[Solved] Unit comes within range of unit type

[Civil]

Hi,

I want the computer player to cast an ability when a unit type with that ability enters the range of any unit.

I encountered the problem that you can't check for unit type, so I tried this workaround method of adding an event through a trigger:

• trigger events
  • Events
    • Time - Elapsed game time is 0.00 seconds
  • Conditions
  • Actions
    • Unit Group - Pick every unit in (Units of type Troll Trapper) and do (Actions)
      • Loop - Actions
        • Trigger - Add to trap <gen> the event (Unit - A unit comes within 400.00 of (Picked unit))

• trap
  • Events
  • Conditions
  • Actions
    • Unit - Order (Picked unit) to Orc Raider - Ensnare (Triggering unit)

This method works to fire the second trigger, but I can only refer to the unit entering range within the second trigger and not picked unit.

How do I get this working and is there another way? I thought about using periodical check, but too many periodical checks causes lag right?

I was also wondering if using unit group - pick every unit through an event add will leak once or every time the second trigger fires, and how to clean that up: if I use

• Custom script: set bj_wantDestroyGroup = true

then the second trigger won't fire.

 

[Tasyen]

There is another way you give your units dummy auto cast spells (based on curse or slow) doing nothing (by setting duration to 0.01) when that dummy autocast is used let an hidden unit cast the ensnare spell.

 

[Dr Super Good]

Poll every unit of the appropriate type and check for possible victims nearby to cast against. By staggering the polling operations over a period of time the system will remain both performant and scaleable.

 

[Tal'Rarity]

Try using Unit Within Range 1.5 .

 

[Civil]

The Unit Within Range 1.5 works and achieved what I wanted. And your other advice will come in handy, thanks all.