AtomType.hpp

/*
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 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef TYPES_ATOMTYPE_HPP
 
#define TYPES_ATOMTYPE_HPP
 
#include <config.h>
 
#include <set>
#include <string>
 
#include "utils/PropertyMap.hpp"
 
using namespace std;
 
namespace OpenMD {
  /**
   * @class AtomType
   * AtomType is what OpenMD looks to for unchanging data about an atom.
   * Things that belong to AtomType are universal properties (i.e. does
   * this atom have a Charge?  What is it's mass_?)  Dynamic properties of
   * an atom are not intended to be properties of an atom type
   */
  class AtomType {
  public:
    AtomType();
 
    virtual ~AtomType() {};
 
    virtual void useBase(AtomType* base);
    virtual void copyAllData(AtomType* orig);
    void setMass(RealType m);
    RealType getMass();
    void setIdent(int id);
    int getIdent();
    void setName(const string& name);
    string getName();
    std::vector<AtomType*> allYourBase();
    std::vector<AtomType*> allYourZIG() { return everyZIG; }
    void addZig(AtomType* at) { everyZIG.push_back(at); }
 
    // below functions are just forward functions
    /**
     * Adds property into property map
     * @param genData GenericData to be added into PropertyMap
     */
    void addProperty(std::shared_ptr<GenericData> genData);
 
    /**
     * Removes property from PropertyMap by name
     * @param propName the name of property to be removed
     */
    void removeProperty(const string& propName);
 
    /**
     * Returns all names of properties
     * @return all names of properties
     */
    std::vector<string> getPropertyNames();
 
    /**
     * Returns all of the properties in PropertyMap
     * @return all of the properties in PropertyMap
     */
    std::vector<std::shared_ptr<GenericData>> getProperties();
 
    /**
     * Checks if property is in this PropertyMap
     * @param propName name of property
     * @return boolean
     */
    bool hasProperty(const string& propName);
 
    /**
     * Returns property
     * @param propName name of property
     * @return a pointer point to property with propName. If no
     * property named propName exists, return NULL
     */
    std::shared_ptr<GenericData> getPropertyByName(const string& propName);
 
    bool isLennardJones();
    bool isElectrostatic();
    bool isEAM();
    bool isCharge();
    bool isFixedCharge();
    bool isDirectional();
    bool isDipole();
    bool isQuadrupole();
    bool isMultipole();
    bool isGayBerne();
    bool isSticky();
    bool isStickyPower();
    bool isShape();
    bool isSC();
    bool isMetal();
    bool isFluctuatingCharge();
 
  protected:
    int ident_;
    RealType mass_;
    string name_;
    bool hasBase_;  // All your base are belong to us
    AtomType* base_;
    vector<AtomType*> everyZIG;  // list of atom types which use us as a base
    map<string, bool> myResponsibilities_;
    map<string, RealType> myValues_;
 
  private:
    // prevent copy construction and copy assignment, since property
    // map contains pointers which can not be copied and managed
    // safely, except make the generic data at PropertyMap as copy on
    // write shared pointer
    AtomType(const AtomType&);
    AtomType& operator=(const AtomType& atomType);
    PropertyMap properties_;
  };
 
  class AtomTypeCompare {
  public:
    bool operator()(AtomType* lhs, AtomType* rhs) const {
      return lhs->getIdent() < rhs->getIdent();
    }
  };
 
  using AtomTypeSet = std::set<AtomType*, AtomTypeCompare>;
}  // namespace OpenMD
 
#endif