Robo wrote:
this is the extension code:

// This is a scripted coppercube action.

// It fades the whole screen to or from black, and executes an action after finished.

//
// The following embedded xml is for the editor and describes how the action can be edited:

// Supported types are: int, float, string, bool, color, vect3d, scenenode, texture, action


/*

<action jsname="action_FadeScreen" description="Fade the whole screen">

<property name="TimeToFade" type="int" default="500" />

<property name="Color" type="color" default="ff000000" />

<property name="FadeOut" type="bool" default="true" />

<property name="ActionWhenFinished" type="action" />

</action>

*/



action_FadeScreen = function()
{
};


// called when the action is executed
action_FadeScreen.prototype.execute = function(currentNode)


{
var me = this;

this.registeredFunction = function()
{ me.drawFadeScreenFunc();
};


ccbRegisterOnFrameEvent(this.registeredFunction);
this.startTime = (new Date()).getTime();

this.endTime = this.startTime + this.TimeToFade;


this.currentNode = currentNode;

}



// --------------------------------------------------------

// Implementation of the screen fading function



action_FadeScreen.prototype.drawFadeScreenFunc = function()


{
var me = this;


var now = (new Date()).getTime();

// calculate color


var alpha = (now - me.startTime) / (me.endTime - me.startTime);

alpha = alpha * 255.0;

if (alpha > 255) alpha = 255;

if (alpha < 0) alpha = 0;

if (!me.FadeOut) alpha = 255 - alpha;

var color = (alpha<<24) | (me.Color & 0x00ffffff);

// draw rectangle



ccbDrawColoredRectangle(color, 0, 0, ccbGetScreenWidth(), ccbGetScreenHeight());

// stop fading if end reached and run an action


if (now > me.endTime)

{

ccbUnregisterOnFrameEvent(this.registeredFunction);

ccbInvokeAction(me.ActionWhenFinished, me.currentNode);

}

}

Robo wrote:
Ok, well fading in instead of just switching on....interesting idea but sounds difficult.
What about using dynamic textures to change the png semi transparent texture over time ?

Or add a transparent texture and play with the black color emissive to go darker over time. Maybe that would work.

There is code on the forum how to do that, see announcements.