src/game/TargetedMovementGenerator.h

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef MANGOS_TARGETEDMOVEMENTGENERATOR_H
  20 #define MANGOS_TARGETEDMOVEMENTGENERATOR_H
  21
  22 #include "MovementGenerator.h"
  23 #include "DestinationHolder.h"
  24 #include "Traveller.h"
  25 #include "FollowerReference.h"
  26
  27 class MANGOS_DLL_SPEC TargetedMovementGeneratorBase
  28 {
  29     public:
  30         TargetedMovementGeneratorBase(Unit &target) { i_target.link(&target, this); }
  31         void stopFollowing() { }
  32     protected:
  33         FollowerReference i_target;
  34 };
  35
  36 template<class T>
  37 class MANGOS_DLL_SPEC TargetedMovementGenerator
  38 : public MovementGeneratorMedium< T, TargetedMovementGenerator<T> >, public TargetedMovementGeneratorBase
  39 {
  40     public:
  41
  42         TargetedMovementGenerator(Unit &target)
  43             : TargetedMovementGeneratorBase(target), i_offset(0), i_angle(0), i_recalculateTravel(false) {}
  44         TargetedMovementGenerator(Unit &target, float offset, float angle)
  45             : TargetedMovementGeneratorBase(target), i_offset(offset), i_angle(angle), i_recalculateTravel(false) {}
  46         ~TargetedMovementGenerator() {}
  47
  48         void Initialize(T &);
  49         void Finalize(T &);
  50         void Reset(T &);
  51         bool Update(T &, const uint32 &);
  52         MovementGeneratorType GetMovementGeneratorType() { return TARGETED_MOTION_TYPE; }
  53
  54         Unit* GetTarget() const;
  55
  56         bool GetDestination(float &x, float &y, float &z) const
  57         {
  58             if(!i_destinationHolder.HasDestination()) return false;
  59             i_destinationHolder.GetDestination(x,y,z);
  60             return true;
  61         }
  62
  63         void unitSpeedChanged() { i_recalculateTravel=true; }
  64     private:
  65
  66         void _setTargetLocation(T &);
  67
  68         float i_offset;
  69         float i_angle;
  70         DestinationHolder< Traveller<T> > i_destinationHolder;
  71         bool i_recalculateTravel;
  72 };
  73 #endif