Simulation of Doppler Effect Gaming Project in C++

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1 year ago

#include <iostream>
#include <cmath>

class DopplerEffect {
public:
    DopplerEffect(double sourceFrequency, double speedOfSound)
        : sourceFrequency(sourceFrequency), speedOfSound(speedOfSound) {}

    // Calculates the observed frequency when the source and observer are moving
    double calculateObservedFrequency(double observerSpeed, double sourceSpeed) const {
        // Doppler effect formula:
        // f' = f * (v + vo) / (v + vs)
        // Where:
        // f' is the observed frequency
        // f is the source frequency
        // v is the speed of sound
        // vo is the speed of the observer (positive if moving towards the source)
        // vs is the speed of the source (positive if moving away from the observer)

        double observedFrequency = sourceFrequency * (speedOfSound + observerSpeed) / (speedOfSound + sourceSpeed);
        return observedFrequency;
    }

private:
    double sourceFrequency; // Frequency of the source in Hz
    double speedOfSound;    // Speed of sound in the medium (e.g., air) in m/s
};

int main() {
    double sourceFrequency = 440.0; // Frequency of the source (e.g., a sound wave) in Hz
    double speedOfSound = 343.0;    // Speed of sound in air at 20°C in m/s

    DopplerEffect doppler(sourceFrequency, speedOfSound);

    // User input for observer's and source's speeds
    double observerSpeed, sourceSpeed;
    std::cout << "Enter the speed of the observer (m/s, positive if moving towards the source): ";
    std::cin >> observerSpeed;
    std::cout << "Enter the speed of the source (m/s, positive if moving away from the observer): ";
    std::cin >> sourceSpeed;

    double observedFrequency = doppler.calculateObservedFrequency(observerSpeed, sourceSpeed);
    std::cout << "Observed Frequency: " << observedFrequency << " Hz" << std::endl;

    return 0;
}

#include <iostream>

#include <cmath>

class DopplerEffect {

public:

DopplerEffect(double sourceFrequency, double speedOfSound)

: sourceFrequency(sourceFrequency), speedOfSound(speedOfSound) {}

// Calculates the observed frequency when the source and observer are moving

double calculateObservedFrequency(double observerSpeed, double sourceSpeed) const {

// Doppler effect formula:

// f' = f * (v + vo) / (v + vs)

// Where:

// f' is the observed frequency

// f is the source frequency

// v is the speed of sound

// vo is the speed of the observer (positive if moving towards the source)

// vs is the speed of the source (positive if moving away from the observer)

double observedFrequency = sourceFrequency * (speedOfSound + observerSpeed) / (speedOfSound + sourceSpeed);

return observedFrequency;

}

private:

double sourceFrequency; // Frequency of the source in Hz

double speedOfSound; // Speed of sound in the medium (e.g., air) in m/s

};

int main() {

double sourceFrequency = 440.0; // Frequency of the source (e.g., a sound wave) in Hz

double speedOfSound = 343.0; // Speed of sound in air at 20°C in m/s

DopplerEffect doppler(sourceFrequency, speedOfSound);

// User input for observer's and source's speeds

double observerSpeed, sourceSpeed;

std::cout << "Enter the speed of the observer (m/s, positive if moving towards the source): ";

std::cin >> observerSpeed;

std::cout << "Enter the speed of the source (m/s, positive if moving away from the observer): ";

std::cin >> sourceSpeed;

double observedFrequency = doppler.calculateObservedFrequency(observerSpeed, sourceSpeed);

std::cout << "Observed Frequency: " << observedFrequency << " Hz" << std::endl;

return 0;

}

Explanation

Header Files:
- <iostream>: For input and output operations.
- <cmath>: Included for completeness, though not used in this specific example.
DopplerEffect Class:
- Constructor: Initializes the sourceFrequency and speedOfSound. The source frequency is the frequency of the wave emitted by the source, and the speed of sound is the propagation speed of the wave through the medium.
- calculateObservedFrequency(): Uses the Doppler effect formula to compute the observed frequency:
  - Formula: f' = f * (v + vo) / (v + vs)
    - f' = observed frequency
    - f = source frequency
    - v = speed of sound
    - vo = speed of the observer (positive if moving towards the source)
    - vs = speed of the source (positive if moving away from the observer)
main() Function:
- Creates an instance of DopplerEffect with a given source frequency and speed of sound.
- Prompts the user for the observer’s speed and the source’s speed.
- Calculates the observed frequency using the calculateObservedFrequency() method.
- Displays the observed frequency.

Explanation

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