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[alexxy/gromacs-dssp.git] / src / dssptools.cpp
1 /*
2 * This file is part of the GROMACS molecular simulation package.
3 *
4 * Copyright (c) 2021, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
8 *
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
13 *
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17 * Lesser General Public License for more details.
18 *
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34 */
35 /*! \internal \file
36 * \brief
37 * Implements gmx::analysismodules::Trajectory.
38 *
39 * \author Sergey Gorelov <gorelov_sv@pnpi.nrcki.ru>
40 * \author Anatoly Titov <titov_ai@pnpi.nrcki.ru>
41 * \author Alexey Shvetsov <alexxyum@gmail.com>
42 * \ingroup module_trajectoryanalysis
43 */
44
45 /*
46     There's something wrong with energy of the last residue
47 */
48
49
50 #include "dssptools.h"
51
52 #include <algorithm>
53 #include "gromacs/math/units.h"
54
55 #include "gromacs/pbcutil/pbc.h"
56 #include <gromacs/trajectoryanalysis.h>
57 #include "gromacs/trajectoryanalysis/topologyinformation.h"
58 #include <set>
59 #include <fstream>
60 #include <mutex>
61 #include <iostream>
62
63 namespace gmx
64 {
65
66 namespace analysismodules
67 {
68
69 //void ResInfo::setIndex(backboneAtomTypes atomTypeName, std::size_t atomIndex)
70 //{
71 //   _ResInfo.at(static_cast<std::size_t>(atomTypeName)) = atomIndex;
72 //}
73
74 //std::size_t ResInfo::getIndex(backboneAtomTypes atomTypeName) const
75 //{
76 //   return _ResInfo[static_cast<std::size_t>(atomTypeName)];
77 //}
78
79 std::size_t ResInfo::getIndex(backboneAtomTypes atomTypeName) const{
80     return _backboneIndices[static_cast<std::size_t>(atomTypeName)];
81 }
82
83 secondaryStructures::secondaryStructures(){
84 }
85 void secondaryStructures::initiateSearch(const std::vector<ResInfo> &ResInfoMatrix, const bool PiHelicesPreferencez){
86     SecondaryStructuresStatusMap.resize(0);
87     SecondaryStructuresStringLine.resize(0);
88     std::vector<std::size_t> temp; temp.resize(0),
89     PiHelixPreference = PiHelicesPreferencez;
90     ResInfoMap = &ResInfoMatrix;
91     SecondaryStructuresStatusMap.resize(ResInfoMatrix.size());
92     SecondaryStructuresStringLine.resize(ResInfoMatrix.size(), '~');
93 }
94
95 void secondaryStructures::secondaryStructuresData::setStatus(const secondaryStructureTypes secondaryStructureTypeName){
96     SecondaryStructuresStatusArray[static_cast<std::size_t>(secondaryStructureTypeName)] = true;
97 }
98
99 void secondaryStructures::secondaryStructuresData::setStatus(const HelixPositions helixPosition, const turnsTypes turn){
100     TurnsStatusArray[static_cast<std::size_t>(turn)] = helixPosition;
101 }
102
103 bool secondaryStructures::secondaryStructuresData::getStatus(const secondaryStructureTypes secondaryStructureTypeName) const{
104     return SecondaryStructuresStatusArray[static_cast<std::size_t>(secondaryStructureTypeName)];
105 }
106
107 bool secondaryStructures::secondaryStructuresData::isBreakPartnerWith(const secondaryStructuresData *partner) const{
108     return breakPartners[0] == partner || breakPartners[1] == partner;
109 }
110
111 HelixPositions secondaryStructures::secondaryStructuresData::getStatus(const turnsTypes turn) const{
112     return TurnsStatusArray[static_cast<std::size_t>(turn)];
113 }
114
115 void secondaryStructures::secondaryStructuresData::setBreak(secondaryStructuresData *breakPartner){
116     if (breakPartners[0] == nullptr){
117         breakPartners[0] = breakPartner;
118     }
119     else{
120         breakPartners[1] = breakPartner;
121     }
122     setStatus(secondaryStructureTypes::Break);
123 }
124
125 bool secondaryStructures::hasHBondBetween(std::size_t Donor, std::size_t Acceptor) const{ // prob should add resi name comparison ?
126     if( (*ResInfoMap)[Donor].acceptor[0] == nullptr ||
127         (*ResInfoMap)[Donor].acceptor[1] == nullptr ||
128         (*ResInfoMap)[Acceptor].info == nullptr ){
129         return false;
130     }
131     else {
132
133 //        std::cout << "Comparing DONOR " << Donor << " And ACCEPTOR " << Acceptor << " :";
134 //        std::cout << "DONOR's acceptor adresses are " << (*ResInfoMap)[Donor].acceptor[0] << ", " << (*ResInfoMap)[Donor].acceptor[1] << " and ACCEPTOR adress is " << (*ResInfoMap)[Acceptor].info << std::endl;
135 //        std::cout << "DONOR's acceptors' nr are = " << (*ResInfoMap)[Donor].acceptor[0]->nr << ", " << (*ResInfoMap)[Donor].acceptor[1]->nr << " And ACCEPTOR's nr = " << (*ResInfoMap)[Acceptor].info->nr << std::endl;
136 //        std::cout << "DONOR's acceptors' chainID are = " << (*ResInfoMap)[Donor].acceptor[0]->chainid << ", " << (*ResInfoMap)[Donor].acceptor[1]->chainid << " And ACCEPTOR's chainID = " << (*ResInfoMap)[Acceptor].info->chainid << std::endl;
137
138 //        if( ( (*ResInfoMap)[Donor].acceptor[0] == (*ResInfoMap)[Acceptor].info && (*ResInfoMap)[Donor].acceptorEnergy[0] < HBondEnergyCutOff ) ||
139 //                ( (*ResInfoMap)[Donor].acceptor[1] == (*ResInfoMap)[Acceptor].info && (*ResInfoMap)[Donor].acceptorEnergy[1] < HBondEnergyCutOff ) ){
140 //            std::cout << "HBond Exist" << std::endl;
141 //        }
142         return ( (*ResInfoMap)[Donor].acceptor[0] == (*ResInfoMap)[Acceptor].info && (*ResInfoMap)[Donor].acceptorEnergy[0] < HBondEnergyCutOff ) ||
143                 ( (*ResInfoMap)[Donor].acceptor[1] == (*ResInfoMap)[Acceptor].info && (*ResInfoMap)[Donor].acceptorEnergy[1] < HBondEnergyCutOff );
144     }
145 }
146
147 bool secondaryStructures::NoChainBreaksBetween(std::size_t Resi1, std::size_t Resi2) const{
148     std::size_t i{Resi1}, j{Resi2}; // From i to j → i <= j
149     if ( i > j ){
150         std::swap(i, j);
151     }
152
153     for (; i != j; ++i){
154         if ( SecondaryStructuresStatusMap[i].isBreakPartnerWith(&SecondaryStructuresStatusMap[i + 1]) && SecondaryStructuresStatusMap[i + 1].isBreakPartnerWith(&SecondaryStructuresStatusMap[i]) ){
155             std::cout << "Patternsearch has detected a CHAINBREAK between " << Resi1 << " and " << Resi2 << std::endl;
156             return false;
157         }
158     }
159     return true;
160 }
161
162 bridgeTypes secondaryStructures::calculateBridge(std::size_t i, std::size_t j) const{
163     if( i < 1 || j < 1 || i + 1 >= ResInfoMap->size() || j + 1 >= ResInfoMap->size() ){
164         return bridgeTypes::None;
165     }
166     if(NoChainBreaksBetween(i - 1, i + 1) && NoChainBreaksBetween(j - 1, j + 1)){
167         if((hasHBondBetween(i + 1, j) && hasHBondBetween(j, i - 1)) || (hasHBondBetween(j + 1, i) && hasHBondBetween(i, j - 1)) ){ //possibly swap
168             return bridgeTypes::ParallelBridge;
169         }
170         else if((hasHBondBetween(i + 1, j - 1) && hasHBondBetween(j + 1, i - 1)) || (hasHBondBetween(j, i) && hasHBondBetween(i, j)) ){ //possibly swap
171             return bridgeTypes::AntiParallelBridge;
172         }
173     }
174     return bridgeTypes::None;
175 }
176
177 void secondaryStructures::analyzeBridgesAndLaddersPatterns(){
178     for(std::size_t i {1}; i + 4 < SecondaryStructuresStatusMap.size(); ++i){
179         for(std::size_t j {i + 3}; j + 1 < SecondaryStructuresStatusMap.size(); ++j ){
180             bridgeTypes type {calculateBridge(i, j)};
181             if (type == bridgeTypes::None){
182                 continue;
183             }
184             bool found {false};
185         }
186     }
187
188
189
190
191
192
193
194
195
196
197
198
199 //    for (std::size_t i{ 1 }; i < HBondsMap.front().size() - 1; ++i){
200 //        for (std::size_t j{ 1 }; j < HBondsMap.front().size() - 1; ++j){
201 //            if (std::abs(static_cast<int>(i) - static_cast<int>(j)) > 2){
202 //                if ((HBondsMap[i - 1][j] && HBondsMap[j][i + 1])    ||
203 //                    (HBondsMap[j - 1][i] && HBondsMap[i][j + 1])){
204 //                    Bridge[i].push_back(j);
205 //                }
206 //                if ((HBondsMap[i][j] && HBondsMap[j][i])    ||
207 //                    (HBondsMap[i - 1][j + 1] && HBondsMap[j - 1][i + 1])){
208 //                    AntiBridge[i].push_back(j);
209 //                }
210 //            }
211 //        }
212 //    }
213 //    for (std::size_t i{ 0 }; i < HBondsMap.front().size(); ++i){
214 //        if ((!Bridge[i].empty() || !AntiBridge[i].empty())){
215 //            setStatus(i, secondaryStructureTypes::Bulge);
216 //        }
217 //    }
218 //    for (std::size_t i{ 2 }; i + 2 < HBondsMap.front().size(); ++i){
219 //        for (std::size_t j { i - 2 }; j <= (i + 2); ++j){
220 //            if (j == i){
221 //                continue;
222 //            }
223 //            else {
224 //                for (std::vector<bridgeTypes>::const_iterator bridge {Bridges.begin()}; bridge != Bridges.end(); ++bridge ){
225 //                    if (!getBridge(*bridge)[i].empty() || !getBridge(*bridge)[j].empty()){
226 //                        for (std::size_t i_resi{ 0 }; i_resi < getBridge(*bridge)[i].size(); ++i_resi){
227 //                            for (std::size_t j_resi{ 0 }; j_resi < getBridge(*bridge)[j].size(); ++j_resi){
228 //                                if (abs(static_cast<int>(getBridge(*bridge)[i][i_resi])
229 //                                        - static_cast<int>(getBridge(*bridge)[j][j_resi]))
230 //                                        && (abs(static_cast<int>(getBridge(*bridge)[i][i_resi])
231 //                                        - static_cast<int>(getBridge(*bridge)[j][j_resi]))
232 //                                        < 5)){
233 //                                    if (j < i){
234 //                                        for (std::size_t k{ 0 }; k <= i - j; ++k){
235 //                                            setStatus(i + k, secondaryStructureTypes::Ladder);
236 //                                        }
237 //                                    }
238 //                                    else{
239 //                                        for (std::size_t k{ 0 }; k <= j - i; ++k){
240 //                                            setStatus(i + k, secondaryStructureTypes::Ladder);
241 //                                        }
242 //                                    }
243 //                                }
244 //                            }
245 //                        }
246 //                    }
247 //                }
248 //            }
249 //        }
250 //    }
251 }
252
253 void secondaryStructures::analyzeTurnsAndHelicesPatterns(){
254     for(const turnsTypes &i : { turnsTypes::Turn_4, turnsTypes::Turn_3, turnsTypes::Turn_5 }){
255         std::cout << "Testing Helix_" << static_cast<std::size_t>(i) + 3 << std::endl;
256         std::size_t stride {static_cast<std::size_t>(i) + 3};
257         for(std::size_t j {0}; j + stride < SecondaryStructuresStatusMap.size(); ++j){
258             std::cout << "Testing " << j << " and " << j + stride << std::endl;
259             if ( hasHBondBetween(j, j + stride) && NoChainBreaksBetween(j, j + stride) ){
260                 std::cout << j << " and " << j + stride << " has hbond!" << std::endl;
261                 SecondaryStructuresStatusMap[j + stride].setStatus(HelixPositions::End, i);
262
263                 for (std::size_t k {1}; k < stride; ++k){
264                     if( SecondaryStructuresStatusMap[j + k].getStatus(i) == HelixPositions::None ){
265                         SecondaryStructuresStatusMap[j + k].setStatus(HelixPositions::Middle, i);
266                     }
267
268                 }
269
270                 if( SecondaryStructuresStatusMap[j].getStatus(i) == HelixPositions::End ){
271                     SecondaryStructuresStatusMap[j].setStatus(HelixPositions::Start_AND_End, i);
272                 }
273                 else {
274                     SecondaryStructuresStatusMap[j].setStatus(HelixPositions::Start, i);
275                 }
276             }
277         }
278     }
279
280     for(const turnsTypes &i : { turnsTypes::Turn_4, turnsTypes::Turn_3, turnsTypes::Turn_5 }){
281         std::size_t stride {static_cast<std::size_t>(i) + 3};
282         for(std::size_t j {1}; j + stride < SecondaryStructuresStatusMap.size(); ++j){
283             if ( (SecondaryStructuresStatusMap[j - 1].getStatus(i) == HelixPositions::Start || SecondaryStructuresStatusMap[j - 1].getStatus(i) == HelixPositions::Start_AND_End ) &&
284                  (SecondaryStructuresStatusMap[j].getStatus(i) == HelixPositions::Start || SecondaryStructuresStatusMap[j].getStatus(i) == HelixPositions::Start_AND_End ) ){
285                 bool empty = true;
286                 secondaryStructureTypes Helix;
287                 switch(i){
288                 case turnsTypes::Turn_3:
289                     for (std::size_t k {0}; empty && k < stride; ++k){
290                         empty = SecondaryStructuresStatusMap[j + k].getStatus(secondaryStructureTypes::Loop ) || SecondaryStructuresStatusMap[j + k].getStatus(secondaryStructureTypes::Helix_3);
291                     }
292                     Helix = secondaryStructureTypes::Helix_3;
293                     break;
294                 case turnsTypes::Turn_5:
295                     for (std::size_t k {0}; empty && k < stride; ++k){
296                         empty = SecondaryStructuresStatusMap[j + k].getStatus(secondaryStructureTypes::Loop ) || SecondaryStructuresStatusMap[j + k].getStatus(secondaryStructureTypes::Helix_5) || (PiHelixPreference && SecondaryStructuresStatusMap[j + k].getStatus(secondaryStructureTypes::Helix_4)); //TODO
297                     }
298                     Helix = secondaryStructureTypes::Helix_5;
299                     break;
300                 default:
301                     Helix = secondaryStructureTypes::Helix_4;
302                     break;
303                 }
304                 if ( empty || Helix == secondaryStructureTypes::Helix_4 ){
305                     for(std::size_t k {0}; k < stride - 1; ++k ){
306                         SecondaryStructuresStatusMap[j + k].setStatus(Helix);
307                     }
308                 }
309             }
310         }
311     }
312
313     for(std::size_t i {1}; i + 1 < SecondaryStructuresStatusMap.size(); ++i){
314         if (SecondaryStructuresStatusMap[i].getStatus(secondaryStructureTypes::Loop)){
315             bool isTurn = false;
316             for(const turnsTypes &j : {turnsTypes::Turn_3, turnsTypes::Turn_4, turnsTypes::Turn_5}){
317                 std::size_t stride {static_cast<std::size_t>(i) + 3};
318                 for(std::size_t k {1}; k < stride; ++k){
319                     isTurn = (i >= k) && (SecondaryStructuresStatusMap[i - k].getStatus(j) == HelixPositions::Start || SecondaryStructuresStatusMap[i - k].getStatus(j) == HelixPositions::Start_AND_End) ;
320                 }
321             }
322
323             if (isTurn){
324                 SecondaryStructuresStatusMap[i].setStatus(secondaryStructureTypes::Turn);
325             }
326             else if (SecondaryStructuresStatusMap[i].getStatus(secondaryStructureTypes::Bend)){
327                 SecondaryStructuresStatusMap[i].setStatus(secondaryStructureTypes::Bend);
328             }
329         }
330     }
331
332 }
333
334 void secondaryStructures::analyzePPHelicesPatterns(){}
335
336 std::string secondaryStructures::patternSearch(){
337
338
339 //    analyzeBridgesAndLaddersPatterns();
340     analyzeTurnsAndHelicesPatterns();
341 //    analyzePPHelicesPatterns();
342     NoChainBreaksBetween(80, 75);
343
344 //    for(std::size_t i {0}; i < ResInfoMap->size(); ++i){
345 //        std::cout << (*ResInfoMap)[i].info->nr << " " << *((*ResInfoMap)[i].info->name) << std::endl;
346 //    }
347
348 //    std::cout.precision(5);
349 //    for(std::size_t i{0}; i < ResInfoMap->size(); ++i, std::cout << std::endl << std::endl){
350 //        std::cout << (*ResInfoMap)[i].info->nr << " " << *((*ResInfoMap)[i].info->name) ;
351 //        if ( (*ResInfoMap)[i].donor[0] != nullptr ){
352 //            std::cout << " has donor[0] = " << (*ResInfoMap)[i].donor[0]->nr << " " << *((*ResInfoMap)[i].donor[0]->name) << " with E = " << (*ResInfoMap)[i].donorEnergy[0] << " and" ;
353 //        }
354 //        else {
355 //            std::cout << " has no donor[0] and" ;
356 //        }
357 //        if ( (*ResInfoMap)[i].acceptor[0] != nullptr ){
358 //            std::cout << " has acceptor[0] = " << (*ResInfoMap)[i].acceptor[0]->nr << " " << *((*ResInfoMap)[i].acceptor[0]->name) << " with E = " << (*ResInfoMap)[i].acceptorEnergy[0] ;
359 //        }
360 //        else {
361 //            std::cout << " has no acceptor[0]" ;
362 //        }
363 //        std::cout << std::endl << "Also, " << (*ResInfoMap)[i].info->nr << " " << *((*ResInfoMap)[i].info->name);
364 //        if ( (*ResInfoMap)[i].donor[1] != nullptr ){
365 //            std::cout << " has donor[1] = " << (*ResInfoMap)[i].donor[1]->nr << " " << *((*ResInfoMap)[i].donor[1]->name) << " with E = " << (*ResInfoMap)[i].donorEnergy[1] << " and" ;
366 //        }
367 //        else {
368 //            std::cout << " has no donor[1] and" ;
369 //        }
370 //        if ( (*ResInfoMap)[i].acceptor[1] != nullptr ){
371 //            std::cout << " has acceptor[1] = " << (*ResInfoMap)[i].acceptor[1]->nr << " " << *((*ResInfoMap)[i].acceptor[1]->name) << " with E = " << (*ResInfoMap)[i].acceptorEnergy[1] ;
372 //        }
373 //        else {
374 //            std::cout << " has no acceptor[1]" ;
375 //        }
376 //    }
377
378     /*Write Data*/
379
380     for(std::size_t i {static_cast<std::size_t>(secondaryStructureTypes::Bend)}; i != static_cast<std::size_t>(secondaryStructureTypes::Count); ++i){
381         for(std::size_t j {0}; j < SecondaryStructuresStatusMap.size(); ++j){
382             if (SecondaryStructuresStatusMap[j].getStatus(static_cast<secondaryStructureTypes>(i))){
383                 SecondaryStructuresStringLine[j] = secondaryStructureTypeNames[i] ;
384             }
385         }
386     }
387
388     /*Add breaks*/
389
390     if(SecondaryStructuresStatusMap.size() > 1){
391         for(std::size_t i {0}, linefactor{1}; i + 1 < SecondaryStructuresStatusMap.size(); ++i){
392             if( SecondaryStructuresStatusMap[i].getStatus(secondaryStructureTypes::Break) && SecondaryStructuresStatusMap[i + 1].getStatus(secondaryStructureTypes::Break) ){
393                 if(SecondaryStructuresStatusMap[i].isBreakPartnerWith(&SecondaryStructuresStatusMap[i + 1]) && SecondaryStructuresStatusMap[i + 1].isBreakPartnerWith(&SecondaryStructuresStatusMap[i]) ){
394                     SecondaryStructuresStringLine.insert(SecondaryStructuresStringLine.begin() + i + linefactor, secondaryStructureTypeNames[secondaryStructureTypes::Break]);
395                     ++linefactor;
396                 }
397             }
398         }
399     }
400     return SecondaryStructuresStringLine;
401 }
402
403 secondaryStructures::~secondaryStructures(){
404     SecondaryStructuresStatusMap.resize(0);
405     SecondaryStructuresStringLine.resize(0);
406 }
407
408 DsspTool::DsspStorage::DsspStorage(){
409     storaged_data.resize(0);
410 }
411
412 void DsspTool::DsspStorage::clearAll(){
413     storaged_data.resize(0);
414 }
415
416 std::mutex DsspTool::DsspStorage::mx;
417
418 void DsspTool::DsspStorage::storageData(int frnr, std::string data){
419     std::lock_guard<std::mutex> guardian(mx);
420     std::pair<int, std::string> datapair(frnr, data);
421     storaged_data.push_back(datapair);
422 }
423
424 std::vector<std::pair<int, std::string>> DsspTool::DsspStorage::returnData(){
425     std::sort(storaged_data.begin(), storaged_data.end());
426     return storaged_data;
427 }
428
429 void alternateNeighborhoodSearch::setCutoff(const real &cutoff_init){
430     cutoff = cutoff_init;
431 }
432
433 void alternateNeighborhoodSearch::FixAtomCoordinates(real &coordinate, const real vector_length){
434     while (coordinate < 0) {
435         coordinate += vector_length;
436     }
437     while (coordinate >= vector_length) {
438         coordinate -= vector_length;
439     }
440 }
441
442 void alternateNeighborhoodSearch::ReCalculatePBC(int &x, const int &x_max) {
443     if (x < 0) {
444         x += x_max;
445     }
446     if (x >= x_max) {
447         x -= x_max;
448     }
449 }
450
451 void alternateNeighborhoodSearch::GetMiniBoxesMap(const t_trxframe &fr, const std::vector<ResInfo> &IndexMap){
452     rvec coordinates, box_vector_length;
453     num_of_miniboxes.resize(0);
454     num_of_miniboxes.resize(3);
455     for (std::size_t i{XX}; i <= ZZ; ++i) {
456         box_vector_length[i] = std::sqrt(
457                     std::pow(fr.box[i][XX], 2) + std::pow(fr.box[i][YY], 2) + std::pow(fr.box[i][ZZ], 2));
458         num_of_miniboxes[i] = std::floor((box_vector_length[i] / cutoff)) + 1;
459     }
460     MiniBoxesMap.resize(0);
461     MiniBoxesReverseMap.resize(0);
462     MiniBoxesMap.resize(num_of_miniboxes[XX], std::vector<std::vector<std::vector<std::size_t> > >(
463                              num_of_miniboxes[YY], std::vector<std::vector<std::size_t> >(
464                              num_of_miniboxes[ZZ], std::vector<std::size_t>(
465                              0))));
466     MiniBoxesReverseMap.resize(IndexMap.size(), std::vector<std::size_t>(3));
467     for (std::vector<ResInfo>::const_iterator i {IndexMap.begin()}; i != IndexMap.end(); ++i) {
468         for (std::size_t j{XX}; j <= ZZ; ++j) {
469             coordinates[j] = fr.x[i->getIndex(backboneAtomTypes::AtomCA)][j];
470             FixAtomCoordinates(coordinates[j], box_vector_length[j]);
471         }
472         MiniBoxesMap[std::floor(coordinates[XX] / cutoff)][std::floor(coordinates[YY] / cutoff)][std::floor(
473                           coordinates[ZZ] / cutoff)].push_back(i - IndexMap.begin());
474         for (std::size_t j{XX}; j <= ZZ; ++j){
475             MiniBoxesReverseMap[i - IndexMap.begin()][j] = std::floor(coordinates[j] / cutoff);
476         }
477     }
478 }
479
480 void alternateNeighborhoodSearch::AltPairSearch(const t_trxframe &fr, const std::vector<ResInfo> &IndexMap){
481     GetMiniBoxesMap(fr, IndexMap);
482     MiniBoxSize[XX] = MiniBoxesMap.size();
483     MiniBoxSize[YY] = MiniBoxesMap.front().size();
484     MiniBoxSize[ZZ] = MiniBoxesMap.front().front().size();
485     PairMap.resize(0);
486     PairMap.resize(IndexMap.size(), std::vector<bool>(IndexMap.size(), false));
487     ResiI = PairMap.begin();
488     ResiJ = ResiI->begin();
489
490     for (std::vector<ResInfo>::const_iterator i = IndexMap.begin(); i != IndexMap.end(); ++i){
491         for (offset[XX] = -1; offset[XX] <= 1; ++offset[XX]) {
492             for (offset[YY] = -1; offset[YY] <= 1; ++offset[YY]) {
493                 for (offset[ZZ] = -1; offset[ZZ] <= 1; ++offset[ZZ]) {
494                     for (std::size_t k{XX}; k <= ZZ; ++k) {
495                         fixBox[k] = MiniBoxesReverseMap[i - IndexMap.begin()][k] + offset[k];
496                         ReCalculatePBC(fixBox[k], MiniBoxSize[k]);
497                     }
498                     for (std::size_t j{0}; j < MiniBoxesMap[fixBox[XX]][fixBox[YY]][fixBox[ZZ]].size(); ++j) {
499                         if ( (i - IndexMap.begin()) != MiniBoxesMap[fixBox[XX]][fixBox[YY]][fixBox[ZZ]][j]){
500                             PairMap[i - IndexMap.begin()][MiniBoxesMap[fixBox[XX]][fixBox[YY]][fixBox[ZZ]][j]] = true;
501                             PairMap[MiniBoxesMap[fixBox[XX]][fixBox[YY]][fixBox[ZZ]][j]][i - IndexMap.begin()] = true;
502                         }
503                     }
504                 }
505             }
506         }
507     }
508 }
509
510 bool alternateNeighborhoodSearch::findNextPair(){
511
512     if(!PairMap.size()){
513         return false;
514     }
515
516     for(; ResiI != PairMap.end(); ++ResiI, ResiJ = ResiI->begin() ){
517         for(; ResiJ != ResiI->end(); ++ResiJ){
518             if(*ResiJ){
519                 resiIpos = ResiI - PairMap.begin();
520                 resiJpos = ResiJ - ResiI->begin();
521                 if ( ResiJ != ResiI->end() ){
522                     ++ResiJ;
523                 }
524                 else if (ResiI != PairMap.end()) {
525                     ++ResiI;
526                     ResiJ = ResiI->begin();
527                 }
528                 else {
529                     return false; // ???
530                 }
531                 return true;
532             }
533         }
534     }
535
536     return false;
537 }
538
539 std::size_t alternateNeighborhoodSearch::getResiI() const {
540     return resiIpos;
541 }
542
543 std::size_t alternateNeighborhoodSearch::getResiJ() const {
544     return resiJpos;
545 }
546
547
548 DsspTool::DsspStorage DsspTool::Storage;
549
550 DsspTool::DsspTool(){
551 }
552
553 void DsspTool::calculateBends(const t_trxframe &fr, const t_pbc *pbc)
554 {
555    const float benddegree{ 70.0 }, maxdist{ 2.5 };
556    float       degree{ 0 }, vdist{ 0 }, vprod{ 0 };
557    gmx::RVec   a{ 0, 0, 0 }, b{ 0, 0, 0 };
558    for (std::size_t i{ 0 }; i + 1 < IndexMap.size(); ++i)
559    {
560        if (CalculateAtomicDistances(static_cast<int>(IndexMap[i].getIndex(backboneAtomTypes::AtomC)),
561                                     static_cast<int>(IndexMap[i + 1].getIndex(backboneAtomTypes::AtomN)),
562                                     fr,
563                                     pbc)
564            > maxdist)
565        {
566            PatternSearch.SecondaryStructuresStatusMap[i].setBreak(&PatternSearch.SecondaryStructuresStatusMap[i + 1]);
567            PatternSearch.SecondaryStructuresStatusMap[i + 1].setBreak(&PatternSearch.SecondaryStructuresStatusMap[i]);
568
569 //           std::cout << "Break between " << i + 1 << " and " << i + 2 << std::endl;
570        }
571    }
572    for (std::size_t i{ 2 }; i + 2 < IndexMap.size() ; ++i)
573    {
574        if (PatternSearch.SecondaryStructuresStatusMap[i - 2].getStatus(secondaryStructureTypes::Break) ||
575            PatternSearch.SecondaryStructuresStatusMap[i - 1].getStatus(secondaryStructureTypes::Break) ||
576            PatternSearch.SecondaryStructuresStatusMap[i].getStatus(secondaryStructureTypes::Break) ||
577            PatternSearch.SecondaryStructuresStatusMap[i + 1].getStatus(secondaryStructureTypes::Break)
578           )
579        {
580            continue;
581        }
582        for (int j{ 0 }; j < 3; ++j)
583        {
584            a[j] = fr.x[IndexMap[i].getIndex(backboneAtomTypes::AtomCA)][j]
585                   - fr.x[IndexMap[i - 2].getIndex(backboneAtomTypes::AtomCA)][j];
586            b[j] = fr.x[IndexMap[i + 2].getIndex(backboneAtomTypes::AtomCA)][j]
587                   - fr.x[IndexMap[i].getIndex(backboneAtomTypes::AtomCA)][j];
588        }
589        vdist = (a[0] * b[0]) + (a[1] * b[1]) + (a[2] * b[2]);
590        vprod = CalculateAtomicDistances(IndexMap[i - 2].getIndex(backboneAtomTypes::AtomCA),
591                                         IndexMap[i].getIndex(backboneAtomTypes::AtomCA),
592                                         fr,
593                                         pbc)
594                * gmx::c_angstrom / gmx::c_nano
595                * CalculateAtomicDistances(IndexMap[i].getIndex(backboneAtomTypes::AtomCA),
596                                           IndexMap[i + 2].getIndex(backboneAtomTypes::AtomCA),
597                                           fr,
598                                           pbc)
599                * gmx::c_angstrom / gmx::c_nano;
600        degree = std::acos(vdist / vprod) * gmx::c_rad2Deg;
601        if (degree > benddegree)
602        {
603            PatternSearch.SecondaryStructuresStatusMap[i].setStatus(secondaryStructureTypes::Bend);
604        }
605    }
606 }
607
608 void DsspTool::calculateHBondEnergy(ResInfo& Donor,
609                        ResInfo& Acceptor,
610                        const t_trxframe&          fr,
611                        const t_pbc*               pbc)
612 {
613    /*
614     * DSSP uses eq from dssp 2.x
615     * kCouplingConstant = 27.888,  //  = 332 * 0.42 * 0.2
616     * E = k * (1/rON + 1/rCH - 1/rOH - 1/rCN) where CO comes from one AA and NH from another
617     * if R is in A
618     * Hbond if E < -0.5
619     */
620
621     const float kCouplingConstant = 27.888;
622     const float minimalAtomDistance{ 0.5 },
623             minEnergy{ -9.9 };
624     float HbondEnergy{ 0 };
625     float distanceNO{ 0 }, distanceHC{ 0 }, distanceHO{ 0 }, distanceNC{ 0 };
626
627    if( !(Donor.is_proline) ){
628        if (Acceptor.getIndex(backboneAtomTypes::AtomC) && Acceptor.getIndex(backboneAtomTypes::AtomO)
629            && Donor.getIndex(backboneAtomTypes::AtomN) && ( Donor.getIndex(backboneAtomTypes::AtomH) || (initParams.addHydrogens) ) )  // Kinda ew
630        {
631
632            distanceNO = CalculateAtomicDistances(
633                    Donor.getIndex(backboneAtomTypes::AtomN), Acceptor.getIndex(backboneAtomTypes::AtomO), fr, pbc);
634            distanceNC = CalculateAtomicDistances(
635                    Donor.getIndex(backboneAtomTypes::AtomN), Acceptor.getIndex(backboneAtomTypes::AtomC), fr, pbc);
636
637            if (initParams.addHydrogens){
638                if (Donor.prevResi != nullptr && Donor.prevResi->getIndex(backboneAtomTypes::AtomC) && Donor.prevResi->getIndex(backboneAtomTypes::AtomO)){
639 //                   std::cout << "On donor " << Donor.info->nr << *(Donor.info->name) << std::endl;
640 //                   std::cout << "Prev donor is " << Donor.prevResi->info->nr << *(Donor.prevResi->info->name) << std::endl;
641 //                   std::cout << "Prev C index is " << Donor.prevResi->getIndex(backboneAtomTypes::AtomC) << std::endl;
642 //                   std::cout << "Prev O index is " << Donor.prevResi->getIndex(backboneAtomTypes::AtomO) << std::endl;
643                    rvec atomH{};
644                    float prevCODist {CalculateAtomicDistances(Donor.prevResi->getIndex(backboneAtomTypes::AtomC), Donor.prevResi->getIndex(backboneAtomTypes::AtomO), fr, pbc)};
645                    for (int i{XX}; i <= ZZ; ++i){
646                        float prevCO = fr.x[Donor.prevResi->getIndex(backboneAtomTypes::AtomC)][i] - fr.x[Donor.prevResi->getIndex(backboneAtomTypes::AtomO)][i];
647                        atomH[i] = prevCO / prevCODist;
648                    }
649                    distanceHO = CalculateAtomicDistances(atomH, Acceptor.getIndex(backboneAtomTypes::AtomO), fr, pbc);
650                    distanceHC = CalculateAtomicDistances(atomH, Acceptor.getIndex(backboneAtomTypes::AtomC), fr, pbc);
651                }
652                else{
653                    distanceHO = distanceNO;
654                    distanceHC = distanceNC;
655                }
656            }
657            else {
658                distanceHO = CalculateAtomicDistances(
659                        Donor.getIndex(backboneAtomTypes::AtomH), Acceptor.getIndex(backboneAtomTypes::AtomO), fr, pbc);
660                distanceHC = CalculateAtomicDistances(
661                        Donor.getIndex(backboneAtomTypes::AtomH), Acceptor.getIndex(backboneAtomTypes::AtomC), fr, pbc);
662            }
663
664            if (CalculateAtomicDistances(
665                        Donor.getIndex(backboneAtomTypes::AtomCA), Acceptor.getIndex(backboneAtomTypes::AtomCA), fr, pbc)
666                < minimalCAdistance)
667            {
668                if ((distanceNO < minimalAtomDistance) || (distanceHC < minimalAtomDistance)
669                    || (distanceHO < minimalAtomDistance) || (distanceNC < minimalAtomDistance))
670                {
671                    HbondEnergy = minEnergy;
672
673 //                   std::cout << "HBOND exists cause of distance" << std::endl;
674                }
675                else
676                {
677                    HbondEnergy =
678                            kCouplingConstant
679                            * ((1 / distanceNO) + (1 / distanceHC) - (1 / distanceHO) - (1 / distanceNC));
680                    HbondEnergy = std::round(HbondEnergy * 1000) / 1000;
681
682 //                   std::cout.precision(5);
683 //                   std::cout << "Calculated ENERGY = " << HbondEnergy << std::endl;
684
685 //                   if ( HbondEnergy == 0){
686 //                       std::cout << "Calculated ENERGY = " << HbondEnergy << " For donor " << Donor.info->nr << " and acceptor " << Acceptor.info->nr << std::endl;
687 //                   }
688
689                    if ( HbondEnergy < minEnergy ){
690                        HbondEnergy = minEnergy;
691                    }
692                }
693            }
694        }
695    }
696 //   else {
697 //       std::cerr << "PRO DETECTED! THIS IS RESI № " << Donor.info->nr << std::endl; //IT WORKS JUST FINE
698 //   }
699
700    if (HbondEnergy < Donor.acceptorEnergy[0]){
701        Donor.acceptor[1] = Donor.acceptor[0];
702        Donor.acceptor[0] = Acceptor.info;
703        Donor.acceptorEnergy[0] = HbondEnergy;
704    }
705    else if (HbondEnergy < Donor.acceptorEnergy[1]){
706        Donor.acceptor[1] = Acceptor.info;
707        Donor.acceptorEnergy[1] = HbondEnergy;
708    }
709
710    if (HbondEnergy < Acceptor.donorEnergy[0]){
711        Acceptor.donor[1] = Acceptor.donor[0];
712        Acceptor.donor[0] = Donor.info;
713        Acceptor.donorEnergy[0] = HbondEnergy;
714    }
715    else if (HbondEnergy < Acceptor.donorEnergy[1]){
716        Acceptor.donor[1] = Donor.info;
717        Acceptor.donorEnergy[1] = HbondEnergy;
718    }
719 }
720
721
722 /* Calculate Distance From B to A */
723 float DsspTool::CalculateAtomicDistances(const int &A, const int &B, const t_trxframe &fr, const t_pbc *pbc)
724 {
725    gmx::RVec r{ 0, 0, 0 };
726    pbc_dx(pbc, fr.x[A], fr.x[B], r.as_vec());
727    return r.norm(); // TODO * gmx::c_nm2A; if not PDB, i guess????
728    return r.norm() * gmx::c_nm2A; // TODO * gmx::c_nm2A; if not PDB, i guess????
729 }
730
731 /* Calculate Distance From B to A, where A is only fake coordinates */
732 float DsspTool::CalculateAtomicDistances(const rvec &A, const int &B, const t_trxframe &fr, const t_pbc *pbc)
733 {
734    gmx::RVec r{ 0, 0, 0 };
735    pbc_dx(pbc, A, fr.x[B], r.as_vec());
736    return r.norm(); // TODO * gmx::c_nm2A; if not PDB, i guess????
737    return r.norm() * gmx::c_nm2A; // TODO * gmx::c_nm2A; if not PDB, i guess????
738 }
739
740 void DsspTool::initAnalysis(/*const TrajectoryAnalysisSettings &settings,*/const TopologyInformation& top, const initParameters &initParamz)
741 {
742
743    std::cout << "Init started" << std::endl;
744    initParams = initParamz;
745    ResInfo _backboneAtoms;
746    std::size_t                 i{ 0 };
747    std::string proLINE;
748    int resicompare{ top.atoms()->atom[static_cast<std::size_t>(*(initParams.sel_.atomIndices().begin()))].resind };
749    IndexMap.resize(0);
750    IndexMap.push_back(_backboneAtoms);
751    IndexMap[i].info = &(top.atoms()->resinfo[resicompare]);
752    proLINE = *(IndexMap[i].info->name);
753    if( proLINE.compare("PRO") == 0 ){
754        IndexMap[i].is_proline = true;
755    }
756
757    for (gmx::ArrayRef<const int>::iterator ai{ initParams.sel_.atomIndices().begin() }; (ai != initParams.sel_.atomIndices().end()); ++ai){
758        if (resicompare != top.atoms()->atom[static_cast<std::size_t>(*ai)].resind)
759        {
760            ++i;
761            resicompare = top.atoms()->atom[static_cast<std::size_t>(*ai)].resind;
762            IndexMap.emplace_back(_backboneAtoms);
763            IndexMap[i].info = &(top.atoms()->resinfo[resicompare]);
764            proLINE = *(IndexMap[i].info->name);
765            if( proLINE.compare("PRO") == 0 ){
766                IndexMap[i].is_proline = true;
767            }
768
769        }
770        std::string atomname(*(top.atoms()->atomname[static_cast<std::size_t>(*ai)]));
771        if (atomname == backboneAtomTypeNames[backboneAtomTypes::AtomCA])
772        {
773            IndexMap[i]._backboneIndices[static_cast<std::size_t>(backboneAtomTypes::AtomCA)] = *ai;
774        }
775        else if (atomname == backboneAtomTypeNames[backboneAtomTypes::AtomC])
776        {
777            IndexMap[i]._backboneIndices[static_cast<std::size_t>(backboneAtomTypes::AtomC)] = *ai;
778        }
779        else if (atomname == backboneAtomTypeNames[backboneAtomTypes::AtomO])
780        {
781            IndexMap[i]._backboneIndices[static_cast<std::size_t>(backboneAtomTypes::AtomO)] = *ai;
782        }
783        else if (atomname == backboneAtomTypeNames[backboneAtomTypes::AtomN])
784        {
785            IndexMap[i]._backboneIndices[static_cast<std::size_t>(backboneAtomTypes::AtomN)] = *ai;
786        }
787        else if (atomname == backboneAtomTypeNames[backboneAtomTypes::AtomH] && initParamz.addHydrogens == false) // Юзать водород в структуре
788        {
789            IndexMap[i]._backboneIndices[static_cast<std::size_t>(backboneAtomTypes::AtomH)] = *ai;
790        }
791
792 //       if( atomname == backboneAtomTypeNames[backboneAtomTypes::AtomCA] || atomname == backboneAtomTypeNames[backboneAtomTypes::AtomC] || atomname == backboneAtomTypeNames[backboneAtomTypes::AtomO]
793 //       || atomname == backboneAtomTypeNames[backboneAtomTypes::AtomN] || atomname == backboneAtomTypeNames[backboneAtomTypes::AtomH]){
794 //           std::cout << "Atom " << atomname << " №" << *ai << " From Resi " << *(top.atoms()->resinfo[i].name) << " №" << resicompare << std::endl;
795 //       }
796    }
797
798    for (std::size_t j {1}; j < IndexMap.size(); ++j){
799        IndexMap[j].prevResi = &(IndexMap[j - 1]);
800
801        IndexMap[j - 1].nextResi = &(IndexMap[j]);
802
803 //           std::cout << "Resi " << IndexMap[i].info->nr << *(IndexMap[i].info->name) << std::endl;
804 //           std::cout << "Prev resi is " << IndexMap[i].prevResi->info->nr << *(IndexMap[i].prevResi->info->name) << std::endl;
805 //           std::cout << "Prev resi's next resi is " << IndexMap[i - 1].nextResi->info->nr << *(IndexMap[i - 1].nextResi->info->name) << std::endl;
806 //         std::cout << IndexMap[j].prevResi->info->nr;
807 //         std::cout << *(IndexMap[j].prevResi->info->name) ;
808 //         std::cout << " have CA = " << IndexMap[j].prevResi->getIndex(backboneAtomTypes::AtomCA) ;
809 //         std::cout << " C = " << IndexMap[j].prevResi->getIndex(backboneAtomTypes::AtomC);
810 //         std::cout << " O = " << IndexMap[j].prevResi->getIndex(backboneAtomTypes::AtomO);
811 //         std::cout << " N = " << IndexMap[j].prevResi->getIndex(backboneAtomTypes::AtomN);
812 //         std::cout << " H = " << IndexMap[j].prevResi->getIndex(backboneAtomTypes::AtomH) << std::endl;
813    }
814
815    nres = i + 1;
816 }
817
818 void DsspTool::analyzeFrame(int frnr, const t_trxframe &fr, t_pbc *pbc)
819 {
820
821     switch(initParams.NBS){
822     case (NBSearchMethod::Classique): {
823
824         // store positions of CA atoms to use them for nbSearch
825         std::vector<gmx::RVec> positionsCA_;
826         for (std::size_t i{ 0 }; i < IndexMap.size(); ++i)
827         {
828             positionsCA_.emplace_back(fr.x[IndexMap[i].getIndex(backboneAtomTypes::AtomCA)]);
829         }
830
831         AnalysisNeighborhood nb_;
832         nb_.setCutoff(initParams.cutoff_);
833         AnalysisNeighborhoodPositions       nbPos_(positionsCA_);
834         gmx::AnalysisNeighborhoodSearch     start      = nb_.initSearch(pbc, nbPos_);
835         gmx::AnalysisNeighborhoodPairSearch pairSearch = start.startPairSearch(nbPos_);
836         gmx::AnalysisNeighborhoodPair       pair;
837         while (pairSearch.findNextPair(&pair))
838         {
839             if(CalculateAtomicDistances(
840                         IndexMap[pair.refIndex()].getIndex(backboneAtomTypes::AtomCA), IndexMap[pair.testIndex()].getIndex(backboneAtomTypes::AtomCA), fr, pbc)
841                 < minimalCAdistance){
842                 calculateHBondEnergy(IndexMap[pair.refIndex()], IndexMap[pair.testIndex()], fr, pbc);
843                 if (IndexMap[pair.testIndex()].info != IndexMap[pair.refIndex() + 1].info){
844                     calculateHBondEnergy(IndexMap[pair.testIndex()], IndexMap[pair.refIndex()], fr, pbc);
845                 }
846             }
847         }
848
849         break;
850     }
851     case (NBSearchMethod::Experimental): { // TODO FIX
852
853         alternateNeighborhoodSearch as_;
854
855         as_.setCutoff(initParams.cutoff_);
856
857         as_.AltPairSearch(fr, IndexMap);
858
859         while (as_.findNextPair()){
860             if(CalculateAtomicDistances(
861                         IndexMap[as_.getResiI()].getIndex(backboneAtomTypes::AtomCA), IndexMap[as_.getResiJ()].getIndex(backboneAtomTypes::AtomCA), fr, pbc)
862                 < minimalCAdistance){
863                 calculateHBondEnergy(IndexMap[as_.getResiI()], IndexMap[as_.getResiJ()], fr, pbc);
864                 if (IndexMap[as_.getResiJ()].info != IndexMap[as_.getResiI() + 1].info){
865                     calculateHBondEnergy(IndexMap[as_.getResiJ()], IndexMap[as_.getResiI()], fr, pbc);
866                 }
867             }
868         }
869
870         break;
871     }
872     default: {
873
874         for(std::vector<ResInfo>::iterator Donor {IndexMap.begin()}; Donor != IndexMap.end() ; ++Donor){
875             for(std::vector<ResInfo>::iterator Acceptor {Donor + 1} ; Acceptor != IndexMap.end() ; ++Acceptor){
876                 if(CalculateAtomicDistances(
877                             Donor->getIndex(backboneAtomTypes::AtomCA), Acceptor->getIndex(backboneAtomTypes::AtomCA), fr, pbc)
878                     < minimalCAdistance){
879                     calculateHBondEnergy(*Donor, *Acceptor, fr, pbc);
880                     if (Acceptor != Donor + 1){
881                         calculateHBondEnergy(*Acceptor, *Donor, fr, pbc);
882                     }
883                 }
884             };
885         };
886         break;
887     }
888     }
889
890
891 //    for(std::size_t i {0}; i < IndexMap.size(); ++i){
892 //        std::cout << IndexMap[i].info->nr << " " << *(IndexMap[i].info->name) << std::endl;
893 //    }
894
895    PatternSearch.initiateSearch(IndexMap, initParams.PPHelices);
896    calculateBends(fr, pbc);
897    Storage.storageData(frnr, PatternSearch.patternSearch());
898
899 }
900
901 std::vector<std::pair<int, std::string>> DsspTool::getData(){
902     return Storage.returnData();
903 }
904
905 } // namespace analysismodules
906
907 } // namespace gmx