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State.cpp
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State.cpp
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#include "State.h"
#include "Data.h"
#include <vector>
#include <stdlib.h>
#include <cmath>
#include <iostream>
using namespace std;
State::State(double radius, int n_cities):data(radius, n_cities) {
this->data = data;
indices_ = vector<int>();
indices_.push_back(0);
indices_.push_back(0);
schedule_ = vector<int>();
for (int i=0;i<n_cities;i++) {
schedule_.push_back(i);
}
}
double State::getRadius() const{
return data.getRadius();
}
int State::getNcities() const{
return data.getNcities();
}
vector<vector<double> > State::getTabCities() const{
return data.getTabCities();
}
Data State::getData() const{
return data;
}
vector<int> State::getSchedule() const {
return schedule_;
}
void State::generateNeighbor() {
int n_cities = data.getNcities();
int i = rand() % n_cities;
int j = rand() % n_cities;
while(j == i) {
j = rand() % n_cities;
}
indices_[0] = i;
indices_[1] = j;
int temp = schedule_[i];
schedule_[i] = schedule_[j];
schedule_[j] = temp;
}
void State::comeBack() {
int i = indices_[0];
int j = indices_[1];
int temp = schedule_[i];
schedule_[i] = schedule_[j];
schedule_[j] = temp;
}
double State::evalDistance() const {
int n_cities = data.getNcities();
vector<int> schedule = schedule_;
vector<vector<double> > tab_cities = data.getTabCities();
double distance = 0.0;
for (int i=0; i < n_cities - 1; i++) {
distance += sqrt( pow(tab_cities[schedule[i+1]][0] - tab_cities[schedule[i]][0], 2)
+ pow(tab_cities[schedule[i+1]][1] - tab_cities[schedule[i]][1], 2));
}
distance += sqrt( pow(tab_cities[schedule[n_cities-1]][0] - tab_cities[schedule[0]][0], 2)
+ pow(tab_cities[schedule[n_cities-1]][1] - tab_cities[schedule[0]][1], 2));
return distance;
}
void State::display() const {
vector<int> schedule = schedule_;
Data data = this->data;
vector<vector<double> > tab_cities = data.getTabCities();
for (vector<int>::iterator it = schedule.begin() ; it != schedule.end(); ++it) {
double x = tab_cities[*it][0];
double y = tab_cities[*it][1];
cout << x << " " << y << endl;
}
}