Create PhaseUsage constructor

opm/core/props/BlackoilPhases.cpp

@@ -0,0 +1,53 @@
+/*
+  Copyright 2021 Equinor ASA
+
+  This file is part of the Open Porous Media project (OPM).
+
+  OPM is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  OPM is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <algorithm>
+#include <vector>
+
+#include <opm/core/props/BlackoilPhases.hpp>
+
+Opm::PhaseUsage::PhaseUsage(std::vector<BlackoilPhases::PhaseIndex> phases)
+{
+    std::sort(phases.begin(), phases.end());
+    this->phase_used.fill(0);
+    this->phase_pos.fill(-1);
+
+    std::size_t current_pos = 0;
+    for (const auto& phase : phases) {
+        this->phase_used[phase] = 1;
+        this->phase_pos[phase] = current_pos;
+
+        current_pos++;
+    }
+
+    this->num_phases = 0;
+    if (this->phase_used[BlackoilPhases::Aqua])
+        this->num_phases++;
+    if (this->phase_used[BlackoilPhases::Liquid])
+        this->num_phases++;
+    if (this->phase_used[BlackoilPhases::Vapour])
+        this->num_phases++;
+
+    this->has_solvent   = this->phase_used[BlackoilPhases::Solvent];
+    this->has_polymer   = this->phase_used[BlackoilPhases::Polymer];
+    this->has_energy    = this->phase_used[BlackoilPhases::Energy];
+    this->has_polymermw = this->phase_used[BlackoilPhases::PolymerMW];
+    this->has_foam      = this->phase_used[BlackoilPhases::Foam];
+    this->has_brine     = this->phase_used[BlackoilPhases::Brine];
+    this->has_zFraction = this->phase_used[BlackoilPhases::ZFraction];
+}

opm/core/props/BlackoilPhases.hpp

@@ -21,6 +21,7 @@
 #define OPM_BLACKOILPHASES_HEADER_INCLUDED
 
 #include <array>
+#include <vector>
 
 namespace Opm
 {
@@ -43,6 +44,10 @@ namespace Opm
 
     struct PhaseUsage : public BlackoilPhases
     {
+        PhaseUsage() = default;
+        explicit PhaseUsage(std::vector<BlackoilPhases::PhaseIndex> phases);
+
+
         std::array<int, MaxNumPhases + NumCryptoPhases> phase_used;
         std::array<int, MaxNumPhases + NumCryptoPhases> phase_pos;