#include "labyrinth.h"

#include "global.h"

#include "stdio.h"
#include "stdlib.h"

void turn_direction_right(Direction *direction){
    switch (*direction) {
        case N:
            *direction = E;
            break;
        case E:
            *direction = S;
            break;
        case S:
            *direction = W;
            break;
        case W:
            *direction = N;
            break;
    }
}

void lab_move(unsigned short *x, unsigned short *y, Direction direction){

    if (direction == N){
        *x = *x - 1;
        return;
    }
    if (direction == E){
        *y = *y + 1;
        return;
    }
    if (direction == S){
        *x = *x + 1;
        return;
    }
    if (direction == W){
        *y = *y - 1;
        return;
    }

}

void set_wall(Field_State** field, unsigned short x, unsigned short y) {
    field[x][y] = WALL;
}

void init_field(Field_State** field, unsigned short len_x, unsigned short len_y){
	for (int c_x = 0; c_x < len_x; c_x++){
		for (int c_y = 0; c_y < len_y; c_y++){
			field[c_x][c_y] = WAY;
		}
	}
}

short lab_can_move(Field_State** field, unsigned short x, unsigned short y, Direction direction, unsigned short len_x, unsigned short len_y){
	
    lab_move(&x, &y, direction);
    if (x >= len_x){
        return 1;
    }
	if (y >= len_y){
		return 1;
	}
    if (field[x][y] == WALL){
        return 1;
    }

    return 0;
}