About halfway done with pokenav_unk_1.s

src/pokenav_unk_1.c

@@ -1,17 +1,35 @@
 #include "global.h"
 #include "pokenav.h"
 #include "event_data.h"
+#include "main.h"
+#include "sound.h"
+#include "constants/songs.h"
 
 struct Pokenav1Struct
 {
     u16 unk0;
-    u16 unk2;
+    s16 unk2;
     u16 unk4;
     u16 unk6;
-    u8 unk8[8];
+    u32 unk8;
+    u32 (*unkC)(struct Pokenav1Struct*);
 };
 
-extern void sub_81C939C(struct Pokenav1Struct *state);
+
+extern u32 sub_81C76AC(void);
+extern u32 sub_81C963C(struct Pokenav1Struct *a0);
+extern u32 sub_81C96FC(struct Pokenav1Struct *a0);
+extern u32 sub_81C9814(void);
+extern void sub_81C97B0(struct Pokenav1Struct *a0, u32 a1);
+
+u32 sub_81C9600(struct Pokenav1Struct *a0);
+u32 sub_81C9588(struct Pokenav1Struct *a0);
+u32 sub_81C9520(struct Pokenav1Struct *a0);
+u32 sub_81C943C(struct Pokenav1Struct *a0);
+u32 (*sub_81C93EC(void))(struct Pokenav1Struct*);
+void sub_81C939C(struct Pokenav1Struct *state);
+
+extern u8 gUnknown_0861FC59[];
 
 u8 sub_81C9268(void)
 {
@@ -40,4 +58,239 @@ u32 sub_81C9298(void)
     sub_81C939C(state);
 
     return 1;
+}
+
+u32 sub_81C92CC(void)
+{
+    struct Pokenav1Struct *state = AllocSubstruct(1, sizeof(struct Pokenav1Struct));
+    u8 v0;
+
+    if (state == NULL)
+        return 0;
+    
+    state->unk0 = sub_81C9268();
+    state->unk2 = 2;
+    state->unk4 = 2;
+    state->unk6 = 0;
+    sub_81C939C(state);
+
+    return 1;
+}
+
+u32 sub_81C9304(void)
+{
+    struct Pokenav1Struct *state = AllocSubstruct(1, sizeof(struct Pokenav1Struct));
+    u8 v0;
+
+    if (state == NULL)
+        return 0;
+    
+    state->unk0 = sub_81C9268();
+    state->unk2 = 3;
+    state->unk4 = 3;
+    sub_81C939C(state);
+
+    return 1;
+}
+
+u32 sub_81C9338(void)
+{
+    struct Pokenav1Struct *state = AllocSubstruct(1, sizeof(struct Pokenav1Struct));
+    u8 v0;
+
+    if (state == NULL)
+        return 0;
+    
+    state->unk0 = 3;
+    state->unk2 = 0;
+    state->unk4 = 5;
+    state->unk6 = 0;
+    sub_81C939C(state);
+
+    return 1;
+}
+
+u32 sub_81C9368(void)
+{
+    struct Pokenav1Struct *state = AllocSubstruct(1, sizeof(struct Pokenav1Struct));
+    u8 v0;
+
+    if (state == NULL)
+        return 0;
+    
+    state->unk0 = 4;
+    state->unk2 = sub_81C76AC();
+    state->unk4 = 8 + state->unk2;
+    state->unk6 = 0;
+    sub_81C939C(state);
+
+    return 1;
+}
+
+void sub_81C939C(struct Pokenav1Struct *state)
+{
+    switch (state->unk0)
+    {
+    case 0:
+        SetPokenavMode(0);
+        // fallthrough
+    case 1:
+    case 2:
+        state->unkC = sub_81C93EC();
+        break;
+    case 3:
+        state->unkC = sub_81C963C;
+        break;
+    case 4:
+        state->unkC = sub_81C96FC;
+        break;
+    }
+}
+
+u32 (*sub_81C93EC(void))(struct Pokenav1Struct*)
+{
+    switch (GetPokenavMode())
+    {
+    default:
+    case 0:
+        return sub_81C943C;
+    case 1:
+        return sub_81C9520;
+    case 2:
+        return sub_81C9588;
+    }
+}
+
+u32 sub_81C941C(void)
+{
+    struct Pokenav1Struct *state = GetSubstructPtr(1);
+    return state->unkC(state);
+}
+
+void sub_81C9430(void)
+{
+    FreePokenavSubstruct(1);
+}
+
+u32 sub_81C943C(struct Pokenav1Struct *a0)
+{
+    if (sub_81C9814() != 0)
+        return 1;
+
+    if (gMain.newKeys & A_BUTTON)
+    {
+        switch (gUnknown_0861FC59[a0->unk2 + a0->unk0 * 6])
+        {
+        case 0:
+            a0->unk6 = gSaveBlock2Ptr->regionMapZoom ? 2 : 1;
+            sub_81C97B0(a0, UNKNOWN_POKENAV_OFFSET + 6);
+            return 8;
+        case 1:
+            a0->unk0 = 3;
+            a0->unk2 = 0;
+            a0->unk4 = gUnknown_0861FC59[18];
+            a0->unkC = sub_81C963C;
+            return 2;
+        case 2:
+            a0->unk6 = 6;
+            sub_81C97B0(a0, UNKNOWN_POKENAV_OFFSET + 11);
+            return 8;
+        case 3:
+            if (CanViewRibbonsMenu())
+            {
+                a0->unk6 = 9;
+                sub_81C97B0(a0, UNKNOWN_POKENAV_OFFSET + 12);
+                return 8;
+            }
+            else
+            {
+                a0->unkC = sub_81C9600;
+                return 6;
+            }
+        case 4:
+            return -1;
+        }
+    }
+    
+    if (gMain.newKeys & B_BUTTON)
+        return -1;
+
+    return 0;
+}
+
+u32 sub_81C9520(struct Pokenav1Struct *a0)
+{
+    if (sub_81C9814() != 0)
+        return 1;
+    
+    if (gMain.newKeys & A_BUTTON)
+    {
+        if (gUnknown_0861FC59[a0->unk2 + a0->unk0 * 6] == 2)
+        {
+            a0->unk6 = 6;
+            sub_81C97B0(a0, UNKNOWN_POKENAV_OFFSET + 11);
+            return 8;
+        }
+        else
+        {
+            PlaySE(SE_HAZURE);
+            return 0;
+        }
+    }
+    
+    if (gMain.newKeys & B_BUTTON)
+    {
+        PlaySE(SE_HAZURE);
+        return 0;
+    }
+    
+    return 0;
+}
+
+u32 sub_81C9588(struct Pokenav1Struct *a0)
+{
+    if (sub_81C9814() != 0)
+        return 1;
+    
+    if (gMain.newKeys & A_BUTTON)
+    {
+        u32 v0 = gUnknown_0861FC59[a0->unk2 + a0->unk0 * 6];
+        if (v0 != 2 && v0 != 4)
+        {
+            PlaySE(SE_HAZURE);
+            return 0;
+        }
+        else if (v0 == 2)
+        {
+            a0->unk6 = 6;
+            sub_81C97B0(a0, UNKNOWN_POKENAV_OFFSET + 11);
+            return 8;
+        }
+        else
+        {
+            return -1;
+        }
+    }
+    else if (gMain.newKeys & B_BUTTON)
+    {
+        return -1;
+    }
+    return 0;
+}
+
+u32 sub_81C9600(struct Pokenav1Struct *a0)
+{
+    if (sub_81C9814() != 0)
+    {
+        a0->unkC = sub_81C93EC();
+        return 1;
+    }
+
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        a0->unkC = sub_81C93EC();
+        return 7;
+    }
+
+    return 0;
 }