Changing mob spawning mechanics

[gcewing]

I'd like to change the way mob spawning is done, so that instead of mobs just appearing randomly in the vicinity of the player, they emerge from particular structures found in caves, etc. Similar to the way mob spawners currently work, except that they would have a much bigger activation range.

 

First, does anyone know of an existing mod that does anything like this?

 

Second, any ideas on how to override the existing mob spawning code? I will need to somehow disable the current spawning behaviour for some (but probably not all) of the hostile mobs. Forge doesn't seem to provide much in the way of hooks for this, and I'd really like to avoid modifying base classes if at all possible.

[Green0Yoshi]

If you want to change vanilla, you need core-mod or jar mod. If you want your own mobs, there is a function (somewhere) that spawns at a certain X,Y,Z. Don't ask me how to make a core-mod, go ask someone else.

 

-Green0Yoshi

 

P.S. I may be wrong about the function, but I'm pretty sure that's how it works.