Custom Scratch Block Maker

Create custom blocks for Scratch

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Custom Scratch Block Maker
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Create custom blocks for Scratch
// @author       You
// @match        https://scratch.mit.edu/projects/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Add a sidebar menu for custom blocks
    const sidebar = document.createElement('div');
    sidebar.id = 'custom-block-sidebar';
    sidebar.style.position = 'fixed';
    sidebar.style.top = '10px';
    sidebar.style.left = '10px';
    sidebar.style.backgroundColor = 'white';
    sidebar.style.border = '1px solid #ccc';
    sidebar.style.padding = '10px';
    sidebar.style.zIndex = '1000';

    const header = document.createElement('h3');
    header.innerText = 'Custom Scratch Block Maker';
    sidebar.appendChild(header);

    const blockNameLabel = document.createElement('label');
    blockNameLabel.innerText = 'Block Name: ';
    const blockNameInput = document.createElement('input');
    blockNameInput.type = 'text';
    sidebar.appendChild(blockNameLabel);
    sidebar.appendChild(blockNameInput);

    const blockCategoryLabel = document.createElement('label');
    blockCategoryLabel.innerText = 'Block Category: ';
    const blockCategoryInput = document.createElement('input');
    blockCategoryInput.type = 'text';
    sidebar.appendChild(blockCategoryLabel);
    sidebar.appendChild(blockCategoryInput);

    const createBlockButton = document.createElement('button');
    createBlockButton.innerText = 'Create Block';
    createBlockButton.onclick = function() {
        const blockName = blockNameInput.value;
        const blockCategory = blockCategoryInput.value;
        if (blockName && blockCategory) {
            addCustomBlock(blockName, blockCategory);
        }
    };
    sidebar.appendChild(createBlockButton);

    document.body.appendChild(sidebar);

    // Function to add the custom block to Scratch
    function addCustomBlock(blockName, blockCategory) {
        // Create the custom block element in the Scratch blocks menu
        const customBlock = document.createElement('block');
        customBlock.setAttribute('type', blockName);
        customBlock.setAttribute('category', blockCategory);

        // Add to Scratch's block palette
        const blockMenu = document.querySelector('.blocklyToolbox');
        const newBlockCategory = document.createElement('category');
        newBlockCategory.setAttribute('name', blockCategory);
        newBlockCategory.appendChild(customBlock);
        blockMenu.appendChild(newBlockCategory);

        // Map the block to Scratch's scripting area functionality (simplified)
        const blockly = window.Blockly;
        const blockDef = {
            init: function() {
                this.appendDummyInput()
                    .appendField(blockName);
                this.setColour(160);
                this.setOutput(true, null);
                this.setTooltip('Custom block');
                this.setHelpUrl('');
            }
        };

        blockly.Blocks[blockName] = blockDef;

        // Refresh the Scratch editor to show the new block
        blockly.selected = null;
        blockly.svgResize();
    }
})();