phaser/src/gameobjects/components/Tint.js
2023-01-02 17:36:27 +00:00

231 lines
8 KiB
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2013-2023 Photon Storm Ltd.
* @license {@link https://opensource.org/licenses/MIT|MIT License}
*/
/**
* Provides methods used for setting the tint of a Game Object.
* Should be applied as a mixin and not used directly.
*
* @namespace Phaser.GameObjects.Components.Tint
* @webglOnly
* @since 3.0.0
*/
var Tint = {
/**
* The tint value being applied to the top-left vertice of the Game Object.
* This value is interpolated from the corner to the center of the Game Object.
* The value should be set as a hex number, i.e. 0xff0000 for red, or 0xff00ff for purple.
*
* @name Phaser.GameObjects.Components.Tint#tintTopLeft
* @type {number}
* @default 0xffffff
* @since 3.0.0
*/
tintTopLeft: 0xffffff,
/**
* The tint value being applied to the top-right vertice of the Game Object.
* This value is interpolated from the corner to the center of the Game Object.
* The value should be set as a hex number, i.e. 0xff0000 for red, or 0xff00ff for purple.
*
* @name Phaser.GameObjects.Components.Tint#tintTopRight
* @type {number}
* @default 0xffffff
* @since 3.0.0
*/
tintTopRight: 0xffffff,
/**
* The tint value being applied to the bottom-left vertice of the Game Object.
* This value is interpolated from the corner to the center of the Game Object.
* The value should be set as a hex number, i.e. 0xff0000 for red, or 0xff00ff for purple.
*
* @name Phaser.GameObjects.Components.Tint#tintBottomLeft
* @type {number}
* @default 0xffffff
* @since 3.0.0
*/
tintBottomLeft: 0xffffff,
/**
* The tint value being applied to the bottom-right vertice of the Game Object.
* This value is interpolated from the corner to the center of the Game Object.
* The value should be set as a hex number, i.e. 0xff0000 for red, or 0xff00ff for purple.
*
* @name Phaser.GameObjects.Components.Tint#tintBottomRight
* @type {number}
* @default 0xffffff
* @since 3.0.0
*/
tintBottomRight: 0xffffff,
/**
* The tint fill mode.
*
* `false` = An additive tint (the default), where vertices colors are blended with the texture.
* `true` = A fill tint, where the vertices colors replace the texture, but respects texture alpha.
*
* @name Phaser.GameObjects.Components.Tint#tintFill
* @type {boolean}
* @default false
* @since 3.11.0
*/
tintFill: false,
/**
* Clears all tint values associated with this Game Object.
*
* Immediately sets the color values back to 0xffffff and the tint type to 'additive',
* which results in no visible change to the texture.
*
* @method Phaser.GameObjects.Components.Tint#clearTint
* @webglOnly
* @since 3.0.0
*
* @return {this} This Game Object instance.
*/
clearTint: function ()
{
this.setTint(0xffffff);
return this;
},
/**
* Sets an additive tint on this Game Object.
*
* The tint works by taking the pixel color values from the Game Objects texture, and then
* multiplying it by the color value of the tint. You can provide either one color value,
* in which case the whole Game Object will be tinted in that color. Or you can provide a color
* per corner. The colors are blended together across the extent of the Game Object.
*
* To modify the tint color once set, either call this method again with new values or use the
* `tint` property to set all colors at once. Or, use the properties `tintTopLeft`, `tintTopRight,
* `tintBottomLeft` and `tintBottomRight` to set the corner color values independently.
*
* To remove a tint call `clearTint`.
*
* To swap this from being an additive tint to a fill based tint set the property `tintFill` to `true`.
*
* @method Phaser.GameObjects.Components.Tint#setTint
* @webglOnly
* @since 3.0.0
*
* @param {number} [topLeft=0xffffff] - The tint being applied to the top-left of the Game Object. If no other values are given this value is applied evenly, tinting the whole Game Object.
* @param {number} [topRight] - The tint being applied to the top-right of the Game Object.
* @param {number} [bottomLeft] - The tint being applied to the bottom-left of the Game Object.
* @param {number} [bottomRight] - The tint being applied to the bottom-right of the Game Object.
*
* @return {this} This Game Object instance.
*/
setTint: function (topLeft, topRight, bottomLeft, bottomRight)
{
if (topLeft === undefined) { topLeft = 0xffffff; }
if (topRight === undefined)
{
topRight = topLeft;
bottomLeft = topLeft;
bottomRight = topLeft;
}
this.tintTopLeft = topLeft;
this.tintTopRight = topRight;
this.tintBottomLeft = bottomLeft;
this.tintBottomRight = bottomRight;
this.tintFill = false;
return this;
},
/**
* Sets a fill-based tint on this Game Object.
*
* Unlike an additive tint, a fill-tint literally replaces the pixel colors from the texture
* with those in the tint. You can use this for effects such as making a player flash 'white'
* if hit by something. You can provide either one color value, in which case the whole
* Game Object will be rendered in that color. Or you can provide a color per corner. The colors
* are blended together across the extent of the Game Object.
*
* To modify the tint color once set, either call this method again with new values or use the
* `tint` property to set all colors at once. Or, use the properties `tintTopLeft`, `tintTopRight,
* `tintBottomLeft` and `tintBottomRight` to set the corner color values independently.
*
* To remove a tint call `clearTint`.
*
* To swap this from being a fill-tint to an additive tint set the property `tintFill` to `false`.
*
* @method Phaser.GameObjects.Components.Tint#setTintFill
* @webglOnly
* @since 3.11.0
*
* @param {number} [topLeft=0xffffff] - The tint being applied to the top-left of the Game Object. If not other values are given this value is applied evenly, tinting the whole Game Object.
* @param {number} [topRight] - The tint being applied to the top-right of the Game Object.
* @param {number} [bottomLeft] - The tint being applied to the bottom-left of the Game Object.
* @param {number} [bottomRight] - The tint being applied to the bottom-right of the Game Object.
*
* @return {this} This Game Object instance.
*/
setTintFill: function (topLeft, topRight, bottomLeft, bottomRight)
{
this.setTint(topLeft, topRight, bottomLeft, bottomRight);
this.tintFill = true;
return this;
},
/**
* The tint value being applied to the whole of the Game Object.
* This property is a setter-only. Use the properties `tintTopLeft` etc to read the current tint value.
*
* @name Phaser.GameObjects.Components.Tint#tint
* @type {number}
* @webglOnly
* @since 3.0.0
*/
tint: {
set: function (value)
{
this.setTint(value, value, value, value);
}
},
/**
* Does this Game Object have a tint applied?
*
* It checks to see if the 4 tint properties are set to the value 0xffffff
* and that the `tintFill` property is `false`. This indicates that a Game Object isn't tinted.
*
* @name Phaser.GameObjects.Components.Tint#isTinted
* @type {boolean}
* @webglOnly
* @readonly
* @since 3.11.0
*/
isTinted: {
get: function ()
{
var white = 0xffffff;
return (
this.tintFill ||
this.tintTopLeft !== white ||
this.tintTopRight !== white ||
this.tintBottomLeft !== white ||
this.tintBottomRight !== white
);
}
}
};
module.exports = Tint;