUE;
+        break;
+    case 5:
+        identity = IDENTITY_PLAYER_MON2;
+        calcSpriteId = TRUE;
+        break;
+    case 6:
+        identity = IDENTITY_OPPONENT_MON1;
+        calcSpriteId = TRUE;
+        break;
+    case 7:
+        identity = IDENTITY_OPPONENT_MON2;
+        calcSpriteId = TRUE;
+        break;
+    default:
+        spriteId = 0xFF;
+        break;
+    }
+
+    if (calcSpriteId)
+    {
+        bank = GetBankByIdentity(identity);
+        if (IsAnimBankSpriteVisible(bank))
+            spriteId = gObjectBankIDs[bank];
+        else
+            spriteId = 0xFF;
+    }
+
+    if (spriteId != 0xFF)
+        sub_8079108(gSprites[spriteId].oam.paletteNum + 16, gBattleAnimArgs[1]);
+
+    DestroyAnimVisualTask(taskId);
+}
+
+void sub_80E0EE8(u8 taskId)
+{
+    if (gAnimMoveTurn < 2)
+        gBattleAnimArgs[7] = 0;
+
+    if (gAnimMoveTurn == 2)
+        gBattleAnimArgs[7] = 1;
+
+    DestroyAnimVisualTask(taskId);
+}
diff --git a/src/rom_8077ABC.c b/src/rom_8077ABC.c
index b84c431f7..4a580eb41 100644
--- a/src/rom_8077ABC.c
+++ b/src/rom_8077ABC.c
@@ -2138,7 +2138,7 @@ void sub_807A3FC(u8 slot, bool8 a2, s16 *a3, s16 *a4)
     *a4 = (v4 + v6) / 2;
 }
 
-u8 sub_807A4A0(int a1, u8 sprite, int a3)
+u8 sub_807A4A0(int bank, u8 sprite, int species)
 {
     u8 new_sprite = CreateInvisibleSpriteWithCallback(SpriteCallbackDummy);
     gSprites[new_sprite] = gSprites[sprite];