main.cpp

#include <string>
#include <array>
#include <map>
#include <ostream>

#include "noise.h"
#include "colors.h"

#define SIZE 400

int main() {

    std::ofstream img("test.pbm");
    img << "P3" << std::endl;
    img << SIZE << " " << SIZE << std::endl;
    img << "255" << std::endl;


    // Noise generation
    NoiseGenerator ng(time(NULL), 8, 4, 4, 0.5);
    ng.setScaling(1, 1);

    std::array<std::array<double, SIZE>, SIZE> arr = {};
    for (int y = 0; y < SIZE; ++y) {
        for (int x = 0; x < SIZE; ++x) {
            double dx = x / static_cast<double>(SIZE);
            double dy = y / static_cast<double>(SIZE);

            arr[x][y] = ng.noise(dx, dy, 0.0);
        }
    }

    // Color
    ColorMap colors("resources/colormap.txt");

    for (int y = 0; y < SIZE; ++y) {
        for (int x = 0; x < SIZE; ++x) {
            int height = round(arr[x][y] * (colors.size() - 1));
            Color color = colors.getColorStruct(height);
            img << (int)color.r << " " << (int)color.g << " " << (int)color.b << " " <<  std::endl;
        }
        img << std::endl;
    }

    img.close();
    return 0;
}