I want to incorporate snow golems into my mob grinders. How close does a hostile mob need to be in order for a snow golem to begin throwing snowballs?
I tested this by making a hall in creative mode and blocking a zombie in a small chamber on one end and letting a snow golem go on the other. He ran forward until he was 10 blocks away and started pelting the zombie with snowballs until I quit the game.
For those that aren't clear, here's how I counted:
Their sight seems to be 16, the same as most mobs. I made one 18 blocks away, and he couldn't see the zombie from there.