Start arena

1 files changed, 224 insertions, 0 deletions

diff --git a/src/battle_arena.c b/src/battle_arena.c
new file mode 100644
index 000000000..968a7e7e4
--- /dev/null
+++ b/src/battle_arena.c
@@ -0,0 +1,224 @@
+#include "global.h"
+#include "event_data.h"
+#include "palette.h"
+#include "gpu_regs.h"
+#include "decompress.h"
+#include "battle.h"
+#include "battle_message.h"
+#include "text.h"
+#include "bg.h"
+#include "sound.h"
+#include "m4a.h"
+#include "constants/songs.h"
+
+extern u16 gBattle_WIN0H;
+extern u16 gBattle_WIN0V;
+
+extern void (* const gUnknown_08611F84[])(void);
+extern const struct CompressedSpriteSheet gUnknown_08611F74[];
+extern const u16 gUnknown_08D855E8[];
+extern const struct SpriteTemplate gUnknown_08611F5C;
+
+// This file's functions.
+void sub_81A5558(u8 x, u8 y, u8 arg2, u8 battler);
+
+// code
+void CallBattleArenaFunction(void)
+{
+    gUnknown_08611F84[gSpecialVar_0x8004]();
+}
+
+u8 sub_81A5258(u8 *state)
+{
+    s32 i;
+    u8 ret = 0;
+    switch (*state)
+    {
+    case 0:
+        BeginNormalPaletteFade(0x7FFFFF1C, 4, 0, 8, 0);
+        SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG1 | WININ_WIN0_BG2 | WININ_WIN0_BG3 | WININ_WIN0_OBJ | WININ_WIN0_CLR | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+        LoadCompressedObjectPic(gUnknown_08611F74);
+        LoadCompressedPalette(gUnknown_08D855E8, 0x1F0, 0x20);
+        gBattle_WIN0H = 0xFF;
+        gBattle_WIN0V = 0x70;
+        (*state)++;
+        break;
+    case 1:
+        if (!gPaletteFade.active)
+        {
+            HandleBattleWindow(5, 0, 24, 13, 0);
+            (*state)++;
+        }
+        break;
+    case 2:
+        if (!IsDma3ManagerBusyWithBgCopy())
+        {
+            gBattleTextBuff1[0] = CHAR_0;
+            gBattleTextBuff1[1] = EOS;
+            gBattleTextBuff2[0] = CHAR_0;
+            gBattleTextBuff2[1] = EOS;
+            BattleStringExpandPlaceholdersToDisplayedString(gText_PlayerMon1Name);
+            BattlePutTextOnWindow(gDisplayedStringBattle, 15);
+            BattlePutTextOnWindow(gText_Vs, 16);
+            BattleStringExpandPlaceholdersToDisplayedString(gText_OpponentMon1Name);
+            BattlePutTextOnWindow(gDisplayedStringBattle, 17);
+            BattlePutTextOnWindow(gText_Mind, 18);
+            BattlePutTextOnWindow(gText_Skill, 19);
+            BattlePutTextOnWindow(gText_Body, 20);
+            BattleStringExpandPlaceholdersToDisplayedString(gText_Judgement);
+            BattlePutTextOnWindow(gDisplayedStringBattle, 21);
+            (*state)++;
+        }
+        break;
+    case 3:
+        if (!IsDma3ManagerBusyWithBgCopy())
+        {
+            SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+            for (i = 0; i < 8; i++)
+            {
+                u8 spriteId = CreateSprite(&gUnknown_08611F5C, 0x40 + (i * 0x10), 84, 0);
+                StartSpriteAnim(&gSprites[spriteId], 3);
+            }
+            ret = 1;
+            (*state)++;
+        }
+        break;
+    case 4:
+        PlaySE(SE_HANTEI1);
+        sub_81A5558(80, 40, 0, 0);
+        sub_81A5558(160, 40, 0, 1);
+        BattleStringExpandPlaceholdersToDisplayedString(gText_Judgement);
+        BattlePutTextOnWindow(gDisplayedStringBattle, 21);
+        (*state)++;
+        ret = 1;
+        break;
+    case 5:
+        PlaySE(SE_HANTEI1);
+        sub_81A5558(80, 56, 1, 0);
+        sub_81A5558(160, 56, 1, 1);
+        BattleStringExpandPlaceholdersToDisplayedString(gText_Judgement);
+        BattlePutTextOnWindow(gDisplayedStringBattle, 21);
+        (*state)++;
+        ret = 1;
+        break;
+    case 6:
+        PlaySE(SE_HANTEI1);
+        sub_81A5558(80, 72, 2, 0);
+        sub_81A5558(160, 72, 2, 1);
+        BattleStringExpandPlaceholdersToDisplayedString(gText_Judgement);
+        BattlePutTextOnWindow(gDisplayedStringBattle, 21);
+        (*state)++;
+        ret = 1;
+        break;
+    case 7:
+        PlaySE(SE_HANTEI2);
+        if (gBattleTextBuff1[0] > gBattleTextBuff2[0])
+        {
+            ret = 2;
+            gBattleScripting.battler = 0;
+        }
+        else if (gBattleTextBuff1[0] < gBattleTextBuff2[0])
+        {
+            ret = 3;
+            gBattleScripting.battler = 1;
+        }
+        else
+        {
+            ret = 4;
+        }
+        (*state)++;
+        break;
+    case 8:
+        (*state)++;
+        break;
+    case 9:
+        SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG1 | WININ_WIN0_BG2 | WININ_WIN0_BG3 | WININ_WIN0_OBJ | WININ_WIN0_CLR | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+        HandleBattleWindow(5, 0, 24, 13, WINDOW_CLEAR);
+        CopyBgTilemapBufferToVram(0);
+        m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 256);
+        BeginNormalPaletteFade(0x7FFFFF1C, 4, 8, 0, 0);
+        (*state)++;
+        break;
+    case 10:
+        if (!gPaletteFade.active)
+        {
+            SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR | WININ_WIN1_BG_ALL | WININ_WIN1_OBJ | WININ_WIN1_CLR);
+            FreeSpriteTilesByTag(0x3E8);
+            ret = 1;
+            (*state)++;
+        }
+        break;
+    }
+
+    return ret;
+}
+
+void sub_81A5558(u8 x, u8 y, u8 arg2, u8 battler)
+{
+    s32 animNum = 0;
+    s32 r6 = 0;
+    s32 r1 = 0;
+    s8 *ptr1 = gBattleStruct->field_298;
+    s8 *ptr2 = gBattleStruct->field_29A;
+    u16 *ptr3 = gBattleStruct->field_29C;
+
+    switch (arg2)
+    {
+    case 0:
+        r6 = ptr1[battler];
+        r1 = ptr1[BATTLE_OPPOSITE(battler)];
+        break;
+    case 1:
+        r6 = ptr2[battler];
+        r1 = ptr2[BATTLE_OPPOSITE(battler)];
+        break;
+    case 2:
+        r6 = (gBattleMons[battler].hp * 100) / ptr3[battler];
+        r1 = (gBattleMons[BATTLE_OPPOSITE(battler)].hp * 100) / ptr3[BATTLE_OPPOSITE(battler)];
+        break;
+    }
+
+    if (r6 > r1)
+    {
+        animNum = 2;
+        if (battler != 0)
+            gBattleTextBuff2[0] += 2;
+        else
+            gBattleTextBuff1[0] += 2;
+    }
+    else if (r6 == r1)
+    {
+        animNum = 1;
+        if (battler != 0)
+            gBattleTextBuff2[0] += 1;
+        else
+            gBattleTextBuff1[0] += 1;
+    }
+    else
+    {
+        animNum = 0;
+    }
+
+    r6 = CreateSprite(&gUnknown_08611F5C, x, y, 0);
+    StartSpriteAnim(&gSprites[r6], animNum);
+}
+
+void sub_81A5698(struct Sprite *sprite)
+{
+    if (gBattleCommunication[0] > 8)
+        DestroySprite(sprite);
+}
+
+void sub_81A56B4(void)
+{
+    s8 *ptr1 = gBattleStruct->field_298;
+    s8 *ptr2 = gBattleStruct->field_29A;
+    u16 *ptr3 = gBattleStruct->field_29C;
+
+    ptr1[0] = 0;
+    ptr1[1] = 0;
+    ptr2[0] = 0;
+    ptr2[1] = 0;
+    ptr3[0] = gBattleMons[0].hp;
+    ptr3[1] = gBattleMons[1].hp;
+}