When player has (x) item, (y) mobs don't attack?

[SonicStar]

Hi all,

 

I'm certainly not new to modding and definitely not new to Java. However, I'm currently developing a Mod and as one feature I'd like to have is that when the player is wearing a ('Zombie Chestplate'), the Zombies don't attack, but other mobs still do.

 

I've been scratching my head and I just can't figure it out.

 

Any ideas?

Many thanks,

Sonic!

[SonicStar]

I'll give it a shot tomorrow. Thanks a lot!