The wiki is no good on this anymore, since spawning drastically changed in the PC version, but here goes:
The block has to be grass.
The block has to be lit up.
There is a cap of 20 friendly mobs. (I think. If it's not 20, it's still pretty low)
Now for the hard part. This applies to all mobs, not just friendlies. Mobs can spawn in an area that is sphere with a 72 meter radius, but they cannot spawn within a sphere with a 24 meter radius.
Think of it like a donut on a dinner plate. You are the hole. Mobs can spawn anywhere on the dinner plate, but they cannot spawn on the donut.
The block has to be grass.
The block has to be lit up.
There is a cap of 20 friendly mobs. (I think. If it's not 20, it's still pretty low)
Now for the hard part. This applies to all mobs, not just friendlies. Mobs can spawn in an area that is sphere with a 72 meter radius, but they cannot spawn within a sphere with a 24 meter radius.
Think of it like a donut on a dinner plate. You are the hole. Mobs can spawn anywhere on the dinner plate, but they cannot spawn on the donut.
This thread bores me.
In case I forget, Thank you for your time.
---ThatWizardGuy