Open Gate when all units in region are dead?

[shermellow]

I want to create a dungeon trap where when you enter a room the gate closes behind you and enemies spawn and the gate only reopens after all the enemies that spawned are dead. How would I go about creating this? I tried creating a unit group but couldnt figure out how to get the # of units in that unit group, so then I tried to create a REAL variable value and -1 for each unit until it reaches 0 but that didnt work either. Thanks in advance

 

[ap0calypse]

If you want to use a counter like that, use an integer. A real variable isn't good for such a thing.
It should still work, though.

Example Trigger

• Open Gate
  • Events
    • Unit - Unit1 Dies
    • Unit - Unit2 Dies
    • Unit - Unit3 Dies
    • Unit - Unit4 Dies
  • Conditions
  • Actions
    • Set UnitCounter = (UnitCounter - 1)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • UnitCounter Equal to 0
      • Then - Actions
        • Destructible - Open MyGate
      • Else - Actions

Where "UnitCounter" is an integer variable.

No unit group required (getting the unit count of a unit group is possible (this also uses an integer), but it's slower and not recommended.)

 

[D0W3R]

Hidden

• Unit - Dies
• Conditions
  • Owner of dying unit is Player X
• Actions
  • Set MOBS_Count = Count living units in region X matching Owner of the maching unit equal to Player X
  • If then else do
    • conditions
      • Integer MOBS_Count is equal to 0
    • then do
      • Your actions
      • ===Try adding "Game Display to Players Integer MOBS_Count" these things help a lot===
    • Else do

I think this trigger has a group leak
Better use this one

Hidden

• Unit - Dies
• Conditions
  • Owner of dying unit is Player X
• Actions
  • Set MOBS_Group = Pick every unit in region X matching Owner of the maching unit equal to Player X
  • Set MOBS_Count = Count living units in MOBS_Group
  • If then else do
    • conditions
      • Integer MOBS_Count is equal to 0
    • then do
      • Your actions
      • Custom script: call DestroyGroup (udg_MOBS_Group)
      • ===Try adding "Game Display to Players Integer MOBS_Count" these things help a lot===
    • Else do

I dont think it has Point leak so u may use this (LOL):

Hidden

• Unit - Dies
• Conditions
  • Owner of dying unit is Player X
• Actions
  • Set MOBS_Point = Region X
  • Set MOBS_Group = Pick every unit in MOBS_Point matching Owner of the maching unit equal to Player X
  • Set MOBS_Count = Count living units in MOBS_Group
  • If then else do
    • conditions
      • Integer MOBS_Count is equal to 0
    • then do
      • Your actions
      • ===Try adding "Game Display to Players Integer MOBS_Count" these things help a lot===
      • Custom script: call DestroyGroup (udg_MOBS_Group)
      • Custom script: call RemoveLocation (udg_MOBS_Point)
    • Else do

 

[Maker]

DOW3R, the leak removals should be done after the if/hen/else.

RemoveLocation works for point type variables, you are mixing it with region type object.

 

[D0W3R]

DOW3R, the leak removals should be done after the if/hen/else.

RemoveLocation works for point type variables, you are mixing it with region type object.

So I have to use:

• Custom script: call RemoveRect (udg_Temp_Region)

Instead of

• Custom script: call RemoveLocation (udg_Temp_Point)

as much as I can understand.

So is it OK now?

Hidden

• Unit - Dies
• Conditions
  • Owner of dying unit is Player X
• Actions
  • Set MOBS_Region = Region X
  • Set MOBS_Group = Pick every unit in MOBS_Point matching Owner of the maching unit equal to Player X
  • Set MOBS_Count = Count living units in MOBS_Group
  • If then else do
    • conditions
      • Integer MOBS_Count is equal to 0
    • then do
      • Your actions
      • ===Try adding "Game Display to Players Integer MOBS_Count" these things help a lot===
    • Else do
  • Custom script: call DestroyGroup (udg_MOBS_Group)
  • Custom script: call RemoveRect (udg_MOBS_Region)

 

[Maker]

If you are creating the region when you set that variable, then yes. But you don't want to destroy pre-existing regions.

 

[shermellow]

What about if part of the units are created from other events? example as in the game. 4 magic runes activate tombs that summon skeletons and all the skeletons must be killed in order for the gate to open.