Recast spell

data/raw/keybindings.json

@@ -3281,6 +3281,12 @@
     "category": "DEFAULTMODE",
     "bindings": [ { "input_method": "keyboard_any", "key": "]" } ]
   },
+  {
+    "type": "keybinding",
+    "id": "recast_spell",
+    "name": "Repeat last supernatural ability",
+    "category": "DEFAULTMODE"
+  },
   {
     "type": "keybinding",
     "id": "diary",

src/action.cpp

@@ -256,6 +256,8 @@ std::string action_ident( action_id act )
             return "fire_burst";
         case ACTION_CAST_SPELL:
             return "cast_spell";
+        case ACTION_RECAST_SPELL:
+            return "recast_spell";
         case ACTION_SELECT_FIRE_MODE:
             return "select_fire_mode";
         case ACTION_SELECT_DEFAULT_AMMO:
@@ -979,6 +981,7 @@ action_id handle_action_menu()
             REGISTER_ACTION( ACTION_RELOAD_WEAPON );
             REGISTER_ACTION( ACTION_RELOAD_WIELDED );
             REGISTER_ACTION( ACTION_CAST_SPELL );
+            REGISTER_ACTION( ACTION_RECAST_SPELL );
             REGISTER_ACTION( ACTION_SELECT_FIRE_MODE );
             REGISTER_ACTION( ACTION_SELECT_DEFAULT_AMMO );
             REGISTER_ACTION( ACTION_THROW );

src/action.h

@@ -188,6 +188,8 @@ enum action_id : int {
     ACTION_SELECT_DEFAULT_AMMO,
     /** Cast a spell (only if any spells are known) */
     ACTION_CAST_SPELL,
+    /** Recast last spell */
+    ACTION_RECAST_SPELL,
     /** Open the insert-item menu */
     ACTION_INSERT_ITEM,
     /** Unload container in a given direction */

src/game.cpp

@@ -2658,6 +2658,7 @@ input_context get_default_mode_input_context()
     ctxt.register_action( "throw_wielded" );
     ctxt.register_action( "fire" );
     ctxt.register_action( "cast_spell" );
+    ctxt.register_action( "recast_spell" );
     ctxt.register_action( "fire_burst" );
     ctxt.register_action( "select_fire_mode" );
     ctxt.register_action( "select_default_ammo" );

src/handle_action.cpp

@@ -1831,7 +1831,7 @@ static void open_movement_mode_menu()
     }
 }
 
-static void cast_spell()
+static void cast_spell( bool recast_spell = false )
 {
     Character &player_character = get_player_character();
     player_character.magic->clear_opens_spellbook_data();
@@ -1873,11 +1873,19 @@ static void cast_spell()
         }
     }
 
-    spell &sp = player_character.magic->select_spell( player_character );
+    if( recast_spell && player_character.magic->last_spell.is_null() ) {
+        popup( _( "Cast a spell first" ) );
+        return;
+    }
+
+    spell &sp = recast_spell
+                ? player_character.magic->get_spell( player_character.magic->last_spell )
+                : player_character.magic->select_spell( player_character );
     // if no spell was selected
     if( sp.id().is_null() ) {
         return;
     }
+    player_character.magic->last_spell = sp.id();
     player_character.cast_spell( sp, false, std::nullopt );
 }
 
@@ -2638,6 +2646,10 @@ bool game::do_regular_action( action_id &act, avatar &player_character,
             cast_spell();
             break;
 
+        case ACTION_RECAST_SPELL:
+            cast_spell( true );
+            break;
+
         case ACTION_FIRE_BURST: {
             if( weapon ) {
                 if( weapon->gun_set_mode( gun_mode_BURST ) || weapon->gun_set_mode( gun_mode_AUTO ) ) {

src/magic.h

@@ -729,6 +729,8 @@ class known_magic
         spell &select_spell( Character &guy );
         // get all known spells
         std::vector<spell *> get_spells();
+        // Last spell casted
+        spell_id last_spell = spell_id::NULL_ID(); // NOLINT(cata-serialize)
         // directly get the character known spells
         std::map<spell_id, spell> &get_spellbook() {
             return spellbook;