rename to move_cost_multiplier

Author: marilynias

src/monmove.cpp

@@ -1776,7 +1776,8 @@ static tripoint_bub_ms find_closest_stair( const tripoint_bub_ms &near_this,
     return near_this;
 }
 
-bool monster::move_to( const tripoint_bub_ms &p, bool force, bool step_on_critter )
+bool monster::move_to( const tripoint_bub_ms &p, bool force, bool step_on_critter,
+                       const float move_cost_multiplier )
 {
     map &here = get_map();
     const tripoint_bub_ms pos = pos_bub( here );
@@ -1844,7 +1845,8 @@ bool monster::move_to( const tripoint_bub_ms &p, bool force, bool step_on_critte
         // is consistent even if the monster stumbles,
         // and the same regardless of the distance measurement mode.
         // Note: Keep this as float here or else it will cancel valid moves
-        const float cost = static_cast<float>( climbs() &&
+        const float cost = stagger_adjustment *
+                           static_cast<float>( climbs() &&
                                                here.has_flag( ter_furn_flag::TFLAG_NO_FLOOR, p ) ? calc_climb_cost( pos,
                                                        destination ) : calc_movecost( pos,
                                                                destination ) );

src/monster.h

@@ -290,7 +290,8 @@ class monster : public Creature
          *
          * @return true if movement successful, false otherwise
          */
-        bool move_to( const tripoint_bub_ms &p, bool force = false, bool step_on_critter = false );
+        bool move_to( const tripoint_bub_ms &p, bool force = false, bool step_on_critter = false,
+                      float move_cost_multiplier = 1.0 );
 
         /**
          * Attack any enemies at the given location.