Gradual Transparency Changes

[PerrySteven]

Hello, I'm wondering how I can accomplish a gradual transparency change of an actor in Game Editor?

[simranjit]

If you mean how to smoothly change the transparency value of an actor during runtime, you can increase/decrease the transparency of an actor in the draw actor event controlled by appropriate script.
Use Actor variable 'transp'

From Script Reference:-
transp:The Actor'stransparency setting (0.0 - 1.0)

Use something like

Code: Select all

if (varX == 1)
{
Player.transp += 0.1;
}


[And hey guys I'm back]

[MrJolteon]

Code: Select all

if (varX == 1)
{
Player.transp += 0.1;
}


Or you can try

Code: Select all

while(Actor.transp != 1)
{
    Actor.transp += 0.1;
}

This should work in a Create Actor event.

[simranjit]

Yeah thats better if you want the actor to disappear smoothly.

[lcl]

Or you can try

Code: Select all

while(Actor.transp != 1)
{
    Actor.transp += 0.1;
}

This should work in a Create Actor event.

Using that code will freeze Game Editor.
while is a keyword that repeats the same code over and over again during the same frame as long as the condition is true. And transp, being a double variable, will never be exactly 1, so the condition is never false and so the frame the actor gets created will never end - in other words, the program will freeze.

[MrJolteon]

Using that code will freeze Game Editor.
while is a keyword that repeats the same code over and over again during the same frame as long as the condition is true. And transp, being a double variable, will never be exactly 1, so the condition is never false and so the frame the actor gets created will never end - in other words, the program will freeze.

Well I tried at least...

[lcl]

Well I tried at least...

Yes you did and it's a good thing.

[PerrySteven]

I tried what was suggested, but I didn't get to testing without coming up with compiler errors: Illegal Operations
So, I had one actor named intro, and in the code I tried to increment intro.transp but the compiler told me it was an illegal operation.
I think I have one idea I could try, perhaps to have a variable incrementation within one of the ChangeTransparency's function fields.

[lcl]

I tried what was suggested, but I didn't get to testing without coming up with compiler errors: Illegal Operations
So, I had one actor named intro, and in the code I tried to increment intro.transp but the compiler told me it was an illegal operation.
I think I have one idea I could try, perhaps to have a variable incrementation within one of the ChangeTransparency's function fields.

That's weird. Try it with an actor with a different name. It could be that the name 'intro' is reserved for something in Game Editor itself.

A code like this should work with any actor if put into Draw Actor. It will fade out the actor.

Code: Select all

myActor.transp += 0.05;

Edit: And welcome back, simranjit!

[PerrySteven]

I tried again with a different actor called "player", and this time it came up with no errors. But the game froze when I ran it.

[lcl]

I tried again with a different actor called "player", and this time it came up with no errors. But the game froze when I ran it.

What code you used? And what GE version are you using? My code should not freeze GE.

[Opium]

You guys are slow to extent that makes it seem rather amusing.

@OP
Click the actor you wish to go transparent and Add a Draw Actor event and select the Script Editor action.
And paste this code:

Code: Select all

transp += 0.01;

First off, the transp member variable per se is of dynamic type and it cannot go higher than 1. And that means the condition is redundant.
0.01 is the factor. If you want it faster, lower the value with say the half of it.

If you want to abort the transition disable the draw actor event of the actor from the Event Disable event or from some Script Editor.

You must elaborate what you mean by "changing" on the other side. What I show'd you is technically "changing", but it appears to be not so useful.
It may be useful to you, so it depends on information you didn't provide.

[PerrySteven]

You guys are slow to extent that makes it seem rather amusing.

@OP
Click the actor you wish to go transparent and Add a Draw Actor event and select the Script Editor action.
And paste this code:

Code: Select all

transp += 0.01;

First off, the transp member variable per se is of dynamic type and it cannot go higher than 1. And that means the condition is redundant.
0.01 is the factor. If you want it faster, lower the value with say the half of it.

If you want to abort the transition disable the draw actor event of the actor from the Event Disable event or from some Script Editor.

You must elaborate what you mean by "changing" on the other side. What I show'd you is technically "changing", but it appears to be not so useful.
It may be useful to you, so it depends on information you didn't provide.

Oh, I see. Well thanks for that information. I will try that out sometime. Also, I'm very slow to reply because I'm currently studying for my exams.

[Sarmad786]

You can do something like this
Global Code

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float GradualChange = 0.05;

Actor>DrawActor

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transp += GradualChange;
if(transp >=1)
  transp = 1;