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#pragma once
#include "tile.hpp"
#include "tile-atlas.hpp"
#include <array>
#include <Corrade/Containers/ArrayViewStl.h>
#include <Magnum/Magnum.h>
#include <Magnum/Math/Vector2.h>
#include <Magnum/GL/Mesh.h>
#include <Magnum/GL/Buffer.h>
namespace Magnum::Examples {
struct tile_shader;
struct chunk;
struct floor_mesh final
{
floor_mesh();
floor_mesh(floor_mesh&&) = delete;
floor_mesh(const floor_mesh&) = delete;
void set_tile(tile& x, local_coords pt);
void draw(tile_shader& shader, chunk& c);
private:
struct vertex_data final {
Vector2 texcoords;
};
using quad_data = std::array<vertex_data, 4>;
using vertex_positions_data = std::array<Vector3, 4>;
static constexpr auto quad_index_count = std::tuple_size_v<decltype(tile_atlas::indices(0))>;
using index_type = std::array<UnsignedShort, quad_index_count>;
static const std::array<index_type, TILE_COUNT> _index_data;
static const std::array<vertex_positions_data, TILE_COUNT> _position_data;
GL::Mesh _mesh;
std::array<quad_data, TILE_COUNT> _vertex_data = {};
GL::Buffer _vertex_buffer{_vertex_data, Magnum::GL::BufferUsage::DynamicDraw},
_index_buffer{_index_data, Magnum::GL::BufferUsage::StaticDraw},
_positions_buffer{_position_data, Magnum::GL::BufferUsage::StaticDraw};
};
} // namespace Magnum::Examples
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