Stephan
- spire
- spire
- Europe/Stockholm
- Yes
- No
As the title says slime-spawning is messed up since 14w06a/b. Medium/Big Magma/slimes spawn within a block and suffocate. It seems like there is no check if the bigger type collides with a block and therefore spawns although it should not.
Mac OSX 10.9
I´ll explain everything in the video:
Mod edit: Added description of above link:
The problem mentioned in the video also affects normal slime spawning in the overworld. To explain it short: In the latest snapshots the algorithm for slime spawning does not check if medium or big slimes collide with blocks, therefore they can spawn within blocks. This causes the following problems:
- small slimes fill up the Mobcap
- less Zombiepigmen/WitherSkeletons/Blazes are spawning
- farming skulls/nuggets/rods will become a lot harder
- the Nether will become a lot easier since those mobs will spawn very rarely
- a lot of gold farms and ALL WitherSkeleton farms will break in 1.8
I´ll explain everything in the video:
Mod edit: Added description of above link:
The problem mentioned in the video also affects normal slime spawning in the overworld. To explain it short: In the latest snapshots the algorithm for slime spawning does not check if medium or big slimes collide with blocks, therefore they can spawn within blocks. This causes the following problems:
- small slimes fill up the Mobcap
- less Zombiepigmen/WitherSkeletons/Blazes are spawning
- farming skulls/nuggets/rods will become a lot harder
- the Nether will become a lot easier since those mobs will spawn very rarely
- a lot of gold farms and ALL WitherSkeleton farms will break in 1.8
Update:
After a bit more testing it looks like the new spawning works this way:
- If a spawnable block was found the game checks if there is something with a hitbox directly above this spot (any block solid or transparent)
- If that is the case no slime is able to spawn
- If there is no hitbox above this single block a slime can spawn in all sizes
- Problem is that there is no seperate check for surrounding blocks if its a medium or big slime
--> Slimes spawn in blocks and can suffocate
I´ll explain everything in the video:
Mod edit: Added description of above link:
The problem mentioned in the video also affects normal slime spawning in the overworld. To explain it short: In the latest snapshots the algorithm for slime spawning does not check if medium or big slimes collide with blocks, therefore they can spawn within blocks. This causes the following problems:
- small slimes fill up the Mobcap
- less Zombiepigmen/WitherSkeletons/Blazes are spawning
- farming skulls/nuggets/rods will become a lot harder
- the Nether will become a lot easier since those mobs will spawn very rarely
- a lot of gold farms and ALL WitherSkeleton farms will break in 1.8
Update:
After a bit more testing it looks like the new spawning works this way:
- If a spawnable block was found the game checks if there is something with a hitbox directly above this spot (any block solid or transparent)
- If that is the case no slime is able to spawn
- If there is no hitbox above this single block a slime can spawn in all sizes
- Problem is that there is no seperate check for surrounding blocks if its a medium or big slime
--> Slimes spawn in blocks and can suffocateThey basically use the normal 2 high mobspawning rules like Creeper, Zombies etc. which makes no sense for slimes since they have completely different hotboxes.

Jeah they changed the way pistons are updating. BUT its illogical that a BUD-powered piston is preferred. The normal piston is powered directly, so this one should extend first. Like it was before. Im very sad about that bug
Because it took ages to invent this thing and as i said it is based on a perfectly calculated timing difference...
I added the world file.