1 files changed, 27 insertions, 8 deletions
diff --git a/Source/Particles/MultiParticleContainer.H b/Source/Particles/MultiParticleContainer.H
index 9db129b05..65c13e39b 100644
--- a/Source/Particles/MultiParticleContainer.H
+++ b/Source/Particles/MultiParticleContainer.H
@@ -1,3 +1,13 @@
+/* Copyright 2019-2020 Andrew Myers, Ann Almgren, Axel Huebl
+ * David Grote, Jean-Luc Vay, Junmin Gu
+ * Luca Fedeli, Mathieu Lobet, Maxence Thevenet
+ * Remi Lehe, Revathi Jambunathan, Weiqun Zhang
+ * Yinjian Zhao
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
 #ifndef WARPX_ParticleContainer_H_
 #define WARPX_ParticleContainer_H_
 
@@ -8,6 +18,7 @@
 #include <RigidInjectedParticleContainer.H>
 #include <PhotonParticleContainer.H>
 #include <LaserParticleContainer.H>
+#include <WarpXParserWrapper.H>
 
 #include <AMReX_Particles.H>
 #ifdef WARPX_QED
@@ -81,13 +92,6 @@ public:
                    amrex::Real t, amrex::Real dt);
 
     ///
-    /// This pushes the particle positions by one half time step for all the species in the
-    /// MultiParticleContainer. It is used to desynchronize the particles after initializaton
-    /// or when restarting from a checkpoint. This is the electrostatic version.
-    ///
-    void PushXES (amrex::Real dt);
-
-    ///
     /// This deposits the particle charge onto rho, accumulating the value for all the species
     /// in the MultiParticleContainer. rho is assumed to contain node-centered multifabs.
     /// This version is hard-coded for CIC deposition.
@@ -128,7 +132,7 @@ public:
     ///
     /// This pushes the particle positions by one half time step for all the species in the
     /// MultiParticleContainer. It is used to desynchronize the particles after initializaton
-    /// or when restarting from a checkpoint. This is the electromagnetic version.
+    /// or when restarting from a checkpoint.
     ///
     void PushX (amrex::Real dt);
 
@@ -215,6 +219,21 @@ public:
 
     IonizationProcess ionization_process;
 
+    std::string m_B_ext_particle_s = "default";
+    std::string m_E_ext_particle_s = "default";
+    // External fields added to particle fields.
+    amrex::Vector<amrex::Real> m_B_external_particle;
+    amrex::Vector<amrex::Real> m_E_external_particle;
+    // ParserWrapper for B_external on the particle
+    std::unique_ptr<ParserWrapper> m_Bx_particle_parser;
+    std::unique_ptr<ParserWrapper> m_By_particle_parser;
+    std::unique_ptr<ParserWrapper> m_Bz_particle_parser;
+    // ParserWrapper for E_external on the particle
+    std::unique_ptr<ParserWrapper> m_Ex_particle_parser;
+    std::unique_ptr<ParserWrapper> m_Ey_particle_parser;
+    std::unique_ptr<ParserWrapper> m_Ez_particle_parser;
+
+
 protected:
 
     // Particle container types