Periodic Unit Size Change

[BETA]

How do I periodically alter a unit's size through triggers? I want to imitate Invoker's EMP ability(DOTA2).

 

[Chaosy]

Use the time - event x seconds event.
use a real variable to keep track of the current size.
set size to real variable.

 

[KILLCIDE]

This library might be useful for you as well if you don't feel like coding it.

 

[BETA]

So it's like this?

Triggers

• EMP Main
  • Events
    • Unit - A unit starts the effect of an ability
  • Conditions
    • (Ability being cast) equal to Electromagnetic Pulse
  • Actions
    • Set TargetLoc = (Target point of ability being cast)
    • Set Real = 50.00
    • Unit - Create 1 EMPdummy for (Owner of Triggering unit) facing Default building facing degrees
    • Set EMPDummy = (Last created unit)
    • Set LoopCounter = 0
    • Custom script: call RemoveLocation(udg_TargetLoc)
    • Trigger - Turn on EMP Periodic

• EMP Periodic
  • Events
    • Time - Every 0.50 seconds of game time
  • Conditions
  • Actions
    • Animation - Change EMPDummy's size to (Real%, Real%, Real%) of its original size
    • Set Loopcounter = 10
    • If (Conditions) are true, Then(Actions) Else (Actions)
      • If - Conditions
        • Loopcounter is greater than 10
      • Then - Actions
        • Unit - Remove EMPDummy
      • Else - Actions
        • Trigger - Turn off this trigger

Edit: I'm staying away from JASS(Even though most of you say it's easier and faster)

 

[Kaijyuu]

The Set Loopcounter = 10 will make it go on forever. I think you meant Loopcounter = Loopcounter +1?

And yeah that will work but for only one unit at a time. A hacky way to do it (though it'll require local variables, which are a tiiiny bit of jass but not that much) is to give EMP Periodic no events, use a Run Trigger action to run EMP Periodic from EMP Main, and have EMP Periodic run itself again after a wait, until you don't want to run it anymore. Don't do that trick too much in your map though since excessive numbers of waits cause lag and are inaccurate.

 

[BETA]

I'm okay if it's for only one unit at a time.

So I'll just set my Loopcounter to this:

• Set Loopcounter = 0 + 10

By the way, the 10 is the number of instances the periodic event can fire before turning the trigger off(I think) and I should probably move the "Trigger - Turn off this trigger" inside the "Then - Actions"

 

[FUJI]

Increase the 'Real' variable by any value you want and 'Loopcounter' by 1 per interval so your desired condition will return a true statement.

 

[BETA]

So the Loopcounter in the Periodic trigger should be:

• Set Loopcounter = Loopcounter + 1

Sorry for bothering you, I can't understand if you explain it to me in a not simplified way or if not in a sample.

 

[FUJI]

Yes below the changing unit's size func and also the 'Real' variable to increase the EMP size.

• Set Real = Real + 50.00

^ It's size eventually grow in the looping trigger every interval.

Edit: Helping doesn't bothers me

 

[BETA]

Oh... Okay I get it. And should I change this:

• EMP Periodic
  • Actions
    • If-Conditions
      • Loopcounter greater than 0
    • Then - Actions
      • Unit - Remove EMPDummy
    • Else - Actions
      • Trigger - Turn off this trigger

To this:

• Emp Periodic
  • Actions
    • If-Conditions
      • Loopcounter greater than 0
    • Then - Actions
      • Unit - Remove EMPDummy
      • Trigger - Turn off this trigger
    • Else - Actions

Edit: Thanks for your help btw