.. _program_listing_file_src_flamegpu_simulation_AgentVector_Agent.cpp:

Program Listing for File AgentVector_Agent.cpp
==============================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_flamegpu_simulation_AgentVector_Agent.cpp>` (``src/flamegpu/simulation/AgentVector_Agent.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "flamegpu/simulation/AgentVector_Agent.h"
   
   #include <memory>
   
   namespace flamegpu {
   
   AgentVector_CAgent::AgentVector_CAgent(AgentVector* parent, const std::shared_ptr<const AgentData>& agent, const std::weak_ptr<AgentVector::AgentDataMap>& data, flamegpu::size_type pos)
       : index(pos)
       , _data(data)
       , _agent(agent)
   , _parent(parent) { }
   AgentVector_CAgent::~AgentVector_CAgent() {
   }
   id_t AgentVector_CAgent::getID() const {
       try {
           return getVariable< id_t>(ID_VARIABLE_NAME);
       } catch (exception::ExpiredWeakPtr&) {
           throw;
       } catch (...) {
           // Rewrite all other exceptions
           THROW exception::UnknownInternalError("Internal Error: Unable to read internal ID variable for agent '%s', in AgentVector::CAgent::getID()\n", _agent->name.c_str());
       }
   }
   
   unsigned int AgentVector_CAgent::getIndex() const {
       return index;
   }
   AgentVector_Agent::AgentVector_Agent(AgentVector* parent, const std::shared_ptr<const AgentData>& agent, const std::weak_ptr<AgentVector::AgentDataMap>& data, flamegpu::size_type pos)
       : AgentVector_CAgent(parent, agent, data, pos) { }
   
   void AgentVector_Agent::resetID() {
       const auto data = _data.lock();
       if (!data) {
           THROW exception::ExpiredWeakPtr("The AgentVector which owns this AgentVector::Agent has been deallocated, "
               "in AgentVector_Agent::resetID().\n");
       }
       const auto v_it = data->find(ID_VARIABLE_NAME);
       if (v_it == data->end()) {
           THROW exception::InvalidOperation("Agent is missing internal ID variable, "
               "in AgentVector_Agent::resetID()\n");
       }
       auto& v_buff = v_it->second;
       // Don't bother checking type/elements
       _parent->_require(ID_VARIABLE_NAME);
       // do the replace
       static_cast<id_t*>(v_buff->getDataPtr())[index] = ID_NOT_SET;
       // Notify (_data was locked above)
       _parent->_changed(ID_VARIABLE_NAME, index);
   }
   
   }  // namespace flamegpu