When i create a doodad like "cargo truck" units can't walk through it. When i create the "fallen asteroid" units can walk through it.
How do i make it so units can't walk through certain doodads like the "fallen asteroid"?
Use the pathing tool. Press H to access it. There's some more info on that in the Terraining FAQ :)
If pathing doesn't work, insert a few path blocking doodads. Not the curtain blockers that block view but the ones that show the "No Foot" sign. I use the 2X2 ones for my bridge railings
You need to add a footprint to the Doodad actor.
Contribute to the wiki (Wiki button at top of page) Considered easy altering of the unit textures?