[Solved] A Problem with "Unit enters region = spawn units"

[Purgatory]

Hello guys, I'm really new about triggering and i need some help here, I want to make a simple trigger which like the title says, if a unit enters a region, a creep or creeps will spawns, but the problem is, when my unit enter the region, it spawns beyond my expectation, whole shape of the region was filled with creeps, i don't know what is wrong with it, maybe u guys can show me what's wrong with my trigger.

 

[GIMLI_2]

your trigger fires each time a troll spawns, because a unit enters the region
its basically an infinite loop if the trolls wouldnt have collision and the region is filled at some point.
make an if statement like:
triggering unit is a hero
or
triggering unit not equal to Troll

 

[Purgatory]

Well, thats why it spawns an army instead of 1, so the trolls themself fires the trigger?
oh god, that's embarrasing haha. So I have to changed the "unit enters region" part?

 

[LordDz]

Instead of checking unit type,
just do:
Player owner of triggering unit not equal to neutral hostile.

It's condition : Player

 

[Purgatory]

GIMLI_2 and LordDz thanks to both of u, it works fine! haha