#include "global-coords.hpp"

namespace floormat {

namespace {

static_assert(sizeof(decltype(local_coords::x))*8 == 8);
static_assert(sizeof(decltype(chunk_coords::x))*8 == 16);
static_assert(std::is_same_v<decltype(local_coords::x), decltype(local_coords::y)>);
static_assert(std::is_same_v<decltype(chunk_coords::x), decltype(chunk_coords::y)>);

static_assert(std::is_same_v<decltype(chunk_coords::x), decltype(chunk_coords::y)>);

static_assert(TILE_MAX_DIM == (1 << 4));

static_assert(global_coords{(int)TILE_MAX_DIM-1, (int)TILE_MAX_DIM-1, 0}.chunk() == global_coords{}.chunk());
static_assert(global_coords{(int)TILE_MAX_DIM-1, (int)TILE_MAX_DIM, 0}.chunk() == chunk_coords{0, 1});
static_assert(global_coords{(1u + (1<<15)) << 4 | 3, (2u + (1<<15)) << 4 | 4, nullptr} == global_coords{{1, 2}, {3, 4}, -1});

static_assert(global_coords{-123, 456, 1}.z() == 1);
static_assert(global_coords{-123, 511, 5}.chunk() == chunk_coords{-8, 31});

static_assert(chunk_coords_{(char)10, (char)20, (char)30} + Vector3i(1, 2, 3) == chunk_coords_{(char)11, (char)22, (char)33});
static_assert(chunk_coords_{(char)11, (char)22, (char)33} - Vector3i(1, 2, 3) == chunk_coords_{(char)10, (short)20, (short)30});

static_assert(chunk_coords_{(short)10, (short)20, (char)30} + Vector2i(1, 2) == chunk_coords_{(short)11, (short)22, (char)30});
static_assert(chunk_coords_{(short)11, (short)22, (char)30} - Vector2i(1, 2) == chunk_coords_{(short)10, (short)20, (char)30});

constexpr auto g1 = global_coords{{1, 2, 0}, {3, 0}};
constexpr auto g2 = global_coords{{1, 1, 0}, {3, TILE_MAX_DIM-1}};

static_assert(g1 - g2 == Vector2i(0, 1));
static_assert((g1 + Vector2i(0, -1)).chunk() == g2.chunk());
static_assert(g1 + Vector2i(0, -1) == g2);

} // namespace

} // namespace floormat