GameObject.Vertex is a new micro class that encapsulates all of the data required for a single vertex, such as position, uv, color and alpha. This class is now created internally by the Mesh Game Object.

src/gameobjects/mesh/Vertex.js

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+/**
+ * @author       Richard Davey <rich@photonstorm.com>
+ * @copyright    2020 Photon Storm Ltd.
+ * @license      {@link https://opensource.org/licenses/MIT|MIT License}
+ */
+
+var Class = require('../../utils/Class');
+
+/**
+ * @classdesc
+ * A Vertex Game Object.
+ *
+ * This tiny class consists of all the information for a single vertex within a Mesh
+ * Game Object.
+ *
+ * @class Vertex
+ * @memberof Phaser.GameObjects
+ * @constructor
+ * @since 3.50.0
+ *
+ * @param {number} x - The x coordinate of this vertex.
+ * @param {number} y - The y coordinate of this vertex.
+ * @param {number} u - The UV u coordinate of this vertex.
+ * @param {number} v - The UV v coordinate of this vertex.
+ * @param {number} color - The color value of this vertex.
+ * @param {number} alpha - The alpha value of this vertex.
+ */
+var Vertex = new Class({
+
+    initialize:
+
+    function Vertex (x, y, u, v, color, alpha)
+    {
+        /**
+         * The x coordinate of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#x
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.x = x;
+
+        /**
+         * The y coordinate of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#y
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.y = y;
+
+        /**
+         * UV u coordinate of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#u
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.u = u;
+
+        /**
+         * UV v coordinate of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#v
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.v = v;
+
+        /**
+         * The color value of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#color
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.color = color;
+
+        /**
+         * The alpha value of this vertex.
+         *
+         * @name Phaser.GameObjects.Vertex#alpha
+         * @type {number}
+         * @since 3.50.0
+         */
+        this.alpha = alpha;
+    }
+
+});
+
+module.exports = Vertex;