Pokemon related decomp (#47)

* decompile last function in pokemon_1.s

* some pokemon related decomp

* more decomp

* decomp another function

* decompile function

* another one

* decompile GetPokemonLevelData

* decompile more

* more decomp

* more structure and decomp

* decomp another function (need to do some renaming)

* rename some stuff

* I cant do anything without committing these 2 files

1 files changed, 684 insertions, 3 deletions

diff --git a/src/pokemon_mid.c b/src/pokemon_mid.c
index d297ca0..56d49fe 100644
--- a/src/pokemon_mid.c
+++ b/src/pokemon_mid.c
@@ -1,5 +1,7 @@
 #include "global.h"
 #include "pokemon.h"
+#include "item.h"
+#include "file_system.h"
 
 extern struct gPokemon *gMonsterParameters;
 extern const char gUnknown_8107600[];
@@ -8,12 +10,124 @@ extern const char gUnownLetters[];
 extern const char gUnknown_8107630[];
 extern const char gUnknown_8107638[];
 extern const char gUnknown_810763C[];
+extern const char gUnknown_810768C[];  // lvmp%03d\0
+extern struct FileArchive gSystemFileArchive;
+extern s16 gUnknown_810ACB8;  // 0x14d
+extern s16 gUnknown_810ACBA;  // 0x14d
+extern s16 gUnknown_810ACBC;  // 0x14d
+extern s16 gUnknown_810ACBE;  // 0x14d
+
+// wram data:
+extern u16 gLevelCurrentPokeId;
+extern struct LevelData gLevelCurrentData[];
+
 
 extern void ExpandPlaceholdersBuffer(u8 *buffer, const char *r2, ...);
-extern s16 sub_808E770(u32);
+extern s16 GetBaseSpecies(u32);
 extern void sub_80922B4(u8 *, u8 *, s32);
+extern int sprintf(char *, const char *, ...);
+extern u32 ReturnIntFromChar(u8 r0);
+extern void CopyStringtoBuffer(char *r0, char *r1);
+extern void sub_8093F50(void*, void*);
+extern void sub_80943A0(void*, s32);
+extern void xxx_unk_to_pokemonstruct_808DF44(struct PokemonStruct*, struct unkStruct_808DE50*);
+extern u8* sub_8092B18(s16);
+extern u8* sub_808E07C(u8* a1, u16* a2);
+extern u8* sub_8092B54(s32);
 
-extern void ExpandPlaceholdersBuffer(u8 *buffer, const char *r2, ...);
+struct unkStruct_8107654 {
+  s16 unk0;
+  s16 fill2;
+  s32 unk4;
+};
+
+extern u8 gUnknown_8107645[12];
+extern struct unkStruct_8107654 gUnknown_8107654[6];
+extern struct gPokemon *gMonsterParameters;
+extern struct FileArchive gMonsterFileArchive;
+extern const char gUnknown_8107684[];
+extern struct unkStruct_203B45C *gRecruitedPokemonRef;
+
+// bool8 sub_808D750(s16 index_) {
+//     s32 i;
+//     register s32 index asm("r8") = index_;
+//     s32 count = 0;
+//     s32 size_count = 0;
+
+//     for (i = 0; i < 413; i++) {
+//         register struct PokemonStruct* pokemon = &i[gRecruitedPokemonRef->pokemon];
+//         register u16 unk0 = pokemon->unk0;
+//         if ((unk0 & 1) && ((pokemon->unk0 >> 1) & 1)) {
+//             size_count += GetPokemonSize(pokemon->speciesNum);
+//             count++;
+//         }
+//     }
+
+//     if (count < 4) {
+//         struct PokemonStruct* pokemon;
+
+//         pokemon = &gRecruitedPokemonRef->pokemon[index];
+
+//         size_count += GetPokemonSize(pokemon->speciesNum);
+//         if (size_count < 7) {
+//             return TRUE;
+//         }
+//     }
+//     return FALSE;
+// }
+
+
+void PeekPokemonItem(s16 index_, struct HeldItem* item) {
+    s32 index = index_;
+    struct PokemonStruct* pokemon = &gRecruitedPokemonRef->pokemon[index];
+    item->itemIndex = pokemon->heldItem.itemIndex;
+    item->numItems = pokemon->heldItem.numItems;
+}
+
+void GivePokemonItem(s16 index_, struct HeldItem* item) {
+    s32 index = index_;
+    struct PokemonStruct* pokemon = &gRecruitedPokemonRef->pokemon[index];
+    pokemon->heldItem.itemIndex = item->itemIndex;
+    pokemon->heldItem.numItems = item->numItems;
+}
+
+bool8 IsPokemonRenamed(struct PokemonStruct* pokemon) {
+    char species_name[20];
+    char* species = GetMonSpecies(pokemon->speciesNum);
+    s32 i;
+    CopyStringtoBuffer(species_name, species);
+    for (i = 0; i < 10; i++) {
+        if (pokemon->name[i] != species_name[i]) {
+            return FALSE;
+        }
+        if (!pokemon->name[i]) {
+            return TRUE;
+        }
+    }
+    return TRUE;
+}
+
+bool8 ComparePokemonNames(s16 a1, s16 a2) {
+    s32 index1 = a1;
+    s32 index2 = a2;
+    u8* name1 = gRecruitedPokemonRef->pokemon[index1].name;
+    u8* name2 = gRecruitedPokemonRef->pokemon[index2].name;
+
+    s32 i;
+    for (i = 0; i < 10; i++) {
+        s32 c1 = ReturnIntFromChar(*name1);
+        s32 c2 = ReturnIntFromChar(*name2);
+        if (c1 > c2) {
+            return TRUE;
+        }
+        if (c1 < c2) {
+            return FALSE;
+        }
+        name1++;
+        name2++;
+    }
+    return FALSE;
+}
 
 void CopySpeciesNametoBuffer(u8 * buffer, s16 index)
 {
@@ -40,7 +154,7 @@ void sub_808D930(u8 *buffer, s16 index)
   const char *preload;
   
   newIndex = index;
-  if (sub_808E770(newIndex) == SPECIES_UNOWN) {
+  if (GetBaseSpecies(newIndex) == SPECIES_UNOWN) {
     preload = gUnknown_8107630; // %s%c
     unownString = GetMonSpecies(SPECIES_UNOWN);
     unownIndex = GetUnownIndex(newIndex);
@@ -90,3 +204,570 @@ void sub_808DA34(u8 *buffer, struct PokemonStruct *pokemon)
 {
   sub_80922B4(buffer, pokemon->name, 10);
 }
+
+bool8 sub_808DA44(s32 a1_, u32 a2_) 
+{
+  // this is the dumbest thing ever, but just making a1 a s16 and
+  // a2 a u8 did weird stuff with shifting...
+  s32 a1 = (s16)a1_;
+  u32 a2 = (u8)a2_;
+  if (a2 > 0xc) {
+    s32 i;
+    struct unkStruct_8107654 data[6];
+    memcpy(data, gUnknown_8107654, 6 * sizeof(struct unkStruct_8107654));
+
+    for (i = 0; i < 10 && data[i].unk0; i++) {
+      if (data[i].unk0 == a1 && data[i].unk4 == a2) {
+        return 1;
+      }
+    }
+    return 0;
+  }
+  else {
+    return gUnknown_8107645[a2];
+  }
+}
+
+u8 *GetCategoryString(s16 index)
+{
+    return gMonsterParameters[index].category;
+}
+
+u8 GetPokemonSize(s16 index)
+{
+    return gMonsterParameters[index].size;
+}
+
+u8 GetShadowSize(s16 index)
+{
+    return gMonsterParameters[index].shadow_size;
+}
+
+s32 GetMoveSpeed(s16 index)
+{
+    return gMonsterParameters[index].move_speed;
+}
+
+u8 GetWalkableTiles(s16 index)
+{
+    return gMonsterParameters[index].walkable_tiles;
+}
+
+u8 GetUnk1B(s16 index)
+{
+    return ((u8)(gMonsterParameters[index].unk1B) << 25) >> 24;
+}
+
+bool8 GetIsMoving(s16 index)
+{
+    return gMonsterParameters[index].isMoving;
+}
+
+u8 GetUnk1D(s16 index)
+{
+    return gMonsterParameters[index].unk1D;
+}
+
+u16 GetLowKickDmg(s16 index)
+{
+    return gMonsterParameters[index].lowkick_dmg;
+}
+
+u16 GetSizeOrbDmg(s16 index)
+{
+    return gMonsterParameters[index].sizeorb_dmg;
+}
+
+u8 GetFriendArea(s16 index)
+{
+    return gMonsterParameters[index].friend_area;
+}
+
+u16 GetBaseHP(s16 index)
+{
+    return gMonsterParameters[index].base_hp;
+}
+
+bool8 GetUnk33(s16 index)
+{
+    return gMonsterParameters[index].unk33;
+}
+
+u8 GetUnk12(s16 index)
+{
+    return gMonsterParameters[index].unk12;
+}
+
+s16 GetPokemonEvolveFrom(s16 index)
+{
+    return gMonsterParameters[index].pre.evolve_from;
+}
+
+u16 GetPokemonAttSpatt(s16 index, u32 r1)
+{
+    return gMonsterParameters[index].base_att_spatt[r1];
+}
+
+u16 GetPokemonDefSpdef(s16 index, u32 r1)
+{
+    return gMonsterParameters[index].base_def_spdef[r1];
+}
+
+u8 GetPokemonType(s32 index, u32 typeIndex)
+{
+    s16 newIndex = index;
+    return gMonsterParameters[newIndex].types[typeIndex];
+}
+
+u8 GetPokemonAbility(s16 index, u32 abilityIndex)
+{
+    return gMonsterParameters[index].abilities[abilityIndex];
+}
+
+s16 GetDexInternalNo(s16 index, u32 r1)
+{
+    return gMonsterParameters[index].dexInternal[r1];
+}
+
+s16 GetBaseRecruit(s16 index)
+{
+    return gMonsterParameters[index].base_recruit;
+}
+
+s16 GetAlphabetParentNo(s16 index, s32 r1)
+{
+    return gMonsterParameters[index].alphabetParent[r1];
+}
+
+
+s16 GetInternalNo(s16 index)
+{
+    return gMonsterParameters[index].dexInternal[1];
+}
+
+s32 CalculateEXPGain(s16 index, s32 level)
+{
+    s32 baseEXP = gMonsterParameters[index].base_exp;
+    return baseEXP + (baseEXP * (level - 1)) / 10;
+}
+
+s16 GetPokemonEvolveConditions(s16 index, struct unkEvolve *r1)
+{
+    struct EvolveStruct1 temp2;
+    struct EvolveNeeds temp1;
+    temp1 = gMonsterParameters[index].need;
+    temp2 = gMonsterParameters[index].pre;
+    r1->conditions = temp2;
+    r1->needs = temp1;
+    // The return value is not used anywhere, but necessary for the function to match.
+    return index;
+}
+
+u8 GetPokemonOverworldPalette(s16 index, u32 r1)
+{
+    // Had to have this cast to match
+    u32 temp;
+    temp = index;
+    if (r1 != 0)
+    {
+        return 10;
+    }
+    else 
+    {
+        return gMonsterParameters[temp].overworld_palette;
+    }
+}
+
+struct OpenedFile *OpenPokemonDialogueSpriteFile(s16 index)
+{
+    // Looks like this loads the dialogue sprite for the pokemon
+
+    char buffer[0xC];
+    if(gMonsterParameters[index].dialogue_sprites == 0)
+    {
+        return NULL;
+    }
+    sprintf(buffer, gUnknown_8107684, index); // "kao%03d"
+    return OpenFile(buffer, &gMonsterFileArchive);
+}
+
+struct OpenedFile *GetDialogueSpriteDataPtr(s16 index)
+{
+    // Looks like this loads the dialogue sprite for the pokemon
+
+    char buffer[0xC];
+    if(gMonsterParameters[index].dialogue_sprites == 0)
+    {
+        return NULL;
+    }
+    sprintf(buffer, gUnknown_8107684, index); // "kao%03d"
+    return OpenFileAndGetFileDataPtr(buffer, &gMonsterFileArchive);
+}
+
+bool8 IsPokemonDialogueSpriteAvail(s16 index, s32 r1)
+{
+    // checking to see if dialogue sprite is available??
+    return (gMonsterParameters[index].dialogue_sprites >> r1) & 1;
+}
+
+void xxx_pokemonstruct_index_to_unk_808DE30(void* r0, u32 r1)
+{
+    xxx_pokemonstruct_to_unk_808DE50(r0, &gRecruitedPokemonRef->pokemon[r1], r1);
+}
+
+void xxx_pokemonstruct_to_unk_808DE50(struct unkStruct_808DE50 * a1, struct PokemonStruct *pokemon, s32 a3)
+{
+    s32 i;
+    struct HeldItem* held;
+    struct ItemSlot* slot;
+    u32 somestruct_80943A0;
+    u32 somestruct2_80943A0;
+
+    a1->unk0 = pokemon->unk0;
+    a1->unkHasNextStage = pokemon->unkHasNextStage;
+    a1->IQ = pokemon->IQ;
+    a1->unk4C = pokemon->unk20;
+    sub_808E6F4(&a1->unk54);
+    a1->unk4 = pokemon->unk4;
+    a1->unk2 = pokemon->unk2;
+    a1->unkA = a3;
+    a1->speciesNum = pokemon->speciesNum;
+    a1->unk50 = pokemon->unk24;
+    a1->unk12 = pokemon->pokeHP;
+    a1->unk10 = pokemon->pokeHP;
+
+    for (i = 0; i < 2; i++) {
+        a1->offense.att[i] = pokemon->offense.att[i];
+        a1->offense.def[i] = pokemon->offense.def[i];
+    }
+
+    a1->unk18 = pokemon->unk1C;
+    sub_8093F50(&a1->unk1C, &pokemon->unk2C);
+
+    for (i = 0; i < 10; i++) {
+        a1->name[i] = pokemon->name[i];
+    }
+    
+    held = &pokemon->heldItem;
+    slot = &a1->itemSlot;
+
+    if ((u32)(-held->itemIndex | held->itemIndex) >> 31) {
+        HeldItemToSlot(slot, held);
+    }
+    else {
+        slot->itemIndex = 0;
+        slot->numItems = 0;
+        slot->unk0 = 0;
+    }  
+  sub_80943A0(&somestruct_80943A0, 100);
+  a1->unk44 = somestruct_80943A0;
+  sub_80943A0(&somestruct2_80943A0, 100);
+  a1->unk48 = somestruct2_80943A0;
+}
+
+void xxx_unk_to_pokemonstruct_index_808DF2C(s32 a1, struct unkStruct_808DE50* a2)
+{
+    xxx_unk_to_pokemonstruct_808DF44(&a1[gRecruitedPokemonRef->pokemon], a2);
+}
+
+extern void sub_8093FA8(struct unkPokeSubStruct_2C*, struct unkPokeSubStruct_2C*);
+
+
+void xxx_unk_to_pokemonstruct_808DF44(struct PokemonStruct* pokemon, struct unkStruct_808DE50* a2)
+{
+    s32 i;
+
+    pokemon->unk0 = a2->unk0;
+    pokemon->unkHasNextStage = a2->unkHasNextStage;
+    pokemon->IQ = a2->IQ;
+    pokemon->unk20 = a2->unk4C;
+    pokemon->unk4 = a2->unk4;
+    pokemon->unk2 = a2->unk2;
+    pokemon->speciesNum = a2->speciesNum;
+    pokemon->unk24 = a2->unk50;
+    pokemon->pokeHP = a2->unk12;
+
+    for (i = 0; i < 2; i++) {
+        pokemon->offense.att[i] = a2->offense.att[i];
+        pokemon->offense.def[i] = a2->offense.def[i];
+    }
+
+    pokemon->unk1C = a2->unk18;
+    sub_8093FA8(pokemon->unk2C, a2->unk1C);
+
+    for (i = 0; i < 10; i++) {
+        pokemon->name[i] = a2->name[i];
+    }
+
+    if (a2->itemSlot.unk0 & 1) {
+        SlotToHeldItem(&pokemon->heldItem, &a2->itemSlot);
+    }
+    else {
+        pokemon->heldItem.itemIndex = 0;
+    }
+}
+
+void sub_808DFDC(s32 a1, struct unkStruct_808DE50* a2)
+{
+    // transfer item from unk to pokemon at index
+    struct PokemonStruct* pokemon = &gRecruitedPokemonRef->pokemon[a1];
+    if (a2->itemSlot.unk0 & 1) {    
+        SlotToHeldItem(&pokemon->heldItem, &a2->itemSlot);
+    }
+    else {
+        pokemon->heldItem.itemIndex = 0;
+    }
+}
+
+void GetPokemonLevelData(struct LevelData* a1, s16 _id, s32 a3)
+{
+  u8 buffer[12];
+  s32 id = _id;
+
+  if ((s16)gLevelCurrentPokeId != id)
+  {
+    struct OpenedFile *file;
+
+    gLevelCurrentPokeId = id;
+    // lvmp%03d\0
+    sprintf(buffer, gUnknown_810768C, id);
+    file = OpenFileAndGetFileDataPtr(buffer, &gSystemFileArchive);
+    DecompressATFile((char*)gLevelCurrentData, 0, file);
+    CloseFile(file);
+  }
+  a3 -= 1;
+  if ( a3 < 0 )
+    a3 = 0;
+
+   *a1 = gLevelCurrentData[a3];
+}
+
+u8* sub_808E07C(u8* a1, u16* a2)
+{
+    u32 r1 = *a1++;
+    u32 r3;
+    if (r1 & 0x80) {
+        r3 = *a1++;
+    }
+    else {
+        r3 = r1;
+        r1 = 0;
+    }
+#ifdef NONMATCHING
+    // wrong order
+    r1 &= 0x7f;
+    r3 &= 0x7f;
+    *a2 = (r1 << 7) | r3;
+#else
+    {
+        register u32 mask asm("r0") = 0x7f;
+        r3 &= mask;
+        r1 &= mask;
+        *a2 = (r1 << 7) | r3;
+    }
+#endif
+    return a1;
+}
+
+s32 sub_808E0AC(u16* a1, s16 species, s32 a3, s32 a4)
+{
+  u8* stream;
+  u16 result;  // struct?
+  s32 count;
+  register s32 _species asm("r2");  // weird regalloc
+  
+  _species = (s16)species;
+  count = 0;
+
+  if (species == SPECIES_DECOY) return 0;
+  if (species == SPECIES_NONE) return 0;
+  if (species == SPECIES_MUNCHLAX) return 0;
+  // get stream
+  stream = sub_8092B18(_species);
+
+  while (*stream)
+  {
+    u8 v12;
+
+    // read from stream
+    stream = sub_808E07C(stream, &result);
+    v12 = *stream++;
+
+    if (v12 > a3)
+      break;
+    if (v12 == a3) {
+      bool8 cond = 1;
+      // I don't think these are species IDs
+      // the pokemon they would correspond to are pretty random if they are
+      // shuckle, heracross, pupitar, vibrava
+      if ((result == 238) && (a4 < gUnknown_810ACB8)) cond = 0;
+      if ((result == 239) && (a4 < gUnknown_810ACBA)) cond = 0;
+      if ((result == 272) && (a4 < gUnknown_810ACBC)) cond = 0;
+      if ((result == 354) && (a4 < gUnknown_810ACBE)) cond = 0;
+
+      if (cond) {
+        if (count < 16) {
+          *a1++ = result;
+          ++count;
+        }
+      }
+    }
+  }
+  return count;
+}
+
+bool8 sub_808E190(u16 a1, s16 _species) 
+{
+  u16 result;
+  u16 result2;
+  s32 species = _species;  // r4
+  u8* ptr;
+  
+  if (species == SPECIES_DECOY) return 0;
+  if (species == SPECIES_NONE) return 0;
+  if (species == SPECIES_MUNCHLAX) return 0;
+  if (a1 == 352) return 0;
+
+  ptr = sub_8092B18(species);
+  while (*ptr) {
+    ptr = sub_808E07C(ptr, &result);
+    ptr++;
+    if (a1 == result) {
+      return 1;
+    }
+  }
+
+  ptr = sub_8092B54(species);
+  while (*ptr) {
+    ptr = sub_808E07C(ptr, &result2);
+    if (result2 == a1) {
+      return 1;
+    }
+  }
+  return 0;
+}
+
+
+s32 sub_808E218(struct unkStruct_808E218_arg* a1, struct PokemonStruct* pokemon) 
+{
+  s32 i;
+  s32 count;
+  struct EvolveStage evolve_sequence[3];
+  s32 sequence_length;
+
+  count = 0;
+  a1->count = 0;
+  if (pokemon->speciesNum == SPECIES_DECOY) return 0;
+  if (pokemon->speciesNum == SPECIES_NONE) return 0;
+  if (pokemon->speciesNum == SPECIES_MUNCHLAX) return 0;
+
+  sequence_length = GetEvolutionSequence(pokemon, evolve_sequence);
+  for (i = 0; i < sequence_length; i++) {
+    u8* ptr;
+    u16 result;
+
+    ptr = sub_8092B18(evolve_sequence[i].speciesNum);
+    while (*ptr) {
+      s32 value;
+      ptr = sub_808E07C(ptr, &result);
+      value = *ptr++;
+
+      if (value > evolve_sequence[i].unkHasNextStage) {
+        break;
+      }
+
+      if (count < NUM_SPECIES) {
+        s32 j;
+        bool8 cond = 1;
+        // I don't think these are species IDs
+        // the pokemon they would correspond to are pretty random if they are
+        // shuckle, heracross, pupitar, vibrava
+        if ((result == 238) && (pokemon->IQ < gUnknown_810ACB8)) cond = 0;
+        if ((result == 239) && (pokemon->IQ < gUnknown_810ACBA)) cond = 0;
+        if ((result == 272) && (pokemon->IQ < gUnknown_810ACBC)) cond = 0;
+        if ((result == 354) && (pokemon->IQ < gUnknown_810ACBE)) cond = 0;
+
+        for (j = 0; j < 4; j++) {
+          if ((pokemon->unk2C[j].unk0 & 1) && pokemon->unk2C[j].unk2 == result) {
+            cond = 0;
+          }
+        }
+
+        if (cond) {
+          s32 k;
+          for (k = 0; k < count && a1->unk0[k] != result; k++) {}
+
+          if (k == count) {
+            a1->unk0[count++] = result;
+          }
+        }
+      }
+    }
+  }
+
+  a1->count = count;
+  return count;
+}
+
+
+s32 GetEvolutionSequence(struct PokemonStruct* pokemon, struct EvolveStage* a2) 
+{
+#ifdef NONMATCHING
+  s32 count;
+  s32 species;
+  s32 i;
+
+  a2[0].specesNum = pokemon->speciesNum;
+  a2[0].unkHasNextStage = pokemon->unkHasNextStage;
+
+  count = 1;
+  species = pokemon->speciesNum;
+  i = 0;
+
+  for (; i < 2; i++) {
+      if (!pokemon->unkC[i].unk0) {
+          break;
+      }
+      species = GetPokemonEvolveFrom(species);
+      if (!species) {
+          break;
+      }
+      a2[1 + i].speciesNum = species;
+      a2[1 + i].unkHasNextStage = pokemon->unkC[i].unk0;
+      // wrong increment order:
+      count++;
+  }
+  return count;
+#else
+  s32 count;
+  s32 species;
+  s32 i;
+  struct EvolveStage* stage;
+  struct unkPokeSubStruct_C* has_next_stage;
+
+  a2[0].speciesNum = pokemon->speciesNum;
+  a2[0].unkHasNextStage = pokemon->unkHasNextStage;
+
+  count = 1;
+  species = pokemon->speciesNum;
+  i = 0;
+  has_next_stage = pokemon->unkC;
+  stage = &a2[1];
+
+  for (; i < 2; i++) {
+      if (!has_next_stage->unk0) {
+          break;
+      }
+      species = GetPokemonEvolveFrom(species);
+      if (!species) {
+          break;
+      }
+      stage->speciesNum = species;
+      stage->unkHasNextStage = has_next_stage->unk0;
+      stage++;
+      count++;
+      has_next_stage++;
+  }
+  return count;
+#endif
+}
\ No newline at end of file