A Problem

[matin45]

I want to remove these rocky ground below buildings. How?

 

[Warseeker]

Check "Art - Ground Texture" in Object Editor.

 

[matin45]

Another problem when I create fly units they haven't collision so you can have a lot of them in a point

How can I set collision for them?

 

[Warseeker]

Another problem when I create fly units they haven't collision so you can have a lot of them in a point
View attachment 332198
How can I set collision for them?

It's normal for flying units to pass through each others cause they have low collision size. Anyway, did you turn off their collision in the Object Editor or with triggers? Do they have locust ability?

 

[Uncle]

You use Separation Radius for flying units.

 

[Dr Super Good]

Flying units that are moving can pass through other flying units. It is a fundamental mechanic of Warcraft III.

 

[matin45]

Flying units that are moving can pass through other flying units. It is a fundamental mechanic of Warcraft III.

And we can't change it?
when create them with trigger and order them to move, they're like a single unit

 

[Dr Super Good]

And we can't change it?

Not as far as I am aware. It has been an issue for TD makers for a long time.

when create them with trigger and order them to move, they're like a single unit

Stagger their creation. For example create 1 of them every 0.25 seconds and order them to move. This is how most TDs get around it.