#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "snake.h"
#include "world.h"

void render(const struct state* state){
    system("clear");

    for(int y = 0; y < state->height; y++){
        for(int x = 0; x < state->width; x++){
            if(is_snake(state->snake, x, y)){
                printf("O");
            }else if(is_food_at(state, x, y)){
                printf("@");
            }else{
                printf(" ");
            }
        }
        printf("\n");
    }
}

int get_key(){
    int ch;
    if (scanf("%c", &ch) != 1){
        return -1;
    }
    return ch;
}

int main(){
    struct state game;
    init_game(&game);
    int ch;
    while(1){
        render(&game);
        ch = get_key();

        if(ch == 'q'){
            break;
        }

        if(ch == 'w'){
            game.sy = -1;
            game.sx = 0;
        }else if(ch == 's'){
            game.sy = 1;
            game.sx = 0;
        }else if(ch == 'a'){
            game.sx = -1;
            game.sy = 0;
        }else if(ch == 'd'){
            game.sx = 1;
            game.sy = 0;
        }

        int result = step_state(&game);
        if (result != END_CONTINUE) {
            break;
        }

        usleep(100000);
    }

    printf("Game Over\n");
    return 0;
}