ryzom/common/src/game_share/multi_target.h

   1 // Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (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 Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17
  18
  19 #ifndef RY_MULTI_TARGET_H
  20 #define RY_MULTI_TARGET_H
  21
  22 #include "entity_types.h"
  23
  24 const float MULTI_TARGET_DISTANCE_UNIT = 100.f / 127.f;
  25
  26 /** A list of targets, which can be packed/unpacked in visual properties (see PROPERTY_TARGET_LIST_x in entity_types.h)
  27   *
  28   * \author Nicolas Vizerie
  29   * \author Nevrax France
  30   * \date 2003
  31   */
  32 class CMultiTarget
  33 {
  34 public:
  35         // a single target
  36         class CTarget
  37         {
  38                 public:
  39                         uint8 TargetSlot;       // the slot that is targetted
  40                         uint8 Info;         // Damage shield for melee  5:3 format (damage shield io : power )
  41                                             // Distance for range attacks (that do not have damage shield) format is 7:1
  42                 public:
  43                         CTarget(uint8 slot = CLFECOMMON::INVALID_SLOT, bool resist = false, uint8 dist = 0) : TargetSlot(slot)
  44                         {
  45                                 Info = (resist == 0 ? 0 : 0x80) | (dist & 0x7f);
  46                         }
  47                         uint16 getPacked() const;
  48                         void   setPacked(uint16 value);
  49         };
  50         typedef std::vector<CTarget> TTargetVect;
  51         // the list of targets
  52         TTargetVect Targets;
  53 public:
  54         /** create packed version of targets (to store in visual properties)
  55           * each VP encodes 4 targets
  56           * caller must provide enough room to store the result (assertion is raised otherwise)
  57           */
  58         void pack(uint64 *destVP, uint numVP);
  59         // build the target from their packed version
  60         void unpack(const uint64 *srcVP, uint numVP);
  61 };
  62
  63 ////////////
  64 // INLINE //
  65 ////////////
  66
  67 // *******************************************************************************************
  68 inline uint16 CMultiTarget::CTarget::getPacked() const
  69 {
  70         //return (uint16) TargetSlot | ((uint16) (Resist ? 1 : 0) << 15) | ((uint16) Distance << 8);
  71         return (uint16) TargetSlot | (uint16(Info) << 8);
  72 }
  73
  74 // *******************************************************************************************
  75 inline void   CMultiTarget::CTarget::setPacked(uint16 value)
  76 {
  77         TargetSlot = uint8(value & 0xff);
  78         /*Distance = (uint8) ((value >> 8) & 0x7f);
  79         Resist = (value & 0x8000) != 0;*/
  80         Info = value >> 8;
  81 }
  82
  83 #endif