software.js

/*
 This file contains the logic for custom software programs
 that perform more complex actions than just displaying some text or HTML.

 You are invited to edit this file to define your own commands!
 Start by removing the demo ones that you don't need for your game.

 Remember that function names must match the names of the programs in software.json.
 */
/* eslint-disable no-inner-declarations, no-nested-ternary, no-sequences, no-unused-vars */

function decrypt( args ) { // The same function can be used to encode text
    if ( args.length === 0 ) {
        return "<p>Some encrypted text must be provided: <code>decrypt 53CR3T T3XT</code></p>";
    }
    const textInClear = rot13( args.join( " " ) );
    return `<p class="hack-reveal">${ textInClear }</p>`;
}
function rot13( s ) { // cf. https://en.wikipedia.org/wiki/ROT13
    return s.replace( /[a-zA-Z]/g, ( c ) => String.fromCharCode( ( c <= "Z" ? 90 : 122 ) >= ( c = c.charCodeAt( 0 ) + 13 ) ? c : c - 26 ) );
}

function identify() {
    const introMsg = [ "What is this?", `<img src="https://thisartworkdoesnotexist.com/?${ performance.now() }" style="width: 10rem; max-width: 100%;">` ];
    return { message: introMsg, onInput( answer ) {
        return `Wrong! This is not "${ answer }"`;
    } };
}

function artifact( args ) {
    if ( args.length === 0 ) {
        return [ "<p>An ID must be provided: <code>artifact $id</code></p>", `You currently have access to the following artifacts: ${ Object.keys( DWEETS ).join( " " ) }` ];
    }
    const artifactId = args[ 0 ];
    const artifactDweet = DWEETS[ artifactId ];
    if ( !artifactDweet ) {
        return `You do not have access to the artifact with ID ${ artifactId }`;
    }
    return artifactDweet();
}

const DWEETS = {
    888: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/888
        for ( let i = 0; i < 300; i++ ) {
            for ( let j = 0; j < 6; j++ ) {
                x.fillRect( 100 + 66 * C( i ) * S( T( t / 1.1 ) + j / i ), 100 + 66 * S( i ), 2, 2 );
            }
        }
    } ),
    1829: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/1829
        for ( let i = 16; i--; ) {
            x.ellipse( 100 + 60 * S( t + i * 0.1 ), 100 + 10 * C( t + i * 0.1 ), 32 * S( -i * 0.5 ) + 32, 10 * S( i * 0.1 ) + 1, 1.6 + 0.5 * S( t * 0.5 ), 9.5, 0, true );
            //         x,                           y,                           radiusX,                 radiusY,               rotation,                 startAngle, endAngle, counterclockwise
        }
        x.stroke();
    } ),
    1231: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/1231
        for ( let i = 9; i < 2e3; i += 2 ) {
            const s = 3 / ( 9.1 - ( t + i / 99 ) % 9 );
            x.beginPath();
            const j = i * 7 + S( i * 4 + t + S( t ) );
            x.lineWidth = s * s;
            x.arc( 100, 100, s * 49, j, j + 0.6 );
            x.stroke();
        }
    } ),
    10534: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/10534
        t += 160;
        let n;
        for ( let i = 2e3; i--; ) {
            const p = i & 1;
            const m = ( t / C( t / i ) + p * ( t / 2 + i % t ) ) / 5;
            const s = ( 3 - C( n ) * 3 ) / 3;
            x.fillRect( 100 + m * S( n = t / 9 + i * i ) * C( !p * i / t ), 100 + m * C( n + p * 2 ), s, s );
        }
    } ),
    5600: () => dweet( ( t, x, c ) => { // FROM: https://www.dwitter.net/d/5600
        const h = c.width;
        for ( let i = h; i--; ) {
            if ( C( t - i ) > 0 ) {
                x.fillText( ".⬤"[ "榁˜翻꺿듻ퟝ믭󫥤큰삗⢠挎ᩐ肦䰠椉䠊ᑒꊐࢀင
".charCodeAt( i / 16 ) >> i % 16 & 1 ], 192 + ( ( i * h - i * i ) ** 0.5 ) * S( t - i ) / 2, i / 2 + 9 );
            }
        }
    }, 432, 230 ),
    629: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/629
        const a = 629;
        for ( let i = a; i--; ) {
            const s = -15 / ( ( i + t * 60 ) % a );
            const X = a * S( i * 0.31 ) * s + 100;
            const Y = a * C( i * 0.3 ) * s + 100;
            x.fillRect( X, Y, s * 9, s * 9 );
            x.lineTo( X, Y );
        }
        x.stroke();
    } ),
    3822: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/3822
        for ( let i = 0; i < 999; i++ ) {
            x.fillStyle = R( i % 300, i % 255, i % 320 );
            x.fillRect( 100 + 50 * S( i + t ), 100 + 50 * S( i ) + T( t - i ), 3, 3 );
        }
    } ),
    6494: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/6494
        for ( let i = 64; i--; ) {
            x.setTransform( 1, 0, 0, 1, i % 8 * 100, ( i >> 3 ) * 60 );
            for ( let j = 99; j--; ) {
                x.fillRect( 40 + C( t + j / 4 ) * 20, 20 + S( j * i ) * 20, 2, 2 );
            }
        }
    }, 800, 402 ),
    4342: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/4342
        const v = t + 400;
        for ( let q = 255; q--; ) {
            x.fillStyle = R( q, q, q );
            x.beginPath();
            x.arc( 210 + C( v - q ) * ( v + q ) / 4, 110 + S( v - q ) * ( v - q ) / 4, 10, 0, 6.283, !1 );
            x.fill();
        }
    }, 420, 220 ),
    7495: () => dweet( ( t, x, c ) => { // FROM: https://www.dwitter.net/d/7495
        for ( let i = 16; i--; x.stroke() & x.drawImage( c, x.globalAlpha = 0.1, i ) ) {
            t += ( 7 - i ) % 2 / 0.64;
            const Z = ( t < 6 ) + 1 + C( t );
            x.lineTo( 200 + S( t ) * 100 / Z, 50 + ( ( i % 4 / 2 << 6 ) - 25 ) / Z );
        }
    }, 400 ),
    13326: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/13326
        for ( let i = 0; i < 2e3; ) {
            const F = 260 * ( t + 9 ) / i + S( i * i );
            const K = i++ ? S( i ) * 3 : 2e3;
            x.fillRect( i ? 400 + i * S( F ) : 0, i ? 150 + 0.1 * ( 2 * i * C( F ) + 2e4 / i ) : 0, K, K );
            x.fillStyle = R( 99 * i, 2 * i, i, i ? 1 : 0.4 );
        }
    }, 800, 300 ),
    7979: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/7979
        for ( let i = -9; ++i < 9; ) {
            let j;
            function R( a ) {
                const z = j - t % 1;
                x.lineTo( 150 + a * 99 / z, z + 90 + ( 99 + T( j + t & a + 9 | 8 ) + a * a ) / z );
            }
            for ( j = 12; x.beginPath( x.stroke() ), R( i ), --j; R( i + 1 ) ) {
                R( i );
            }
        }
    }, 300 ),
    20584: () => dweet( ( t, x ) => { // FROM: https://www.dwitter.net/d/20584
        const R = 48;
        for ( let i = 8064; i--; ) {
            const S = i % 97 - R;
            const T = i / 97 - R;
            const r = ( S * S + T * T ) ** 0.5;
            function z( n ) {
                return n-- && C( T / 2 + S * T / R + t * 9 ) * C( T / 4 - z( n ) * 2 ) - r / 6;
            }
            x.fillRect( S + 96, T + 54, C( Math.atan2( S, T, r ) * 9 ) * 20 - r & 44 && r > 36 ? r < 42 ? T / R : S / R : 1, r > 36 ? r < R : z( 3 ) / 5 );
        }
    }, 198, 100 )
};