1 files changed, 47 insertions, 0 deletions
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;
+}