1 files changed, 148 insertions, 0 deletions
diff --git a/src/field_poison.c b/src/field_poison.c
new file mode 100644
index 000000000..d953ab29c
--- /dev/null
+++ b/src/field_poison.c
@@ -0,0 +1,148 @@
+#include "global.h"
+#include "string_util.h"
+#include "party_menu.h"
+#include "species.h"
+#include "task.h"
+#include "field_message_box.h"
+#include "strings.h"
+#include "rom_818CFC8.h"
+#include "battle_frontier_2.h"
+#include "pokenav.h"
+#include "event_data.h"
+#include "script.h"
+#include "battle.h"
+#include "fldeff_80F9BCC.h"
+#include "field_poison.h"
+
+static bool32 sub_80F9568(struct Pokemon *pokemon)
+{
+    u16 species = GetMonData(pokemon, MON_DATA_SPECIES2);
+    if (species == SPECIES_NONE || species == SPECIES_EGG)
+    {
+        return FALSE;
+    }
+    return TRUE;
+}
+
+static bool32 sub_80F958C(void)
+{
+    int i;
+    struct Pokemon *pokemon;
+
+    for (pokemon = gPlayerParty, i = 0; i < PARTY_SIZE; i++, pokemon++)
+    {
+        if (sub_80F9568(pokemon) && GetMonData(pokemon, MON_DATA_HP) != 0)
+        {
+            return FALSE;
+        }
+    }
+    return TRUE;
+}
+
+static void sub_80F95C0(u8 partyIdx)
+{
+    struct Pokemon *pokemon = gPlayerParty + partyIdx;
+    unsigned int status = STATUS_NONE;
+    AdjustFriendship(pokemon, 0x07);
+    SetMonData(pokemon, MON_DATA_STATUS, &status);
+    GetMonData(pokemon, MON_DATA_NICKNAME, gStringVar1);
+    StringGetEnd10(gStringVar1);
+}
+
+static bool32 sub_80F960C(u8 partyIdx)
+{
+    struct Pokemon *pokemon = gPlayerParty + partyIdx;
+    if (sub_80F9568(pokemon) && GetMonData(pokemon, MON_DATA_HP) == 0 && pokemon_ailments_get_primary(GetMonData(pokemon, MON_DATA_STATUS)) == AILMENT_PSN)
+    {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static void sub_80F9654(u8 taskId)
+{
+    s16 *data = gTasks[taskId].data;
+    switch (data[0])
+    {
+        case 0:
+            for (; data[1] < PARTY_SIZE; data[1]++)
+            {
+                if (sub_80F960C(data[1]))
+                {
+                    sub_80F95C0(data[1]);
+                    ShowFieldMessage(gText_PkmnFainted3);
+                    data[0]++;
+                    return;
+                }
+            }
+            data[0] = 2;
+            break;
+        case 1:
+            if (IsFieldMessageBoxHidden())
+            {
+                data[0]--;
+            }
+            break;
+        case 2:
+            if (sub_80F958C())
+            {
+                if (InBattlePyramid() | InBattlePike() || sub_81D5C18())
+                {
+                    gSpecialVar_Result = 2;
+                }
+                else
+                {
+                    gSpecialVar_Result = 1;
+                }
+            }
+            else
+            {
+                gSpecialVar_Result = 0;
+            }
+            EnableBothScriptContexts();
+            DestroyTask(taskId);
+            break;
+    }
+}
+
+void sub_80F972C(void)
+{
+    CreateTask(sub_80F9654, 80);
+    ScriptContext1_Stop();
+}
+
+unsigned int overworld_poison(void)
+{
+    int i;
+    unsigned int hp;
+    struct Pokemon *pokemon = gPlayerParty;
+    unsigned int numPoisoned = 0;
+    unsigned int numFainted = 0;
+    for (i = 0; i < PARTY_SIZE; i++)
+    {
+        if (GetMonData(pokemon, MON_DATA_SANITY_BIT2) && pokemon_ailments_get_primary(GetMonData(pokemon, MON_DATA_STATUS)) == AILMENT_PSN)
+        {
+            hp = GetMonData(pokemon, MON_DATA_HP);
+            if (hp == 0 || --hp == 0)
+            {
+                numFainted++;
+            }
+            SetMonData(pokemon, MON_DATA_HP, &hp);
+            numPoisoned++;
+        }
+        pokemon++;
+    }
+    if (numFainted != 0 || numPoisoned != 0)
+    {
+        overworld_poison_effect();
+    }
+    if (numFainted != 0)
+    {
+        return FLDPSN_FNT;
+    }
+    if (numPoisoned != 0)
+    {
+        return FLDPSN_PSN;
+    }
+    return FLDPSN_NONE;
+}