/*
 *  Dato: 03-10-2011
 *  Kursus: Imperativ Programming
 *  Underviser: Kurt Nørmark
 *  Opgave: http://people.cs.aau.dk/~normark/impr-c/control-more-iteration-for-slide-exercise-1.html
 */

#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#define PI 3.1415926535

int main() {

    FILE *image_file;
    int i, j;
    int red, green, blue;
    int counter;

    image_file = fopen("out.pnm", "wb");

    // Header
    fputs("P6\n", image_file);
    fputs("500 500\n", image_file);
    fputs("255\n", image_file);

    counter = 0;

    // Rækker
    for(i = 0; i < 500; i++)
        // Søjler
        for (j = 0; j < 500; j++)
        {

//            if(abs(round(sin(i)*500))==j)
//            {
//                fputc(255, image_file);
//                fputc(0, image_file);
//                fputc(0, image_file);
//            }
//            else if(abs(round(cos(i)*500))==j)
//            {
//                fputc(255, image_file);
//                fputc(0, image_file);
//                fputc(0, image_file);
//            }

                fputc(abs(floor(sin(i)*sin(j)*750)) % 256, image_file); // abs(floor(sin(i)*sin(j)*500)) % 256
                fputc(abs(floor(sin(i)*sin(j)*500)) % 256, image_file); // abs(floor(asin(j)*asin(i)*1)) % 256
                fputc(abs(floor(sin(i)*sin(j)*250)) % 256, image_file); // abs(floor(sin(i+j)*asin(i+j)*1)) % 256
                counter++;
            //printf("%d, ", abs(round(cos(i)*500)));
            //printf("%d, ", abs(round(sin(i)*500)));
        }

    fclose(image_file);

    printf("%d", counter);

    return 0;
}