update ChunksStorage

dev/tests/example.lua

@@ -1,20 +1 @@
--- Create/close/open/close world
-
--- Open
-test.new_world("demo", "2019", "core:default")
-assert(world.is_open())
-assert(world.get_generator() == "core:default")
-test.sleep(1)
-assert(world.get_total_time() > 0.0)
-print(world.get_total_time())
-
--- Close
-test.close_world(true)
-assert(not world.is_open())
-
--- Reopen
-test.open_world("demo")
-assert(world.is_open())
-assert(world.get_total_time() > 0.0)
-test.tick()
-test.close_world(true)
+print("hello world")

dev/tests/world.lua

@@ -0,0 +1,23 @@
+-- Create/close/open/close world
+
+-- Open
+test.new_world("demo", "2019", "core:default")
+assert(world.is_open())
+assert(world.get_generator() == "core:default")
+test.sleep(1)
+assert(world.get_total_time() > 0.0)
+print(world.get_total_time())
+
+-- Close
+test.close_world(true)
+assert(not world.is_open())
+
+-- Reopen
+test.open_world("demo")
+assert(world.is_open())
+assert(world.get_total_time() > 0.0)
+assert(world.get_seed() == 2019)
+test.tick()
+
+-- Close
+test.close_world(true)

src/frontend/hud.cpp

@@ -295,7 +295,7 @@ void Hud::updateWorldGenDebugVisualization() {
             data[(flippedZ * width + x) * 4 + 1] = 
                 level.chunks->getChunk(ax + ox, az + oz) ? 255 : 0;
             data[(flippedZ * width + x) * 4 + 0] = 
-                level.chunksStorage->get(ax + ox, az + oz) ? 255 : 0;
+                level.chunksStorage->fetch(ax + ox, az + oz) ? 255 : 0;
 
             if (ax < 0 || az < 0 || 
                 ax >= areaWidth || az >= areaHeight) {

src/voxels/ChunksStorage.cpp

@@ -20,23 +20,18 @@ static debug::Logger logger("chunks-storage");
 ChunksStorage::ChunksStorage(Level* level) : level(level) {
 }
 
-void ChunksStorage::store(const std::shared_ptr<Chunk>& chunk) {
-    chunksMap[glm::ivec2(chunk->x, chunk->z)] = chunk;
-}
+std::shared_ptr<Chunk> ChunksStorage::fetch(int x, int z) {
+    std::lock_guard lock(mutex);
 
-std::shared_ptr<Chunk> ChunksStorage::get(int x, int z) const {
     auto found = chunksMap.find(glm::ivec2(x, z));
     if (found == chunksMap.end()) {
         return nullptr;
     }
-    return found->second;
-}
-
-void ChunksStorage::remove(int x, int z) {
-    auto found = chunksMap.find(glm::ivec2(x, z));
-    if (found != chunksMap.end()) {
-        chunksMap.erase(found->first);
+    auto ptr = found->second.lock();
+    if (ptr == nullptr) {
+        chunksMap.erase(found);
     }
+    return ptr;
 }
 
 static void check_voxels(const ContentIndices& indices, Chunk* chunk) {
@@ -63,11 +58,21 @@ static void check_voxels(const ContentIndices& indices, Chunk* chunk) {
 }
 
 std::shared_ptr<Chunk> ChunksStorage::create(int x, int z) {
+    std::lock_guard lock(mutex);
+
+    auto found = chunksMap.find(glm::ivec2(x, z));
+    if (found != chunksMap.end()) {
+        auto chunk = found->second.lock();
+        if (chunk) {
+            return chunk;
+        }
+    }
+
     World* world = level->getWorld();
     auto& regions = world->wfile.get()->getRegions();
 
     auto chunk = std::make_shared<Chunk>(x, z);
-    store(chunk);
+    chunksMap[glm::ivec2(chunk->x, chunk->z)] = chunk;
     if (auto data = regions.getVoxels(chunk->x, chunk->z)) {
         const auto& indices = *level->content->getIndices();
 

src/voxels/ChunksStorage.hpp

@@ -1,11 +1,9 @@
 #pragma once
 
+#include <mutex>
 #include <memory>
 #include <unordered_map>
 
-#include "typedefs.hpp"
-#include "voxel.hpp"
-
 #define GLM_ENABLE_EXPERIMENTAL
 #include <glm/gtx/hash.hpp>
 
@@ -14,13 +12,12 @@ class Level;
 
 class ChunksStorage {
     Level* level;
-    std::unordered_map<glm::ivec2, std::shared_ptr<Chunk>> chunksMap;
+    std::mutex mutex;
+    std::unordered_map<glm::ivec2, std::weak_ptr<Chunk>> chunksMap;
 public:
     ChunksStorage(Level* level);
     ~ChunksStorage() = default;
 
-    std::shared_ptr<Chunk> get(int x, int z) const;
-    void store(const std::shared_ptr<Chunk>& chunk);
-    void remove(int x, int y);
+    std::shared_ptr<Chunk> fetch(int x, int z);
     std::shared_ptr<Chunk> create(int x, int z);
 };

src/world/Level.cpp

@@ -62,10 +62,6 @@ Level::Level(
     );
     lighting = std::make_unique<Lighting>(content, chunks.get());
 
-    events->listen(EVT_CHUNK_HIDDEN, [this](lvl_event_type, Chunk* chunk) {
-        this->chunksStorage->remove(chunk->x, chunk->z);
-    });
-
     inventories = std::make_unique<Inventories>(*this);
 }