SC2Mapster

I am new to this site so you'll have to forgive me if this has already been covered. I did a search for about 5-10 min but didn't seem to find anything related to what I am wanting to do. If it has already been covered a link to the thread would be appreciated.

Here is my concept: I have a map divided into areas containing structures with upgrades (new structures allowing for new units as well as upgrades for units). What I am wanting to do to have two teams of three battling for control of these areas in order to get the units and upgrades they want/need to beat the other team. As they enter the areas they gain control of the structure and as long as they have a unit presence they will have control but as soon as the other team destroys all the their units in the area the control of the area will switch to the other team. I hope that makes sense. My thinking is that this will sort of be like a tug of war game with a twist (only the units will be controlled directly).

My problem is figuring out the triggers for this. Though, I have been messing with the editor for over a year now I am still relatively new to the triggers. Any help would be appreciated.

Use a trigger with 2 types of events: Unit Enters Region and Unit Leaves Region, setting "Unit" to the preset "Any Unit."

You don't necessarily have to use pre-placed regions to make this work, although it would probably be much simpler. I'm going to assume that's what you will want to do. Use a Unit Enters Region and a Unit Leaves Region event for each territory you want to be contestable.

Here's an example of what I mean so far:

Contest (Enter/Leave)
    Events
        Unit - Any Unit Enters Barracks1
        Unit - Any Unit Leaves Barracks1
        Unit - Any Unit Enters Gateway1
        Unit - Any Unit Leaves Gateway1
        Unit - Any Unit Enters SpawningPool1
        Unit - Any Unit Leaves SpawningPool1

Next you need to operate a switch based on the triggering region. You'll need a case for each region you have. Then it's just a matter of setting up the proper conditions and actions:

        General - Switch (Actions) depending on (Triggering region)
            Cases
                General - If (Barracks1)
                    Actions
                        Unit Group - Pick each unit in (Any units in Barracks1 owned by player Any Player matching Excluded: Structure, Missile, Dead, Hidden, with at most 1) and do (Actions)
                            Actions
                                General - If (Conditions) then do (Actions) else do (Actions)
                                    If
                                        (Number of Living units in (Units in Barracks1 having alliance Enemy with player (Owner of (Picked unit)) matching Excluded: Structure, Missile, Dead, Hidden, with at most Any Amount)) == 0
                                        (Owner of Barracks1Unit) != (Owner of (Picked unit))
                                    Then
                                        Unit - Change ownership of Barracks1Unit to player (Owner of (Picked unit)) and Change Color
                                        UI - Display "You tooked it overz LOLOLOL:):):)" for (Player group((Owner of (Picked unit)))) to Chat area
                                    Else
            Default

This code basically picks 1 random unit from within the region (excluding structures - that's very important) and checks to see if the owner of that unit has any enemies. If there are enemies, nothing happens. If not, the ownership of the structure changes to the owner of that unit and a message is displayed. Make sure you set it to "At Most 1" or it might cause lag with a lot of units present.

You'll also need a trigger to handle a unit death within a region, which will look almost the same with a few key changes:

Contest (Death)
    Events
        Unit - Any Unit dies
    Local Variables
    Conditions
    Actions
        General - If (Conditions) then do (Actions) else do (Actions)
            If
                ((Position of (Triggering unit)) is in Barracks1) == True
            Then
                Unit Group - Pick each unit in (Any units in Barracks1 owned by player Any Player matching Excluded: Structure, Missile, Dead, Hidden, with at most 1) and do (Actions)
                    Actions
                        General - If (Conditions) then do (Actions) else do (Actions)
                            If
                                (Number of Living units in (Units in Barracks1 having alliance Enemy with player (Owner of (Picked unit)) matching Excluded: Structure, Missile, Dead, Hidden, with at most Any Amount)) == 0
                                (Owner of Barracks1Unit) != (Owner of (Picked unit))
                            Then
                                Unit - Change ownership of Barracks1Unit to player (Owner of (Picked unit)) and Change Color
                                UI - Display "You tooked it overz LOLOLOL:):):)" for (Player group((Owner of (Picked unit)))) to Chat area
                                General - Break
                            Else
            Else

Here I use the Unit Dies event and an If/Then/Else function instead of a Switch function. This is because there isn't a simple function I can use when determining different cases for the switch. Anyway, you'll need to use a different If/Then/Else function for each territory. The trigger basically checks which region the dying unit is in and runs the same actions as the first trigger.

That should do it. Let me know if you have any further questions.

Was my response helpful? I'm thinking about making it into a mini-tutorial. Please let me know :)

@BasharTeg: Go

Sorry, for not responding months ago. I started on this custom game and then life got busy. But, now I am finally having some time to devote to this custom. I have not tried your triggers yet but I am going to do so either tonight or tomorrow. Not sure if you still want feedback on the triggers you posted so long after your response but I'll let you know how it works for me anyway. I really appreciate the effort you went to to helping me.

Thanks much,

-muse