Probably by overlaying the transparent button with other transparent areas the alpha value becomes too small and reaches rounded 0. Pixi doesn't fire events if alpha is 0, hence the workaround with the very small numbers.
See button.js line 116 and 177 ff.
Sometimes no events are fired at a button when the style is set to "link". style: link sets the following values:
strokeAlpha: 0.000000001
strokeActiveAlpha: 0.00000000001
fillAlpha: 0.000000001
fillActiveAlpha: 0.000000001
Probably by overlaying the transparent button with other transparent areas the alpha value becomes too small and reaches rounded 0. Pixi doesn't fire events if alpha is 0, hence the workaround with the very small numbers.
See button.js line 116 and 177 ff.
skupke
Sometimes no events are fired at a button when the style is set to "link". style: link sets the following values:
strokeAlpha: 0.000000001
strokeActiveAlpha: 0.00000000001
fillAlpha: 0.000000001
fillActiveAlpha: 0.000000001
Probably by overlaying the transparent button with other transparent areas the alpha value becomes too small and reaches rounded 0. Pixi doesn't fire events if alpha is 0, hence the workaround with the very small numbers.
See button.js line 116 and 177 ff.