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                         sint16 DeltaHP;     //
  43                 public:
  44                         CTarget(uint8 slot = CLFECOMMON::INVALID_SLOT, bool resist = false, uint8 dist = 0, sint16 deltaHp = 0) : TargetSlot(slot), DeltaHP(deltaHp)
  45                         {
  46                                 Info = (resist == 0 ? 0 : 0x80) | (dist & 0x7f);
  47                         }
  48                         uint32 getPacked() const;
  49                         void   setPacked(uint32 value);
  50         };
  51         typedef std::vector<CTarget> TTargetVect;
  52         // the list of targets
  53         TTargetVect Targets;
  54 public:
  55         /** create packed version of targets (to store in visual properties)
  56           * each VP encodes 2 targets
  57           * caller must provide enough room to store the result (assertion is raised otherwise)
  58           */
  59         void pack(uint64 *destVP, uint numVP);
  60         // build the target from their packed version
  61         void unpack(const uint64 *srcVP, uint numVP);
  62 };
  63
  64 ////////////
  65 // INLINE //
  66 ////////////
  67
  68 // *******************************************************************************************
  69 inline uint32 CMultiTarget::CTarget::getPacked() const
  70 {
  71         //return (uint16) TargetSlot | ((uint16) (Resist ? 1 : 0) << 15) | ((uint16) Distance << 8);
  72         return  ((uint32) TargetSlot) | ((uint32) Info << 8) | ((uint32) DeltaHP << 16);
  73 }
  74
  75 // *******************************************************************************************
  76 inline void   CMultiTarget::CTarget::setPacked(uint32 value)
  77 {
  78         TargetSlot = uint8(value);
  79         Info       = uint8(value >> 8);
  80         DeltaHP    = sint16(value >> 16);
  81 }
  82
  83 #endif