148 lines
No EOL
4.7 KiB
HTML
148 lines
No EOL
4.7 KiB
HTML
<!DOCTYPE html>
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<meta name="twitter:image" content="http://nycki.net/qrplay/qrplay-v3e-WiL-the-forest-chase.png">
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<meta property="og:image" content="http://nycki.net/qrplay/qrplay-v3e-WiL-the-forest-chase.png">
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<!--
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nycki's modified version of SArpnt's player (see /golf3.html)
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compatible with ZZM files or with a reduced instruction set for QR Alphanumeric efficiency.
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commands, case-insensitive
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ABCDEFG play note
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* or # sharp
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: or ! flat
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X rest
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P go one note length to the Past
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JTSIQHW set note length to sixtyfourth, Thirtytwoth, Sixteenth, eIghth, Quarter, Half, Whole. (persistent)
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. increase note length by 50% (persistent)
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3 divide note length by 3 (persistent)
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+ octave up (persistent)
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- octave down (persistent)
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R or \n reset note length and octave
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Vxx set volume
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Uxxx set bpm
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$x.../ set sample
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01245679 play sample
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ZZM mode
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comments begin with ; and metadata begins with $ (inside a comment)
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for instance:
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; $SONG TITLE 1 The Forest Chase
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QR Alphanumeric Mode
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0-9A-Z $%*+-./:
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no lowercase, no newline, limited punctuation.
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to convert, use R for reset, * for sharp, : for flat, /.../ for comment.
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Chords
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to play multiple notes at once, use P after each note to back up and play another one in parallel. to play multiple channels at once, convert each channel to a sample and use P after playing each sample.
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variable reference
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A: Audio context
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C: Command Character
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D: character after C, or other Data
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F: main Function, also object that holds samples
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G: Gain node
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H: textarea Html element
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I: Index into M
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J: lookahead (for sharps and flats)
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L: note Length
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M: Music text
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N: semitone Note offset (for octave changes)
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O: Oscillator node
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P: current time step
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Q: numeric command id
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S: find Sample
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T: note Time
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U: bpm
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W: realtime When the song starts
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-->
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<!--
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data:TEXT/HTML,<META%20NAME=VIEWPORT%20CONTENT=initial-scale=1><CENTER><P><A%20HREF=http://nycki.net/qrplay>qrplay%20v3f</A><br>by%20nycki%20and%20SArpnt</P><TEXTAREA%20ID=H%20STYLE=WIDTH:MIN(40EM,99%);HEIGHT:9LH></TEXTAREA><P><BUTTON%20onclick="H.A?.close();H.A=A=new%20AudioContext;W=Date.now();U=137;F=(M='',T=0,L,N,I=0,K=0,S=D=>D?S(D+(M[++I]==C)-(M[I]=='/')):I)=>{for(;C=M[I++];D=M[I],J=E=>E.indexOf(D)>=0,P=L/U*15/8,Q>25?K=!K:Q>23?(K=Q-24)||(L=N=4):K?0:Q>22?T-=P:Q>20?N-=C+12:Q>7?(Q-=9)?Q>9?L/=+C||2/3:Q>7?(D=D+M[++I,I++]|0)?Q>8?U=D+M[I++]:G=new%20GainNode(A,{gain:2**(D/5-11)}):0:L=~Q?1<<Q:(K=0,N=4):F[D]=M.slice(++I,S(1),I++):~Q?(O=new%20OscillatorNode(A,{type:%20'square',detune:100*(Q*2-(Q>3)-J('!:')+J('%23*')-N-7)}),Q&&O.connect(G),G.connect(A.destination),O.start(T),O.stop(T+=P)):C>'@'||1+C>1?(D=>setTimeout(_=>F(...D),1e3*D[1]-Date.now()+W-5e3,))([F[C],T+=P,L,N]):0)Q='XCDEFGABR$JTSIQHWVU3.-+P\n;/'.indexOf(C)},F('RV35'+H.value.toUpperCase())">%23play</BUTTON>%20<BUTTON%20onclick=H.A.close()>%23stop
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-->
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<!-- snip -->
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<META NAME=VIEWPORT CONTENT=initial-scale=1>
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<CENTER>
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<P><A HREF=http://nycki.net/qrplay>qrplay v3f</A><br>by nycki and SArpnt</P>
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<TEXTAREA ID=H STYLE=WIDTH:MIN(40EM,99%);HEIGHT:9LH>; $TITLE WiL Best :: Atrocity
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; $SONG TITLE 1 The Forest Chase
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S-A+EBAEAGEA+C-BGAE+C-GRS-DA+DEGF*DAGEDF*DCEF*RS-A+EBAEAGEA+C-BGAE+C-GRS-DA+DEGF*DAGEDF*DEGARS--G+G+BAGDBF*BGDF*GAB+CRSCG+CE-G+E-G+CD-G+CC-G+CD-GRS-F+CF+C-AFCFGCFACEFERS-EB+EFG*AB+CD*EFG*AB+FE
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</TEXTAREA><P>
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<BUTTON onclick="
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H.A?.close();
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H.A=A=new AudioContext;
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W=Date.now();
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U=137;
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F=(
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M='',
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T=0,
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L,
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N,
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I=0,
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K=0,
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S=D=>D?S(D+(M[++I]==C)-(M[I]=='/')):I
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)=>{for(;
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C=M[I++];
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D=M[I],
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J=E=>E.indexOf(D)>=0,
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P=L/U*15/8,
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// skip comments and reset on newline
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Q>25?K=!K:
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Q>23?(K=Q-24)||(L=N=4):
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K?0:
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// backspace
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Q>22?T-=P:
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// change octave
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Q>20?N-=C+12:
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Q>7?
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// DECREMENT Q, and then...
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(Q-=9)?
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// triplet or dotted rhythm, C is 3 or .
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Q>9?L/=+C||2/3:
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Q>7?
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// extended command. read two digits, then...
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(D=D+M[++I,I++]|0)?
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// set bpm (U)
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Q>8?U=D+M[I++]:
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// set volume (V)
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G=new GainNode(A,{gain:2**(D/5-11)}):
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0:
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// else, set length to...
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L=
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// fixed length (JTSIQHW)
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~Q?1<<Q:
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// reset L=N=4
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(K=0,N=4):
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// save sample ($x.../)
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F[D]=M.slice(++I,S(1),I++):
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~Q?(
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// play note or rest
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O=new OscillatorNode(A,{
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type: 'square',
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// !: are flat, #* are sharp
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detune:100*(Q*2-(Q>3)-J('!:')+J('#*')-N-7)
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}),
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Q&&O.connect(G),
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G.connect(A.destination),
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O.start(T),
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O.stop(T+=P)
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):
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// any unused non-whitespace letter or number
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C>'@'||1+C>1?(D=>setTimeout(
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// play a sample async
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_=>F(...D),
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// don't async too far ahead or you'll lag us out
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1e3*D[1]-Date.now()+W-5e3,
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))([F[C],T+=P,L,N]):
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// do nothing
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0
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)Q='XCDEFGABR$JTSIQHWVU3.-+P\n;/'.indexOf(C)},
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F('RV35'+H.value.toUpperCase())
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">#play</BUTTON> <BUTTON onclick=H.A.close()>#stop
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<!-- snip -->
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</BUTTON></P>
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<img src="qrplay-v3e-WiL-the-forest-chase.png">
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</center> |