start menu helpers decomp

1 files changed, 400 insertions, 0 deletions

diff --git a/src/menu_helpers.c b/src/menu_helpers.c
new file mode 100644
index 000000000..8e8197a12
--- /dev/null
+++ b/src/menu_helpers.c
@@ -0,0 +1,400 @@
+#include "global.h"
+#include "task.h"
+#include "window.h"
+#include "menu.h"
+#include "menu_helpers.h"
+#include "gpu_regs.h"
+#include "bg.h"
+#include "main.h"
+#include "text.h"
+#include "link.h"
+#include "string_util.h"
+#include "sound.h"
+#include "mail.h"
+#include "overworld.h"
+#include "decompress.h"
+#include "constants/songs.h"
+#include "constants/items.h"
+#include "constants/maps.h"
+
+extern u8 gUnknown_0203A140;
+extern TaskFunc gUnknown_0300117C;
+extern struct YesNoFuncTable gUnknown_0203A138;
+
+extern const struct CompressedSpriteSheet gUnknown_0859F514;
+extern const struct CompressedSpritePalette gUnknown_0859F51C;
+
+extern bool32 InUnionRoom(void);
+extern bool32 sub_800B504(void);
+
+// this file's functions
+void Task_ContinueTaskAfterMessagePrints(u8 taskId);
+void Task_CallYesOrNoCallback(u8 taskId);
+
+// code
+void ResetVramOamAndBgCntRegs(void)
+{
+    SetGpuReg(REG_OFFSET_DISPCNT, 0);
+    SetGpuReg(REG_OFFSET_BG3CNT, 0);
+    SetGpuReg(REG_OFFSET_BG2CNT, 0);
+    SetGpuReg(REG_OFFSET_BG1CNT, 0);
+    SetGpuReg(REG_OFFSET_BG0CNT, 0);
+    CpuFill16(0, (void*) VRAM, VRAM_SIZE);
+    CpuFill32(0, (void*) OAM, OAM_SIZE);
+    CpuFill16(0, (void*) PLTT, PLTT_SIZE);
+}
+
+void ResetAllBgsCoordinates(void)
+{
+    ChangeBgX(0, 0, 0);
+    ChangeBgY(0, 0, 0);
+    ChangeBgX(1, 0, 0);
+    ChangeBgY(1, 0, 0);
+    ChangeBgX(2, 0, 0);
+    ChangeBgY(2, 0, 0);
+    ChangeBgX(3, 0, 0);
+    ChangeBgY(3, 0, 0);
+}
+
+void SetVBlankHBlankCallbacksToNull(void)
+{
+    SetVBlankCallback(NULL);
+    SetHBlankCallback(NULL);
+}
+
+void DisplayMessageAndContinueTask(u8 taskId, u8 windowId, u16 arg2, u8 arg3, u8 fontId, u8 textSpeed, const u8 *string, void *taskFunc)
+{
+    gUnknown_0203A140 = windowId;
+    sub_8197B1C(windowId, TRUE, arg2, arg3);
+
+    if (string != gStringVar4)
+        StringExpandPlaceholders(gStringVar4, string);
+
+    gTextFlags.flag_0 = 1;
+    AddTextPrinterParameterized(windowId, fontId, gStringVar4, textSpeed, NULL, 2, 1, 3);
+    gUnknown_0300117C = taskFunc;
+    gTasks[taskId].func = Task_ContinueTaskAfterMessagePrints;
+}
+
+bool16 RunTextPrintersRetIsActive(u8 textPrinterId)
+{
+    RunTextPrinters();
+    return IsTextPrinterActive(textPrinterId);
+}
+
+void Task_ContinueTaskAfterMessagePrints(u8 taskId)
+{
+    if (!RunTextPrintersRetIsActive(gUnknown_0203A140))
+        gUnknown_0300117C(taskId);
+}
+
+void sub_8121F68(u8 taskId, const struct YesNoFuncTable *data)
+{
+    gUnknown_0203A138 = *data;
+    gTasks[taskId].func = Task_CallYesOrNoCallback;
+}
+
+void CreateYesNoMenuWithCallbacks(u8 taskId, const struct WindowTemplate *template, u8 arg2, u8 arg3, u8 arg4, u16 tileStart, u8 palette, const struct YesNoFuncTable *yesNo)
+{
+    CreateYesNoMenu(template, tileStart, palette, 0);
+    gUnknown_0203A138 = *yesNo;
+    gTasks[taskId].func = Task_CallYesOrNoCallback;
+}
+
+void Task_CallYesOrNoCallback(u8 taskId)
+{
+    switch (ProcessMenuInputNoWrap_())
+    {
+    case 0:
+        PlaySE(SE_SELECT);
+        gUnknown_0203A138.yesFunc(taskId);
+        break;
+    case 1:
+    case MENU_B_PRESSED:
+        PlaySE(SE_SELECT);
+        gUnknown_0203A138.noFunc(taskId);
+        break;
+    }
+}
+
+bool8 AdjustQuantityAccordingToDPadInput(s16 *arg0, u16 arg1)
+{
+    s16 valBefore = (*arg0);
+
+    if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_UP)
+    {
+        (*arg0)++;
+        if ((*arg0) > arg1)
+            (*arg0) = 1;
+
+        if ((*arg0) == valBefore)
+        {
+            return FALSE;
+        }
+        else
+        {
+            PlaySE(SE_SELECT);
+            return TRUE;
+        }
+    }
+    else if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_DOWN)
+    {
+        (*arg0)--;
+        if ((*arg0) <= 0)
+            (*arg0) = arg1;
+
+        if ((*arg0) == valBefore)
+        {
+            return FALSE;
+        }
+        else
+        {
+            PlaySE(SE_SELECT);
+            return TRUE;
+        }
+    }
+    else if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_RIGHT)
+    {
+        (*arg0) += 10;
+        if ((*arg0) > arg1)
+            (*arg0) = arg1;
+
+        if ((*arg0) == valBefore)
+        {
+            return FALSE;
+        }
+        else
+        {
+            PlaySE(SE_SELECT);
+            return TRUE;
+        }
+    }
+    else if ((gMain.newAndRepeatedKeys & DPAD_ANY) == DPAD_LEFT)
+    {
+        (*arg0) -= 10;
+        if ((*arg0) <= 0)
+            (*arg0) = 1;
+
+        if ((*arg0) == valBefore)
+        {
+            return FALSE;
+        }
+        else
+        {
+            PlaySE(SE_SELECT);
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+u8 GetLRKeysState(void)
+{
+    if (gSaveBlock2Ptr->optionsButtonMode == OPTIONS_BUTTON_MODE_LR)
+    {
+        if (gMain.newKeys & L_BUTTON)
+            return 1;
+        if (gMain.newKeys & R_BUTTON)
+            return 2;
+    }
+
+    return 0;
+}
+
+u8 sub_812210C(void)
+{
+    if (gSaveBlock2Ptr->optionsButtonMode == OPTIONS_BUTTON_MODE_LR)
+    {
+        if (gMain.newAndRepeatedKeys & L_BUTTON)
+            return 1;
+        if (gMain.newAndRepeatedKeys & R_BUTTON)
+            return 2;
+    }
+
+    return 0;
+}
+
+bool8 sub_8122148(u16 itemId)
+{
+    if (itemId != ITEM_ENIGMA_BERRY)
+        return TRUE;
+    else if (gSaveBlock1Ptr->location.mapGroup == MAP_GROUP(TRADE_CENTER) && gSaveBlock1Ptr->location.mapNum == MAP_NUM(TRADE_CENTER))
+        return FALSE;
+    else if (InUnionRoom() != TRUE)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+bool8 itemid_80BF6D8_mail_related(u16 itemId)
+{
+    if (is_c1_link_related_active() != TRUE && InUnionRoom() != TRUE)
+        return TRUE;
+    else if (ItemIsMail(itemId) != TRUE)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+bool8 sub_81221AC(void)
+{
+    if (is_c1_link_related_active() == TRUE || gReceivedRemoteLinkPlayers == 1)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+static bool8 sub_81221D0(void)
+{
+    if (!sub_81221AC())
+        return FALSE;
+    else
+        return sub_8087598();
+}
+
+bool8 sub_81221EC(void)
+{
+    if (sub_81221D0() == TRUE)
+        return TRUE;
+    else if (sub_800B504() != TRUE)
+        return FALSE;
+    else
+        return TRUE;
+}
+
+void sub_812220C(struct ItemSlot *slots, u8 count, u8 *arg2, u8 *usedSlotsCount, u8 maxUsedSlotsCount)
+{
+    u16 i;
+    struct ItemSlot *slots_ = slots;
+
+    (*usedSlotsCount) = 0;
+    for (i = 0; i < count; i++)
+    {
+        if (slots_[i].itemId != ITEM_NONE)
+            (*usedSlotsCount)++;
+    }
+
+    (*usedSlotsCount)++;
+    if ((*usedSlotsCount) > maxUsedSlotsCount)
+        *arg2 = maxUsedSlotsCount;
+    else
+        *arg2 = (*usedSlotsCount);
+}
+
+void sub_812225C(u16 *arg0, u16 *arg1, u8 arg2, u8 arg3)
+{
+    if ((*arg0) != 0 && (*arg0) + arg2 > arg3)
+        (*arg0) = arg3 - arg2;
+
+    if ((*arg0) + (*arg1) >= arg3)
+    {
+        if (arg3 == 0)
+            (*arg1) = 0;
+        else
+            (*arg1) = arg3 - 1;
+    }
+}
+
+#ifdef NONMATCHING
+void sub_8122298(u16 *arg0, u16 *arg1, u8 arg2, u8 arg3, u8 arg4)
+{
+    if (arg2 & 1)
+    {
+
+    }
+    else
+    {
+
+    }
+}
+#else
+NAKED
+void sub_8122298(u16 *arg0, u16 *arg1, u8 arg2, u8 arg3, u8 arg4)
+{
+    asm_unified("\n\
+                	push {r4-r7,lr}\n\
+	adds r5, r0, 0\n\
+	adds r4, r1, 0\n\
+	ldr r0, [sp, 0x14]\n\
+	lsls r2, 24\n\
+	lsrs r7, r2, 24\n\
+	lsls r3, 24\n\
+	lsrs r6, r3, 24\n\
+	lsls r2, r0, 24\n\
+	lsrs r0, r2, 24\n\
+	movs r1, 0x1\n\
+	ands r0, r1\n\
+	cmp r0, 0\n\
+	beq _081222F0\n\
+	lsrs r2, 25\n\
+	ldrh r0, [r4]\n\
+	cmp r0, r2\n\
+	bcc _08122322\n\
+	movs r1, 0\n\
+	subs r0, r2\n\
+	cmp r1, r0\n\
+	bge _08122322\n\
+	ldrh r0, [r5]\n\
+	adds r0, r7\n\
+	cmp r0, r6\n\
+	beq _08122322\n\
+_081222CC:\n\
+	ldrh r0, [r4]\n\
+	subs r0, 0x1\n\
+	strh r0, [r4]\n\
+	ldrh r0, [r5]\n\
+	adds r0, 0x1\n\
+	strh r0, [r5]\n\
+	adds r0, r1, 0x1\n\
+	lsls r0, 24\n\
+	lsrs r1, r0, 24\n\
+	ldrh r0, [r4]\n\
+	subs r0, r2\n\
+	cmp r1, r0\n\
+	bge _08122322\n\
+	ldrh r0, [r5]\n\
+	adds r0, r7\n\
+	cmp r0, r6\n\
+	bne _081222CC\n\
+	b _08122322\n\
+_081222F0:\n\
+	ldrh r3, [r4]\n\
+	lsrs r2, 25\n\
+	adds r0, r2, 0x1\n\
+	cmp r3, r0\n\
+	blt _08122322\n\
+	movs r1, 0\n\
+	subs r0, r3, r2\n\
+	b _08122316\n\
+_08122300:\n\
+	ldrh r0, [r4]\n\
+	subs r0, 0x1\n\
+	strh r0, [r4]\n\
+	ldrh r0, [r5]\n\
+	adds r0, 0x1\n\
+	strh r0, [r5]\n\
+	adds r0, r1, 0x1\n\
+	lsls r0, 24\n\
+	lsrs r1, r0, 24\n\
+	ldrh r0, [r4]\n\
+	subs r0, r2\n\
+_08122316:\n\
+	cmp r1, r0\n\
+	bgt _08122322\n\
+	ldrh r0, [r5]\n\
+	adds r0, r7\n\
+	cmp r0, r6\n\
+	bne _08122300\n\
+_08122322:\n\
+	pop {r4-r7}\n\
+	pop {r0}\n\
+	bx r0");
+}
+#endif // NONMATCHING
+
+void LoadListMenuArrowsGfx(void)
+{
+    LoadCompressedObjectPic(&gUnknown_0859F514);
+    LoadCompressedObjectPalette(&gUnknown_0859F51C);
+}