Fix issue when nether mobs did not spawn on nether bricks.

Flip chances for easier reading.
Add missing mention about deep ocean biome for guardians in readme.

README.md

@@ -42,6 +42,7 @@ Addon will replace Enderman with Shulker by chance from config if:
 Addon will replace Cod, Salamon or Tropical fish with Guardian by chance from config if:
  - given world is generated by GameMode Addon.
  - given world is the Overworld
+ - biome in given location is deep ocean or any its variants
  - first block above water where fish is spawned is prismarine, prismarine brick or dark prismarine (blocks, slabs and stairs).     
 
 ##### For Beehive:

src/main/java/world/bentobox/extramobs/listeners/MobsSpawnListener.java

@@ -73,20 +73,15 @@ public void onEntitySpawn(CreatureSpawnEvent event)
 		{
 			// replace pigmen with blaze or wither
 
-
-
 			if (this.isSuitableNetherLocation(event.getLocation()))
 			{
-				double random = this.spawningRandom.nextDouble();
-
-				if (this.addon.getSettings().getWitherSkeletonChance() >= random)
+				if (this.spawningRandom.nextDouble() < this.addon.getSettings().getWitherSkeletonChance())
 				{
 					// oOo wither skeleton got lucky.
 					this.summonEntity(event.getLocation(), EntityType.WITHER_SKELETON);
 					event.setCancelled(true);
 				}
-				else if (this.addon.getSettings().getWitherSkeletonChance() +
-					this.addon.getSettings().getBlazeChance() >= random)
+				else if (this.spawningRandom.nextDouble() < this.addon.getSettings().getBlazeChance())
 				{
 					// oOo blaze got lucky.
 					this.summonEntity(event.getLocation(), EntityType.BLAZE);
@@ -100,7 +95,7 @@ else if (event.getEntityType() == EntityType.ENDERMAN &&
 			// replace enderman with shulker
 			if (this.isSuitableEndLocation(event.getLocation()))
 			{
-				if (this.addon.getSettings().getShulkerChance() >= this.spawningRandom.nextDouble())
+				if (this.spawningRandom.nextDouble() < this.addon.getSettings().getShulkerChance())
 				{
 					// oOo shulker got lucky.
 					this.summonEntity(event.getLocation(), EntityType.SHULKER);
@@ -129,12 +124,20 @@ else if (world.getEnvironment() == World.Environment.NORMAL &&
 
 				if (this.isSuitableGuardianLocation(event.getLocation()))
 				{
-					if (this.addon.getSettings().getGuardianChance() >= this.spawningRandom.nextDouble())
+					if (this.spawningRandom.nextDouble() < this.addon.getSettings().getGuardianChance())
 					{
 						// oOo guardian got lucky.
 						this.summonEntity(event.getLocation(), EntityType.GUARDIAN);
 						event.setCancelled(true);
 					}
+					else
+					{
+						System.out.println("unlucky");
+					}
+				}
+				else
+				{
+					System.out.println("Not suitable place");
 				}
 			}
 		}
@@ -151,7 +154,7 @@ private boolean isSuitableNetherLocation(Location location)
 	{
 		Material material = location.getBlock().getRelative(BlockFace.DOWN).getType();
 
-		return material == Material.NETHER_BRICK ||
+		return material == Material.NETHER_BRICKS ||
 			material == Material.NETHER_BRICK_SLAB ||
 			material == Material.NETHER_BRICK_STAIRS;
 	}
@@ -190,6 +193,8 @@ private boolean isSuitableGuardianLocation(Location location)
 
 		Material material = block.getType();
 
+		System.out.println("Material is " + material);
+
 		return material == Material.PRISMARINE ||
 			material == Material.PRISMARINE_SLAB ||
 			material == Material.PRISMARINE_STAIRS ||

src/main/java/world/bentobox/extramobs/listeners/TreesGrowthListener.java

@@ -84,7 +84,7 @@ public void onTreeGrowth(StructureGrowEvent event)
 			return;
 		}
 
-		if (this.addon.getSettings().getBeeHiveChance() < this.beeHiveRandom.nextDouble())
+		if (this.beeHiveRandom.nextDouble() >= this.addon.getSettings().getBeeHiveChance())
 		{
 			// Unlucky. BeeHive is not generated.
 			return;
@@ -163,7 +163,7 @@ else if (beeLocation.getRelative(BlockFace.NORTH).isEmpty())
 			// Try to spawn bee 3 times
 			for (int i = 0; i < 3; i++)
 			{
-				if (this.addon.getSettings().getBeeChance() >= this.beeHiveRandom.nextDouble())
+				if (this.beeHiveRandom.nextDouble() < this.addon.getSettings().getBeeChance())
 				{
 					// Spawn Bee :)
 					event.getWorld().spawnEntity(beeLocation.getLocation(), EntityType.BEE);