Draw a line from actor's X,Y to mouse's X,Y

mza1979m

Is there a way I can have the game draw a straight line (even if it's dashed) from a given actor to the mouse's X,Y coordinates when the mouse button is held down? I'd also like the line to move as the mouse moves and to disappear when the mouse button is released. Think of a pool game as an example.
Fat chance?

mza1979m

Well... after playing around with it for a few minutes, the closest I could come to was:
When mouse is held down (on an invisible background),
Every 0.1 seconds, spawn actor2 (2 pixels X 2 pixels) at location of main actor1

In actor2, I have a "Move To" specifying movement towards mouse X,Y at default speed (300).
When actor2's X,Y = mouse X,Y: destroy actor2

That way, I have a constant stream of dots travelling at high speeds towards where the user clicks/touches, which simulates a line. It's not perfect but it's the best I could do.
But if someone has a better idea, I'd definitely be interested in hearing it.

AjBlue

i think you need to use vector to angle in the expression editor

tenrdrmer

Using the right math you should be able to have an actor move and grow with the rotation based on your mouse position. I of course do not know all of the math stuff so good luck with that. You idea sounds like it may work also but spawning like that has the potential to eat up your memory usage.

Hachiko

Done a little template now, should show you everything math side
http://www.megaupload.com/?d=0UGOU2QO

mza1979m

AjBlue & tenrdrmer, thanks so much for your help.
Hachiko, that's exactly what I needed. Thank you so much for taking the time.

allornothing

@Hachiko - this is a few months old, but the template you made was exactly what i needed to understand - thanks muchly!