From 4a714225e526a7af3bbb815a9e0553cea2f9700e Mon Sep 17 00:00:00 2001
From: PhallenTree <168426989+PhallenTree@users.noreply.github.com>
Date: Wed, 29 Oct 2025 13:25:05 +0000
Subject: [PATCH] Fixes hazards and switch-in items not being reset when
 switching in (#8074)

---
 src/battle_main.c            |  3 +++
 src/battle_script_commands.c |  1 -
 test/battle/hazards.c        | 23 +++++++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/src/battle_main.c b/src/battle_main.c
index 6aa4c7212d..99464151a8 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -3235,6 +3235,9 @@ void SwitchInClearSetData(u32 battler, struct Volatiles *volatilesCopy)
     gBattleStruct->battlerState[battler].stompingTantrumTimer = 0;
     gBattleStruct->palaceFlags &= ~(1u << battler);
     gBattleStruct->battlerState[battler].canPickupItem = FALSE;
+    gBattleStruct->hazardsCounter = 0;
+    gDisableStructs[battler].hazardsDone = FALSE;
+    gSpecialStatuses[battler].switchInItemDone = FALSE;
 
     ClearPursuitValuesIfSet(battler);
 
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 223a4bd382..6d9ba3d61e 100755
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -7891,7 +7891,6 @@ static bool32 DoSwitchInEffectsForBattler(u32 battler)
             gBattleStruct->hpOnSwitchout[GetBattlerSide(i)] = gBattleMons[i].hp;
         }
 
-        gDisableStructs[battler].hazardsDone = FALSE;
         gBattleStruct->battlerState[battler].forcedSwitch = FALSE;
         return FALSE;
     }
diff --git a/test/battle/hazards.c b/test/battle/hazards.c
index 9c974bb7b1..17ecb41f5c 100644
--- a/test/battle/hazards.c
+++ b/test/battle/hazards.c
@@ -38,3 +38,26 @@ SINGLE_BATTLE_TEST("Hazards are applied based on order of set up")
         EXPECT_EQ(gBattleStruct->hazardsQueue[0][5], HAZARDS_NONE);
     }
 }
+
+SINGLE_BATTLE_TEST("Hazards are applied correctly after a battler faints")
+{
+    GIVEN {
+        ASSUME(GetMoveEffect(MOVE_FINAL_GAMBIT) == EFFECT_FINAL_GAMBIT);
+        PLAYER(SPECIES_WYNAUT);
+        PLAYER(SPECIES_WOBBUFFET) { HP(1); }
+        PLAYER(SPECIES_WYNAUT);
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        TURN { MOVE(opponent, MOVE_STEALTH_ROCK);
+               MOVE(player, MOVE_FINAL_GAMBIT);
+               SEND_OUT(player, 1);
+               SEND_OUT(player, 2); }
+    } SCENE {
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_STEALTH_ROCK, opponent);
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_FINAL_GAMBIT, player);
+        MESSAGE("Wynaut fainted!");
+        MESSAGE("Pointed stones dug into Wobbuffet!");
+        MESSAGE("Wobbuffet fainted!");
+        MESSAGE("Pointed stones dug into Wynaut!");
+    }
+}