From 49584e134b25f4b4b63c890365fb807ab4aba3f4 Mon Sep 17 00:00:00 2001
From: innocenthedgehog <56793981+innocenthedgehog@users.noreply.github.com>
Date: Fri, 16 May 2025 09:35:34 +0100
Subject: [PATCH] Switch AI considers Bulletproof ability (#6872)

---
 src/battle_ai_switch_items.c  | 4 ++++
 test/battle/ai/ai_switching.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/src/battle_ai_switch_items.c b/src/battle_ai_switch_items.c
index 4b81908349..317dc63b66 100644
--- a/src/battle_ai_switch_items.c
+++ b/src/battle_ai_switch_items.c
@@ -526,6 +526,10 @@ static bool32 FindMonThatAbsorbsOpponentsMove(u32 battler)
     {
         absorbingTypeAbilities[numAbsorbingAbilities++] = ABILITY_SOUNDPROOF;
     }
+    else if (IsBallisticMove(incomingMove) || (isOpposingBattlerChargingOrInvulnerable && IsBallisticMove(incomingMove)))
+    {
+        absorbingTypeAbilities[numAbsorbingAbilities++] = ABILITY_BULLETPROOF;
+    }
     else if (IsWindMove(incomingMove) || (isOpposingBattlerChargingOrInvulnerable && IsWindMove(incomingMove)))
     {
         absorbingTypeAbilities[numAbsorbingAbilities++] = ABILITY_WIND_RIDER;
diff --git a/test/battle/ai/ai_switching.c b/test/battle/ai/ai_switching.c
index bb33ab4489..afde8a62ab 100644
--- a/test/battle/ai/ai_switching.c
+++ b/test/battle/ai/ai_switching.c
@@ -837,6 +837,7 @@ AI_SINGLE_BATTLE_TEST("AI_FLAG_SMART_SWITCHING: AI will switch out if it has an
     PARAMETRIZE { aiMon = SPECIES_ORTHWORM; absorbingAbility = ABILITY_EARTH_EATER; move = MOVE_EARTHQUAKE;}
     PARAMETRIZE { aiMon = SPECIES_BRONZONG; absorbingAbility = ABILITY_LEVITATE; move = MOVE_EARTHQUAKE;}
     PARAMETRIZE { aiMon = SPECIES_ELECTRODE; absorbingAbility = ABILITY_SOUNDPROOF; move = MOVE_HYPER_VOICE;}
+    PARAMETRIZE { aiMon = SPECIES_CHESNAUGHT; absorbingAbility = ABILITY_BULLETPROOF; move = MOVE_SLUDGE_BOMB;}
     PARAMETRIZE { aiMon = SPECIES_SHIFTRY; absorbingAbility = ABILITY_WIND_RIDER; move = MOVE_HURRICANE;}
     GIVEN {
         ASSUME(B_REDIRECT_ABILITY_IMMUNITY >= GEN_5);