diff --git a/src/logic/BlocksController.cpp b/src/logic/BlocksController.cpp
index 5a57d729..8f49635c 100644
--- a/src/logic/BlocksController.cpp
+++ b/src/logic/BlocksController.cpp
@@ -15,42 +15,6 @@
 
 #include "scripting/scripting.hpp"
 
-Clock::Clock(int tickRate, int tickParts)
-    : tickRate(tickRate),
-      tickParts(tickParts) {
-}
-
-bool Clock::update(float delta) {
-    tickTimer += delta;
-    float delay = 1.0f / float(tickRate);    
-    if (tickTimer > delay || tickPartsUndone) {
-        if (tickPartsUndone) {
-            tickPartsUndone--;
-        } else {
-            tickTimer = fmod(tickTimer, delay);
-            tickPartsUndone = tickParts-1;
-        }
-        return true;
-    }
-    return false;
-}
-
-int Clock::getParts() const {
-    return tickParts;
-}
-
-int Clock::getPart() const {
-    return tickParts-tickPartsUndone-1;
-}
-
-int Clock::getTickRate() const {
-    return tickRate;
-}
-
-int Clock::getTickId() const {
-    return tickId;
-}
-
 BlocksController::BlocksController(Level* level, uint padding) 
     : level(level), 
       chunks(level->chunks.get()), 
@@ -134,12 +98,34 @@ void BlocksController::onBlocksTick(int tickid, int parts) {
     }
 }
 
+void BlocksController::randomTick(
+    const Chunk& chunk, int segments, const ContentIndices* indices
+) {
+    const int segheight = CHUNK_H / segments;
+
+    for (int s = 0; s < segments; s++) {
+        for (int i = 0; i < 4; i++) {
+            int bx = random.rand() % CHUNK_W;
+            int by = random.rand() % segheight + s * segheight;
+            int bz = random.rand() % CHUNK_D;
+            const voxel& vox = chunk.voxels[(by * CHUNK_D + bz) * CHUNK_W + bx];
+            Block* block = indices->blocks.get(vox.id);
+            if (block->rt.funcsset.randupdate) {
+                scripting::random_update_block(
+                    block, 
+                    chunk.x * CHUNK_W + bx, by, 
+                    chunk.z * CHUNK_D + bz
+                );
+            }
+        }
+    }
+}
+
 void BlocksController::randomTick(int tickid, int parts) {
+    auto indices = level->content->getIndices();
     const int w = chunks->w;
     const int d = chunks->d;
     int segments = 4;
-    int segheight = CHUNK_H / segments;
-    auto indices = level->content->getIndices();
     
     for (uint z = padding; z < d-padding; z++){
         for (uint x = padding; x < w-padding; x++){
@@ -151,22 +137,7 @@ void BlocksController::randomTick(int tickid, int parts) {
             if (chunk == nullptr || !chunk->flags.lighted) {
                 continue;
             }
-            for (int s = 0; s < segments; s++) {
-                for (int i = 0; i < 4; i++) {
-                    int bx = random.rand() % CHUNK_W;
-                    int by = random.rand() % segheight + s * segheight;
-                    int bz = random.rand() % CHUNK_D;
-                    const voxel& vox = chunk->voxels[(by * CHUNK_D + bz) * CHUNK_W + bx];
-                    Block* block = indices->blocks.get(vox.id);
-                    if (block->rt.funcsset.randupdate) {
-                        scripting::random_update_block(
-                            block, 
-                            chunk->x * CHUNK_W + bx, by, 
-                            chunk->z * CHUNK_D + bz
-                        );
-                    }
-                }
-            }
+            randomTick(*chunk, segments, indices);
         }
     }
 }
diff --git a/src/logic/BlocksController.hpp b/src/logic/BlocksController.hpp
index 179302f5..0c904932 100644
--- a/src/logic/BlocksController.hpp
+++ b/src/logic/BlocksController.hpp
@@ -4,6 +4,7 @@
 #include "../typedefs.hpp"
 #include "../maths/fastmaths.hpp"
 #include "../voxels/voxel.hpp"
+#include "../util/Clock.hpp"
 
 #include <functional>
 #include <glm/glm.hpp>
@@ -11,8 +12,10 @@
 class Player;
 class Block;
 class Level;
+class Chunk;
 class Chunks;
 class Lighting;
+class ContentIndices;
 
 enum class BlockInteraction {
     step,
@@ -25,32 +28,14 @@ using on_block_interaction = std::function<void(
     Player*, glm::ivec3, const Block*, BlockInteraction type
 )>;
 
-class Clock {
-    int tickRate;
-    int tickParts;
-
-    float tickTimer = 0.0f;
-    int tickId = 0;
-    int tickPartsUndone = 0;
-public:
-    Clock(int tickRate, int tickParts);
-
-    bool update(float delta);
-
-    int getParts() const;
-    int getPart() const;
-    int getTickRate() const;
-    int getTickId() const;
-};
-
-/* BlocksController manages block updates and block data (aka inventories) */
+/// BlocksController manages block updates and data (inventories, metadata)
 class BlocksController {
     Level* level;
 	Chunks* chunks;
 	Lighting* lighting;
-    Clock randTickClock;
-    Clock blocksTickClock;
-    Clock worldTickClock;
+    util::Clock randTickClock;
+    util::Clock blocksTickClock;
+    util::Clock worldTickClock;
     uint padding;
     FastRandom random;
     std::vector<on_block_interaction> blockInteractionCallbacks;
@@ -64,6 +49,7 @@ public:
     void placeBlock(Player* player, const Block* def, blockstate state, int x, int y, int z);
 
     void update(float delta);
+    void randomTick(const Chunk& chunk, int segments, const ContentIndices* indices);
     void randomTick(int tickid, int parts);
     void onBlocksTick(int tickid, int parts);
     int64_t createBlockInventory(int x, int y, int z);
diff --git a/src/util/Clock.cpp b/src/util/Clock.cpp
new file mode 100644
index 00000000..bb81112e
--- /dev/null
+++ b/src/util/Clock.cpp
@@ -0,0 +1,41 @@
+#include "Clock.hpp"
+
+#include <cmath>
+
+using namespace util;
+
+Clock::Clock(int tickRate, int tickParts)
+    : tickRate(tickRate),
+      tickParts(tickParts) {
+}
+
+bool Clock::update(float delta) {
+    tickTimer += delta;
+    float delay = 1.0f / float(tickRate);    
+    if (tickTimer > delay || tickPartsUndone) {
+        if (tickPartsUndone) {
+            tickPartsUndone--;
+        } else {
+            tickTimer = std::fmod(tickTimer, delay);
+            tickPartsUndone = tickParts-1;
+        }
+        return true;
+    }
+    return false;
+}
+
+int Clock::getParts() const {
+    return tickParts;
+}
+
+int Clock::getPart() const {
+    return tickParts-tickPartsUndone-1;
+}
+
+int Clock::getTickRate() const {
+    return tickRate;
+}
+
+int Clock::getTickId() const {
+    return tickId;
+}
diff --git a/src/util/Clock.hpp b/src/util/Clock.hpp
new file mode 100644
index 00000000..6a59051a
--- /dev/null
+++ b/src/util/Clock.hpp
@@ -0,0 +1,24 @@
+#ifndef UTIL_CLOCK_HPP_
+#define UTIL_CLOCK_HPP_
+
+namespace util {
+    class Clock {
+        int tickRate;
+        int tickParts;
+
+        float tickTimer = 0.0f;
+        int tickId = 0;
+        int tickPartsUndone = 0;
+    public:
+        Clock(int tickRate, int tickParts);
+
+        bool update(float delta);
+
+        int getParts() const;
+        int getPart() const;
+        int getTickRate() const;
+        int getTickId() const;
+    };
+}
+
+#endif // UTIL_CLOCK_HPP_