Basic functionnality and configuration posssible

main.cpp

@@ -0,0 +1,144 @@
+#include <iostream>
+#include <fstream>
+#include <thread>
+#include <chrono>
+
+#include <SFML/Audio.hpp>
+#include <SFML/Window.hpp>
+
+// Program constants
+int minRange = 35000;
+int maxRange = 50000;
+
+int sampleCount = 20;
+
+std::string tempPath = "/sys/class/thermal/thermal_zone2/temp";
+
+void printUsage()
+{
+    std::cout << "Make your computer scream when it gets hot !" << std::endl;
+    std::cout << "Usage :" << std::endl;
+    std::cout << "\tNo arguments : defaults to " << minRange/1000 << "-" << maxRange/1000 << "°C, "
+              << sampleCount << " samples and temperature is read from " << "\n\t\t" << tempPath << std::endl;
+    std::cout << "\t2  arguments : minTemp maxTemp" << std::endl;
+    std::cout << "\t3  arguments : minTemp maxTemp sampleCount" << std::endl;
+    std::cout << "\t4  arguments : minTemp maxTemp sampleCount temperatureFile" << std::endl << std::endl;
+    std::cout << "Temperatures are in integer °C, sampleCount is integer > 0, "
+                 "temperatureFile is the full path to the file to read" << std::endl << std::endl;
+}
+
+int main(int argc, char** argv)
+{
+    switch (argc)
+    {
+    case 5:
+        tempPath = argv[4];
+    case 4:
+        try {
+            sampleCount = std::stoi(argv[3]);
+        } catch (std::exception&) {
+            std::cerr << "Could not convert sample count from input." << std::endl << std::endl;
+            printUsage();
+            return -1;
+        }
+    case 3:
+        try {
+            minRange = std::stoi(argv[1])*1000;
+            maxRange = std::stoi(argv[2])*1000;
+        } catch (std::exception&) {
+            std::cerr << "Could not convert temperatures from input." << std::endl << std::endl;
+            printUsage();
+            return -1;
+        }
+    case 1:
+        break;
+    default:
+        std::cerr << "Invalid argument count" << std::endl << std::endl;
+        printUsage();
+        return -1;
+    }
+
+    sf::SoundBuffer buffer;
+    if (!buffer.loadFromFile("scream.ogg"))
+    {
+        std::cerr << "Failed to open scream.ogg" << std::endl;
+        return -1;
+    }
+
+    std::ifstream tempFile(tempPath,std::ios_base::in);
+    if (!tempFile.is_open())
+    {
+        std::cerr << "Failed to open temperature data file at " << tempPath << std::endl;
+        return -1;
+    }
+
+    // Set up the scream
+    sf::Sound playingSound;
+    playingSound.setBuffer(buffer);
+    playingSound.setLoop(true);
+
+    // Set up variables
+    bool looping = true;
+
+    // Initialize array to min range
+    int tempSamples[sampleCount];
+    for (int& tempSample : tempSamples)
+    {
+        tempSample = minRange;
+    }
+
+    int currentSample = 0;
+    int currentTemp;
+
+    std::cout << "Starting ear damage..." << std::endl;
+    playingSound.play();
+
+    while (looping)
+    {
+        // Apparently unnecessary
+//        tempFile.sync();
+
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+        // Rewind to read the new value
+        tempFile.seekg(std::istream::beg);
+        tempFile >> tempSamples[currentSample];
+
+        // Advance the index and rollover at the end of the array
+        currentSample = currentSample < sampleCount - 1 ? currentSample + 1 : 0;
+        // Compute a rolling average
+        currentTemp = 0;
+        for (int tempSample : tempSamples)
+        {
+            currentTemp += tempSample/(float)sampleCount;
+        }
+
+        // Relative position of the temperature between min and max
+        float heatStrength = (currentTemp - minRange)/(float)(maxRange - minRange);
+
+        // Stop the sound if low enough, restart if inside the range
+        if (heatStrength <= 0)
+        {
+            playingSound.stop();
+            playingSound.setPitch(1);
+            std::cout << "Too cold, pausing ear damage." << std::endl;
+            continue;
+        } else if (playingSound.getStatus() == sf::Sound::Stopped) {
+            playingSound.play();
+            std::cout << "Getting hot, resuming ear damage." << std::endl;
+        }
+
+        playingSound.setPitch(1+0.5f*heatStrength);
+        playingSound.setVolume(20+80*heatStrength);
+
+        std::cout << "Temp is " << currentTemp/1000.0 << "°C at pitch " << 1+0.5*heatStrength << " and volume " << 20+80*heatStrength << std::endl;
+
+        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) looping = false;
+    }
+
+    std::cout << "Ear damage stopped." << std::endl;
+
+    tempFile.close();
+
+    return 0;
+}