55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
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#include "Distances.h"
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Distances::Distances(std::string basePath)
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{
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std::string filePath = basePath + "/distances.csv";
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if (!std::filesystem::exists(filePath.c_str()))
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throw std::runtime_error("File doesn't exist");
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std::cout << "Reading file " << filePath << " for distances\n";
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std::ifstream file;
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file.open(filePath, std::ios::in);
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if (!file.is_open())
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throw std::runtime_error("Failed to open file");
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std::string line;
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while (getline(file, line)) {
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if (line.empty())
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continue;
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std::string element;
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std::istringstream stream(line);
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std::vector<float> row;
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while (getline(stream, element, ',')) {
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int val = stoi(element);
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row.push_back(val);
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}
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this->matrix.push_back(row);
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}
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file.close();
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if (this->matrix.size() == 0)
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throw std::runtime_error("File contained no data");
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}
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float Distances::getDistance(int x, int y)
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{
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int xMax = this->matrix.size() - 1;
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int yMax = this->matrix[0].size() - 1;
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if (yMax == 0)
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throw std::runtime_error("Distances not initialised properly");
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else if (x < 1 || x > xMax)
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throw std::domain_error("X coordiante must be between 1 and " + xMax);
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else if (y < 1 || y > yMax)
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throw std::domain_error("Y coordinate must be between 1 and " + yMax);
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return this->matrix[x - 1][y - 1];
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}
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float Distances::getTravelTime(int x, int y)
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{
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return this->getDistance(x, y) / 55 * 60;
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}
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