Help with unit range...

[Jacker]

Help with unit-in-range trigger...

Hi, I'm wondering how to make it so if a unit-type comes near another unit-type class it will activate an event. Anyone know how?

 

[Yushatak]

Zomg lol it's u

Depending on what you're trying to do you probably don't need to find that type of thing.

You can use Unit - Unit Within Range if you have a specific unit to deal with, but if this is on a grand scale you'll likely want to use spells with spell range to trigger it, along with a triggered spell effect that checks unit type with a unit-type comparison condition.

 

[Taur]

Try and be more specific like what exactly are you trying to do this for, there are many ways to do it, but if you be more specific then the solution we give you can be more efficient.

 

[Yushatak]

I know him IRL, he's new to wc3 map editing so isnt used to postin' bout it yet.

 

[Ham Ham]

First, create 2 Point Variables.
Lets call them Attacker Position and Target Position.

Second, create a dummy unit with the damage that you wish to deal on the melee attack.
Set this unit's hit points to 3 with -1reg so it can be removed without triggers.
Also set it untargeteable.

• Events:
• Unit - An unit is attacked.
• Conditions:
• Unit type of Attacking Unit equal to Archer
• Actions:
• Variable - Set (Attacker Point) Position of attacking unit.
• Variable - Set (Target Position) Position of attacked unit.
• If Then Do else
  • Conditions:
  • If distance betwen Attacker Point and Target Position is lesser than or equal than 100.
  • Actions:
  • Move attacked unit to position of attacked unit (To prevent to use both attacks)
  • Create 1 Melee Dummy Attacker at position of attacking unit.
  • Order last created unit to attack attacked unit.

 

[Jacker]

Haha what a coincidence for you to pop in here Yush .

I thank you for your help Ham Ham, but I'm sorry I was not more specific. Basically I'm working on a project that will kind of be like Zeus: Master of Olympus for those who have played that game.

Basically, I'm working on the first system, the Immigration system.

You build a build called the 'Immigration Shipyard'

I have the trigger down for when it's created and you have more then one vacant house, then people will start moving to your city. However, I need to make it so when the Immigration Ship is in range of a Dock, it creates a Villager near said dock.

So Basically, if A Unit-Type comes near another Unit-Type something will happen.

 

[Eleandor]

How many immigration ships are in 1 map? are they created via triggers or already pre-made?

 

[Jacker]

They're created by triggers every 70 seconds.

 

[Eleandor]

If they're constantly created, I assume the previous "wave" will be removed when the next wave is created, is that right?

Assuming I'm right:

"Ships" is an empty unit group variable
"Shipyards" is an empty unit group variable
"TempShipyardGroup" is an empty unit group
" TempShipyard" is a unit variable

Trigger 1:
Events: every 70 seconds
Actions:
Unit group - pick every unit in "Ships" and do: remove picked unit from unit group
Create a "Ship" for "neutral" at "region 001"
Unit Group - Add last created unit to "Ships"

Trigger 2:
Events: unit finished constructing
Conditions: constructed unit type = Shipyard
Actions: Unit group - add last created unit to "Shipyards"

Trigger 3:
Events: a unit dies
conditions: unit type of dying unit = Shipyard
Actions: remove dying unit from "Shipyards"

Trigger 4:
Events: Every 1 seconds
Actions:
Pick every unit in "Ships" and do actions:
--- Set "TempShipyardGroup" = "Shipyards"
--- Loop : for each Integer A from 1 to (number of units in Shipyards) do actions:
------ Set "TempShipyard" = random unit in "TempUnitGroup"
------ Unit Group - remove "Tempshipyard" from "TempShipyardGroup"
------ If (real) range between Position of "Tempshipyard" and Position of "picked unit" = 200, Create a "Peasant" for owner of "Tempshipyard", else: do nothing.

The last trigger leaks 2 point variables and 1 unit group every second. I didn't include the custom scripts / variables because it's not up to me to fix leaks in your map.
The first trigger probably leaks a unit group too - not sure of that

I hope the trigger works, but I'm not sure if the loop works though

Note that if ships are destructible, you need to remove them from the 'Ships' unit group. Also note that every second the ship remains at the shipyard, a peasant will be created. Therefor it'd be useful to check if there are peasants near the shipyard, and if that's true, no new peasant should be created.

 

[Jacker]

That worked, much thanks! I'm going to be using this kind of trigger alot more then that so it's very useful.