Friendly NPC

[Foxace]

How to make unit which is 100% controlled by AI but is on the player 1 side and is hostile to player 2?

 

[Nichilus]

You give it to the player who's controller is PC and make that player allied with player1 and enemy with player2

 

[Foxace]

But the unit must not do anything until player 2 comes in range and when player 2 leaves the area or is dead, npc is inactive again. Just like any boss in world of warcraft.

 

[yip]

But the unit must not do anything until player 2 comes in range and when player 2 leaves the area or is dead, npc is inactive again. Just like any boss in world of warcraft.

Without an AI/controller, that's how any hostile enemy unit will behave, I think... they'll only attack if you come within their acquisition range, and only chase until a certain distance from their placement point is reached. If you run away, they'll go back.

Of course, you could have triggers order the unit to manually return to it's position at any time. (ex: Every 2 seconds, if Region 'xyz' contains units owned by player 2 equal to false, then do Unit - Issue order targeting a point etc)

With triggers you can probably make something more accurate, yeah.