src/common/weapons/WeaponGroupSelect.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 //    Scorched3D (c) 2000-2009
   3 //
   4 //    This file is part of Scorched3D.
   5 //
   6 //    Scorched3D is free software; you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation; either version 2 of the License, or
   9 //    (at your option) any later version.
  10 //
  11 //    Scorched3D is distributed in the hope that it will be useful,
  12 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //    GNU General Public License for more details.
  15 //
  16 //    You should have received a copy of the GNU General Public License
  17 //    along with Scorched3D; if not, write to the Free Software
  18 //    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 ////////////////////////////////////////////////////////////////////////////////
  20
  21 #include <weapons/WeaponGroupSelect.h>
  22 #include <weapons/AccessoryStore.h>
  23 #include <engine/ActionController.h>
  24 #include <landscapemap/LandscapeMaps.h>
  25 #include <landscapedef/LandscapeTex.h>
  26 #include <target/Target.h>
  27 #include <target/TargetLife.h>
  28
  29 REGISTER_ACCESSORY_SOURCE(WeaponGroupSelect);
  30
  31 WeaponGroupSelect::WeaponGroupSelect()
  32 {
  33
  34 }
  35
  36 WeaponGroupSelect::~WeaponGroupSelect()
  37 {
  38
  39 }
  40
  41 bool WeaponGroupSelect::parseXML(AccessoryCreateContext &context,XMLNode *accessoryNode)
  42 {
  43         if (!Weapon::parseXML(context, accessoryNode)) return false;
  44
  45         if (!accessoryNode->getNamedChild("groupname", groupName_)) return false;
  46
  47         XMLNode *subNode = 0;
  48         if (!accessoryNode->getNamedChild("nextaction", subNode)) return false;
  49
  50         // Check next weapon is correct type
  51         AccessoryPart *accessory = context.getAccessoryStore().
  52                 createAccessoryPart(context, parent_, subNode);
  53         if (!accessory || accessory->getType() != AccessoryPart::AccessoryWeapon)
  54         {
  55                 return subNode->returnError("Failed to find sub weapon, not a weapon");
  56         }
  57         nextAction_ = (Weapon*) accessory;
  58
  59         return true;
  60 }
  61
  62 void WeaponGroupSelect::fireWeapon(ScorchedContext &context,
  63         WeaponFireContext &weaponContext, FixedVector &position, FixedVector &velocity)
  64 {
  65         // Find the group to select the objects in
  66         TargetGroupsSetEntry *groupEntry = context.getLandscapeMaps().getGroundMaps().getGroups().
  67                 getGroup(groupName_.c_str());
  68         if (!groupEntry) return;
  69
  70         // Select the object
  71         int objectCount = groupEntry->getObjectCount();
  72         if (objectCount == 0) return;
  73         unsigned int object = context.getActionController().getRandom().getRandUInt() % objectCount;
  74         TargetGroup *entry = groupEntry->getObjectByPos(object);
  75
  76         FixedVector newPosition = entry->getTarget()->getLife().getTargetPosition();
  77         FixedVector newVelocity = entry->getTarget()->getLife().getVelocity();
  78
  79         nextAction_->fireWeapon(context, weaponContext, newPosition, newVelocity);
  80 }
  81