As the title says. I'm trying to find out how to make it so that Cows after being given 3 of a custom item become a custom mob I made. Kind of like Twilight Forest's transformation powder that changes normal animals into the twilight animals.

Also if there is a way to have it so I do not edit the base files.

Only way's I have thought up is somehow with Ocelot's being given fish and made into a cat. Or make it so the custom item is set to change the mob.

(Sorry if there is some obvious answer I just cannot see it)

I need help changing Cows but not the base file so that with 3 of a custom item it becomes a custom mob.

Use

IExtendedEntityProperties

(1.7.10-1.8. or Capabilities (1.8.9+) to store how many of the item has been given to the cow. When it reaches 3, kill the cow and spawn your mob at the same position.

 

For

IEEP

, you can follow coolAlias' tutorial. For Capabilities, you can read the official documentation, look at the Capabilities provided by Forge (

CapabilityItemHandler

and

CapabilityAnimation

), the capability test mod or my own mod's capabilities (API, implementation).

 

I highly recommend updating to 1.8.9 or 1.9, 1.7.10 is very outdated at this point.