From bb4a87676846948d2605940830db8d11c4479dce Mon Sep 17 00:00:00 2001
From: FosterProgramming <jamiefosterandco@gmail.com>
Date: Thu, 16 Oct 2025 21:34:40 +0200
Subject: [PATCH] Fix Focus Energy boosting crit by the wrong amount with gen1
 crit chance (#7956)

Co-authored-by: Alex <93446519+AlexOn1ine@users.noreply.github.com>
---
 src/battle_script_commands.c           |  3 ++-
 test/battle/move_effect/focus_energy.c | 29 +++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 5280797a41..b09ac176a9 100755
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -11161,7 +11161,8 @@ static void Cmd_setfocusenergy(void)
     }
     else
     {
-        if (GetGenConfig(GEN_CONFIG_FOCUS_ENERGY_CRIT_RATIO) >= GEN_3)
+        if (GetGenConfig(GEN_CONFIG_FOCUS_ENERGY_CRIT_RATIO) >= GEN_3
+         || GetGenConfig(GEN_CONFIG_CRIT_CHANCE) == GEN_1)
             gBattleMons[battler].volatiles.focusEnergy = TRUE;
         else
             gBattleMons[battler].volatiles.dragonCheer = TRUE;
diff --git a/test/battle/move_effect/focus_energy.c b/test/battle/move_effect/focus_energy.c
index 48924132ef..17a08ba7f3 100644
--- a/test/battle/move_effect/focus_energy.c
+++ b/test/battle/move_effect/focus_energy.c
@@ -23,7 +23,34 @@ SINGLE_BATTLE_TEST("Focus Energy increases the user's critical hit ratio by 1 st
     }
     PASSES_RANDOMLY(1, chance, RNG_CRITICAL_HIT);
     GIVEN {
-        WITH_CONFIG(GEN_CONFIG_CRIT_CHANCE, genConfig);
+        WITH_CONFIG(GEN_CONFIG_CRIT_CHANCE, (genConfig == GEN_1)? GEN_2 : genConfig);
+        WITH_CONFIG(GEN_CONFIG_FOCUS_ENERGY_CRIT_RATIO, genConfig);
+        ASSUME(GetSpeciesBaseSpeed(SPECIES_WOBBUFFET) == 33);
+        PLAYER(SPECIES_WOBBUFFET);
+        OPPONENT(SPECIES_WOBBUFFET);
+    } WHEN {
+        if (useFocusEnergy)
+            TURN { MOVE(player, MOVE_FOCUS_ENERGY); }
+        TURN { MOVE(player, MOVE_SCRATCH); }
+    } SCENE {
+        if (useFocusEnergy)
+            ANIMATION(ANIM_TYPE_MOVE, MOVE_FOCUS_ENERGY, player);
+        ANIMATION(ANIM_TYPE_MOVE, MOVE_SCRATCH, player);
+        MESSAGE("A critical hit!");
+    }
+}
+
+SINGLE_BATTLE_TEST("Focus Energy multiplies crit chance by 4 with gen 1 crit chance")
+{
+    bool32 useFocusEnergy = 0;
+    u32 genConfig = 0, chance = 0;
+    for (u32 j = GEN_1; j <= GEN_9; j++) {
+        PARAMETRIZE { genConfig = j; useFocusEnergy = FALSE; chance = 16;}
+        PARAMETRIZE { genConfig = j; useFocusEnergy = TRUE; chance = 4;}
+    }
+    PASSES_RANDOMLY(1, chance, RNG_CRITICAL_HIT);
+    GIVEN {
+        WITH_CONFIG(GEN_CONFIG_CRIT_CHANCE, GEN_1);
         WITH_CONFIG(GEN_CONFIG_FOCUS_ENERGY_CRIT_RATIO, genConfig);
         ASSUME(GetSpeciesBaseSpeed(SPECIES_WOBBUFFET) == 33);
         PLAYER(SPECIES_WOBBUFFET);