#include "Map.h"

#include <random>

Map::Map(int width, int height) : _width(width), _height(height) {}

int Map::width() { return _width; }

int Map::height() { return _height; }

vec2 Map::food_pos() { return _food_pos; }

// bool Map::CreateFood(int length, vec2 *exclude) {

bool Map::CreateFood(const std::vector<vec2> &exclude) {

std::random_device rd;

std::default_random_engine re{rd()};

std::uniform_int_distribution<int> gen_x(0, _width - 1);

std::uniform_int_distribution<int> gen_y(0, _height - 1);

vec2 food_pos = vec2{gen_x(re), gen_y(re)};

vec2 food_pos_start = food_pos;

bool collision_occurred = false;

for (; collision(exclude, food_pos) && food_pos != food_pos_start;) {

collision_occurred = true;

food_pos = food_pos + vec2{1, 0};

if (!in_bound(_width, _height, food_pos)) {

food_pos = vec2{0, (food_pos.y + 1) % _height};

}

}

if (collision_occurred && food_pos == food_pos_start) {

return false;

}

_food_pos = food_pos;

return true;

}