make creeps roam map

[Nordmar]

Hello, I am looking for a decent creep roam system but I can't find anything. I am working a survival map where zombies spawn at night and they should attack the nearest player or just a random player.

What I tried:
-Wander Ability (terrible idea)
-Order them to attack-move to position of a random hero (bad idea, they ignore sometimes nearby heroes)
-giving them unlimited sight and acquisition range (doesnt work..idk why..they move to the position of a hero for some meters and then move back..)

any ideas?

 

[Jampion]

Manually order them to attack move to position of closest enemy unit. Should be in some kind of periodic trigger, but you should make sure, that not every creep is ordered at the same time. Also the frequency of the orders should not be too high.

 

[Nordmar]

why is it a problem when I order them at the same time? how do I check this? another problem which is weird is when a player is on a cliff and the 2 entries are blocked with barricades. Instead of attacking the barricades the monsters zombies just stand below the cliff trying to attack the hero (which is not possible)...to fix this I need to put the priority of heroes below the one for barricades...hm thats kinda bad

 

[Jampion]

The problem is that calculating the closest hero takes a lot of time. Doing it all at the same time will cause lag spikes periodically. Instead of ordering every 2 seconds (every 2 seconds lag spike), you order every 0.05 seconds some of the units to attack move.
I think this is general warcraft 3 behaviour. Since the barricades do not attack, the zombies try to attack the heroes. Are the barricades hostile to the zombies?

 

[Nordmar]

yes the barricades are hostile. I changed the priority to make it work..its fine but not perfect.

 

[Jampion]

Try this:
Units owned by neutral hostile will attack the closest unit owned by player 1.