Decompile overlay 8 (95%) (#115)

* started overlay 8

* progress

* progress

* progress

* more headers

* progress

* more progress

* symbols

* fix splits + new headers

* more progress

* func_ov008_02112ee0 & func_ov008_02112f28

* document fish in save item manager and unrelated things because precommit is mad

* SaveItemManager ctor

* progress?

* fix build issues

* split files to match data

* format

* format

* cleanup and match vfunc_08

* add reloc for overlay 0

* fix vtable symbol

* improve non-matching functions

---------

Co-authored-by: Aetias <144526980+AetiasHax@users.noreply.github.com>

1 files changed, 127 insertions, 0 deletions

diff --git a/src/08_GameStart/GameStart.cpp b/src/08_GameStart/GameStart.cpp
new file mode 100644
index 00000000..873089d8
--- /dev/null
+++ b/src/08_GameStart/GameStart.cpp
@@ -0,0 +1,127 @@
+#include "GameStart/GameStart.hpp"
+#include "Game/Game.hpp"
+#include "Game/GameMode.hpp"
+#include "Save/SaveItemManager.hpp"
+#include "System/OverlayManager.hpp"
+#include "Unknown/UnkStruct_020e9360.hpp"
+#include "Unknown/UnkStruct_020e9370.hpp"
+#include "Unknown/UnkStruct_020ec7dc.hpp"
+#include "Unknown/UnkStruct_020ee0a0.hpp"
+#include "Unknown/UnkStruct_020ee698.hpp"
+#include "Unknown/UnkStruct_020ee6f8.hpp"
+#include "Unknown/UnkStruct_020ee734.hpp"
+#include "Unknown/UnkStruct_020ee820.hpp"
+#include "Unknown/UnkStruct_020eec60.hpp"
+#include "Unknown/UnkStruct_020eec68.hpp"
+#include "Unknown/UnkStruct_020eec9c.hpp"
+#include "Unknown/UnkStruct_020eed2c.hpp"
+#include "Unknown/UnkStruct_027e0d54.hpp"
+#include "Unknown/UnkStruct_027e0dbc.hpp"
+#include "Unknown/UnkStruct_027e0f88.hpp"
+#include "Unknown/UnkStruct_func_0201f704.hpp"
+
+#pragma dont_reuse_strings off
+
+extern "C" {
+// SDK functions
+void func_02003f74(unk32);
+void func_02003ce4(unk32);
+void func_02004730(unk32);
+
+unk32 *MountCompressedNarc(char *, char *, unk8 *, unk32, unk32);
+void func_02031e1c(u32 *, const char *);
+void func_02027ab4(unk32, u32 *, UNK_PTR, UNK_PTR, unk32, unk32, unk32, unk32);
+void func_02016fcc(unk32 *);
+void func_02004ba8();
+void func_02004b94();
+void func_02004c68();
+void func_020425e0();
+void func_ov000_0207a654(unk32 *);
+}
+
+extern unk8 data_020691a0;
+extern unk32 data_ov000_020ec754;
+extern unk32 data_ov000_020d8795;
+extern u8 data_ov000_020d88b4[24];
+
+#define REG_DISPCNT (*(u32 *) 0x04000000)
+#define REG_DISPCNT_SUB (*(u32 *) 0x04001000)
+#define FRAME_COUNTER (*(u32 *) 0x027ffc3c)
+
+ARM GameStart *GameStart::Create(GameModeId modeId) {
+    return new(data_027e0ce0[1], 4) GameStart(modeId);
+}
+
+ARM GameStart::GameStart(GameModeId modeId) :
+    GameMode(modeId) {
+    unk32 *uVar1;
+    unk32 local_14;
+    unk32 local_18;
+    u32 local_1c;
+    unk32 local_20;
+    unk32 local_24;
+    u32 local_28;
+
+    this->mUnk_008 = 0;
+    this->mUnk_00c = 0;
+
+    func_02003f74(1);
+    func_02003ce4(2);
+    func_02004730(4);
+
+    REG_DISPCNT &= ~0x1F00;
+    REG_DISPCNT |= 0x1100;
+
+    REG_DISPCNT_SUB &= ~0x1F00;
+    REG_DISPCNT_SUB |= 0x0100;
+
+    uVar1 = MountCompressedNarc("NLG", "Menu/Bg/NintendoLogo.bin", &data_020691a0, 0xCC00, 1);
+    func_02031e1c(&local_28, "NLG:nLogo");
+    func_02031e1c(&local_1c, "NLG:rightTxt");
+    func_02027ab4(0, &local_28, &local_24, &local_20, 0, 0, 0, 2);
+    func_02027ab4(4, &local_1c, &local_18, &local_14, 0, 0, 0, 2);
+    func_02016fcc(uVar1);
+}
+
+ARM GameStart::~GameStart() {
+    func_02004ba8();
+    func_02004b94();
+    func_02004c68();
+}
+
+ARM GameModeId GameStart::vfunc_08(bool param1) {
+    GameModeId mode = GameModeId_Load;
+
+    switch (gGame.mFadeControl.mState) {
+        case 1:
+            if (!param1) {
+                this->mUnk_008++;
+                if (this->mUnk_008 == 1) {
+                    this->mUnk_00c = FRAME_COUNTER;
+                } else {
+                    if (this->mUnk_008 == 2 && gGame.mPrevModeId == 1) {
+                        GameStart::func_ov008_02112e88();
+                    }
+                    if (FRAME_COUNTER - this->mUnk_00c >= 60) {
+                        gGame.func_0202cec8(1, 0);
+                    }
+                }
+            }
+            break;
+        case 0: mode = GameModeId_Adventure; break;
+        default: break;
+    }
+
+    return mode;
+}
+
+ARM void GameStart::vfunc_10(u16 *param1) {}
+
+ARM void GameStart::func_ov008_02112e88() {
+    func_020425e0();
+    gOverlayManager.Load(OverlayIndex_Core, OverlayId_Core);
+    data_ov000_020ee734.func_ov008_021131ac();
+    data_027e0d54.func_ov008_02112f28();
+    UnkStruct_027e0f88::func_ov008_02113678(data_027e0ce0[0]);
+    func_ov000_0207a654(&data_ov000_020ec754);
+}