FlxBitmapText alpha not displaying as intended

[KnotUntied]

• Flixel version: 4.0.1
• OpenFL version: 3.6.1
• Lime version: 2.9.1
• Affected targets: Noted on Flash, so far

---

Code snippet reproducing the issue:

package;

import flixel.FlxState;

class PlayState extends FlxState
{
    override public function create():Void
    {
        var test1 = new FlxBitmapText(gmfont);
        test1.text = "WORLD";
        test1.x = 50;
        test1.y = 200;
        test1.alpha = 0;
        add(test1);

        var test2 = new FlxBitmapText(gmfont);
        test2.text = "WORLD";
        test2.x = 100;
        test2.y = 200;
        test2.alpha = 0.1;
        add(test2);

        var test3 = new FlxBitmapText(gmfont);
        test3.text = "WORLD";
        test3.x = 150;
        test3.y = 200;
        test3.alpha = 1;
        add(test3);
    }
}

---

Observed behavior:
test1 displays as expected, zero alpha, invisible. test3 also, one alpha, opaque. test2, however, is opaque, despite having an alpha of 0.1. (The same happens with values 0<x<1.)
Expected behavior:
Aforementioned bitmap texts should display with their respective alphas.

I will provide more details if inquired.

[Gama11]

Looks like I can reproduce this in the FlxBitmapText demo.

[KnotUntied]

Found the fix. Only reason I didn't bother doing a pull request is because it's a one-liner.

override private function set_alpha(value:Float):Float
{
    super.set_alpha(value); // This was forgotten, apparently.
    alpha = value;
    if (FlxG.renderBlit)
    {
        pendingTextBitmapChange = true;
    }
    return value;
}

[JoeCreates]

Any idea why the original alpha = value wasnt working?

[Gama11]

I think the assignment was working, it's probably more about the updateColorTransform(); call in super.