How do I make a boss attack another boss?

[vinicius]

I intend to make a fight of 2 bosses, what software can I use to change the boss's target? to he attacks another boss and ignores the player.

 

[Prime 2.0]

Set its target variable. You can do that directly with Lua, or use A_FindTarget. By default, the boss's target will switch to whatever hit it whenever it is damaged.

You should look up the SOC and Lua tutorials on the wiki for more information.