diff --git a/src/content/ContentLoader.cpp b/src/content/ContentLoader.cpp
index e2bf81f2d..e2a463cac 100644
--- a/src/content/ContentLoader.cpp
+++ b/src/content/ContentLoader.cpp
@@ -441,7 +441,8 @@ static void load_script(const Content& content, T& def) {
             def.name,
             scriptfile,
             def.scriptFile,
-            def.rt.funcsset
+            def.rt.funcsset,
+            def.rt.eventNames
         );
     }
 }
diff --git a/src/items/ItemDef.hpp b/src/items/ItemDef.hpp
index ee37215a6..3f16e04b1 100644
--- a/src/items/ItemDef.hpp
+++ b/src/items/ItemDef.hpp
@@ -15,6 +15,9 @@ struct ItemFuncsSet {
     bool on_block_break_by : 1;
 };
 
+struct ItemFuncNamesCache {
+};
+
 enum class ItemIconType {
     NONE,    // invisible (core:empty) must not be rendered
     SPRITE,  // textured quad: icon is `atlas_name:texture_name`
@@ -75,6 +78,8 @@ struct ItemDef {
         bool emissive = false;
 
         std::set<int> tags;
+
+        ItemFuncNamesCache eventNames;
     } rt {};
 
     ItemDef(const std::string& name);
diff --git a/src/lighting/LightSolver.cpp b/src/lighting/LightSolver.cpp
index cda3ccc88..f43b4d487 100644
--- a/src/lighting/LightSolver.cpp
+++ b/src/lighting/LightSolver.cpp
@@ -1,6 +1,3 @@
-#include <iostream>
-#include <assert.h>
-
 #include "LightSolver.hpp"
 #include "Lightmap.hpp"
 #include "content/Content.hpp"
@@ -9,6 +6,8 @@
 #include "voxels/voxel.hpp"
 #include "voxels/Block.hpp"
 
+#include <assert.h>
+
 LightSolver::LightSolver(const ContentIndices& contentIds, Chunks& chunks, int channel) 
     : blockDefs(contentIds.blocks.getDefs()),
       chunks(chunks), 
@@ -55,7 +54,7 @@ void LightSolver::remove(int x, int y, int z) {
     lightmap.set(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel, 0);
 }
 
-void LightSolver::solve(){
+void LightSolver::solve(Chunk* prevailingChunk) {
     const int coords[] = {
             0, 0, 1,
             0, 0,-1,
@@ -66,47 +65,54 @@ void LightSolver::solve(){
     };
 
     while (!remqueue.empty()){
-        const lightentry entry = remqueue.front();
+        lightentry entry = std::move(remqueue.front());
         remqueue.pop();
 
         for (int i = 0; i < 6; i++) {
-            int imul3 = i*3;
+            int imul3 = i * 3;
             int x = entry.x+coords[imul3];
             int y = entry.y+coords[imul3+1];
             int z = entry.z+coords[imul3+2];
             
-            Chunk* chunk = chunks.getChunkByVoxel(x,y,z);
-            if (chunk) {
-                int lx = x - chunk->x * CHUNK_W;
-                int lz = z - chunk->z * CHUNK_D;
-                chunk->flags.modified = true;
+            Chunk* chunk = prevailingChunk;
+            if (chunk == nullptr || !chunk->isBlockInside(x, z)) {
+                chunk = chunks.getChunkByVoxel(x,y,z);
+                if (chunk == nullptr) {
+                    continue;
+                }
+            } else if (y < 0 || y >= CHUNK_H) {
+                continue;
+            }
 
-                assert(chunk->lightmap != nullptr);
-                auto& lightmap = *chunk->lightmap;
+            int lx = x - chunk->x * CHUNK_W;
+            int lz = z - chunk->z * CHUNK_D;
+            chunk->flags.modified = true;
 
-                ubyte light = lightmap.get(lx,y,lz, channel);
-                if (light != 0 && light == entry.light-1){
-                    voxel* vox = chunks.get(x, y, z);
-                    if (vox && vox->id != 0) {
-                        const Block* block = blockDefs[vox->id];
-                        if (uint8_t emission = block->emission[channel]) {
-                            addqueue.push(lightentry {x, y, z, emission});
-                            lightmap.set(lx, y, lz, channel, emission);
-                        }
-                        else lightmap.set(lx, y, lz, channel, 0);
+            assert(chunk->lightmap != nullptr);
+            auto& lightmap = *chunk->lightmap;
+
+            ubyte light = lightmap.get(lx,y,lz, channel);
+            if (light != 0 && light == entry.light-1) {
+                voxel* vox = chunks.get(x, y, z);
+                if (vox && vox->id != 0) {
+                    const Block* block = blockDefs[vox->id];
+                    if (uint8_t emission = block->emission[channel]) {
+                        addqueue.push(lightentry {x, y, z, emission});
+                        lightmap.set(lx, y, lz, channel, emission);
                     }
                     else lightmap.set(lx, y, lz, channel, 0);
-                    remqueue.push(lightentry {x, y, z, light});
-                }
-                else if (light >= entry.light){
-                    addqueue.push(lightentry {x, y, z, light});
                 }
+                else lightmap.set(lx, y, lz, channel, 0);
+                remqueue.push(lightentry {x, y, z, light});
+            }
+            else if (light >= entry.light) {
+                addqueue.push(lightentry {x, y, z, light});
             }
         }
     }
 
     while (!addqueue.empty()){
-        const lightentry entry = addqueue.front();
+        lightentry entry = std::move(addqueue.front());
         addqueue.pop();
 
         for (int i = 0; i < 6; i++) {
@@ -115,10 +121,16 @@ void LightSolver::solve(){
             int y = entry.y+coords[imul3+1];
             int z = entry.z+coords[imul3+2];
 
-            Chunk* chunk = chunks.getChunkByVoxel(x,y,z);
-            if (chunk == nullptr) {
+            Chunk* chunk = prevailingChunk;
+            if (chunk == nullptr || !chunk->isBlockInside(x, z)) {
+                chunk = chunks.getChunkByVoxel(x,y,z);
+                if (chunk == nullptr) {
+                    continue;
+                }
+            } else if (y < 0 || y >= CHUNK_H) {
                 continue;
             }
+
             assert(chunk->lightmap != nullptr);
             auto& lightmap = *chunk->lightmap;
             int lx = x - chunk->x * CHUNK_W;
diff --git a/src/lighting/LightSolver.hpp b/src/lighting/LightSolver.hpp
index e51863e1e..31c33a804 100644
--- a/src/lighting/LightSolver.hpp
+++ b/src/lighting/LightSolver.hpp
@@ -1,7 +1,8 @@
 #pragma once
 
-#include <queue>
+#include "util/array_queue.hpp"
 
+class Chunk;
 class Chunks;
 class ContentIndices;
 class Block;
@@ -14,8 +15,8 @@ struct lightentry {
 };
 
 class LightSolver {
-    std::queue<lightentry> addqueue;
-    std::queue<lightentry> remqueue;
+    util::array_queue<lightentry> addqueue;
+    util::array_queue<lightentry> remqueue;
     const Block* const* blockDefs;
     Chunks& chunks;
     int channel;
@@ -25,5 +26,5 @@ public:
     void add(int x, int y, int z);
     void add(int x, int y, int z, int emission);
     void remove(int x, int y, int z);
-    void solve();
+    void solve(Chunk* prevailingChunk = nullptr);
 };
diff --git a/src/lighting/Lighting.cpp b/src/lighting/Lighting.cpp
index 9101c72ac..b17b6f333 100644
--- a/src/lighting/Lighting.cpp
+++ b/src/lighting/Lighting.cpp
@@ -167,10 +167,10 @@ void Lighting::onChunkLoaded(int cx, int cz, bool expand) {
             }
         }
     }
-    solverR.solve();
-    solverG.solve();
-    solverB.solve();
-    solverS.solve();
+    solverR.solve(chunk);
+    solverG.solve(chunk);
+    solverB.solve(chunk);
+    solverS.solve(chunk);
 }
 
 void Lighting::onBlockSet(int x, int y, int z, blockid_t id){
@@ -180,9 +180,10 @@ void Lighting::onBlockSet(int x, int y, int z, blockid_t id){
     solverB->remove(x,y,z);
 
     if (id == 0){
-        solverR->solve();
-        solverG->solve();
-        solverB->solve();
+        auto chunk = chunks.getChunkByVoxel(glm::ivec3{x, y, z});
+        solverR->solve(chunk);
+        solverG->solve(chunk);
+        solverB->solve(chunk);
         if (chunks.getLight(x,y+1,z, 3) == 0xF){
             for (int i = y; i >= 0; i--){
                 voxel* vox = chunks.get(x,i,z);
@@ -191,17 +192,30 @@ void Lighting::onBlockSet(int x, int y, int z, blockid_t id){
                 solverS->add(x,i,z, 0xF);
             }
         }
-        solverR->add(x,y+1,z); solverG->add(x,y+1,z); solverB->add(x,y+1,z); solverS->add(x,y+1,z);
-        solverR->add(x,y-1,z); solverG->add(x,y-1,z); solverB->add(x,y-1,z); solverS->add(x,y-1,z);
-        solverR->add(x+1,y,z); solverG->add(x+1,y,z); solverB->add(x+1,y,z); solverS->add(x+1,y,z);
-        solverR->add(x-1,y,z); solverG->add(x-1,y,z); solverB->add(x-1,y,z); solverS->add(x-1,y,z);
-        solverR->add(x,y,z+1); solverG->add(x,y,z+1); solverB->add(x,y,z+1); solverS->add(x,y,z+1);
-        solverR->add(x,y,z-1); solverG->add(x,y,z-1); solverB->add(x,y,z-1); solverS->add(x,y,z-1);
-        solverR->solve();
-        solverG->solve();
-        solverB->solve();
-        solverS->solve();
+        const int coords[] = {
+            0, 0, 1,
+            0, 0,-1,
+            0, 1, 0,
+            0,-1, 0,
+            1, 0, 0,
+            -1, 0, 0
+        };
+        for (int i = 0; i < 6; i++) {
+            int lx = x + coords[i * 3];
+            int ly = y + coords[i * 3 + 1];
+            int lz = z + coords[i * 3 + 2];
+
+            solverR->add(lx, ly, lz);
+            solverG->add(lx, ly, lz);
+            solverB->add(lx, ly, lz);
+            solverS->add(lx, ly, lz);
+            solverR->solve(chunk);
+            solverG->solve(chunk);
+            solverB->solve(chunk);
+            solverS->solve(chunk);
+        }
     } else {
+        auto chunk = chunks.getChunkByVoxel(glm::ivec3{x, y, z});
         if (!block.skyLightPassing){
             solverS->remove(x,y,z);
             for (int i = y-1; i >= 0; i--){
@@ -210,19 +224,19 @@ void Lighting::onBlockSet(int x, int y, int z, blockid_t id){
                     break;
                 }
             }
-            solverS->solve();
+            solverS->solve(chunk);
         }
-        solverR->solve();
-        solverG->solve();
-        solverB->solve();
+        solverR->solve(chunk);
+        solverG->solve(chunk);
+        solverB->solve(chunk);
 
         if (block.emission[0] || block.emission[1] || block.emission[2]){
             solverR->add(x,y,z,block.emission[0]);
             solverG->add(x,y,z,block.emission[1]);
             solverB->add(x,y,z,block.emission[2]);
-            solverR->solve();
-            solverG->solve();
-            solverB->solve();
+            solverR->solve(chunk);
+            solverG->solve(chunk);
+            solverB->solve(chunk);
         }
     }
 }
diff --git a/src/logic/BlocksController.cpp b/src/logic/BlocksController.cpp
index 08e2aae7c..f859a8455 100644
--- a/src/logic/BlocksController.cpp
+++ b/src/logic/BlocksController.cpp
@@ -1,7 +1,5 @@
 #include "BlocksController.hpp"
 
-#include <set>
-
 #include "content/Content.hpp"
 #include "items/Inventories.hpp"
 #include "items/Inventory.hpp"
@@ -175,12 +173,8 @@ void BlocksController::randomTick(
 void BlocksController::randomTick(int tickid, int parts, uint padding) {
     auto indices = level.content.getIndices();
 
-    std::set<uint64_t> chunksIterated;
-
     for (const auto& [pid, player] : *level.players) {
         const auto& chunks = *player->chunks;
-        int offsetX = chunks.getOffsetX();
-        int offsetY = chunks.getOffsetY();
         int width = chunks.getWidth();
         int height = chunks.getHeight();
         int segments = 4;
@@ -195,20 +189,15 @@ void BlocksController::randomTick(int tickid, int parts, uint padding) {
                 if (chunk == nullptr || !chunk->flags.lighted) {
                     continue;
                 }
-                union {
-                    int32_t pos[2];
-                    uint64_t key;
-                } posU;
-                posU.pos[0] = x + offsetX;
-                posU.pos[1] = z + offsetY;
-                if (chunksIterated.find(posU.key) != chunksIterated.end()) {
+                if (chunk->lastRandomTickId == randomTickId) {
                     continue;
                 }
-                chunksIterated.insert(posU.key);
+                chunk->lastRandomTickId = randomTickId;
                 randomTick(*chunk, segments, indices);
             }
         }
     }
+    randomTickId++;
 }
 
 int64_t BlocksController::createBlockInventory(int x, int y, int z) {
diff --git a/src/logic/BlocksController.hpp b/src/logic/BlocksController.hpp
index f3fa5f67a..8b26e0190 100644
--- a/src/logic/BlocksController.hpp
+++ b/src/logic/BlocksController.hpp
@@ -33,6 +33,7 @@ class BlocksController {
     util::Clock worldTickClock;
     FastRandom random {};
     std::vector<on_block_interaction> blockInteractionCallbacks;
+    uint64_t randomTickId = 0;
 public:
     BlocksController(const Level& level, Lighting* lighting);
 
diff --git a/src/logic/scripting/scripting.cpp b/src/logic/scripting/scripting.cpp
index 4af1a4287..ca1ab3164 100644
--- a/src/logic/scripting/scripting.cpp
+++ b/src/logic/scripting/scripting.cpp
@@ -1,8 +1,5 @@
 #include "scripting.hpp"
 
-#include <iostream>
-#include <stdexcept>
-
 #include "scripting_commons.hpp"
 #include "content/Content.hpp"
 #include "content/ContentPack.hpp"
@@ -28,6 +25,9 @@
 #include "world/World.hpp"
 #include "interfaces/Process.hpp"
 
+#include <iostream>
+#include <stdexcept>
+
 using namespace scripting;
 
 static debug::Logger logger("scripting");
@@ -391,15 +391,15 @@ void scripting::on_blocks_tick(const Block& block, int tps) {
 }
 
 void scripting::update_block(const Block& block, const glm::ivec3& pos) {
-    std::string name = block.name + ".update";
-    lua::emit_event(lua::get_main_state(), name, [pos](auto L) {
+    lua::emit_event(lua::get_main_state(), block.rt.eventNames.update,
+    [pos](auto L) {
         return lua::pushivec_stack(L, pos);
     });
 }
 
 void scripting::random_update_block(const Block& block, const glm::ivec3& pos) {
-    std::string name = block.name + ".randupdate";
-    lua::emit_event(lua::get_main_state(), name, [pos](auto L) {
+    lua::emit_event(lua::get_main_state(), block.rt.eventNames.randomUpdate,
+    [pos](auto L) {
         return lua::pushivec_stack(L, pos);
     });
 }
@@ -660,7 +660,8 @@ void scripting::load_content_script(
     const std::string& prefix,
     const io::path& file,
     const std::string& fileName,
-    BlockFuncsSet& funcsset
+    BlockFuncsSet& funcsset,
+    BlockFuncNamesCache& namesCache
 ) {
     int env = *senv;
     lua::pop(lua::get_main_state(), load_script(env, "block", file, fileName));
@@ -686,6 +687,9 @@ void scripting::load_content_script(
         register_event(env, "on_block_present", prefix + ".blockpresent");
     funcsset.onblockremoved =
         register_event(env, "on_block_removed", prefix + ".blockremoved");
+
+    namesCache.randomUpdate = prefix + ".update";
+    namesCache.randomUpdate = prefix + ".randupdate";
 }
 
 void scripting::load_content_script(
@@ -693,7 +697,8 @@ void scripting::load_content_script(
     const std::string& prefix,
     const io::path& file,
     const std::string& fileName,
-    ItemFuncsSet& funcsset
+    ItemFuncsSet& funcsset,
+    ItemFuncNamesCache& namesCache
 ) {
     int env = *senv;
     lua::pop(lua::get_main_state(), load_script(env, "item", file, fileName));
diff --git a/src/logic/scripting/scripting.hpp b/src/logic/scripting/scripting.hpp
index 298130c99..64fa1a3d1 100644
--- a/src/logic/scripting/scripting.hpp
+++ b/src/logic/scripting/scripting.hpp
@@ -23,7 +23,9 @@ struct ItemDef;
 class Inventory;
 class UiDocument;
 struct BlockFuncsSet;
+struct BlockFuncNamesCache;
 struct ItemFuncsSet;
+struct ItemFuncNamesCache;
 struct WorldFuncsSet;
 struct UserComponent;
 struct uidocscript;
@@ -168,7 +170,8 @@ namespace scripting {
         const std::string& prefix,
         const io::path& file,
         const std::string& fileName,
-        BlockFuncsSet& funcsset
+        BlockFuncsSet& funcsset,
+        BlockFuncNamesCache& namesCache
     );
 
     /// @brief Load script associated with an Item
@@ -182,7 +185,8 @@ namespace scripting {
         const std::string& prefix,
         const io::path& file,
         const std::string& fileName,
-        ItemFuncsSet& funcsset
+        ItemFuncsSet& funcsset,
+        ItemFuncNamesCache& namesCache
     );
 
     /// @brief Load component script
diff --git a/src/util/array_queue.hpp b/src/util/array_queue.hpp
new file mode 100644
index 000000000..649ec2282
--- /dev/null
+++ b/src/util/array_queue.hpp
@@ -0,0 +1,76 @@
+#pragma once
+
+#include <memory>
+#include <cstring>
+#include <stdexcept>
+
+namespace util {
+    template <typename T>
+    class array_queue {
+    public:
+        array_queue(size_t initCapacity = 8)
+            : _capacity(initCapacity),
+              _size(0),
+              _front(0),
+              _back(0),
+              _data(std::make_unique<T[]>(_capacity)) {
+            if (initCapacity == 0 || (initCapacity & (initCapacity - 1)) != 0) {
+                throw std::invalid_argument("initCapacity must be positive power of 2");
+            }
+        }
+
+        ~array_queue() {
+            while (!empty()) {
+                pop();
+            }
+        }
+
+        void push(T&& value) {
+            if (_back == _front && _size) {
+                grow();
+            }
+            _data[_back] = std::forward<T>(value);
+            _back = (_back + 1) & (_capacity - 1);
+            ++_size;
+        }
+
+        T& front() {
+            return _data[_front];
+        }
+
+        void pop() {
+            _data[_front].~T();
+            _front = (_front + 1) & (_capacity - 1);
+            --_size;
+        }
+
+        bool empty() const {
+            return _size == 0;
+        }
+
+        size_t size() const {
+            return _size;
+        }
+
+    private:
+        size_t _capacity;
+        size_t _size;
+        size_t _front;
+        size_t _back;
+        std::unique_ptr<T[]> _data;
+
+        void grow() {
+            size_t newCapacity = _capacity * 2;
+            auto newData = std::make_unique<T[]>(newCapacity);
+
+            std::move(_data.get() + _front, _data.get() + _capacity, newData.get());
+            std::move(_data.get(), _data.get() + _front, newData.get() + (_capacity - _front));
+
+            _back = _size;
+            _front = 0;
+
+            _data.reset(newData.release());
+            _capacity = newCapacity;
+        }
+    };
+}
diff --git a/src/voxels/Block.hpp b/src/voxels/Block.hpp
index 96620c8f9..99b9dee70 100644
--- a/src/voxels/Block.hpp
+++ b/src/voxels/Block.hpp
@@ -54,6 +54,11 @@ struct BlockFuncsSet {
     bool onblockremoved : 1;
 };
 
+struct BlockFuncNamesCache {
+    std::string update;
+    std::string randomUpdate;
+};
+
 struct CoordSystem {
     std::array<glm::ivec3, 3> axes;
     /// @brief Grid 3d position fix offset (for negative vectors)
@@ -296,6 +301,8 @@ public:
         blockid_t surfaceReplacement = 0;
 
         std::set<int> tags;
+
+        BlockFuncNamesCache eventNames;
     } rt {};
 
     Block(const std::string& name);
diff --git a/src/voxels/Chunk.hpp b/src/voxels/Chunk.hpp
index 393f05f8a..5377df020 100644
--- a/src/voxels/Chunk.hpp
+++ b/src/voxels/Chunk.hpp
@@ -40,6 +40,8 @@ public:
         bool dirtyHeights : 1;
     } flags {};
 
+    uint64_t lastRandomTickId = -1;
+
     /// @brief Block inventories map where key is index of block in voxels array
     ChunkInventoriesMap inventories;
     /// @brief Blocks metadata heap
@@ -81,4 +83,10 @@ public:
             glm::vec3((x + 1) * CHUNK_W, INFINITY, (z + 1) * CHUNK_D)
         );
     }
+
+    bool isBlockInside(int x, int z) const {
+        x -= this->x * CHUNK_W;
+        z -= this->z * CHUNK_D;
+        return x >= 0 && z >= 0 && x < CHUNK_W && z < CHUNK_D;
+    }
 };