core/data/RingBuffer.h

#ifndef CORE_RINGBUFFER_H
#define CORE_RINGBUFFER_H

#include "data/Array.h"

namespace Core {
    template<typename T, int N>
    class RingBuffer final {
        Array<T, N> data;
        int writeIndex = 0;
        int readIndex = 0;
        int values = 0;

    public:
        bool add(const T& t) {
            if(values >= N) {
                return true;
            }
            data[writeIndex] = t;
            writeIndex = (writeIndex + 1) % N;
            values++;
            return false;
        }

        int getLength() const {
            return values;
        }

        bool canRemove() const {
            return values > 0;
        }

        bool remove() {
            if(values <= 0) {
                return true;
            }
            values--;
            readIndex = (readIndex + 1) % N;
            return false;
        }

        T& operator[](int index) {
            return data[(index + readIndex) % N];
        }

        const T& operator[](int index) const {
            return data[(index + readIndex) % N];
        }

        void clear() {
            writeIndex = 0;
            readIndex = 0;
            values = 0;
        }
    };
}

#endif