Interface Alpha

types/phaser.d.ts:18037–18086

* Provides methods and properties for managing the alpha (opacity) of a Game Object. * Alpha values range from 0 (fully transparent) to 1 (fully opaque). * * Under WebGL, alpha can be set independently for each of the four corners of the * Game Ob

             * not be used directly.
             */
            interface Alpha {
                /**
                 * Clears all alpha values associated with this Game Object.
                 * 
                 * Immediately sets the alpha levels back to 1 (fully opaque).undefined
                 * @returns This Game Object instance.
                 */
                clearAlpha(): this;
                /**
                 * 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.
                 * @param topLeft 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. Default 1.
                 * @param topRight The alpha value used for the top-right of the Game Object. WebGL only.
                 * @param bottomLeft The alpha value used for the bottom-left of the Game Object. WebGL only.
                 * @param bottomRight The alpha value used for the bottom-right of the Game Object. WebGL only.
                 * @returns This Game Object instance.
                 */
                setAlpha(topLeft?: number, topRight?: number, bottomLeft?: number, bottomRight?: number): this;
                /**
                 * The alpha value of the Game Object, between 0 (fully transparent) and 1 (fully opaque).
                 * 
                 * This is a global value that impacts the entire Game Object. Setting it also updates
                 * all four corner alpha values (`alphaTopLeft`, `alphaTopRight`, `alphaBottomLeft`,
                 * `alphaBottomRight`) to the same value. The input is clamped to the range [0, 1].
                 */
                alpha: number;
                /**
                 * The alpha value starting from the top-left of the Game Object.
                 * This value is interpolated from the corner to the center of the Game Object.
                 */
                alphaTopLeft: number;
                /**
                 * The alpha value starting from the top-right of the Game Object.
                 * This value is interpolated from the corner to the center of the Game Object.
                 */
                alphaTopRight: number;
                /**
                 * The alpha value starting from the bottom-left of the Game Object.
                 * This value is interpolated from the corner to the center of the Game Object.
                 */
                alphaBottomLeft: number;
                /**
                 * The alpha value starting from the bottom-right of the Game Object.
                 * This value is interpolated from the corner to the center of the Game Object.
                 */
                alphaBottomRight: number;
            }

            /**
             * Provides methods used for setting the alpha property of a Game Object.