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

#define UP 'z'
#define DOWN 's'
#define LEFT 'q'
#define RIGHT 'd'

#define TRUE 1
#define FALSE 0

#define DIMENSION 15

/*int randMax = DIMENSION - 1;
int HEART_X1 = 1 + (int)(10.0 * rand() / (randMax+ 1.0));
int HEART_Y1 = 1 + (int)(10.0 * rand() / (randMax+ 1.0));
int HEART_X2 = HEART_X1 + 1;
int HEART_Y2 = HEART_Y1;*/
#define HEART_X1 1
#define HEART_Y1 2
#define HEART_X2 1
#define HEART_Y2 3

int pField [DIMENSION][DIMENSION];
int hLoc [2];
int hDir = DOWN;
int run = TRUE;

void move (char);
void eventCheck (int);
int collisionCheck (void);
void drawGFX (void);

int main (void)
{
    char input = NULL;
    int i = NULL;
    int j = NULL;
    int pEvent = NULL;

    //set every position at zero
    for (i = 0; i < DIMENSION; i++)
        for (j = 0; j < DIMENSION; j++)
            pField[i][j] = 0;
    //set hero in the middle
    hLoc[1] = DIMENSION / 2;
    hLoc[2] = DIMENSION / 2;
    pField[DIMENSION / 2][DIMENSION / 2] = 1;
    //set heart
    pField[HEART_X1][HEART_Y1] = 2;
    pField[HEART_X2][HEART_Y2] = 3;

    drawGFX();
    while (run)
    {
        input = getch();
        move (input);
        pEvent = collisionCheck();
        eventCheck (pEvent);
        drawGFX();
    }
    drawGFX();
    printf ("IK HOU VAN U LOTTE! :D  VOOR EEUWIG\n              uw Toon\n\n\n");

    return EXIT_SUCCESS;
}

void move (char input)
{
    int x;
    int y;

    pField[hLoc[2]][hLoc[1]] = 0;
    if (input != hDir)
    {
        if (input == UP || input == DOWN || input == LEFT || input == RIGHT)
        {
            hDir = input;
        }
    }
    else
    {
        if (input == UP && hLoc[2] > 0)
            hLoc[2] --;
        if (input == DOWN && hLoc[2] < DIMENSION - 1)
            hLoc[2] ++;
        if (input == LEFT && hLoc[1] > 0)
            hLoc[1] --;
        if (input == RIGHT && hLoc[1] < DIMENSION - 1)
            hLoc[1] ++;
    }
    x = hLoc[1];
    y = hLoc[2];
    pField[y][x] = 1;
}

int collisionCheck (void)
{
    if (hLoc[2] == HEART_X1 && hLoc[1] == HEART_Y1)
        return 1;
    if (hLoc[2] == HEART_X2 && hLoc[1] == HEART_Y2)
        return 1;
    return 0;
}

void eventCheck (int pEvent)
{
    if (pEvent == 1)
        run = FALSE;
}

void drawGFX (void)
{
    int i;
    int j;

    system("cls");
    printf ("Vindt de weg naar mijn hart!\n\n");
    for (i = 0; i < DIMENSION + 2; i++)
        printf ("#");
    printf ("\n");

    for (i = 0; i < DIMENSION; i++)
    {
        printf ("#");
        for (j = 0; j < DIMENSION; j++)
        {
            if (pField[i][j] == 0)
                printf (" ");
            if (pField[i][j] == 1)
            {
                if (hDir == UP)
                    printf ("^");
                if (hDir == DOWN)
                    printf ("v");
                if (hDir == LEFT)
                    printf ("<");
                if (hDir == RIGHT)
                    printf (">");
            }
            if (pField[i][j] == 2)
                printf ("<");
            if (pField[i][j] == 3)
                printf ("3");
        }
        printf ("#");
        printf ("\n");
    }
    for (i = 0; i < DIMENSION + 2; i++)
        printf ("#");
    printf ("\n");
}