Collision Event for Transparent Actor

[Bee-Ant]

Why if you set an actor's transparency to 1...it can't receive collision event???moreover physical response???

[Troodon]

Because it needs "visual" contact. Remember, transparent png's also doesn't collide.

To make invisible actor which can collide: create actor -> visibility state -> don't draw but allow events

[Bee-Ant]

I think that way just for "invisible-forever" actor...how about "invisible-forwhile" actor???

[Troodon]

well, you can use that in any event. For example:
collision -> any side of lizard -> visibility state -> don't draw but allow events
etc, etc

Because GE draws the actor again and again in automatic draw actor event. Well, not 100% automatic because there must be the "create actor in the beginnin" set.

[Bee-Ant]

Well, I wouldnt know the result before try it...thanks anyway...

[yttermayn]

I have found that if you want an invisible actor to collide, make it's transparency .99999 instead of 1.0. You can't see .99999, but it will collide.

[Hblade]

There are many ways to do this:
1, would be to stamp a wireframe on him then use that as the collision, 2 would be to "code" a collision box and when the player's X/Y reaches that box it sends a variable deactivating the players directional velocity.

[lcl]

Lol guys, this is 3 years old topic, I think Bee-Ant has already solved the problem.. xD

[Hblade]

Lol yeah

[157pl]

r u shure he may still need help he never said he got it to work

[savvy]

try setting the objects transparency to 0.9999999, that way it IS visible but hardly... it is so un-visible that you cant see it unless it is against a contrasting background... then its like a shadow... barely noticeable.

[Game A Gogo]

A 100% transparent actor is still visible.
Clone an invisible actor over it self many times, and change the BG color to white, you'll see what I mean. Yet, no events regarding interaction happens

[Bee-Ant]

Lol guys, this is 3 years old topic, I think Bee-Ant has already solved the problem.. xD

Indeed.
For everyone insist on help, thanks. But the problem already solved since Troodon posted his last reply, 3 years ago

A 100% transparent actor is still visible.
Clone an invisible actor over it self many times, and change the BG color to white, you'll see what I mean. Yet, no events regarding interaction happens

Indeed.
I got this when using ghost effect with canvas, in the bright colored background...
The square shape still visible, whereas I used erase(0,0,0,1); on the canvas that supposed to make it completely transparent...