hi im building a dota map style and i want to know which trigger do you need to put so that the computer will upgrade the buildings and units HP\ARMOR every X seconds.. help would be appreciated.
Well you pretty much just said it right there. Just make a trigger with a periodic time event and order a structure to conduct the research or upgrade.
For example:
Event- Periodic Event: Every ??? seconds of game time
Action- Unit: issue order with no target- Order (unit/research owning building) to research (tech).
It would be pretty much the same trigger for making a town hall-type unit to upgrade to the next structure, but instead of ordering a unit to research, you would be ordering it to upgrade.