1 files changed, 6 insertions, 10 deletions

diff --git a/src/MobSpawner.cpp b/src/MobSpawner.cpp
index 60f7cfb43..98c428bab 100644
--- a/src/MobSpawner.cpp
+++ b/src/MobSpawner.cpp
@@ -111,12 +111,8 @@ eMonsterType cMobSpawner::ChooseMobType(EMCSBiome a_Biome)
 	if (allowedMobsSize > 0)
 	{
 		std::set<eMonsterType>::iterator itr = allowedMobs.begin();
-		int iRandom = m_Random.NextInt(static_cast<int>(allowedMobsSize));
 
-		for (int i = 0; i < iRandom; i++)
-		{
-			++itr;
-		}
+		std::advance(itr, GetRandomProvider().RandInt<size_t>(allowedMobsSize - 1));
 
 		return *itr;
 	}
@@ -139,7 +135,7 @@ bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_R
 		return false;   // Make sure mobs do not spawn on bedrock.
 	}
 
-	cFastRandom Random;
+	auto & Random = GetRandomProvider();
 	BLOCKTYPE TargetBlock = a_Chunk->GetBlock(a_RelX, a_RelY, a_RelZ);
 
 	cPlayer * a_Closest_Player = a_Chunk->GetWorld()->FindClosestPlayer(a_Chunk->PositionToWorldPosition(a_RelX, a_RelY, a_RelZ), 24);
@@ -202,7 +198,7 @@ bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_R
 					(BlockBelow == E_BLOCK_GRASS) || (BlockBelow == E_BLOCK_LEAVES) || (BlockBelow == E_BLOCK_NEW_LEAVES)
 				) &&
 				(a_RelY >= 62) &&
-				(Random.NextInt(3) != 0)
+				(Random.RandBool(2.0 / 3.0))
 			);
 		}
 
@@ -260,7 +256,7 @@ bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_R
 				(!cBlockInfo::IsTransparent(BlockBelow)) &&
 				(SkyLight <= 7) &&
 				(BlockLight <= 7) &&
-				(Random.NextInt(2) == 0)
+				(Random.RandBool())
 			);
 		}
 
@@ -274,7 +270,7 @@ bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_R
 				(!cBlockInfo::IsTransparent(BlockBelow)) &&
 				(SkyLight <= 7) &&
 				(BlockLight <= 7) &&
-				(Random.NextInt(2) == 0)
+				(Random.RandBool())
 			);
 		}
 
@@ -298,7 +294,7 @@ bool cMobSpawner::CanSpawnHere(cChunk * a_Chunk, int a_RelX, int a_RelY, int a_R
 				(TargetBlock == E_BLOCK_AIR) &&
 				(BlockAbove == E_BLOCK_AIR) &&
 				(!cBlockInfo::IsTransparent(BlockBelow)) &&
-				(Random.NextInt(20) == 0)
+				(Random.RandBool(0.05))
 			);
 		}