#include <stdio.h>
#include <stdlib.h>
#define FLOOR_SIDE_SIZE 50
#define COMMANDS 11
#define FEATHER_UP 0
#define FEATHER_DOWN 1
#define TURTLE_PARAMS 4

void printFloor(int array[][FLOOR_SIDE_SIZE]);
void move(int turtle[], int path_length);

main()
{
    int commands[COMMANDS + 4] = {2, {5, 12}, 3, {5, 12}, 3, {5, 12}, 3, {5, 12}, 1, 6, 9};
    int flooor[FLOOR_SIDE_SIZE][FLOOR_SIDE_SIZE] = {0};
    int turtle[TURTLE_PARAMS] = {0, 0, 2, 0}; // y, x, face (1-4: n s e w), feather
    int counter;

    for (counter = 0; counter < COMMANDS; counter++) {
        switch(commands[counter]) {
            case 1:
                turtle[3] = FEATHER_UP;
                break;
            case 2:
                turtle[3] = FEATHER_DOWN;
                break;
            case 3:
                (turtle[2] == 4) ? (turtle[2] = 1) : (turtle[2]++);
                break;
            case 4:
                (turtle[2] == 0) ? (turtle[2] = 4) : (turtle[2]--);
                break;
            case 5:
                move(turtle, commands[counter][1]);
                break;
            case 6:
                printFloor(flooor);
                break;
            case 9:
                counter = COMMANDS;
                break;
        }
    }
    return 0;
}

void printFloor(int flooor[][FLOOR_SIDE_SIZE])
{
    int i, j;
    for (i = 0; i < FLOOR_SIDE_SIZE; i++) {
        for (j = 0; j < FLOOR_SIDE_SIZE; j++) {
            printf("%d", flooor[i][j]);
        }
        printf("\n");
    }
}

void move(int turtle[], int path_length)
{
    int counter;
    if (turtle[2] == 1) {
        turtle[0] -= path_length;
        if (turtle[3] == FEATHER_DOWN) {
            for (counter = turtle[0]; counter < path_length; counter--) {
                flooor[counter][turtle[1]] = 1;
            }
        }
    }
    if (turtle[2] == 2) {
        turtle[0] += path_length;
        if (turtle[3] == FEATHER_DOWN) {
            for (counter = turtle[0]; counter < path_length; counter++) {
                flooor[counter][turtle[1]] = 1;
            }
        }
    }
    if (turtle[2] == 3) {
        turtle[1] += path_length;
        if (turtle[3] == FEATHER_DOWN) {
            for (counter = turtle[1]; counter < path_length; counter++) {
                flooor[turtle[0]][counter] = 1;
            }
        }
    }
    if (turtle[2] == 4) {
        turtle[1] -= path_length;
        if (turtle[3] == FEATHER_DOWN) {
            for (counter = turtle[1]; counter < path_length; counter--) {
                flooor[turtle[0]][counter] = 1;
            }
        }
    }
}