1 files changed, 163 insertions, 0 deletions
diff --git a/game/shared/dimension.cc b/game/shared/dimension.cc
new file mode 100644
index 0000000..378779c
--- /dev/null
+++ b/game/shared/dimension.cc
@@ -0,0 +1,163 @@
+#include "shared/pch.hh"
+#include "shared/dimension.hh"
+
+#include "shared/coord.hh"
+#include "shared/globals.hh"
+#include "shared/chunk.hh"
+
+Dimension::Dimension(const char *name, float gravity)
+{
+    m_name = name;
+    m_gravity = gravity;
+}
+
+Dimension::~Dimension(void)
+{
+    for(const auto it : m_hashmap)
+        delete it.second;
+    entities.clear();
+    chunks.clear();
+}
+
+const char *Dimension::get_name(void) const
+{
+    return m_name.c_str();
+}
+
+float Dimension::get_gravity(void) const
+{
+    return m_gravity;
+}
+
+Chunk *Dimension::create_chunk(const chunk_pos &cpos)
+{
+    auto it = m_hashmap.find(cpos);
+
+    if(it != m_hashmap.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_hashmap.insert_or_assign(cpos, std::move(chunk)).first->second;
+}
+
+Chunk *Dimension::find_chunk(entt::entity entity) const
+{
+    if(chunks.valid(entity))
+        return chunks.get<ChunkComponent>(entity).chunk;
+    return nullptr;
+}
+
+Chunk *Dimension::find_chunk(const chunk_pos &cpos) const
+{
+    auto it = m_hashmap.find(cpos);
+    if(it != m_hashmap.cend())
+        return it->second;
+    return nullptr;
+}
+
+void Dimension::remove_chunk(entt::entity entity)
+{
+    if(chunks.valid(entity)) {
+        auto &component = chunks.get<ChunkComponent>(entity);
+        m_hashmap.erase(component.cpos);
+        chunks.destroy(entity);
+    }
+}
+
+void Dimension::remove_chunk(const chunk_pos &cpos)
+{
+    auto it = m_hashmap.find(cpos);
+
+    if(it != m_hashmap.cend()) {
+        chunks.destroy(it->second->get_entity());
+        m_hashmap.erase(it);
+    }
+}
+
+void Dimension::remove_chunk(Chunk *chunk)
+{
+    if(chunk) {
+        const auto &component = chunks.get<ChunkComponent>(chunk->get_entity());
+        m_hashmap.erase(component.cpos);
+        chunks.destroy(chunk->get_entity());
+    }
+}
+
+voxel_id 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 NULL_VOXEL_ID;
+}
+
+voxel_id 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 Dimension::set_voxel(voxel_id voxel, const voxel_pos &vpos)
+{
+    auto cpos = coord::to_chunk(vpos);
+    auto lpos = coord::to_local(vpos);
+
+    if(auto chunk = find_chunk(cpos)) {
+        chunk->set_voxel(voxel, lpos);
+
+        VoxelSetEvent event;
+        event.dimension = this;
+        event.cpos = cpos;
+        event.lpos = lpos;
+        event.voxel = voxel;
+        event.chunk = chunk;
+
+        globals::dispatcher.trigger(event);
+
+        return true;
+    }
+
+    return false;
+}
+
+bool Dimension::set_voxel(voxel_id 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 Dimension::init(Config &config)
+{
+
+}
+
+void Dimension::init_late(std::uint64_t global_seed)
+{
+    
+}
+
+bool Dimension::generate(const chunk_pos &cpos, VoxelStorage &voxels)
+{
+    return false;
+}