Merge pull request #15 from untodesu/metavoxels

Metavoxels

1 files changed, 149 insertions, 0 deletions

diff --git a/game/shared/world/voxel.cc b/game/shared/world/voxel.cc
new file mode 100644
index 0000000..21fe62c
--- /dev/null
+++ b/game/shared/world/voxel.cc
@@ -0,0 +1,149 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/dimension.hh"
+
+world::Voxel::Voxel(const Voxel& source, voxel_id id) noexcept : Voxel(source)
+{
+    m_id = id;
+}
+
+void world::Voxel::on_place(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_place) {
+        m_on_place(dimension, vpos);
+    }
+}
+
+void world::Voxel::on_remove(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_remove) {
+        m_on_remove(dimension, vpos);
+    }
+}
+
+void world::Voxel::on_tick(Dimension* dimension, const voxel_pos& vpos) const
+{
+    if(m_on_tick) {
+        m_on_tick(dimension, vpos);
+    }
+}
+
+std::size_t world::Voxel::get_random_texture_index(VoxelFace face, const voxel_pos& vpos) const
+{
+    const auto& textures = get_face_textures(face);
+
+    assert(textures.size());
+
+    std::uint64_t hash = 0U;
+    hash = math::crc64(&vpos.x, sizeof(vpos.x), hash);
+    hash = math::crc64(&vpos.y, sizeof(vpos.y), hash);
+    hash = math::crc64(&vpos.z, sizeof(vpos.z), hash);
+
+    return static_cast<std::size_t>(hash % textures.size());
+}
+
+void world::Voxel::set_face_cache(VoxelFace face, std::size_t offset, std::size_t plane)
+{
+    assert(face < m_cached_face_offsets.size());
+    assert(face < m_cached_face_planes.size());
+
+    m_cached_face_offsets[face] = offset;
+    m_cached_face_planes[face] = plane;
+}
+
+std::uint64_t world::Voxel::get_checksum(std::uint64_t combine) const
+{
+    combine = math::crc64(m_name.data(), m_name.size(), combine);
+    combine += static_cast<std::uint64_t>(m_shape);
+    combine += static_cast<std::uint64_t>(m_render_mode);
+    return combine;
+}
+
+world::VoxelBuilder::VoxelBuilder(std::string_view name)
+{
+    set_name(name);
+}
+
+void world::VoxelBuilder::set_on_place(VoxelOnPlaceFunc func) noexcept
+{
+    m_on_place = std::move(func);
+}
+
+void world::VoxelBuilder::set_on_remove(VoxelOnRemoveFunc func) noexcept
+{
+    m_on_remove = std::move(func);
+}
+
+void world::VoxelBuilder::set_on_tick(VoxelOnTickFunc func) noexcept
+{
+    m_on_tick = std::move(func);
+}
+
+void world::VoxelBuilder::set_name(std::string_view name) noexcept
+{
+    assert(name.size());
+
+    m_name = name;
+}
+
+void world::VoxelBuilder::set_render_mode(VoxelRender mode) noexcept
+{
+    m_render_mode = mode;
+}
+
+void world::VoxelBuilder::set_shape(VoxelShape shape) noexcept
+{
+    m_shape = shape;
+}
+
+void world::VoxelBuilder::set_animated(bool animated) noexcept
+{
+    m_animated = animated;
+}
+
+void world::VoxelBuilder::set_touch_type(VoxelTouch type) noexcept
+{
+    m_touch_type = type;
+}
+
+void world::VoxelBuilder::set_touch_values(const glm::fvec3& values) noexcept
+{
+    m_touch_values = values;
+}
+
+void world::VoxelBuilder::set_surface_material(VoxelMaterial material) noexcept
+{
+    m_surface_material = material;
+}
+
+void world::VoxelBuilder::set_collision(const math::AABBf& box) noexcept
+{
+    m_collision = box;
+}
+
+void world::VoxelBuilder::add_default_texture(std::string_view path)
+{
+    assert(path.size());
+
+    m_default_textures.emplace_back(path);
+}
+
+void world::VoxelBuilder::add_face_texture(VoxelFace face, std::string_view path)
+{
+    assert(face < m_face_textures.size());
+    assert(path.size());
+
+    m_face_textures[face].emplace_back(path);
+}
+
+std::unique_ptr<world::Voxel> world::VoxelBuilder::build(voxel_id id) const
+{
+    assert(m_name.size());
+    assert(id);
+
+    return std::make_unique<Voxel>(*this, id);
+}