a unit comes close to another unit then knock the unit away

[wc3andIlikei]

I would like some help with a trigger that does so when a unit come close to another unit it knocks the unit backwards(or from the direction the unit comes from). Hope you understand what I mean-> :nuts:

 

[Larcenist]

Does this apply to when a unit comes withing X range of any unit, or just a specific unit?

 

[warden13]

Like tha floating units?

 

[wc3andIlikei]

Any unit if thats possible

 

[Sinan2]

You could try knockback tutorials, which describes what you're looking for.

 

[wc3andIlikei]

They I found where spells that knocked em back, I was looking for a trigger that knocked the unit when an enemy unit comes within range. Trying to make some seige engines try to knock eachother into a hole.

 

[Larcenist]

Are the siege engines preset on the map or do they spawn occasionally?

 

[wc3andIlikei]

preset

 

[Kazuga]

I made this ability for around 2 weeks ago for my hero arena, it drags a unit to your loaction (with chain lightning as base spell, also by this the chain lightning looks like a energy beam that drags him). Once he's at your location you knock him up in the air and back again from where he came from, (notice that this is the only part that can get wrong in my trigger, he might be knocked in a diffren location).

Anyway here is the triggers:

Spoiler

DragKnock
    Events
        Unit - A unit Starts the effect of an ability
    Conditions
        (Ability being cast) Equal to DragKnock 
    Actions
        Set DragKnockCaster = (Casting unit)
        Set DragKnockCasterTarget = (Target unit of ability being cast)
        Set DragKnockAngle = (Angle from (Position of DragKnockCasterTarget) to (Position of DragKnockCaster))
        Unit - Pause DragKnockCasterTarget
        Trigger - Turn on Drag <gen>
        Animation - Change DragKnockCaster's animation speed to 5.00% of its original speed
        Animation - Play DragKnockCaster's attack animation
        Trigger - Run Anti dragstuck <gen> (checking conditions)

Drag
    Events
        Time - Every 0.03 seconds of game time
    Conditions
    Actions
        Set DragKnockPoint = ((Position of DragKnockCasterTarget) offset by 50.00 towards DragKnockAngle degrees)
        Set DragKnockpoint = (Distance between (Position of DragKnockCaster) and (Position of DragKnockCasterTarget))
        Unit - Move DragKnockCasterTarget instantly to DragKnockPoint
        If (All Conditions are True) then do (Then Actions) else do (Else Actions)
            If - Conditions
                DragKnockpoint Less than or equal to 100.00
            Then - Actions
                Trigger - Run Knock animation <gen> (ignoring conditions)
                Trigger - Turn off (This trigger)
            Else - Actions
        Custom script:   call RemoveLocation (udg_DragKnockPoint)

Knock animation
    Events
    Conditions
    Actions
        Unit - Make DragKnockCaster face DragKnockCasterTarget over 0.00 seconds
        Unit - Pause DragKnockCaster
        Sound - Play HeroBladeMasterYesAttack2 <gen> at 100.00% volume, attached to DragKnockCaster
        Unit - Cause DragKnockCaster to damage DragKnockCasterTarget, dealing 250.00 damage of attack type Chaos and damage type Normal
        Animation - Play DragKnockCaster's attack animation
        Unit - Make DragKnockCaster face DragKnockCasterTarget over 0.00 seconds
        Set DragKnockAngle = (Angle from (Position of DragKnockCaster) to (Position of DragKnockCasterTarget))
        Unit - Unpause DragKnockCaster
        Animation - Change DragKnockCaster's animation speed to 100.00% of its original speed
        Trigger - Turn on Knock <gen>
        Trigger - Run Anti knockstuck <gen> (checking conditions)
        Trigger - Turn off (This trigger)

Knock
    Events
        Time - Every 0.03 seconds of game time
    Conditions
    Actions
        Unit - Add Storm Crow Form to DragKnockCasterTarget
        Unit - Remove Storm Crow Form from DragKnockCasterTarget
        Animation - Change DragKnockCasterTarget flying height to ((Current flying height of DragKnockCasterTarget) + 300.00) at 0.00
        Set DragKnockPoint = ((Position of DragKnockCasterTarget) offset by 50.00 towards DragKnockAngle degrees)
        Unit - Move DragKnockCasterTarget instantly to DragKnockPoint
        Animation - Change DragKnockCasterTarget flying height to 0.00 at 300.00
        If (All Conditions are True) then do (Then Actions) else do (Else Actions)
            If - Conditions
                (Distance between (Position of DragKnockCaster) and (Position of DragKnockCasterTarget)) Greater than or equal to 600.00
            Then - Actions
                Unit - Unpause DragKnockCasterTarget
                Trigger - Turn off (This trigger)
            Else - Actions

Hope this helped .
If you have any questions or if this didn't help please say so, so that I can help you further (if I now handle the power that is required ).

 

[Larcenist]

Then you can keep track of the units by doing something like this:

First Trigger:

Events
Elapsed game time is 1 second

Conditions

Actions
set bj_wantDestroyGroup = true
Pick every units in playable map area matching unit-type of (matching unit) equal to siege engine and do actions
 Loop
 set EngineCount = EngineCount + 1
 set Engine[EngineCount] = picked unit
 Add to Second Trigger <gen> the event A unit gets within X range of Engine[EngineCount]

Second Trigger:

Events

Conditions

Actions
// set all variables and then add an event for Third Trigger <gen> to activate the knockback.

Third Trigger:

This is a knockback trigger, just experiment your way to it.

Edit: No idea if this'll work though, never tried it myself.