threejs-minecraft-44

//修改 index.js

function save( blob, filename ) {
    const url = URL.createObjectURL( blob );
    const link = document.createElement( 'a' );
    link.href = url;
    link.download = filename || 'data.json';
    link.style = 'display: none';
    document.body.appendChild( link );
    link.click();
    URL.revokeObjectURL( url );
    document.body.removeChild( link );
}

function saveArrayBuffer( buffer, filename ) {
    save( new Blob( [ buffer ], { type: 'application/octet-stream' } ), filename );
}

function saveString( text, filename ) {
    save( new Blob( [ text ], { type: 'text/plain' } ), filename );
}

const exportBtn = document.getElementById( 'export' );
exportBtn.addEventListener( 'click', function() {
    let output = scene.toJSON();
    output = JSON.stringify( output, null, '\t' );
    output = output.replace( /[\n\t]+([\d\.e\-\[\]]+)/g, '$1' );

    saveString( output, 'scene.json' );
});

// 修改 index.css

button#export {
    z-index: 10;
    position: absolute;
    left: 120px;
}

// 修改 index.html

<button type="button" id="export">Export</button>