Phaser API Documentation

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setAlpha([topLeft], [topRight], [bottomLeft], [bottomRight])

Description:

Set the Alpha level of this Game Object. The alpha controls the opacity of the Game Object as it renders. Alpha values are provided as a float between 0, fully transparent, and 1, fully opaque.

If your game is running under WebGL you can optionally specify four different alpha values, each of which correspond to the four corners of the Game Object. Under Canvas only the topLeft value given is used.

Parameters:

name type arguments Default description
topLeft number <optional> 1

The alpha value used for the top-left of the Game Object. If this is the only value given it's applied across the whole Game Object.

topRight number <optional>

The alpha value used for the top-right of the Game Object. WebGL only.

bottomLeft number <optional>

The alpha value used for the bottom-left of the Game Object. WebGL only.

bottomRight number <optional>

The alpha value used for the bottom-right of the Game Object. WebGL only.

Returns:
Description:

This Game Object instance.

Examples:
Since: 3.0.0