Object that follows mouse position. How to properly do it with BP?

Development Programming & Scripting Blueprint
1

I try to make simple BP where my actor object will follow mouse position. So I’ve done it with the simple BP:

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but when I run it I get some “inverted” position of my actor. Why is it work like this?

2

Why MouseLocationToWorldSpace returns something different from really converted mouse location to world space?

3

How to fix this?

4

I’m no expert, but it may have something to do with you multiplying the world direction by the world location, in one of my games, I do something similar for a line trace to mouse position. I just do a "Get hit result under cursor, and get the location from the hit.

5

This works. I’m making a tower defense, and here’s what I have:

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6

Get HitResult almost works but what if you click two or more times in the same point? I have:

7

That’s simple, the first time you clicked, you clicked on the surface, the clicks after that were clicking on the sphere itself. The problem is that it doesn’t seem to have an ‘Actors to ignore’ input, so is it possible that you can turn off collision for the sphere? Maybe there is a collision option that just ignores line traces and ‘hits’?

8

But what if I want to drag and drop game Character? :slight_smile: I need a collision for it :slight_smile:
Is there a way to detect in Level Blueprint if mouse location currectly places on an Actor?

I applied Event: OnClicked (BallActorBP) - but it never calls in Level Blueprint.
But Event: OnBeginCursorOver (BallActorBP) - works. Why? :slight_smile:

9

I’m not sure, but I guess I’ve helped as much as I know how in this thread, hopefully someone can point you in the right direction as far as ignoring the sphere when getting result under cursor.