world renderer: fix some locking issues

src/main/java/de/bixilon/minosoft/gui/rendering/world/WorldRenderer.kt

@@ -227,7 +227,7 @@ class WorldRenderer(
 
         culledQueue.remove(item.chunkPosition, item.sectionHeight, false)
 
-        meshingQueue.remove(item)
+        meshingQueue.remove(item, false)
 
         loadingQueue.abort(item.chunkPosition, false)
 

src/main/java/de/bixilon/minosoft/gui/rendering/world/queue/CulledQueue.kt

@@ -55,7 +55,6 @@ class CulledQueue(
         if (lock) this.lock.lock()
         this.queue.clear()
         if (lock) this.lock.unlock()
-
     }
 
     fun remove(position: ChunkPosition, lock: Boolean) {
@@ -108,9 +107,10 @@ class CulledQueue(
                 queueIterator.remove()
             }
         }
+        world.chunks.lock.release()
+
         lock.release()
 
-        world.chunks.lock.acquire()
 
         return list
     }

src/main/java/de/bixilon/minosoft/gui/rendering/world/queue/meshing/ChunkMeshingQueue.kt

@@ -129,12 +129,12 @@ class ChunkMeshingQueue(
     }
 
 
-    fun remove(item: WorldQueueItem) {
-        this.lock.lock()
+    fun remove(item: WorldQueueItem, lock: Boolean) {
+        if (lock) this.lock.lock()
         if (this.set.remove(item)) {
             this.queue -= item
         }
-        this.lock.unlock()
+        if (lock) this.lock.unlock()
     }