use struct for coordinates

times/base.cpp

@@ -3,11 +3,11 @@
 //
 #include "base.h"
 
-Distribution::Distribution(const double tau, std::mt19937_64 &rng) : m_tau(tau), m_rng(rng) {}
+Distribution::Distribution(const double tau, std::mt19937_64 &rng) : m_tau(tau), m_tau_jump(tau), m_rng(rng) {}
 
 Distribution::Distribution(std::mt19937_64 &rng) : m_rng(rng) {}
 
 double Distribution::tau_wait() const {
-    return std::exponential_distribution(1./m_tau)(m_rng);
+    return std::exponential_distribution(1./m_tau_jump)(m_rng);
 }
 

times/base.h

@@ -17,11 +17,13 @@ public:
     [[nodiscard]] double getTau() const { return m_tau; }
     void setTau(const double tau) { m_tau = tau;}
 
+    virtual void initialize() = 0;
     virtual void draw_tau() = 0;
     [[nodiscard]] double tau_wait() const;
 
-private:
+protected:
     double m_tau{1.};
+    double m_tau_jump{1.};
     std::mt19937_64& m_rng;
 };
 

times/delta.cpp

@@ -6,5 +6,9 @@
 DeltaDistribution::DeltaDistribution(const double tau, std::mt19937_64& rng) : Distribution(tau, rng) {}
 DeltaDistribution::DeltaDistribution(std::mt19937_64& rng) : Distribution(rng) {}
 
+void DeltaDistribution::initialize() {
+    m_tau_jump = m_tau;
+}
+
 void DeltaDistribution::draw_tau() {}
 

times/delta.h

@@ -12,6 +12,7 @@ public:
     DeltaDistribution(double, std::mt19937_64&);
     explicit DeltaDistribution(std::mt19937_64 &rng);
 
+    void initialize() override;
     void draw_tau() override;
 };
 

times/lognormal.cpp

@@ -0,0 +1,18 @@
+//
+// Created by dominik on 8/24/24.
+//
+
+#include "lognormal.h"
+#include <cmath>
+
+LogNormalDistribution::LogNormalDistribution(const double tau, const double sigma, std::mt19937_64& rng) : Distribution(tau, rng), m_sigma(sigma), m_distribution(std::log(tau), sigma) {}
+LogNormalDistribution::LogNormalDistribution(std::mt19937_64& rng) : Distribution(rng) {}
+
+void LogNormalDistribution::initialize() {
+    m_distribution = std::lognormal_distribution(std::log(m_tau), m_sigma);
+    m_tau_jump = m_distribution(m_rng);
+}
+
+void LogNormalDistribution::draw_tau() {
+    m_tau_jump = m_distribution(m_rng);
+}

times/lognormal.h

@@ -0,0 +1,21 @@
+
+#ifndef LOGNORMAL_H
+#define LOGNORMAL_H
+
+#include "base.h"
+#include <random>
+
+class LogNormalDistribution final : public Distribution {
+public:
+    LogNormalDistribution(double, double, std::mt19937_64&);
+    explicit LogNormalDistribution(std::mt19937_64 &rng);
+
+    void initialize() override;
+    void draw_tau() override;
+
+private:
+    double m_sigma{1};
+    std::lognormal_distribution<> m_distribution;
+};
+
+#endif //LOGNORMAL_H