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#pragma once
#include "tile.hpp"
#include <array>
#include <Corrade/Containers/ArrayViewStl.h>
#include <Magnum/Math/Vector2.h>
#include <Magnum/Math/Vector3.h>
#include <Magnum/GL/Mesh.h>
#include <Magnum/GL/Buffer.h>
namespace floormat {
struct tile_shader;
struct chunk;
struct wall_mesh final
{
wall_mesh();
void draw(tile_shader& shader, chunk& c);
private:
static constexpr auto COUNT1 = TILE_MAX_DIM*2, COUNT = COUNT1 * COUNT1;
struct vertex final {
Vector2 texcoords;
};
using quad = std::array<vertex, 4>;
using vertex_array = std::array<quad, COUNT>;
using texture_array = std::array<GL::Texture2D*, COUNT>;
static void maybe_add_tile(vertex_array& data, texture_array& textures, tile& x, std::size_t pos);
static void add_wall(vertex_array& data, texture_array& textures, tile_image& img, std::size_t pos);
GL::Mesh _mesh;
GL::Buffer _vertex_buffer{vertex_array{}, Magnum::GL::BufferUsage::DynamicDraw},
_index_buffer{make_index_array()},
_positions_buffer{make_position_array()};
static std::array<std::array<UnsignedShort, 6>, COUNT> make_index_array();
static std::array<std::array<Vector3, 4>, COUNT> make_position_array();
};
} // namespace floormat
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