Shuffle stuff around

- Use the new and improved hierarchy I figured out when making Prospero chat
- Re-add NSIS scripts, again from Prospero
- Update most build and utility scripts with their most recent versions

20 files changed, 1504 insertions, 0 deletions

diff --git a/src/game/shared/world/CMakeLists.txt b/src/game/shared/world/CMakeLists.txt
new file mode 100644
index 0000000..db3f370
--- /dev/null
+++ b/src/game/shared/world/CMakeLists.txt
@@ -0,0 +1,20 @@
+target_sources(shared PRIVATE
+    "${CMAKE_CURRENT_LIST_DIR}/chunk_aabb.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/chunk.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/dimension.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/dimension.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/feature.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/feature.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/item_registry.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/item_registry.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/item.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/item.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/ray_dda.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/ray_dda.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_registry.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_registry.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_storage.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel_storage.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/voxel.hh")
diff --git a/src/game/shared/world/chunk.cc b/src/game/shared/world/chunk.cc
new file mode 100644
index 0000000..e2d60cb
--- /dev/null
+++ b/src/game/shared/world/chunk.cc
@@ -0,0 +1,72 @@
+#include "shared/pch.hh"
+
+#include "shared/world/chunk.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+
+world::Chunk::Chunk(entt::entity entity, Dimension* dimension)
+{
+    m_entity = entity;
+    m_dimension = dimension;
+    m_voxels.fill(NULL_VOXEL_ID);
+    m_biome = BIOME_VOID;
+}
+
+const world::Voxel* world::Chunk::get_voxel(const local_pos& lpos) const
+{
+    return get_voxel(coord::to_index(lpos));
+}
+
+const world::Voxel* world::Chunk::get_voxel(const std::size_t index) const
+{
+    if(index >= CHUNK_VOLUME) {
+        return nullptr;
+    }
+
+    return voxel_registry::find(m_voxels[index]);
+}
+
+void world::Chunk::set_voxel(const Voxel* voxel, const local_pos& lpos)
+{
+    set_voxel(voxel, coord::to_index(lpos));
+}
+
+void world::Chunk::set_voxel(const Voxel* voxel, const std::size_t index)
+{
+    if(index < CHUNK_VOLUME) {
+        m_voxels[index] = voxel ? voxel->get_id() : NULL_VOXEL_ID;
+        return;
+    }
+}
+
+const world::VoxelStorage& world::Chunk::get_voxels(void) const
+{
+    return m_voxels;
+}
+
+void world::Chunk::set_voxels(const VoxelStorage& voxels)
+{
+    m_voxels = voxels;
+}
+
+unsigned int world::Chunk::get_biome(void) const
+{
+    return m_biome;
+}
+
+void world::Chunk::set_biome(unsigned int biome)
+{
+    m_biome = biome;
+}
+
+entt::entity world::Chunk::get_entity(void) const
+{
+    return m_entity;
+}
+
+world::Dimension* world::Chunk::get_dimension(void) const
+{
+    return m_dimension;
+}
diff --git a/src/game/shared/world/chunk.hh b/src/game/shared/world/chunk.hh
new file mode 100644
index 0000000..7518127
--- /dev/null
+++ b/src/game/shared/world/chunk.hh
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "shared/world/voxel_storage.hh"
+
+#include "shared/types.hh"
+
+constexpr static unsigned int BIOME_VOID = 0U;
+
+namespace world
+{
+class Dimension;
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class Chunk final {
+public:
+    explicit Chunk(entt::entity entity, Dimension* dimension);
+    virtual ~Chunk(void) = default;
+
+    const Voxel* get_voxel(const local_pos& lpos) const;
+    const Voxel* get_voxel(const std::size_t index) const;
+
+    void set_voxel(const Voxel* voxel, const local_pos& lpos);
+    void set_voxel(const Voxel* voxel, const std::size_t index);
+
+    const VoxelStorage& get_voxels(void) const;
+    void set_voxels(const VoxelStorage& voxels);
+
+    unsigned int get_biome(void) const;
+    void set_biome(unsigned int biome);
+
+    entt::entity get_entity(void) const;
+    Dimension* get_dimension(void) const;
+
+private:
+    entt::entity m_entity;
+    Dimension* m_dimension;
+    VoxelStorage m_voxels;
+    unsigned int m_biome;
+};
+} // namespace world
diff --git a/src/game/shared/world/chunk_aabb.hh b/src/game/shared/world/chunk_aabb.hh
new file mode 100644
index 0000000..f07d3e1
--- /dev/null
+++ b/src/game/shared/world/chunk_aabb.hh
@@ -0,0 +1,10 @@
+#pragma once
+
+#include "core/math/aabb.hh"
+
+#include "shared/types.hh"
+
+namespace world
+{
+using ChunkAABB = math::AABB<chunk_pos::value_type>;
+} // namespace world
diff --git a/src/game/shared/world/dimension.cc b/src/game/shared/world/dimension.cc
new file mode 100644
index 0000000..0088753
--- /dev/null
+++ b/src/game/shared/world/dimension.cc
@@ -0,0 +1,187 @@
+#include "shared/pch.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/voxel_registry.hh"
+
+#include "shared/coord.hh"
+#include "shared/globals.hh"
+
+world::Dimension::Dimension(std::string_view name, float gravity)
+{
+    m_name = name;
+    m_gravity = gravity;
+}
+
+world::Dimension::~Dimension(void)
+{
+    for(const auto it : m_chunkmap)
+        delete it.second;
+    entities.clear();
+    chunks.clear();
+}
+
+std::string_view world::Dimension::get_name(void) const
+{
+    return m_name;
+}
+
+float world::Dimension::get_gravity(void) const
+{
+    return m_gravity;
+}
+
+world::Chunk* world::Dimension::create_chunk(const chunk_pos& cpos)
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        // Chunk already exists
+        return it->second;
+    }
+
+    auto entity = chunks.create();
+    auto chunk = new Chunk(entity, this);
+
+    auto& component = chunks.emplace<ChunkComponent>(entity);
+    component.chunk = chunk;
+    component.cpos = cpos;
+
+    ChunkCreateEvent event;
+    event.dimension = this;
+    event.chunk = chunk;
+    event.cpos = cpos;
+
+    globals::dispatcher.trigger(event);
+
+    return m_chunkmap.insert_or_assign(cpos, std::move(chunk)).first->second;
+}
+
+world::Chunk* world::Dimension::find_chunk(entt::entity entity) const
+{
+    if(chunks.valid(entity)) {
+        return chunks.get<ChunkComponent>(entity).chunk;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+world::Chunk* world::Dimension::find_chunk(const chunk_pos& cpos) const
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        return it->second;
+    }
+    else {
+        return nullptr;
+    }
+}
+
+void world::Dimension::remove_chunk(entt::entity entity)
+{
+    if(chunks.valid(entity)) {
+        auto& component = chunks.get<ChunkComponent>(entity);
+        m_chunkmap.erase(component.cpos);
+        chunks.destroy(entity);
+    }
+}
+
+void world::Dimension::remove_chunk(const chunk_pos& cpos)
+{
+    auto it = m_chunkmap.find(cpos);
+
+    if(it != m_chunkmap.cend()) {
+        chunks.destroy(it->second->get_entity());
+        m_chunkmap.erase(it);
+    }
+}
+
+void world::Dimension::remove_chunk(Chunk* chunk)
+{
+    if(chunk) {
+        const auto& component = chunks.get<ChunkComponent>(chunk->get_entity());
+        m_chunkmap.erase(component.cpos);
+        chunks.destroy(chunk->get_entity());
+    }
+}
+
+const world::Voxel* world::Dimension::get_voxel(const voxel_pos& vpos) const
+{
+    auto cpos = coord::to_chunk(vpos);
+    auto lpos = coord::to_local(vpos);
+
+    if(auto chunk = find_chunk(cpos)) {
+        return chunk->get_voxel(lpos);
+    }
+
+    return nullptr;
+}
+
+const world::Voxel* world::Dimension::get_voxel(const chunk_pos& cpos, const local_pos& lpos) const
+{
+    // This allows accessing get_voxel with negative
+    // local coordinates that usually would result in an
+    // out-of-range values; this is useful for per-voxel update logic
+    return get_voxel(coord::to_voxel(cpos, lpos));
+}
+
+bool world::Dimension::set_voxel(const Voxel* voxel, const voxel_pos& vpos)
+{
+    auto cpos = coord::to_chunk(vpos);
+    auto lpos = coord::to_local(vpos);
+
+    if(auto chunk = find_chunk(cpos)) {
+        if(auto old_voxel = chunk->get_voxel(lpos)) {
+            if(old_voxel != voxel) {
+                // Notify the old voxel that it is
+                // being replaced with a different voxel
+                old_voxel->on_remove(this, vpos);
+            }
+        }
+
+        chunk->set_voxel(voxel, lpos);
+
+        if(voxel) {
+            // If we're not placing air, notify the
+            // new voxel that it has been placed
+            voxel->on_place(this, vpos);
+        }
+
+        VoxelSetEvent event;
+        event.dimension = this;
+        event.voxel = voxel;
+        event.cpos = cpos;
+        event.lpos = lpos;
+        event.chunk = chunk;
+
+        globals::dispatcher.trigger(event);
+
+        return true;
+    }
+
+    return false;
+}
+
+bool world::Dimension::set_voxel(const Voxel* voxel, const chunk_pos& cpos, const local_pos& lpos)
+{
+    // This allows accessing set_voxel with negative
+    // local coordinates that usually would result in an
+    // out-of-range values; this is useful for per-voxel update logic
+    return set_voxel(voxel, coord::to_voxel(cpos, lpos));
+}
+
+void world::Dimension::init(io::ConfigMap& config)
+{
+}
+
+void world::Dimension::init_late(std::uint64_t global_seed)
+{
+}
+
+bool world::Dimension::generate(const chunk_pos& cpos, VoxelStorage& voxels)
+{
+    return false;
+}
diff --git a/src/game/shared/world/dimension.hh b/src/game/shared/world/dimension.hh
new file mode 100644
index 0000000..6549bf6
--- /dev/null
+++ b/src/game/shared/world/dimension.hh
@@ -0,0 +1,101 @@
+#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace io
+{
+class ConfigMap;
+} // namespace io
+
+namespace world
+{
+class Chunk;
+class Voxel;
+class VoxelStorage;
+} // namespace world
+
+namespace world
+{
+using dimension_entropy_map = std::array<std::uint64_t, CHUNK_AREA>;
+using dimension_height_map = std::array<voxel_pos::value_type, CHUNK_AREA>;
+} // namespace world
+
+namespace world
+{
+class Dimension {
+public:
+    explicit Dimension(std::string_view name, float gravity);
+    virtual ~Dimension(void);
+
+    std::string_view get_name(void) const;
+    float get_gravity(void) const;
+
+public:
+    Chunk* create_chunk(const chunk_pos& cpos);
+    Chunk* find_chunk(entt::entity entity) const;
+    Chunk* find_chunk(const chunk_pos& cpos) const;
+
+    void remove_chunk(entt::entity entity);
+    void remove_chunk(const chunk_pos& cpos);
+    void remove_chunk(Chunk* chunk);
+
+public:
+    const Voxel* get_voxel(const voxel_pos& vpos) const;
+    const Voxel* get_voxel(const chunk_pos& cpos, const local_pos& lpos) const;
+
+    bool set_voxel(const Voxel* voxel, const voxel_pos& vpos);
+    bool set_voxel(const Voxel* voxel, const chunk_pos& cpos, const local_pos& lpos);
+
+public:
+    virtual void init(io::ConfigMap& config);
+    virtual void init_late(std::uint64_t global_seed);
+    virtual bool generate(const chunk_pos& cpos, VoxelStorage& voxels);
+
+public:
+    entt::registry chunks;
+    entt::registry entities;
+
+private:
+    std::string m_name;
+    emhash8::HashMap<chunk_pos, Chunk*> m_chunkmap;
+    float m_gravity;
+};
+} // namespace world
+
+namespace world
+{
+struct ChunkComponent final {
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+} // namespace world
+
+namespace world
+{
+struct ChunkCreateEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct ChunkDestroyEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct ChunkUpdateEvent final {
+    Dimension* dimension;
+    chunk_pos cpos;
+    Chunk* chunk;
+};
+
+struct VoxelSetEvent final {
+    Dimension* dimension;
+    const Voxel* voxel;
+    chunk_pos cpos;
+    local_pos lpos;
+    Chunk* chunk;
+};
+} // namespace world
diff --git a/src/game/shared/world/feature.cc b/src/game/shared/world/feature.cc
new file mode 100644
index 0000000..2468473
--- /dev/null
+++ b/src/game/shared/world/feature.cc
@@ -0,0 +1,75 @@
+#include "shared/pch.hh"
+
+#include "shared/world/feature.hh"
+
+#include "shared/world/chunk.hh"
+#include "shared/world/dimension.hh"
+#include "shared/world/voxel.hh"
+
+#include "shared/coord.hh"
+
+void world::Feature::place(const voxel_pos& vpos, Dimension* dimension) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(auto chunk = dimension->create_chunk(it_cpos)) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(chunk->get_voxel(it_index) && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            chunk->set_voxel(voxel, it_index);
+        }
+    }
+}
+
+void world::Feature::place(const voxel_pos& vpos, const chunk_pos& cpos, Chunk& chunk) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(it_cpos == cpos) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(chunk.get_voxel(it_index) && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            chunk.set_voxel(voxel, it_index);
+        }
+    }
+}
+
+void world::Feature::place(const voxel_pos& vpos, const chunk_pos& cpos, VoxelStorage& voxels) const
+{
+    for(const auto [rpos, voxel, overwrite] : (*this)) {
+        auto it_vpos = vpos + rpos;
+        auto it_cpos = coord::to_chunk(it_vpos);
+
+        if(it_cpos == cpos) {
+            auto it_lpos = coord::to_local(it_vpos);
+            auto it_index = coord::to_index(it_lpos);
+
+            if(voxels[it_index] && !overwrite) {
+                // There is something in the way
+                // and the called intentionally requested
+                // we do not force feature to overwrite voxels
+                continue;
+            }
+
+            voxels[it_index] = voxel ? voxel->get_id() : NULL_VOXEL_ID;
+        }
+    }
+}
diff --git a/src/game/shared/world/feature.hh b/src/game/shared/world/feature.hh
new file mode 100644
index 0000000..0d28b20
--- /dev/null
+++ b/src/game/shared/world/feature.hh
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Chunk;
+class Dimension;
+class Voxel;
+class VoxelStorage;
+} // namespace world
+
+namespace world
+{
+class Feature final : public std::vector<std::tuple<voxel_pos, const Voxel*, bool>> {
+public:
+    Feature(void) = default;
+    virtual ~Feature(void) = default;
+
+public:
+    void place(const voxel_pos& vpos, Dimension* dimension) const;
+    void place(const voxel_pos& vpos, const chunk_pos& cpos, Chunk& chunk) const;
+    void place(const voxel_pos& vpos, const chunk_pos& cpos, VoxelStorage& voxels) const;
+};
+} // namespace world
diff --git a/src/game/shared/world/item.cc b/src/game/shared/world/item.cc
new file mode 100644
index 0000000..5e60609
--- /dev/null
+++ b/src/game/shared/world/item.cc
@@ -0,0 +1,55 @@
+#include "shared/pch.hh"
+
+#include "shared/world/item.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/voxel.hh"
+
+world::Item::Item(const Item& source, item_id id) noexcept : Item(source)
+{
+    m_id = id;
+}
+
+void world::Item::set_cached_texture(resource_ptr<TextureGUI> texture) const noexcept
+{
+    m_cached_texture = std::move(texture);
+}
+
+std::uint64_t world::Item::get_checksum(std::uint64_t combine) const
+{
+    combine = math::crc64(m_name.data(), m_name.size(), combine);
+    combine = math::crc64(m_texture.data(), m_texture.size(), combine);
+
+    std::uint32_t id = m_place_voxel ? m_place_voxel->get_id() : NULL_VOXEL_ID;
+    combine = math::crc64(&id, sizeof(id), combine);
+
+    return combine;
+}
+
+world::ItemBuilder::ItemBuilder(std::string_view name)
+{
+    set_name(name);
+}
+
+void world::ItemBuilder::set_name(std::string_view name)
+{
+    assert(name.size());
+
+    m_name = name;
+}
+
+void world::ItemBuilder::set_texture(std::string_view texture)
+{
+    m_texture = texture;
+}
+
+void world::ItemBuilder::set_place_voxel(const Voxel* place_voxel)
+{
+    m_place_voxel = place_voxel;
+}
+
+std::unique_ptr<world::Item> world::ItemBuilder::build(item_id id) const
+{
+    return std::make_unique<Item>(*this, id);
+}
diff --git a/src/game/shared/world/item.hh b/src/game/shared/world/item.hh
new file mode 100644
index 0000000..ffa7f5c
--- /dev/null
+++ b/src/game/shared/world/item.hh
@@ -0,0 +1,84 @@
+#pragma once
+
+#include "core/resource/resource.hh"
+
+#include "shared/types.hh"
+
+// This resource is only defined client-side and
+// resource_ptr<TextureGUI> should remain set to null
+// anywhere else in the shared and server code
+struct TextureGUI;
+
+namespace world
+{
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class Item {
+public:
+    Item(void) = default;
+    explicit Item(const Item& source, item_id id) noexcept;
+
+    constexpr std::string_view get_name(void) const noexcept;
+    constexpr item_id get_id(void) const noexcept;
+
+    constexpr std::string_view get_texture(void) const noexcept;
+    constexpr const Voxel* get_place_voxel(void) const noexcept;
+
+    constexpr resource_ptr<TextureGUI>& get_cached_texture(void) const noexcept;
+    void set_cached_texture(resource_ptr<TextureGUI> texture) const noexcept;
+
+    std::uint64_t get_checksum(std::uint64_t combine = 0U) const;
+
+protected:
+    std::string m_name;
+    item_id m_id { NULL_ITEM_ID };
+
+    std::string m_texture;
+    const Voxel* m_place_voxel { nullptr };
+
+    mutable resource_ptr<TextureGUI> m_cached_texture; // Client-side only
+};
+} // namespace world
+
+namespace world
+{
+class ItemBuilder final : public Item {
+public:
+    explicit ItemBuilder(std::string_view name);
+
+    void set_name(std::string_view name);
+
+    void set_texture(std::string_view texture);
+    void set_place_voxel(const Voxel* place_voxel);
+
+    std::unique_ptr<Item> build(item_id id) const;
+};
+} // namespace world
+
+constexpr std::string_view world::Item::get_name(void) const noexcept
+{
+    return m_name;
+}
+
+constexpr item_id world::Item::get_id(void) const noexcept
+{
+    return m_id;
+}
+
+constexpr std::string_view world::Item::get_texture(void) const noexcept
+{
+    return m_texture;
+}
+
+constexpr const world::Voxel* world::Item::get_place_voxel(void) const noexcept
+{
+    return m_place_voxel;
+}
+
+constexpr resource_ptr<TextureGUI>& world::Item::get_cached_texture(void) const noexcept
+{
+    return m_cached_texture;
+}
diff --git a/src/game/shared/world/item_registry.cc b/src/game/shared/world/item_registry.cc
new file mode 100644
index 0000000..d89abe9
--- /dev/null
+++ b/src/game/shared/world/item_registry.cc
@@ -0,0 +1,68 @@
+#include "shared/pch.hh"
+
+#include "shared/world/item_registry.hh"
+
+#include "core/math/crc64.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+static std::uint64_t registry_checksum = 0U;
+std::unordered_map<std::string, item_id> world::item_registry::names = {};
+std::vector<std::unique_ptr<world::Item>> world::item_registry::items = {};
+
+static void recalculate_checksum(void)
+{
+    registry_checksum = 0U;
+
+    for(const auto& item : world::item_registry::items) {
+        registry_checksum = item->get_checksum(registry_checksum);
+    }
+}
+
+world::Item* world::item_registry::register_item(const ItemBuilder& builder)
+{
+    assert(builder.get_name().size());
+    assert(nullptr == find(builder.get_name()));
+
+    const auto id = static_cast<item_id>(1 + items.size());
+
+    std::unique_ptr<Item> item(builder.build(id));
+    names.emplace(std::string(builder.get_name()), id);
+    items.push_back(std::move(item));
+
+    recalculate_checksum();
+
+    return items.back().get();
+}
+
+world::Item* world::item_registry::find(std::string_view name)
+{
+    const auto it = names.find(std::string(name));
+
+    if(it == names.end()) {
+        return nullptr;
+    }
+
+    return items[it->second - 1].get();
+}
+
+world::Item* world::item_registry::find(const item_id item)
+{
+    if(item == NULL_ITEM_ID || item > items.size()) {
+        return nullptr;
+    }
+
+    return items[item - 1].get();
+}
+
+void world::item_registry::purge(void)
+{
+    registry_checksum = 0U;
+    items.clear();
+    names.clear();
+}
+
+std::uint64_t world::item_registry::get_checksum(void)
+{
+    return registry_checksum;
+}
diff --git a/src/game/shared/world/item_registry.hh b/src/game/shared/world/item_registry.hh
new file mode 100644
index 0000000..a841a2d
--- /dev/null
+++ b/src/game/shared/world/item_registry.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "shared/world/item.hh"
+
+namespace world::item_registry
+{
+extern std::unordered_map<std::string, item_id> names;
+extern std::vector<std::unique_ptr<Item>> items;
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+Item* register_item(const ItemBuilder& builder);
+Item* find(std::string_view name);
+Item* find(const item_id item);
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+void purge(void);
+} // namespace world::item_registry
+
+namespace world::item_registry
+{
+std::uint64_t get_checksum(void);
+} // namespace world::item_registry
diff --git a/src/game/shared/world/ray_dda.cc b/src/game/shared/world/ray_dda.cc
new file mode 100644
index 0000000..d6383b9
--- /dev/null
+++ b/src/game/shared/world/ray_dda.cc
@@ -0,0 +1,107 @@
+#include "shared/pch.hh"
+
+#include "shared/world/ray_dda.hh"
+
+#include "shared/world/dimension.hh"
+
+#include "shared/coord.hh"
+
+world::RayDDA::RayDDA(const world::Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(dimension, start_chunk, start_fpos, direction);
+}
+
+world::RayDDA::RayDDA(const world::Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(dimension, start_chunk, start_fpos, direction);
+}
+
+void world::RayDDA::reset(const world::Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    this->dimension = dimension;
+    this->start_chunk = start_chunk;
+    this->start_fpos = start_fpos;
+    this->direction = direction;
+
+    this->delta_dist.x = direction.x ? glm::abs(1.0f / direction.x) : std::numeric_limits<float>::max();
+    this->delta_dist.y = direction.y ? glm::abs(1.0f / direction.y) : std::numeric_limits<float>::max();
+    this->delta_dist.z = direction.z ? glm::abs(1.0f / direction.z) : std::numeric_limits<float>::max();
+
+    this->distance = 0.0f;
+    this->vpos = coord::to_voxel(start_chunk, start_fpos);
+    this->vnormal = voxel_pos(0, 0, 0);
+
+    // Need this for initial direction calculations
+    auto lpos = coord::to_local(start_fpos);
+
+    if(direction.x < 0.0f) {
+        this->side_dist.x = this->delta_dist.x * (start_fpos.x - lpos.x);
+        this->vstep.x = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.x = this->delta_dist.x * (lpos.x + 1.0f - start_fpos.x);
+        this->vstep.x = voxel_pos::value_type(+1);
+    }
+
+    if(direction.y < 0.0f) {
+        this->side_dist.y = this->delta_dist.y * (start_fpos.y - lpos.y);
+        this->vstep.y = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.y = this->delta_dist.y * (lpos.y + 1.0f - start_fpos.y);
+        this->vstep.y = voxel_pos::value_type(+1);
+    }
+
+    if(direction.z < 0.0f) {
+        this->side_dist.z = this->delta_dist.z * (start_fpos.z - lpos.z);
+        this->vstep.z = voxel_pos::value_type(-1);
+    }
+    else {
+        this->side_dist.z = this->delta_dist.z * (lpos.z + 1.0f - start_fpos.z);
+        this->vstep.z = voxel_pos::value_type(+1);
+    }
+}
+
+void world::RayDDA::reset(const world::Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos,
+    const glm::fvec3& direction)
+{
+    reset(&dimension, start_chunk, start_fpos, direction);
+}
+
+const world::Voxel* world::RayDDA::step(void)
+{
+    if(side_dist.x < side_dist.z) {
+        if(side_dist.x < side_dist.y) {
+            vnormal = voxel_pos(-vstep.x, 0, 0);
+            distance = side_dist.x;
+            side_dist.x += delta_dist.x;
+            vpos.x += vstep.x;
+        }
+        else {
+            vnormal = voxel_pos(0, -vstep.y, 0);
+            distance = side_dist.y;
+            side_dist.y += delta_dist.y;
+            vpos.y += vstep.y;
+        }
+    }
+    else {
+        if(side_dist.z < side_dist.y) {
+            vnormal = voxel_pos(0, 0, -vstep.z);
+            distance = side_dist.z;
+            side_dist.z += delta_dist.z;
+            vpos.z += vstep.z;
+        }
+        else {
+            vnormal = voxel_pos(0, -vstep.y, 0);
+            distance = side_dist.y;
+            side_dist.y += delta_dist.y;
+            vpos.y += vstep.y;
+        }
+    }
+
+    // This is slower than I want it to be
+    return dimension->get_voxel(vpos);
+}
diff --git a/src/game/shared/world/ray_dda.hh b/src/game/shared/world/ray_dda.hh
new file mode 100644
index 0000000..0f548ba
--- /dev/null
+++ b/src/game/shared/world/ray_dda.hh
@@ -0,0 +1,38 @@
+#pragma once
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+class Voxel;
+} // namespace world
+
+namespace world
+{
+class RayDDA final {
+public:
+    RayDDA(void) = default;
+    explicit RayDDA(const Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+    explicit RayDDA(const Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+
+    void reset(const Dimension* dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+    void reset(const Dimension& dimension, const chunk_pos& start_chunk, const glm::fvec3& start_fpos, const glm::fvec3& direction);
+
+    const Voxel* step(void);
+
+public:
+    const Dimension* dimension;
+    chunk_pos start_chunk;
+    glm::fvec3 start_fpos;
+    glm::fvec3 direction;
+
+    glm::fvec3 delta_dist;
+    glm::fvec3 side_dist;
+    voxel_pos vstep;
+
+    double distance;
+    voxel_pos vnormal;
+    voxel_pos vpos;
+};
+} // namespace world
diff --git a/src/game/shared/world/voxel.cc b/src/game/shared/world/voxel.cc
new file mode 100644
index 0000000..21fe62c
--- /dev/null
+++ b/src/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);
+}
diff --git a/src/game/shared/world/voxel.hh b/src/game/shared/world/voxel.hh
new file mode 100644
index 0000000..6013962
--- /dev/null
+++ b/src/game/shared/world/voxel.hh
@@ -0,0 +1,286 @@
+#pragma once
+
+#include "core/math/aabb.hh"
+
+#include "shared/types.hh"
+
+namespace world
+{
+class Dimension;
+} // namespace world
+
+namespace world
+{
+enum VoxelRender : unsigned int {
+    VRENDER_NONE = 0U, ///< The voxel is not rendered at all
+    VRENDER_OPAQUE,    ///< The voxel is fully opaque
+    VRENDER_BLEND,     ///< The voxel is blended (e.g. water, glass)
+};
+
+enum VoxelShape : unsigned int {
+    VSHAPE_CUBE = 0U, ///< Full cube shape
+    VSHAPE_CROSS,     ///< TODO: Cross shape
+    VSHAPE_MODEL,     ///< TODO: Custom model shape
+};
+
+enum VoxelFace : unsigned int {
+    VFACE_NORTH = 0U, ///< Positive Z face
+    VFACE_SOUTH,      ///< Negative Z face
+    VFACE_EAST,       ///< Positive X face
+    VFACE_WEST,       ///< Negative X face
+    VFACE_TOP,        ///< Positive Y face
+    VFACE_BOTTOM,     ///< Negative Y face
+    VFACE_CROSS_NWSE, ///< Diagonal cross face northwest-southeast
+    VFACE_CROSS_NESW, ///< Diagonal cross face northeast-southwest
+    VFACE_COUNT
+};
+
+enum VoxelTouch : unsigned int {
+    VTOUCH_NONE = 0xFFFFU,
+    VTOUCH_SOLID = 0U, ///< The entity is stopped in its tracks
+    VTOUCH_BOUNCE,     ///< The entity bounces back with some energy loss
+    VTOUCH_SINK,       ///< The entity phases/sinks through the voxel
+};
+
+enum VoxelMaterial : unsigned int {
+    VMAT_UNKNOWN = 0xFFFFU,
+    VMAT_DEFAULT = 0U,
+    VMAT_STONE,
+    VMAT_DIRT,
+    VMAT_GLASS,
+    VMAT_GRASS,
+    VMAT_GRAVEL,
+    VMAT_METAL,
+    VMAT_SAND,
+    VMAT_WOOD,
+    VMAT_SLOSH,
+    VMAT_COUNT
+};
+
+enum VoxelVisBits : unsigned int {
+    VVIS_NORTH = 1U << VFACE_NORTH, ///< Positive Z
+    VVIS_SOUTH = 1U << VFACE_SOUTH, ///< Negative Z
+    VVIS_EAST = 1U << VFACE_EAST,   ///< Positive X
+    VVIS_WEST = 1U << VFACE_WEST,   ///< Negative X
+    VVIS_UP = 1U << VFACE_TOP,      ///< Positive Y
+    VVIS_DOWN = 1U << VFACE_BOTTOM, ///< Negative Y
+};
+} // namespace world
+
+namespace world
+{
+using VoxelOnPlaceFunc = std::function<void(Dimension*, const voxel_pos&)>;
+using VoxelOnRemoveFunc = std::function<void(Dimension*, const voxel_pos&)>;
+using VoxelOnTickFunc = std::function<void(Dimension*, const voxel_pos&)>;
+} // namespace world
+
+namespace world
+{
+class Voxel {
+public:
+    Voxel(void) = default;
+    explicit Voxel(const Voxel& source, voxel_id id) noexcept;
+
+    void on_place(Dimension* dimension, const voxel_pos& vpos) const;
+    void on_remove(Dimension* dimension, const voxel_pos& vpos) const;
+    void on_tick(Dimension* dimension, const voxel_pos& vpos) const;
+
+    constexpr std::string_view get_name(void) const noexcept;
+    constexpr voxel_id get_id(void) const noexcept;
+
+    constexpr VoxelRender get_render_mode(void) const noexcept;
+    constexpr VoxelShape get_shape(void) const noexcept;
+    constexpr bool is_animated(void) const noexcept;
+
+    constexpr VoxelTouch get_touch_type(void) const noexcept;
+    constexpr const glm::fvec3& get_touch_values(void) const noexcept;
+    constexpr VoxelMaterial get_surface_material(void) const noexcept;
+
+    constexpr const math::AABBf& get_collision(void) const noexcept;
+
+    constexpr const std::vector<std::string>& get_default_textures(void) const noexcept;
+    constexpr const std::vector<std::string>& get_face_textures(VoxelFace face) const noexcept;
+    constexpr std::size_t get_cached_face_offset(VoxelFace face) const noexcept;
+    constexpr std::size_t get_cached_face_plane(VoxelFace face) const noexcept;
+
+    template<VoxelRender RenderMode>
+    constexpr bool is_render_mode(void) const noexcept;
+    template<VoxelShape Shape>
+    constexpr bool is_shape(void) const noexcept;
+    template<VoxelTouch TouchType>
+    constexpr bool is_touch_type(void) const noexcept;
+    template<VoxelMaterial Material>
+    constexpr bool is_surface_material(void) const noexcept;
+
+    /// Non-model voxel shapes support texture variation based on the
+    /// voxel position on the world; this method handles the math behind this
+    /// @param face The face of the voxel to get the texture index for
+    /// @param vpos The absolute voxel position to get the texture index for
+    /// @return The index of the texture to use for the given face at the given position
+    /// @remarks On client-side: plane[get_cached_face_plane][get_cached_face_offset + thisFunctionResult]
+    std::size_t get_random_texture_index(VoxelFace face, const voxel_pos& vpos) const;
+
+    /// Assign cached plane index and plane offset for a given face
+    /// @param face The face to assign the cache for
+    /// @param offset The offset to assign to the face
+    /// @param plane The plane index to assign to the face
+    void set_face_cache(VoxelFace face, std::size_t offset, std::size_t plane);
+
+    /// Calculate a checksum for the voxel's properties
+    /// @param combine An optional initial checksum to combine with
+    /// @return The calculated checksum
+    std::uint64_t get_checksum(std::uint64_t combine = 0U) const;
+
+protected:
+    std::string m_name;
+    voxel_id m_id { NULL_VOXEL_ID };
+
+    VoxelRender m_render_mode { VRENDER_OPAQUE };
+    VoxelShape m_shape { VSHAPE_CUBE };
+    bool m_animated { false };
+
+    VoxelTouch m_touch_type { VTOUCH_SOLID };
+    glm::fvec3 m_touch_values { 0.0f };
+    VoxelMaterial m_surface_material { VMAT_DEFAULT };
+
+    math::AABBf m_collision { { 0.0f, 0.0f, 0.0f }, { 1.0f, 1.0f, 1.0f } };
+
+    std::vector<std::string> m_default_textures;
+    std::array<std::vector<std::string>, VFACE_COUNT> m_face_textures;
+    std::array<std::size_t, VFACE_COUNT> m_cached_face_offsets;
+    std::array<std::size_t, VFACE_COUNT> m_cached_face_planes;
+
+    VoxelOnPlaceFunc m_on_place;
+    VoxelOnRemoveFunc m_on_remove;
+    VoxelOnTickFunc m_on_tick;
+};
+} // namespace world
+
+namespace world
+{
+class VoxelBuilder final : public Voxel {
+public:
+    VoxelBuilder(void) = default;
+    explicit VoxelBuilder(std::string_view name);
+
+    void set_on_place(VoxelOnPlaceFunc func) noexcept;
+    void set_on_remove(VoxelOnRemoveFunc func) noexcept;
+    void set_on_tick(VoxelOnTickFunc func) noexcept;
+
+    void set_name(std::string_view name) noexcept;
+
+    void set_render_mode(VoxelRender mode) noexcept;
+    void set_shape(VoxelShape shape) noexcept;
+    void set_animated(bool animated) noexcept;
+
+    void set_touch_type(VoxelTouch type) noexcept;
+    void set_touch_values(const glm::fvec3& values) noexcept;
+    void set_surface_material(VoxelMaterial material) noexcept;
+
+    void set_collision(const math::AABBf& box) noexcept;
+
+    void add_default_texture(std::string_view path);
+    void add_face_texture(VoxelFace face, std::string_view path);
+
+    std::unique_ptr<Voxel> build(voxel_id id) const;
+};
+} // namespace world
+
+constexpr std::string_view world::Voxel::get_name(void) const noexcept
+{
+    return m_name;
+}
+
+constexpr voxel_id world::Voxel::get_id(void) const noexcept
+{
+    return m_id;
+}
+
+constexpr world::VoxelRender world::Voxel::get_render_mode(void) const noexcept
+{
+    return m_render_mode;
+}
+
+constexpr world::VoxelShape world::Voxel::get_shape(void) const noexcept
+{
+    return m_shape;
+}
+
+constexpr bool world::Voxel::is_animated(void) const noexcept
+{
+    return m_animated;
+}
+
+constexpr world::VoxelTouch world::Voxel::get_touch_type(void) const noexcept
+{
+    return m_touch_type;
+}
+
+constexpr const glm::fvec3& world::Voxel::get_touch_values(void) const noexcept
+{
+    return m_touch_values;
+}
+
+constexpr world::VoxelMaterial world::Voxel::get_surface_material(void) const noexcept
+{
+    return m_surface_material;
+}
+
+constexpr const math::AABBf& world::Voxel::get_collision(void) const noexcept
+{
+    return m_collision;
+}
+
+constexpr const std::vector<std::string>& world::Voxel::get_default_textures(void) const noexcept
+{
+    return m_default_textures;
+}
+
+constexpr const std::vector<std::string>& world::Voxel::get_face_textures(VoxelFace face) const noexcept
+{
+    assert(face <= m_face_textures.size());
+
+    if(m_face_textures[face].empty()) {
+        return m_default_textures;
+    }
+
+    return m_face_textures[face];
+}
+
+constexpr std::size_t world::Voxel::get_cached_face_offset(VoxelFace face) const noexcept
+{
+    assert(face <= m_cached_face_offsets.size());
+
+    return m_cached_face_offsets[face];
+}
+
+constexpr std::size_t world::Voxel::get_cached_face_plane(VoxelFace face) const noexcept
+{
+    assert(face <= m_cached_face_planes.size());
+
+    return m_cached_face_planes[face];
+}
+
+template<world::VoxelRender RenderMode>
+constexpr bool world::Voxel::is_render_mode(void) const noexcept
+{
+    return m_render_mode == RenderMode;
+}
+
+template<world::VoxelShape Shape>
+constexpr bool world::Voxel::is_shape(void) const noexcept
+{
+    return m_shape == Shape;
+}
+
+template<world::VoxelTouch TouchType>
+constexpr bool world::Voxel::is_touch_type(void) const noexcept
+{
+    return m_touch_type == TouchType;
+}
+
+template<world::VoxelMaterial Material>
+constexpr bool world::Voxel::is_surface_material(void) const noexcept
+{
+    return m_surface_material == Material;
+}
diff --git a/src/game/shared/world/voxel_registry.cc b/src/game/shared/world/voxel_registry.cc
new file mode 100644
index 0000000..fae83fa
--- /dev/null
+++ b/src/game/shared/world/voxel_registry.cc
@@ -0,0 +1,64 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel_registry.hh"
+
+static std::uint64_t registry_checksum = 0U;
+emhash8::HashMap<std::string, voxel_id> world::voxel_registry::names;
+std::vector<std::unique_ptr<world::Voxel>> world::voxel_registry::voxels;
+
+static void recalculate_checksum(void)
+{
+    registry_checksum = 0U;
+
+    for(const auto& voxel : world::voxel_registry::voxels) {
+        registry_checksum = voxel->get_checksum(registry_checksum);
+    }
+}
+
+world::Voxel* world::voxel_registry::register_voxel(const VoxelBuilder& builder)
+{
+    assert(builder.get_name().size());
+    assert(nullptr == find(builder.get_name()));
+
+    const auto id = static_cast<voxel_id>(1 + voxels.size());
+
+    std::unique_ptr<Voxel> voxel(builder.build(id));
+    names.emplace(std::string(builder.get_name()), id);
+    voxels.push_back(std::move(voxel));
+
+    recalculate_checksum();
+
+    return voxels.back().get();
+}
+
+world::Voxel* world::voxel_registry::find(std::string_view name)
+{
+    const auto it = names.find(std::string(name));
+
+    if(it == names.end()) {
+        return nullptr;
+    }
+
+    return voxels[it->second - 1].get();
+}
+
+world::Voxel* world::voxel_registry::find(voxel_id id)
+{
+    if(id == NULL_VOXEL_ID || id > voxels.size()) {
+        return nullptr;
+    }
+
+    return voxels[id - 1].get();
+}
+
+void world::voxel_registry::purge(void)
+{
+    registry_checksum = 0U;
+    voxels.clear();
+    names.clear();
+}
+
+std::uint64_t world::voxel_registry::get_checksum(void)
+{
+    return registry_checksum;
+}
diff --git a/src/game/shared/world/voxel_registry.hh b/src/game/shared/world/voxel_registry.hh
new file mode 100644
index 0000000..a1e0eee
--- /dev/null
+++ b/src/game/shared/world/voxel_registry.hh
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "shared/world/voxel.hh"
+
+namespace world::voxel_registry
+{
+extern emhash8::HashMap<std::string, voxel_id> names;
+extern std::vector<std::unique_ptr<Voxel>> voxels;
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+Voxel* register_voxel(const VoxelBuilder& builder);
+Voxel* find(std::string_view name);
+Voxel* find(voxel_id id);
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+void purge(void);
+} // namespace world::voxel_registry
+
+namespace world::voxel_registry
+{
+std::uint64_t get_checksum(void);
+} // namespace world::voxel_registry
diff --git a/src/game/shared/world/voxel_storage.cc b/src/game/shared/world/voxel_storage.cc
new file mode 100644
index 0000000..68e261c
--- /dev/null
+++ b/src/game/shared/world/voxel_storage.cc
@@ -0,0 +1,48 @@
+#include "shared/pch.hh"
+
+#include "shared/world/voxel_storage.hh"
+
+#include "core/io/buffer.hh"
+
+void world::VoxelStorage::serialize(io::WriteBuffer& buffer) const
+{
+    auto bound = mz_compressBound(sizeof(VoxelStorage));
+    auto zdata = std::vector<unsigned char>(bound);
+
+    VoxelStorage net_storage;
+
+    for(std::size_t i = 0; i < CHUNK_VOLUME; ++i) {
+        // Convert voxel indices into network byte order;
+        // We're going to compress them but we still want
+        // the order to be consistent across all the platforms
+        net_storage[i] = ENET_HOST_TO_NET_16(at(i));
+    }
+
+    mz_compress(zdata.data(), &bound, reinterpret_cast<unsigned char*>(net_storage.data()), sizeof(VoxelStorage));
+
+    buffer.write<std::uint64_t>(bound);
+
+    // Write all the compressed data into the buffer
+    for(std::size_t i = 0; i < bound; buffer.write<std::uint8_t>(zdata[i++])) {
+        // empty
+    }
+}
+
+void world::VoxelStorage::deserialize(io::ReadBuffer& buffer)
+{
+    auto size = static_cast<mz_ulong>(sizeof(VoxelStorage));
+    auto bound = static_cast<mz_ulong>(buffer.read<std::uint64_t>());
+    auto zdata = std::vector<unsigned char>(bound);
+
+    // Read all the compressed data from the buffer
+    for(std::size_t i = 0; i < bound; zdata[i++] = buffer.read<std::uint8_t>()) {
+        // empty
+    }
+
+    mz_uncompress(reinterpret_cast<unsigned char*>(data()), &size, zdata.data(), bound);
+
+    for(std::size_t i = 0; i < CHUNK_VOLUME; ++i) {
+        // Convert voxel indices back into the host byte order
+        at(i) = ENET_NET_TO_HOST_16(at(i));
+    }
+}
diff --git a/src/game/shared/world/voxel_storage.hh b/src/game/shared/world/voxel_storage.hh
new file mode 100644
index 0000000..ac7f03d
--- /dev/null
+++ b/src/game/shared/world/voxel_storage.hh
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "shared/const.hh"
+#include "shared/types.hh"
+
+namespace io
+{
+class ReadBuffer;
+class WriteBuffer;
+} // namespace io
+
+namespace world
+{
+class VoxelStorage final : public std::array<voxel_id, CHUNK_VOLUME> {
+public:
+    using std::array<voxel_id, CHUNK_VOLUME>::array;
+    void serialize(io::WriteBuffer& buffer) const;
+    void deserialize(io::ReadBuffer& buffer);
+};
+} // namespace world