phaser/src/gameobjects/nineslice/NineSlice.js

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2022 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

var Class = require('../../utils/Class');
var GetFastValue = require('../../utils/object/GetFastValue');
var RenderTexture = require('../rendertexture/RenderTexture');

/**
 * @classdesc
 * TODO
 *
 * @class NineSlice
 * @extends Phaser.GameObjects.RenderTexture
 * @memberof Phaser.GameObjects
 * @constructor
 * @since 3.60.0
 *
 * @extends Phaser.GameObjects.Components.Alpha
 * @extends Phaser.GameObjects.Components.BlendMode
 * @extends Phaser.GameObjects.Components.ComputedSize
 * @extends Phaser.GameObjects.Components.Crop
 * @extends Phaser.GameObjects.Components.Depth
 * @extends Phaser.GameObjects.Components.Flip
 * @extends Phaser.GameObjects.Components.FX
 * @extends Phaser.GameObjects.Components.GetBounds
 * @extends Phaser.GameObjects.Components.Mask
 * @extends Phaser.GameObjects.Components.Origin
 * @extends Phaser.GameObjects.Components.Pipeline
 * @extends Phaser.GameObjects.Components.ScrollFactor
 * @extends Phaser.GameObjects.Components.Tint
 * @extends Phaser.GameObjects.Components.Transform
 * @extends Phaser.GameObjects.Components.Visible
 *
 * @param {Phaser.Scene} scene - The Scene to which this Game Object belongs. A Game Object can only belong to one Scene at a time.
 * @param {number} x - The horizontal position of this Game Object in the world.
 * @param {number} y - The vertical position of this Game Object in the world.
 * @param {(string|Phaser.Textures.Texture)} texture - The key, or instance of the Texture this Game Object will use to render with, as stored in the Texture Manager.
 * @param {(string|number)} [frame] - An optional frame from the Texture this Game Object is rendering with.
 */
var NineSlice = new Class({

    Extends: RenderTexture,

    initialize:

    function NineSlice (scene, x, y, width, height, slices)
    {
        RenderTexture.call(this, scene, x, y, width, height);

        this.type = 'NineSlice';

        this.create(slices);

        // this.setSizeToFrame();
    },

    create: function (slices)
    {
        var x = 0;
        var y = 0;
        var width = this.width;
        var height = this.height;
        var alpha = 1;
        var tint = 0xffffff;

        var textureManager = this.textureManager;

        var topLeft = textureManager.parseFrame(GetFastValue(slices, 'topLeft', null));
        var topBg = textureManager.parseFrame(GetFastValue(slices, 'topBackground', null));
        var topRight = textureManager.parseFrame(GetFastValue(slices, 'topRight', null));
        var leftBg = textureManager.parseFrame(GetFastValue(slices, 'left', null));
        var rightBg = textureManager.parseFrame(GetFastValue(slices, 'right', null));

        // var background = textureManager.parseFrame(GetFastValue(slices, 'background', null));

        var botLeft = textureManager.parseFrame(GetFastValue(slices, 'botLeft', null));
        var botBg = textureManager.parseFrame(GetFastValue(slices, 'botBackground', null));
        var botRight = textureManager.parseFrame(GetFastValue(slices, 'botRight', null));

        var topLeftPos = { x: x, y: y };
        var topRightPos = { x: x + width, y: y };
        var topPos = { x: x, y: y, w: width };
        var botLeftPos = { x: x, y: y + height };
        var botRightPos = { x: x + width, y: y + height };
        var botPos = { x: x, y: y + height, w: width };
        var leftPos = { x: x, y: y, h: height };
        var rightPos = { x: x + width, y: y, h: height };

        if (topLeft)
        {
            topPos.x += topLeft.width;
            topPos.w -= topLeft.width;
            leftPos.y += topLeft.height;
            leftPos.h -= topLeft.height;
        }

        if (topRight)
        {
            topRightPos.x -= topRight.width;
            topPos.w -= topRight.width;
            rightPos.y += topRight.height;
            rightPos.h -= topRight.height;
        }

        if (botBg)
        {
            botPos.y -= botBg.height;
        }

        if (botLeft)
        {
            botLeftPos.y -= botLeft.height;
            botPos.x += botLeft.width;
            botPos.w -= botLeft.width;
            leftPos.h -= botLeft.height;
        }

        if (botRight)
        {
            botRightPos.x -= botRight.width;
            botRightPos.y -= botRight.height;
            botPos.w -= botRight.width;
            rightPos.h -= botRight.height;
        }

        if (rightBg)
        {
            rightPos.x -= rightBg.width;
        }

        // console.log('topLeftPos', topLeftPos);
        // console.log('topRightPos', topRightPos);
        // console.log('topPos', topPos);
        // console.log('botLeftPos', botLeftPos);
        // console.log('botRightPos', botRightPos);
        // console.log('botPos', botPos);
        // console.log('leftPos', leftPos);
        // console.log('rightPos', rightPos);

        var stamp = this.resetStamp(alpha, tint);

        this.clear();

        this.beginDraw();

        //  None of these need cropping:

        if (topLeft)
        {
            stamp.setFrame(topLeft);

            this.drawGameObject(stamp, topLeftPos.x, topLeftPos.y);
        }

        if (topRight)
        {
            stamp.setFrame(topRight);

            this.drawGameObject(stamp, topRightPos.x, topRightPos.y);
        }

        if (botLeft)
        {
            stamp.setFrame(botLeft);

            this.drawGameObject(stamp, botLeftPos.x, botLeftPos.y);
        }

        if (botRight)
        {
            stamp.setFrame(botRight);

            this.drawGameObject(stamp, botRightPos.x, botRightPos.y);
        }

        //  These all use crop if they don't fit perfectly

        if (topBg)
        {
            this.repeat(topBg, null, topPos.x, topPos.y, topPos.w, topBg.height, alpha, tint, true);
        }

        if (leftBg)
        {
            this.repeat(leftBg, null, leftPos.x, leftPos.y, leftBg.width, leftPos.h, alpha, tint, true);
        }

        if (rightBg)
        {
            this.repeat(rightBg, null, rightPos.x, rightPos.y, rightBg.width, rightPos.h, alpha, tint, true);
        }

        if (botBg)
        {
            this.repeat(botBg, null, botPos.x, botPos.y, botPos.w, botBg.height, alpha, tint, true);
        }

        this.endDraw();

        return this;
    }

});

module.exports = NineSlice;