through sub_801A960

2 files changed, 466 insertions, 2 deletions

diff --git a/src/union_room.c b/src/union_room.c
index ad33112e4..88ac65baa 100644
--- a/src/union_room.c
+++ b/src/union_room.c
@@ -62,8 +62,6 @@ EWRAM_DATA struct TradeUnkStruct gUnknown_02022C40 = {};
 IWRAM_DATA struct UnkStruct_Leader *gUnknown_03000DA0;
 IWRAM_DATA struct UnkStruct_Group *gUnknown_03000DA4;
 IWRAM_DATA struct UnkStruct_URoom *gUnknown_03000DA8;
-IWRAM_DATA void *gUnknown_03000DAC;
-IWRAM_DATA bool32 gUnknown_03000DB0;
 
 // this file's functions
 void sub_80173E0(u8 windowId, u8 arg1, const u8 *str, u8 arg3, u8 arg4, u8 arg5);
diff --git a/src/union_room_battle.c b/src/union_room_battle.c
new file mode 100644
index 000000000..b571e803a
--- /dev/null
+++ b/src/union_room_battle.c
@@ -0,0 +1,466 @@
+#include "global.h"
+#include "battle.h"
+#include "task.h"
+#include "text.h"
+#include "main.h"
+#include "bg.h"
+#include "palette.h"
+#include "gpu_regs.h"
+#include "alloc.h"
+#include "menu.h"
+#include "window.h"
+#include "scanline_effect.h"
+#include "m4a.h"
+#include "dynamic_placeholder_text_util.h"
+#include "overworld.h"
+#include "strings.h"
+#include "string_util.h"
+#include "international_string_util.h"
+#include "sound.h"
+#include "constants/songs.h"
+#include "union_room.h"
+#include "union_room_battle.h"
+
+struct UnkStruct_3000DAC
+{
+    /*0x00*/ u32 unk00[4];
+    /*0x10*/ u32 unk10[4];
+    /*0x20*/ u32 unk20[16];
+    /*0x60*/ u8 taskId;
+    /*0x61*/ u8 unk61;
+    /*0x62*/ u8 filler_62[10];
+};
+
+IWRAM_DATA struct UnkStruct_3000DAC * gUnknown_03000DAC;
+IWRAM_DATA bool32 gUnknown_03000DB0;
+
+void sub_801A43C(void);
+void sub_801A6C0(u8 taskId);
+static void sub_801A8B0(u8 windowId, u8 fontId, const u8 * str, u8 x, u8 y, u8 mode);
+bool32 sub_801AA30(u32 * a0, u32 * a1, u32 * a2, u8 a3);
+
+const u16 gWirelessInfoScreenPal[] = INCBIN_U16("graphics/interface/wireless_info_screen.gbapal");
+const u32 gWirelessInfoScreenGfx[] = INCBIN_U32("graphics/interface/wireless_info_screen.4bpp.lz");
+const u32 gWirelessInfoScreenTilemap[] = INCBIN_U32("graphics/interface/wireless_info_screen.bin.lz");
+
+const struct BgTemplate gUnknown_082F0D34[] = {
+    {
+        .bg = 0,
+        .charBaseIndex = 2,
+        .mapBaseIndex = 0x1F,
+        .priority = 0
+    }, {
+        .bg = 1,
+        .charBaseIndex = 0,
+        .mapBaseIndex = 0x08,
+        .priority = 1
+    }
+};
+
+const struct WindowTemplate gUnknown_082F0D3C[] = {
+    {
+        .bg = 0x00,
+        .tilemapLeft = 0x03,
+        .tilemapTop = 0x00,
+        .width = 0x18,
+        .height = 0x03,
+        .paletteNum = 0x0f,
+        .baseBlock = 0x0001
+    }, {
+        .bg = 0x00,
+        .tilemapLeft = 0x03,
+        .tilemapTop = 0x04,
+        .width = 0x15,
+        .height = 0x0f,
+        .paletteNum = 0x0f,
+        .baseBlock = 0x0049
+    }, {
+        .bg = 0x00,
+        .tilemapLeft = 0x18,
+        .tilemapTop = 0x04,
+        .width = 0x03,
+        .height = 0x0f,
+        .paletteNum = 0x0f,
+        .baseBlock = 0x0184
+    },
+    { 0xFF }
+};
+
+const u8 *const gUnknown_082F0D5C[] = {
+    gText_WirelessCommStatus,
+    gText_PeopleTrading,
+    gText_PeopleBattling,
+    gText_PeopleInUnionRoom,
+    gText_PeopleCommunicating
+};
+
+const u8 gUnknown_082F0D70[][3] = {
+    {0x01, 0x01, 0x02},
+    {0x02, 0x01, 0x02},
+    {0x03, 0x01, 0x04},
+    {0x04, 0x00, 0x02},
+    {0x06, 0x03, 0x02},
+    {0x07, 0x03, 0x02},
+    {0x09, 0x03, 0x00},
+    {0x0a, 0x03, 0x00},
+    {0x0b, 0x03, 0x00},
+    {0x0c, 0xff, 0x00},
+    {0x0d, 0x00, 0x00},
+    {0x10, 0x03, 0x00},
+    {0x0f, 0x03, 0x00},
+    {0x40, 0x02, 0x01},
+    {0x41, 0x02, 0x02},
+    {0x44, 0x02, 0x02},
+    {0x45, 0x02, 0x00},
+    {0x48, 0x02, 0x02},
+    {0x54, 0x02, 0x01},
+    {0x53, 0x02, 0x02},
+    {0x51, 0x02, 0x01},
+    {0x52, 0x02, 0x01},
+    {0x15, 0x03, 0x02},
+    {0x16, 0x03, 0x02},
+    {0x17, 0x03, 0x00},
+    {0x18, 0x03, 0x00},
+    {0x19, 0x03, 0x00},
+    {0x1a, 0x03, 0x00},
+    {0x1b, 0x03, 0x00},
+    {0x1c, 0x01, 0x02},
+    {0x0e, 0x01, 0x02}
+};
+
+void sub_801A3F4(void)
+{
+    if (!IsDma3ManagerBusyWithBgCopy())
+    {
+        RunTasks();
+        RunTextPrinters();
+        AnimateSprites();
+        BuildOamBuffer();
+        UpdatePaletteFade();
+    }
+}
+
+void sub_801A418(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_801A42C(void)
+{
+    SetMainCallback2(sub_801A43C);
+}
+
+void sub_801A43C(void)
+{
+    SetGpuReg(REG_OFFSET_DISPCNT, 0x0000);
+    gUnknown_03000DAC = AllocZeroed(sizeof(struct UnkStruct_3000DAC));
+    SetVBlankCallback(NULL);
+    ResetBgsAndClearDma3BusyFlags(0);
+    InitBgsFromTemplates(0, gUnknown_082F0D34, ARRAY_COUNT(gUnknown_082F0D34));
+    SetBgTilemapBuffer(1, Alloc(0x800));
+    SetBgTilemapBuffer(0, Alloc(0x800));
+    DecompressAndLoadBgGfxUsingHeap(1, gWirelessInfoScreenGfx, 0, 0, 0);
+    CopyToBgTilemapBuffer(1, gWirelessInfoScreenTilemap, 0, 0);
+    InitWindows(gUnknown_082F0D3C);
+    DeactivateAllTextPrinters();
+    ResetPaletteFade();
+    ResetSpriteData();
+    ResetTasks();
+    ScanlineEffect_Stop();
+    m4aSoundVSyncOn();
+    SetVBlankCallback(sub_801A418);
+    gUnknown_03000DAC->taskId = CreateTask(sub_801A6C0, 0);
+    gUnknown_03000DAC->unk61 = sub_8013C40();
+    gUnknown_03000DAC->unk10[3] = 1;
+    ChangeBgX(0, 0, 0);
+    ChangeBgY(0, 0, 0);
+    ChangeBgX(1, 0, 0);
+    ChangeBgY(1, 0, 0);
+    LoadPalette(gWirelessInfoScreenPal, 0x00, 0x20);
+    Menu_LoadStdPalAt(0xF0);
+    DynamicPlaceholderTextUtil_Reset();
+    FillBgTilemapBufferRect(0, 0, 0, 0, 32, 32, 0x0F);
+    CopyBgTilemapBufferToVram(1);
+    SetMainCallback2(sub_801A3F4);
+    RunTasks();
+    RunTextPrinters();
+    AnimateSprites();
+    BuildOamBuffer();
+    UpdatePaletteFade();
+}
+
+void sub_801A584(void)
+{
+    s32 i;
+    FreeAllWindowBuffers();
+    for (i = 0; i < 2; i++)
+    {
+        Free(GetBgTilemapBuffer(i));
+    }
+    Free(gUnknown_03000DAC);
+    SetMainCallback2(CB2_ReturnToFieldContinueScriptPlayMapMusic);
+}
+
+void sub_801A5BC(s16 * a0, s16 * a1)
+{
+    if (++(*a0) > 5)
+    {
+        if (++(*a1) == 14)
+        {
+            *a1 = 0;
+        }
+        *a0 = 0;
+    }
+    LoadPalette(gWirelessInfoScreenPal + 16 * (*a1 + 2), 0, 0x10);
+}
+
+void sub_801A600(void)
+{
+    s32 i;
+    FillWindowPixelBuffer(0, 0);
+    FillWindowPixelBuffer(1, 0);
+    FillWindowPixelBuffer(2, 0);
+    sub_801A8B0(0, 1, gUnknown_082F0D5C[0], GetStringCenterAlignXOffset(1, gUnknown_082F0D5C[0], 0xC0), 6, 3);
+    for (i = 0; i < 3; i++)
+    {
+        sub_801A8B0(1, 1, gUnknown_082F0D5C[i + 1], 0, 30 * i + 8, 1);
+    }
+    sub_801A8B0(1, 1, gUnknown_082F0D5C[i + 1], 0, 30 * i + 8, 2);
+    PutWindowTilemap(0);
+    CopyWindowToVram(0, 2);
+    PutWindowTilemap(1);
+    CopyWindowToVram(1, 2);
+}
+
+void sub_801A6C0(u8 taskId)
+{
+    s32 i;
+    switch (gTasks[taskId].data[0])
+    {
+    case 0:
+        sub_801A600();
+        gTasks[taskId].data[0]++;
+        break;
+    case 1:
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 16, 0, 0);
+        ShowBg(1);
+        CopyBgTilemapBufferToVram(0);
+        ShowBg(0);
+        gTasks[taskId].data[0]++;
+        break;
+    case 2:
+        if (!gPaletteFade.active)
+        {
+            gTasks[taskId].data[0]++;
+        }
+        break;
+    case 3:
+        if (sub_801AA30(gUnknown_03000DAC->unk00, gUnknown_03000DAC->unk10, gUnknown_03000DAC->unk20, gUnknown_03000DAC->unk61))
+        {
+            FillWindowPixelBuffer(2, 0);
+            for (i = 0; i < 4; i++)
+            {
+                ConvertIntToDecimalStringN(gStringVar4, gUnknown_03000DAC->unk00[i], STR_CONV_MODE_RIGHT_ALIGN, 2);
+                if (i != 3)
+                {
+                    sub_801A8B0(2, 1, gStringVar4, 12, 30 * i + 8, 1);
+                }
+                else
+                {
+                    sub_801A8B0(2, 1, gStringVar4, 12, 98, 2);
+                }
+            }
+            PutWindowTilemap(2);
+            CopyWindowToVram(2, 3);
+        }
+        if (({gMain.newKeys & A_BUTTON;}) || ({gMain.newKeys & B_BUTTON;}))
+        {
+            PlaySE(SE_SELECT);
+            gTasks[gUnknown_03000DAC->unk61].data[15] = 0xFF;
+            gTasks[taskId].data[0]++;
+        }
+        sub_801A5BC(&gTasks[taskId].data[7], &gTasks[taskId].data[8]);
+        break;
+    case 4:
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 16, 0);
+        gTasks[taskId].data[0]++;
+        break;
+    case 5:
+        if (!gPaletteFade.active)
+        {
+            SetMainCallback2(sub_801A584);
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+static void sub_801A8B0(u8 windowId, u8 fontId, const u8 * str, u8 x, u8 y, u8 mode)
+{
+    u8 color[3];
+
+    switch (mode)
+    {
+    case 0:
+        color[0] = 0;
+        color[1] = 2;
+        color[2] = 3;
+        break;
+    case 1:
+        color[0] = 0;
+        color[1] = 1;
+        color[2] = 3;
+        break;
+    case 2:
+        color[0] = 0;
+        color[1] = 4;
+        color[2] = 5;
+        break;
+    case 3:
+        color[0] = 0;
+        color[1] = 7;
+        color[2] = 6;
+        break;
+    case 4:
+        color[0] = 0;
+        color[1] = 1;
+        color[2] = 2;
+        break;
+    }
+
+    AddTextPrinterParameterized4(windowId, fontId, x, y, 0, 0, color, -1, str);
+}
+
+#ifdef NONMATCHING
+// register swap r2, r3
+u8 sub_801A960(struct UnkStruct_x20 * a0, u32 * a1)
+{
+    s32 i, j, r2;
+    u8 result = a0->unk.field_0.unk_0a_0;
+
+    for (i = 0; i < (unsigned)ARRAY_COUNT(gUnknown_082F0D70); i++)
+    {
+        if (result != gUnknown_082F0D70[i][0])
+        {
+            continue;
+        }
+        if (a0->field_1A_0 != 1)
+        {
+            continue;
+        }
+        if (gUnknown_082F0D70[i][2] == 0)
+        {
+            r2 = 0;
+            for (j = 0; j < 4; j++)
+            {
+                if (a0->unk.field_0.unk_04[j] != 0)
+                {
+                    r2++;
+                }
+            }
+            r2++;
+            a1[gUnknown_082F0D70[i][1]] += r2;
+        }
+        else
+        {
+            a1[gUnknown_082F0D70[i][1]] += gUnknown_082F0D70[i][2];
+        }
+    }
+    return result;
+}
+#else
+NAKED
+u8 sub_801A960(struct UnkStruct_x20 * a0, u32 * a1)
+{
+    asm_unified("\tpush {r4-r7,lr}\n"
+                "\tmov r7, r10\n"
+                "\tmov r6, r9\n"
+                "\tmov r5, r8\n"
+                "\tpush {r5-r7}\n"
+                "\tsub sp, 0x4\n"
+                "\tmov r12, r0\n"
+                "\tadds r7, r1, 0\n"
+                "\tldrb r0, [r0, 0xA]\n"
+                "\tlsls r0, 25\n"
+                "\tlsrs r0, 25\n"
+                "\tmov r8, r0\n"
+                "\tmovs r4, 0\n"
+                "\tldr r0, =gUnknown_082F0D70\n"
+                "\tmov r9, r0\n"
+                "\tmovs r1, 0x1\n"
+                "\tadd r1, r9\n"
+                "\tmov r10, r1\n"
+                "\tmov r3, r12\n"
+                "\tadds r3, 0x4\n"
+                "\tstr r3, [sp]\n"
+                "_0801A98A:\n"
+                "\tlsls r0, r4, 1\n"
+                "\tadds r2, r0, r4\n"
+                "\tmov r3, r9\n"
+                "\tadds r1, r2, r3\n"
+                "\tadds r5, r0, 0\n"
+                "\tadds r6, r4, 0x1\n"
+                "\tldrb r1, [r1]\n"
+                "\tcmp r8, r1\n"
+                "\tbne _0801A9EE\n"
+                "\tmov r0, r12\n"
+                "\tldrb r1, [r0, 0x1A]\n"
+                "\tmovs r0, 0x3\n"
+                "\tands r0, r1\n"
+                "\tcmp r0, 0x1\n"
+                "\tbne _0801A9EE\n"
+                "\tmov r0, r9\n"
+                "\tadds r0, 0x2\n"
+                "\tadds r3, r2, r0\n"
+                "\tldrb r0, [r3]\n"
+                "\tcmp r0, 0\n"
+                "\tbne _0801A9DC\n"
+                "\tmovs r2, 0\n"
+                "\tmovs r1, 0\n"
+                "\tldr r3, [sp]\n"
+                "_0801A9BA:\n"
+                "\tadds r0, r3, r1\n"
+                "\tldrb r0, [r0]\n"
+                "\tcmp r0, 0\n"
+                "\tbeq _0801A9C4\n"
+                "\tadds r2, 0x1\n"
+                "_0801A9C4:\n"
+                "\tadds r1, 0x1\n"
+                "\tcmp r1, 0x3\n"
+                "\tble _0801A9BA\n"
+                "\tadds r2, 0x1\n"
+                "\tadds r0, r5, r4\n"
+                "\tadd r0, r10\n"
+                "\tldrb r1, [r0]\n"
+                "\tlsls r1, 2\n"
+                "\tadds r1, r7\n"
+                "\tb _0801A9E8\n"
+                "\t.pool\n"
+                "_0801A9DC:\n"
+                "\tmov r1, r10\n"
+                "\tadds r0, r2, r1\n"
+                "\tldrb r1, [r0]\n"
+                "\tlsls r1, 2\n"
+                "\tadds r1, r7\n"
+                "\tldrb r2, [r3]\n"
+                "_0801A9E8:\n"
+                "\tldr r0, [r1]\n"
+                "\tadds r0, r2\n"
+                "\tstr r0, [r1]\n"
+                "_0801A9EE:\n"
+                "\tadds r4, r6, 0\n"
+                "\tcmp r4, 0x1E\n"
+                "\tbls _0801A98A\n"
+                "\tmov r0, r8\n"
+                "\tadd sp, 0x4\n"
+                "\tpop {r3-r5}\n"
+                "\tmov r8, r3\n"
+                "\tmov r9, r4\n"
+                "\tmov r10, r5\n"
+                "\tpop {r4-r7}\n"
+                "\tpop {r1}\n"
+                "\tbx r1");
+}
+#endif //NONMATCHING