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path: root/src/field_poison.c
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#include "global.h"
#include "field_message_box.h"
#include "pokemon.h"
#include "script.h"
#include "string_util.h"
#include "task.h"

extern void AdjustFriendship(struct Pokemon *, u8);
extern u8 pokemon_ailments_get_primary(u32);
extern void DoFieldPoisonEffect(void);

extern struct Pokemon gPlayerParty[6];
extern u16 gScriptResult;
extern u8 fieldPoisonText_PokemonFainted[];

bool32 CheckMonIsValid(struct Pokemon *pkmn)
{
    // UB: Too few arguments for function 'GetMonData'
    u16 species2 = GetMonData(pkmn, MON_DATA_SPECIES2);
    
    if (species2 == 0 || species2 == 0x19C)
        return FALSE;
    else
        return TRUE;
}

bool32 AllMonsFainted(void)
{
    struct Pokemon *pkmn = &gPlayerParty[0];
    int i;
    
    for (i = 0; i < 6; i++, pkmn++)
    {
        // UB: Too few arguments for function 'GetMonData'
        if (CheckMonIsValid(pkmn) && GetMonData(pkmn, MON_DATA_HP) != 0)
            return FALSE;
    }
    return TRUE;
}

void MonFaintFromPoisonOnField(u8 partyMember)
{
    struct Pokemon *pkmn = &gPlayerParty[partyMember];
    u32 val = 0;
    
    AdjustFriendship(pkmn, 7);
    SetMonData(pkmn, MON_DATA_STATUS, (u8*)&val);
    GetMonData(pkmn, MON_DATA_NICKNAME, gStringVar1);
    StringGetEnd10(gStringVar1);
}

bool32 CheckMonFaintedFromPoison(u8 partyMember)
{
    struct Pokemon *pkmn = &gPlayerParty[partyMember];
    
    // UB: Too few arguments for function 'GetMonData'
    if (CheckMonIsValid(pkmn) && GetMonData(pkmn, MON_DATA_HP) == 0
     && pokemon_ailments_get_primary(GetMonData(pkmn, MON_DATA_STATUS)) == 1)
        return TRUE;
    else
        return FALSE;
}

//Task data
enum
{
    TD_STATE,
    TD_PARTY_MEMBER,
};

void Task_WhiteOut(u8 taskId)
{
    s16 *taskData = gTasks[taskId].data;
    
    switch (taskData[TD_STATE])
    {
        case 0: //Check if Pokemon have fainted due to poison
            while (taskData[TD_PARTY_MEMBER] < 6)
            {
                if (CheckMonFaintedFromPoison(taskData[TD_PARTY_MEMBER]))
                {
                    MonFaintFromPoisonOnField(taskData[TD_PARTY_MEMBER]);
                    ShowFieldMessage(fieldPoisonText_PokemonFainted);
                    taskData[TD_STATE]++;
                    return;
                }
                taskData[TD_PARTY_MEMBER]++;
            }
            taskData[TD_STATE] = 2;
            break;
        case 1: //Wait for message box to disappear
            if (IsFieldMessageBoxHidden())
                taskData[TD_STATE]--; //Check next party member
            break;
        case 2: //Done checking Pokemon
            if (AllMonsFainted())
                gScriptResult = 1;
            else
                gScriptResult = 0;
            EnableBothScriptContexts();
            DestroyTask(taskId);
            break;
    }
}

void DoWhiteOut(void)
{
    CreateTask(Task_WhiteOut, 0x50);
    ScriptContext1_Stop();
}

u8 overworld_poison(void)
{
    struct Pokemon *pkmn = &gPlayerParty[0];
    u32 numPoisoned = 0;
    u32 numFainting = 0;
    int i;
    
    for(i = 0; i < 6; i++)
    {
        u32 hp;
        
        // UB: Too few arguments for function 'GetMonData'
        if (GetMonData(pkmn, MON_DATA_SANITY_BIT2) != 0
         && pokemon_ailments_get_primary(GetMonData(pkmn, MON_DATA_STATUS)) == 1)
        {
            hp = GetMonData(pkmn, MON_DATA_HP);
            if(hp != 0)
                hp--;
            if(hp == 0)
                numFainting++; //Pokemon will now faint due to poison
            SetMonData(pkmn, MON_DATA_HP, (u8 *)&hp);
            numPoisoned++;
        }
        pkmn++;
    }
    if(numFainting != 0 || numPoisoned != 0)
        DoFieldPoisonEffect();
    if(numFainting != 0)
        return 2;
    if(numPoisoned != 0)
        return 1;
    return 0;
}