decompile diploma (#66)

1 files changed, 138 insertions, 0 deletions

diff --git a/src/diploma.c b/src/diploma.c
new file mode 100644
index 000000000..f9e154cf3
--- /dev/null
+++ b/src/diploma.c
@@ -0,0 +1,138 @@
+#include "gba/gba.h"
+#include "main.h"
+#include "menu.h"
+#include "palette.h"
+#include "sprite.h"
+#include "string_util.h"
+#include "task.h"
+#include "text.h"
+
+extern void LZ77UnCompVram(const void *src, void *dest);
+extern void remove_some_task(void);
+extern void sub_80546F0(void);
+extern u16 sub_8090FF4(void);
+
+extern u8 gUnknown_0840D288[];
+extern u8 gUnknown_0840CB4C[];
+extern u8 gUnknown_0840CB0C[];
+extern u8 gStringVar1[];
+extern u8 gOtherText_NationalDex[];
+extern u8 gOtherText_HoennDex[];
+extern u8 gOtherText_DiplomaCertificationGameFreak[];
+
+static void VBlankCB(void);
+static void MainCB2(void);
+static void Task_DiplomaFadeIn(u8);
+static void Task_DiplomaWaitForKeyPress(u8);
+static void Task_DiplomaFadeOut(u8);
+static void DisplayDiplomaText(void);
+
+static void VBlankCB(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_8145D88(void)
+{
+    u32 savedIme;
+    
+    SetVBlankCallback(NULL);
+    
+    REG_DISPCNT = 0;
+    REG_BG3CNT = 0;
+    REG_BG2CNT = 0;
+    REG_BG1CNT = 0;
+    REG_BG0CNT = 0;
+    REG_BG3HOFS = 0;
+    REG_BG3VOFS = 0;
+    REG_BG2HOFS = 0;
+    REG_BG2VOFS = 0;
+    REG_BG1HOFS = 0;
+    REG_BG1VOFS = 0;
+    REG_BG0HOFS = 0;
+    REG_BG0VOFS = 0;
+    
+    DmaFill16(3, 0, VRAM, VRAM_SIZE);
+    DmaFill32(3, 0, OAM, OAM_SIZE);
+    DmaFill16(3, 0, PLTT, PLTT_SIZE);
+    
+    LZ77UnCompVram(gUnknown_0840D288, (void *)VRAM);
+    LZ77UnCompVram(gUnknown_0840CB4C, (void *)(VRAM + 0x3000));
+    
+    remove_some_task();
+    ResetTasks();
+    ResetSpriteData();
+    ResetPaletteFade();
+    FreeAllSpritePalettes();
+    LoadPalette(gUnknown_0840CB0C, 0, 64);
+    SetUpWindowConfig(&gWindowConfig_81E6C3C);
+    InitMenuWindow(&gWindowConfig_81E6CE4);
+    DisplayDiplomaText();
+    BeginNormalPaletteFade(-1, 0, 0x10, 0, 0);
+    
+    savedIme = REG_IME;
+    REG_IME = 0;
+    REG_IE |= INTR_FLAG_VBLANK;
+    REG_IME = savedIme;
+    REG_DISPSTAT |= DISPSTAT_VBLANK_INTR;
+    
+    SetVBlankCallback(VBlankCB);
+    SetMainCallback2(MainCB2);
+    
+    REG_BLDCNT = 0;
+    REG_BLDALPHA = 0;
+    REG_BLDY = 0;
+    REG_BG3CNT = 0x4603;
+    REG_DISPCNT = DISPCNT_MODE_0 | DISPCNT_OBJ_1D_MAP | DISPCNT_BG0_ON | DISPCNT_BG3_ON | DISPCNT_OBJ_ON;
+    
+    CreateTask(Task_DiplomaFadeIn, 0);
+}
+
+static void MainCB2(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    UpdatePaletteFade();
+}
+
+static void Task_DiplomaFadeIn(u8 taskId)
+{
+    if(!gPaletteFade.active)
+        gTasks[taskId].func = Task_DiplomaWaitForKeyPress;
+}
+
+static void Task_DiplomaWaitForKeyPress(u8 taskId)
+{
+    if(gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        BeginNormalPaletteFade(-1, 0, 0, 0x10, 0);
+        gTasks[taskId].func = Task_DiplomaFadeOut;
+    }
+}
+
+static void Task_DiplomaFadeOut(u8 taskId)
+{
+    if(!gPaletteFade.active)
+    {
+        DestroyTask(taskId);
+        SetMainCallback2(sub_80546F0);
+    }
+}
+
+static void DisplayDiplomaText(void)
+{
+    if(sub_8090FF4())
+    {
+        REG_BG3HOFS = 256;
+        StringCopy(gStringVar1, gOtherText_NationalDex);
+    }
+    else
+    {
+        REG_BG3HOFS = 0;
+        StringCopy(gStringVar1, gOtherText_HoennDex);
+    }
+    MenuPrint(gOtherText_DiplomaCertificationGameFreak, 6, 2);
+}
\ No newline at end of file