How to create an AI that seeks out and attacks like the one in Fortress Survival

[Acorn511]

Is there any efficent way to spawn creeps that actively seek out and attack player bases? Right now I only know how to make it attack a static region.

+rep for triggers or methods that work =D

 

[Pharaoh_]

If your map already has Player Start Location set, then you can do this:

• Trigger
• Events
  • Unit - A unit finishes training a unit
• Conditions
• Actions
  • For each (IntegerA) from 1 to 10, do (Actions)
    • Loop - Actions
      • Set Points[(IntegerA)] = ((Player(IntegerA))'s Start Location)
      • Unit - Order (Trained unit) to Attack - Move to (Points[(Random Integer number between 1 and 10)])
      • Custom script: call RemoveLocation (udg_Points[bj_forLoopAIndex])

P.S. This is not the solution, this is how to get it started.

You can also make regions, that checks if the Owner of Picked unit is Equal to Neutral Hostile/Passive and, if not, then order your units to go on that region.
In the World Editor, create a region on every Player's Start Location. Then, do this:

• Tr
• Events
  • Map Initialization
• Conditions
• Actions
  • Set Regions[1] = (Region 000 <gen>)
  • Set Regions[2] = (Region 001 <gen>)
  • ...
  • Set Regions[10] = (Region 010 <gen>)

• Trig
• Events
  • Unit - A unit finishes training a unit
• Conditions
• Actions
  • For each (IntegerA) from 1 to 10, do (Actions)
    • Loop - Actions
      • Set Temp_Group = (Units in Region[(IntegerA)])
      • Unit Group - Pick every unit in (Temp_Group) and do (Actions)
        • Loop - Actions
          • If (All conditions are true) then do (Actions) else do (Actions)
            • If - Conditions
              • Or - Conditions
                • (Owner of (Picked unit)) Not Equal to Neutral Passive
                • (Owner of (Picked unit)) Not Equal to Neutral Hostile
            • Then - Actions
              • Set Point1 = (Center of (Regions[(IntegerA)])
              • Unit - Order (Trained unit) to Attack - Move to (Point1)
              • Custom script: call RemoveLocation (udg_Point1)
            • Else - Actions
      • Custom script: call DestroyGroup (udg_Temp_Group)

 

[Maker]

You can set all (enemy) buildings into a unit group, and then order them to attack-move to a position of random unit from the unit group.

Or you can order them to attack closest unit or building, this is the trigger that selects closest unit:

Trigger

• Closest Unit
  • Events
  • Conditions
  • Actions
    • Set Temp_Unit_1 = The unit you want to order to do something
    • Set Temp_Loc_1 = (Position of Temp_Unit_1)
    • Set Temp_Real_1 = 9999999.00
    • Set Temp_Group_1 = (Units in (Playable map area) matching (Temp_Unit_1 Not equal to (Matching unit))) // select all units you want to compare the distance to
    • Unit Group - Pick every unit in Temp_Group_1 and do (Actions)
      • Loop - Actions
        • Set Temp_Loc_2 = (Position of (Picked unit))
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Distance between Temp_Loc_1 and Temp_Loc_2) Less than Temp_Real_1
          • Then - Actions
            • Set Temp_Unit_2 = (Picked unit)
            • Set Temp_Real_1 = (Distance between Temp_Loc_1 and Temp_Loc_2)
          • Else - Actions
        • Custom script: call RemoveLocation(udg_Temp_Loc_2)
    • Custom script: call RemoveLocation(udg_Temp_Loc_1)
    • Custom script: call DestroyGroup(udg_Temp_Group_1)
    • // The closest unit to Temp_Unit_From the unit group will be saved to Temp_Unit_2

You can also periodically pick all zombies and check their current order. If it equals to empty string, order them to do something.