Setting visible/invisible?

sparker

Hi guys,

trying to make an actor only visible when an attribute is of a certain value. Initially it is set to be not visible and that part works well. I have a rule created within the actor which says if the attribute equals what I want it to: (have tried both of these)
self.graphics.visible
and
self.graphics.visible = 1

Also curious, what syntax would I use to make it not visible again (as in via an action of the game, what would I set attribute rule to?

Sam

firemaplegames

You'll need to use Alpha instead of Visible.
The Visible Attribute cannot be changed at runtime.

So set the Actor's Alpha to 0 for invisible, or 1 for visible

StormyStudio

You can control the visibility by changing an attributes alpha level (its under colour in attributes, 0 = transparent).

Create a new attribute (an integer) called (graphic.visibiltiy) .. or something like that.

Then within an actor doesn't have to be the actual one you want made invisible, setup a rule,

if attribute graphic.visibility = 1 change attribute of your chosen graphic, alpha = 1

create another rule

if attribute graphic.visibility = 0 change attribute of chosen graphic, alpha = 0

Then to make it work with a button for example (a sort of toggle on off button)

Have another rule, put onto the button, if mouse button down, and mouse position inside. change attribute, graphic.visibility to (graphic.visibility+)%2

This way each time the button is pressed the graphic.visibility integer value will change from 1 and 0.

Hope that makes some sort of sense, only learning my way round GS still, but have been using lots of buttons in my first app idea so far.

sparker

Brilliant thanks guys - never heard of 'alpha' before so visible seemed like the obvious choice. My bad, game working as expected now

Sam

micah

heh, posted in wrong thread

Tris

As old as it is, this thread just saved me heaps of time. Thanks!

gyroscope

firemaplegames said:
The Visible Attribute cannot be changed at runtime.

If this is still true, 4 months on, I wonder what the point of Visible attribute is?

Edit: oh, I guess to toggle invisibility temporarily while editing only, I suppose.
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Spiral Gyro Games

charlieaf92

Is there any optimization or performance game by switching alpha to 0 like there is with turning off visible?

chosenonestudios

No the GE still has to render it and load it into memory wether you can see it or not, unfortunately.