From 951b01114ab85800db8ed7f4a1034e2bd303e712 Mon Sep 17 00:00:00 2001
From: AnonymousRandomPerson <chenghanngan.us@gmail.com>
Date: Wed, 9 Mar 2022 21:50:15 -0500
Subject: Decomped IsMoveIndexUsable

---
 src/dungeon_ai_attack.c |  4 ++--
 src/move_util.c         | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 src/move_util.c

(limited to 'src')

diff --git a/src/dungeon_ai_attack.c b/src/dungeon_ai_attack.c
index 3e2a9f3..f55c20d 100644
--- a/src/dungeon_ai_attack.c
+++ b/src/dungeon_ai_attack.c
@@ -23,6 +23,7 @@
 #include "dungeon_random_1.h"
 #include "dungeon_util.h"
 #include "dungeon_visibility.h"
+#include "move_util.h"
 #include "moves.h"
 #include "position_util.h"
 #include "status_checker.h"
@@ -42,7 +43,6 @@ extern s32 gPotentialAttackTargetWeights[NUM_DIRECTIONS];
 extern u8 gPotentialAttackTargetDirections[NUM_DIRECTIONS];
 extern struct DungeonEntity *gPotentialTargets[NUM_DIRECTIONS];
 
-extern bool8 IsMoveUsable_1(struct DungeonEntity*, s32, bool8);
 extern bool8 TargetRegularAttack(struct DungeonEntity*, u32*, bool8);
 
 void DecideAttack(struct DungeonEntity *pokemon)
@@ -182,7 +182,7 @@ void DecideAttack(struct DungeonEntity *pokemon)
         move = &pokemonData->moves[i];
         if (move->moveFlags & MOVE_FLAG_EXISTS &&
             willNotUnlinkMove[i] &&
-            IsMoveUsable_1(pokemon, i, hasPPChecker) &&
+            IsMoveIndexUsable(pokemon, i, hasPPChecker) &&
             move->moveFlags & MOVE_FLAG_ENABLED)
         {
             moveTargetResults[i].moveUsable = TRUE;
diff --git a/src/move_util.c b/src/move_util.c
new file mode 100644
index 0000000..c5c87ad
--- /dev/null
+++ b/src/move_util.c
@@ -0,0 +1,47 @@
+#include "global.h"
+#include "move_util.h"
+
+extern bool8 IsMoveUsable(struct DungeonEntity *pokemon, struct PokemonMove *move, bool8 hasPPChecker);
+
+bool8 IsMoveIndexUsable(struct DungeonEntity *pokemon, s32 moveIndex, bool8 hasPPChecker)
+{
+    struct DungeonEntityData *pokemonData = pokemon->entityData;
+    struct PokemonMove *move = &pokemonData->moves[moveIndex];
+    s32 i;
+    if (!(move->moveFlags & MOVE_FLAG_EXISTS))
+    {
+        return FALSE;
+    }
+    if (move->moveFlags & MOVE_FLAG_LINKED)
+    {
+        return FALSE;
+    }
+    if (move->moveFlags & MOVE_FLAG_DISABLED ||
+        move->moveFlags2 & MOVE_FLAG_SEALED)
+    {
+        return FALSE;
+    }
+    goto initMoveIndex;
+    returnTrue:
+    return TRUE;
+    initMoveIndex:
+    i = 0;
+    goto checkMoveUsable;
+    incMoveIndex:
+    i++;
+    checkMoveUsable:
+    if (i >= MAX_MON_MOVES)
+    {
+        return FALSE;
+    }
+    if (IsMoveUsable(pokemon, move, hasPPChecker))
+    {
+        goto returnTrue;
+    }
+    move++;
+    if ((u32) move >= (u32) &pokemonData->struggleMoveFlags || !(move->moveFlags & MOVE_FLAG_LINKED))
+    {
+        return FALSE;
+    }
+    goto incMoveIndex;
+}
-- 
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