#pragma once

#include "../Chunk.hpp"
#include "../../Math/Random.hpp"

namespace MC::World::Generation {

class Decorator {
public:
    using Pos = Vector<3, UInt>;

    virtual ~Decorator() = default;

    virtual void decorate_chunk(Chunk& chunk) = 0;

    static void put_block(Chunk& chunk, Pos pos, BlockType block);
    static void draw_column(Chunk& chunk, Pos pos, UInt height, BlockType block);
    static void draw_circle(Chunk& chunk, Pos pos, Vector<3> axis, Real radius, BlockType block);
};

class TreeDecorator final : public Decorator {
public:
    void decorate_chunk(Chunk& chunk) override;
private:
    void draw_tree(Chunk& chunk, Pos pos) const;

    static Bool is_valid_position(Pos pos);

    static constexpr UInt s_tree_radius = 3;

    Math::Random::Noise<2> m_tree_noise;
};

}