Knockback actor the opposite direction where my mouse is

Development Character & Animation
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1

Hello, first of all my english is poor so if you don’t understand somewhere, pls ask me. I use topdown template and I am trying to figure out how to make an actor knock back when used ability or spell to the opposite direction from where my mouse or enemy is. I can do it only from some specific location but not entire world. And I don’t know why the more I take my mouse location away from actor, the more it look good. Actor get knocked forward whenever I place my mouse near him. This is my BP which I modified alittle from this thread Character knockback - Character & Animation - Unreal Engine Forums

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I’m not sure where am I wrong, I’m still new to UE4. Thank you in advance.

2

vectors are groups of 3 numbers.
a vector can represent a location or a direction.
impact point is a location.
the add impulse node wants a direction.

if you have two locations then you can find the direction from location A to location B using the get unit direction vector node.

impact point is fine for location A, location B is the actor location.

3

Thank you very much, It’s work very good. I have another question, can I add specific number of force? because my actor get knocked back far away if I place my mouse near it but move slightly when my mouse far from it.

4

yeah i just tried it out and for some reason the impulse knock back is inconsistent as you mentioned.
it works better if you don’t push it in the z axis for some reason.

Seems to work fine on a physics cube. there could be a bug with the character movement add impulse node, but I suspect I’m just missing something.

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5

I’m using your bp now, change impact point to location and tick velocity change in add impulse. And now everything look perfect! Thank you, you save me!