// I WANT TO PLAY WITH YOU
//        YOUR FRIEND, AI
#include <stdio.h>
#include <unistd.h>
#include <curses.h>
//#include <conio.h>

void draw();

void keypressed(char keyboard);

int player_one_y = 13, player_two_y = 13;

int ball_x = 4, ball_y = 13;

int ball_direct_x = 1, ball_direct_y = -1;

int score_one = 0, score_two = 0;

WINDOW *win;

int main() {
    win = initscr();
    noecho();
    nodelay(win, true);
    curs_set(0);
//    draw();
    while (score_one != 21 || score_two != 21) {
        char c = getch();
        keypressed(c);

        if (ball_x - 1 == 2 && ball_direct_x == -1) {
            if (ball_y >= player_one_y - 1 && ball_y <= player_one_y + 1) {
                ball_direct_x *= -1;
            } else {
                score_two += 1;
                ball_y = 13;
                ball_x = 3;
                player_one_y = 13;
                player_two_y = 13;
                ball_direct_x = 1;
                ball_direct_y = 1;
            }
        }
        if (ball_x + 1 == 77 && ball_direct_x == 1) {
            if (ball_y >= player_two_y - 1 && ball_y <= player_two_y + 1) {
                ball_direct_x *= -1;
            } else {
                score_one += 1;
                ball_y = 13;
                ball_x = 76;
                player_two_y = 13;
                player_one_y = 13;
                ball_direct_x = -1;
                ball_direct_y = -1;
            }
        }
        if (ball_y == 1 || ball_y == 23) {
            ball_direct_y *= -1;
        }
        ball_x += ball_direct_x;
        ball_y += ball_direct_y;

        draw();

        usleep(50000);
    }

}

void draw() {
//    move(0,0);
//    system("@cls||clear");
    printf("\33c\e[3J");
    for (int y = 0; y < 25; y++) {
        for (int x = 0; x < 80; x++) {
            if (y == 0 || y == 24)
                printf("%c", '-');
            else if (x == 0 || x == 79)
                printf("%c", '|');
            else if ((y <= (player_one_y + 1) && y >= player_one_y - 1) && x == 2)
                printf("%c", ']');
            else if (y == ball_y && x == ball_x)
                printf("%c", '*');
            else if ((y <= (player_two_y + 1) && y >= player_two_y - 1) && x == 77)
                printf("%c", '[');
            else
                printf("%c", ' ');
        }
        printf("\n");
    }
    printf("player 1 %d - %d player 2\n", score_one, score_two);
}

void keypressed(char keyboard) {
    if (keyboard == 'z' && player_one_y < 24) {
        player_one_y++;
    } else if (keyboard == 'a' && player_one_y > 3) {
        player_one_y--;
    } else if (keyboard == 'm' && player_two_y < 24) {
        player_two_y++;
    } else if (keyboard == 'k' && player_two_y > 3) {
        player_two_y--;
    }
}