diff options
Diffstat (limited to 'game/shared/coord.hh')
| -rw-r--r-- | game/shared/coord.hh | 290 |
1 files changed, 145 insertions, 145 deletions
diff --git a/game/shared/coord.hh b/game/shared/coord.hh index 9d9be18..9f9afc7 100644 --- a/game/shared/coord.hh +++ b/game/shared/coord.hh @@ -1,145 +1,145 @@ -#pragma once - -#include "shared/const.hh" -#include "shared/types.hh" - -namespace coord -{ -constexpr chunk_pos to_chunk(const voxel_pos& vpos); -} // namespace coord - -namespace coord -{ -constexpr local_pos to_local(const voxel_pos& vpos); -constexpr local_pos to_local(const glm::fvec3& fvec); -constexpr local_pos to_local(std::size_t index); -} // namespace coord - -namespace coord -{ -constexpr voxel_pos to_voxel(const chunk_pos& cpos, const local_pos& lpos); -constexpr voxel_pos to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec); -} // namespace coord - -namespace coord -{ -constexpr std::size_t to_index(const local_pos& lpos); -} // namespace coord - -namespace coord -{ -constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec); -constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos); -constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos, const glm::fvec3& fvec); -} // namespace coord - -namespace coord -{ -constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos); -constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos); -} // namespace coord - -inline constexpr chunk_pos coord::to_chunk(const voxel_pos& vpos) -{ - return chunk_pos { - static_cast<chunk_pos::value_type>(vpos.x >> CHUNK_BITSHIFT), - static_cast<chunk_pos::value_type>(vpos.y >> CHUNK_BITSHIFT), - static_cast<chunk_pos::value_type>(vpos.z >> CHUNK_BITSHIFT), - }; -} - -inline constexpr local_pos coord::to_local(const voxel_pos& vpos) -{ - return local_pos { - static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.x, CHUNK_SIZE)), - static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.y, CHUNK_SIZE)), - static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.z, CHUNK_SIZE)), - }; -} - -inline constexpr local_pos coord::to_local(const glm::fvec3& fvec) -{ - return local_pos { - static_cast<local_pos::value_type>(fvec.x), - static_cast<local_pos::value_type>(fvec.y), - static_cast<local_pos::value_type>(fvec.z), - }; -} - -inline constexpr local_pos coord::to_local(std::size_t index) -{ - return local_pos { - static_cast<local_pos::value_type>((index % CHUNK_SIZE)), - static_cast<local_pos::value_type>((index / CHUNK_SIZE) / CHUNK_SIZE), - static_cast<local_pos::value_type>((index / CHUNK_SIZE) % CHUNK_SIZE), - }; -} - -inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const local_pos& lpos) -{ - return voxel_pos { - lpos.x + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT), - lpos.y + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT), - lpos.z + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT), - }; -} - -inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec) -{ - return voxel_pos { - static_cast<voxel_pos::value_type>(fvec.x) + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT), - static_cast<voxel_pos::value_type>(fvec.y) + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT), - static_cast<voxel_pos::value_type>(fvec.z) + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT), - }; -} - -inline constexpr std::size_t coord::to_index(const local_pos& lpos) -{ - return static_cast<std::size_t>((lpos.y * CHUNK_SIZE + lpos.z) * CHUNK_SIZE + lpos.x); -} - -inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec) -{ - return glm::fvec3 { - static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + fvec.x, - static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + fvec.y, - static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + fvec.z, - }; -} - -inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos) -{ - return glm::fvec3 { - static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) - pivot_fvec.x, - static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) - pivot_fvec.y, - static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) - pivot_fvec.z, - }; -} - -inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos, - const glm::fvec3& fvec) -{ - return glm::fvec3 { - static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + (fvec.x - pivot_fvec.x), - static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + (fvec.y - pivot_fvec.y), - static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + (fvec.z - pivot_fvec.z), - }; -} - -inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos) -{ - return glm::fvec3 { - static_cast<float>(cpos.x << CHUNK_BITSHIFT), - static_cast<float>(cpos.y << CHUNK_BITSHIFT), - static_cast<float>(cpos.z << CHUNK_BITSHIFT), - }; -} - -inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos) -{ - return glm::fvec3 { - fpos.x + static_cast<float>(cpos.x << CHUNK_BITSHIFT), - fpos.y + static_cast<float>(cpos.y << CHUNK_BITSHIFT), - fpos.z + static_cast<float>(cpos.z << CHUNK_BITSHIFT), - }; -} +#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace coord
+{
+constexpr chunk_pos to_chunk(const voxel_pos& vpos);
+} // namespace coord
+
+namespace coord
+{
+constexpr local_pos to_local(const voxel_pos& vpos);
+constexpr local_pos to_local(const glm::fvec3& fvec);
+constexpr local_pos to_local(std::size_t index);
+} // namespace coord
+
+namespace coord
+{
+constexpr voxel_pos to_voxel(const chunk_pos& cpos, const local_pos& lpos);
+constexpr voxel_pos to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec);
+} // namespace coord
+
+namespace coord
+{
+constexpr std::size_t to_index(const local_pos& lpos);
+} // namespace coord
+
+namespace coord
+{
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec);
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos);
+constexpr glm::fvec3 to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos, const glm::fvec3& fvec);
+} // namespace coord
+
+namespace coord
+{
+constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos);
+constexpr glm::fvec3 to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos);
+} // namespace coord
+
+inline constexpr chunk_pos coord::to_chunk(const voxel_pos& vpos)
+{
+ return chunk_pos {
+ static_cast<chunk_pos::value_type>(vpos.x >> CHUNK_BITSHIFT),
+ static_cast<chunk_pos::value_type>(vpos.y >> CHUNK_BITSHIFT),
+ static_cast<chunk_pos::value_type>(vpos.z >> CHUNK_BITSHIFT),
+ };
+}
+
+inline constexpr local_pos coord::to_local(const voxel_pos& vpos)
+{
+ return local_pos {
+ static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.x, CHUNK_SIZE)),
+ static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.y, CHUNK_SIZE)),
+ static_cast<local_pos::value_type>(math::mod_signed<voxel_pos::value_type>(vpos.z, CHUNK_SIZE)),
+ };
+}
+
+inline constexpr local_pos coord::to_local(const glm::fvec3& fvec)
+{
+ return local_pos {
+ static_cast<local_pos::value_type>(fvec.x),
+ static_cast<local_pos::value_type>(fvec.y),
+ static_cast<local_pos::value_type>(fvec.z),
+ };
+}
+
+inline constexpr local_pos coord::to_local(std::size_t index)
+{
+ return local_pos {
+ static_cast<local_pos::value_type>((index % CHUNK_SIZE)),
+ static_cast<local_pos::value_type>((index / CHUNK_SIZE) / CHUNK_SIZE),
+ static_cast<local_pos::value_type>((index / CHUNK_SIZE) % CHUNK_SIZE),
+ };
+}
+
+inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const local_pos& lpos)
+{
+ return voxel_pos {
+ lpos.x + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT),
+ lpos.y + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT),
+ lpos.z + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT),
+ };
+}
+
+inline constexpr voxel_pos coord::to_voxel(const chunk_pos& cpos, const glm::fvec3& fvec)
+{
+ return voxel_pos {
+ static_cast<voxel_pos::value_type>(fvec.x) + (static_cast<voxel_pos::value_type>(cpos.x) << CHUNK_BITSHIFT),
+ static_cast<voxel_pos::value_type>(fvec.y) + (static_cast<voxel_pos::value_type>(cpos.y) << CHUNK_BITSHIFT),
+ static_cast<voxel_pos::value_type>(fvec.z) + (static_cast<voxel_pos::value_type>(cpos.z) << CHUNK_BITSHIFT),
+ };
+}
+
+inline constexpr std::size_t coord::to_index(const local_pos& lpos)
+{
+ return static_cast<std::size_t>((lpos.y * CHUNK_SIZE + lpos.z) * CHUNK_SIZE + lpos.x);
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const chunk_pos& cpos, const glm::fvec3& fvec)
+{
+ return glm::fvec3 {
+ static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + fvec.x,
+ static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + fvec.y,
+ static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + fvec.z,
+ };
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos)
+{
+ return glm::fvec3 {
+ static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) - pivot_fvec.x,
+ static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) - pivot_fvec.y,
+ static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) - pivot_fvec.z,
+ };
+}
+
+inline constexpr glm::fvec3 coord::to_relative(const chunk_pos& pivot_cpos, const glm::fvec3& pivot_fvec, const chunk_pos& cpos,
+ const glm::fvec3& fvec)
+{
+ return glm::fvec3 {
+ static_cast<float>((cpos.x - pivot_cpos.x) << CHUNK_BITSHIFT) + (fvec.x - pivot_fvec.x),
+ static_cast<float>((cpos.y - pivot_cpos.y) << CHUNK_BITSHIFT) + (fvec.y - pivot_fvec.y),
+ static_cast<float>((cpos.z - pivot_cpos.z) << CHUNK_BITSHIFT) + (fvec.z - pivot_fvec.z),
+ };
+}
+
+inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos)
+{
+ return glm::fvec3 {
+ static_cast<float>(cpos.x << CHUNK_BITSHIFT),
+ static_cast<float>(cpos.y << CHUNK_BITSHIFT),
+ static_cast<float>(cpos.z << CHUNK_BITSHIFT),
+ };
+}
+
+inline constexpr glm::fvec3 coord::to_fvec3(const chunk_pos& cpos, const glm::fvec3& fpos)
+{
+ return glm::fvec3 {
+ fpos.x + static_cast<float>(cpos.x << CHUNK_BITSHIFT),
+ fpos.y + static_cast<float>(cpos.y << CHUNK_BITSHIFT),
+ fpos.z + static_cast<float>(cpos.z << CHUNK_BITSHIFT),
+ };
+}
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