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25 //
26 //
27 // 20/2/2019
28 // Author: HoangTRAN
29
30 #ifndef G4DNAIndependentReactionTimeStepper_hh
31 #define G4DNAIndependentReactionTimeStepper_hh 1
32
33 #include "G4VITTimeStepComputer.hh"
34 #include "G4KDTreeResult.hh"
35 #include "G4IRTUtils.hh"
36 #include <memory>
37 #include <set>
38 #include "G4ITTrackHolder.hh"
39 #include "G4ITReaction.hh"
40 #include "G4ReferenceCast.hh"
41
42 class G4VDNAReactionModel;
43 class G4DNAMolecularReactionTable;
44 class G4MolecularConfiguration;
45 class G4Molecule;
46 class G4ITReactionSet;
47 class G4ITReactionChange;
48 class G4VITReactionProcess;
49 class G4ITTrackHolder;
50
51 class G4DNAIndependentReactionTimeStepper : public G4VITTimeStepComputer
52 {
53 public:
54 G4DNAIndependentReactionTimeStepper();
55 ~G4DNAIndependentReactionTimeStepper() override = default;
56 G4DNAIndependentReactionTimeStepper(
57 const G4DNAIndependentReactionTimeStepper&) = delete;
58 G4DNAIndependentReactionTimeStepper& operator =(
59 const G4DNAIndependentReactionTimeStepper&) = delete;
60
61 void Prepare() override;
62 G4double CalculateStep(const G4Track&, const G4double&) override;
63 G4double CalculateMinTimeStep(G4double, G4double) override;
64
65 void SetReactionModel(G4VDNAReactionModel*);
66 G4VDNAReactionModel* GetReactionModel();
67
68 std::unique_ptr<G4ITReactionChange> FindReaction(
69 G4ITReactionSet* pReactionSet, const G4double& currentStepTime = 0,
70 const G4double& previousStepTime = 0,
71 const G4bool& reachedUserStepTimeLimit = false);
72 void SetReactionProcess(G4VITReactionProcess* pReactionProcess);
73 void SetVerbose(G4int);
74
75 private:
76 void InitializeForNewTrack();
77 class Utils;
78 void CheckAndRecordResults(const Utils& utils);
79
80 G4double GetTimeToEncounter(const G4Track& trackA, const G4Track& trackB);
81
82 G4bool fHasAlreadyReachedNullTime = false;
83 const G4DNAMolecularReactionTable*& fMolecularReactionTable =
84 reference_cast<const G4DNAMolecularReactionTable*>(fpReactionTable);
85 G4VDNAReactionModel* fReactionModel = nullptr;
86 G4ITTrackHolder* fpTrackContainer = G4ITTrackHolder::Instance();
87 G4ITReactionSet* fReactionSet = G4ITReactionSet::Instance();
88 G4int fVerbose = 0;
89 G4double fRCutOff = G4IRTUtils::GetRCutOff();
90 G4VITReactionProcess* fpReactionProcess = nullptr;
91 std::map<G4int, G4ThreeVector> fSampledPositions;
92 std::set<G4int> fCheckedTracks;
93
94 class Utils
95 {
96 public:
97 Utils(const G4Track& tA, const G4Track& tB);
98 ~Utils() = default;
99 const G4Track& fTrackA;
100 const G4Track& fTrackB;
101 const G4Molecule* fpMoleculeA;
102 const G4Molecule* fpMoleculeB;
103 };
104 };
105 #endif
106