How to spawn units in game

[emil23]

I never thought i would have to ask such question, i generaly know how to make spawn action you set location then do action and remove location.
the problem lies somewhere else, i got way too much units put in editor so i would like to make some of them being spawned in game. but in editor i can easily set their roation position and everything i would like to spawn unit for them in game to be in such formation, what can u recommend me?

also will i have to use regions? i would have to create like 200 regions for all units in game i think so its not good idea too

 

[Biglover]

If you wanna spawn in a formation I recommend using a loop. Sometimes a loop in a loop.

This trigger for example spawns one row of 3 units.

• Spawn
  • Events
    • Player - Player 1 (Red) issues Mouse Up event
  • Conditions
  • Actions
    • Set VariableSet ORIGINPOINT = (Mouse Position for Triggered Mouse Event)
    • Set VariableSet DIRECTION = 270.00
    • For each (Integer A) from 0 to 2, do (Actions)
      • Loop - Actions
        • Set VariableSet SPAWNPOINT = (ORIGINPOINT offset by (100.00 x (Real((Integer A)))) towards (DIRECTION + 90.00) degrees.)
        • Unit - Create 1 Footman for Player 1 (Red) at SPAWNPOINT facing DIRECTION degrees
        • Custom script: call RemoveLocation(udg_SPAWNPOINT)
    • Custom script: call RemoveLocation(udg_ORIGINPOINT)

By using the counter for the loop (Integer A) we can define spacing between the units.
(ORIGINPOINT offset by (100.00 x (Real((Integer A))))

The first iteration will spawn the unit in a place because 100 x 0 equals 0. In the next iteration its gonna be 100 x 1 which equals 100. The next unit is spawned with a distance of 100 from the first. And so it continues.

The direction is where theyre facing in the.. I dont know how to explain this in english. But the circle.
0 = Right
90 = Up
180 = Left
270 = Down

It is intervalbased so 0 = 360 = 720 and so on.

This means that when you take DIRECTION + 90 degrees we are suddenly not going the way the unit is facing but left of it. 0 = 360 = Right (left from our units pov)
In the same manner, + or - 180 would take you straight behind the unit.

By adding the loop to a loop you now not only expand by width but also by heigth!

• Spawn
  • Events
    • Player - Player 1 (Red) issues Mouse Up event
  • Conditions
  • Actions
    • Set VariableSet DIRECTION = 270.00
    • Set VariableSet ORIGINPOINT = (Mouse Position for Triggered Mouse Event)
    • For each (Integer B) from 0 to 1, do (Actions)
      • Loop - Actions
        • Set VariableSet ANCHORPOINT = (ORIGINPOINT offset by (100.00 x (Real((Integer B)))) towards (DIRECTION - 180.00) degrees.)
        • For each (Integer A) from 0 to 2, do (Actions)
          • Loop - Actions
            • Set VariableSet SPAWNPOINT = (ANCHORPOINT offset by (100.00 x (Real((Integer A)))) towards (DIRECTION + 90.00) degrees.)
            • Unit - Create 1 Footman for Player 1 (Red) at SPAWNPOINT facing DIRECTION degrees
            • Custom script: call RemoveLocation(udg_SPAWNPOINT)
        • Custom script: call RemoveLocation(udg_ANCHORPOINT)
    • Custom script: call RemoveLocation(udg_ORIGINPOINT)

Attached the test map I used. If anything is unclear, feel free to ask.

 

[Dr Super Good]

You can pre-place them in the editor, then during map initialization pick them all, add them to a spawn system and then remove them. This is how a lot of RPG maps do their creep respawn systems.

 

[emil23]

You can pre-place them in the editor, then during map initialization pick them all, add them to a spawn system and then remove them. This is how a lot of RPG maps do their creep respawn systems.

But still editor will count all the unit while saving? And thats my problem, i want to have less units pre placed for editor to work faster. But i need way to spawn them in same location as i pre placed them

 

[FeelsGoodMan]

But still editor will count all the unit while saving? And thats my problem, i want to have less units pre placed for editor to work faster. But i need way to spawn them in same location as i pre placed them

Do it with regions or points, then set the degrees at which they spawn manually.

 

[emil23]

Do it with regions or points, then set the degrees at which they spawn manually.

I saw option offset is it what you mean lol but i have noob question is it possible to somehow count place where they spawn or u gotta type blindly offset then test in game

 

[UreDe4D]

the editor shows the coordinates of your mouse in the bottom left, that should give you a pretty good feeling of how far apart you want them to be

 

[Biglover]

I expanded the test map to support pyramid formation so you have something to compare to. I left my first reply unedited since I modified the same test map.

• Spawn
  • Events
    • Player - Player 1 (Red) issues Mouse Up event
  • Conditions
  • Actions
    • Set VariableSet DIRECTION = 270.00
    • Set VariableSet ORIGINPOINT = (Mouse Position for Triggered Mouse Event)
    • For each (Integer B) from 0 to 2, do (Actions)
      • Loop - Actions
        • Set VariableSet ANCHORPOINT = (ORIGINPOINT offset by (100.00 x (Real((Integer B)))) towards (DIRECTION - 180.00) degrees.)
        • Unit - Create 1 Footman for Player 1 (Red) at ANCHORPOINT facing DIRECTION degrees
        • For each (Integer A) from 1 to (Integer B), do (Actions)
          • Loop - Actions
            • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
              • If - Conditions
                • (Integer B) Not equal to 0
              • Then - Actions
                • Set VariableSet SPAWNPOINT = (ANCHORPOINT offset by (100.00 x (Real((Integer A)))) towards (DIRECTION + 90.00) degrees.)
                • Unit - Create 1 Footman for Player 1 (Red) at SPAWNPOINT facing DIRECTION degrees
                • Custom script: call RemoveLocation(udg_SPAWNPOINT)
                • Set VariableSet SPAWNPOINT = (ANCHORPOINT offset by (100.00 x (Real((Integer A)))) towards (DIRECTION - 90.00) degrees.)
                • Unit - Create 1 Footman for Player 1 (Red) at SPAWNPOINT facing DIRECTION degrees
                • Custom script: call RemoveLocation(udg_SPAWNPOINT)
              • Else - Actions
                • Do nothing
        • Custom script: call RemoveLocation(udg_ANCHORPOINT)
    • Custom script: call RemoveLocation(udg_ORIGINPOINT)

 

[AbsolutePsycho]

You can place units in the Editor, then extract "war3map.j" file, find functions like CreateUnitsForPlayer0 and copy-paste the lines from there and paste to some trigger.
But it's kinda cancerous way of doing things. I would at least place them for, say, Player 23, or find some other way to "mark" them easily.

Example from 1.31.1

//===========================================================================
function CreateUnitsForPlayer0 takes nothing returns nothing
    local player p= Player(0)
    local unit u
    local integer unitID
    local trigger t
    local real life

    set u=CreateUnit(p, 'Hblm', - 416.1, - 225.0, 207.263)
    set u=CreateUnit(p, 'hfoo', - 662.1, - 538.8, 128.478)
    set u=CreateUnit(p, 'hpea', - 843.3, - 475.1, 308.593)
    set u=CreateUnit(p, 'hrif', - 781.5, - 298.8, 1.681)
endfunction

//===========================================================================
function CreateUnitsForPlayer1 takes nothing returns nothing
    local player p= Player(1)
    local unit u
    local integer unitID
    local trigger t
    local real life

    set u=CreateUnit(p, 'hrif', 492.9, - 769.6, 80.115)
    set u=CreateUnit(p, 'hfoo', 297.5, - 863.1, 198.276)
    set u=CreateUnit(p, 'Hpal', 436.0, - 909.2, 147.660)
    call SelectHeroSkill(u, 'AHhb')
endfunction

//===========================================================================
function CreatePlayerBuildings takes nothing returns nothing
endfunction

//===========================================================================
function CreatePlayerUnits takes nothing returns nothing
    call CreateUnitsForPlayer0()
    call CreateUnitsForPlayer1()
endfunction

//===========================================================================
function CreateAllUnits takes nothing returns nothing
    call CreatePlayerBuildings()
    call CreatePlayerUnits()
endfunction