28 lines
1.6 KiB
JavaScript
28 lines
1.6 KiB
JavaScript
// ZzFX - Zuper Zmall Zound Zynth - Micro Edition
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// MIT License - Copyright 2019 Frank Force
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// https://github.com/KilledByAPixel/ZzFX
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// This is a tiny build of zzfx with only a zzfx function to play sounds.
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// You can use zzfxV to set volume.
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// Feel free to minify it further for your own needs!
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'use strict';let zzfx,zzfxV,zzfxX
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// ZzFXMicro - Zuper Zmall Zound Zynth - v1.2.0 by Frank Force ~ 880 bytes
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zzfxV=.3 // volume
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zzfx= // play sound
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(p=1,k=.05,b=220,e=0,r=0,t=.1,q=0,D=1,u=0,y=0,v=0,z=0,l=0,E=0,A=0,F=0,c=0,w=1,m=
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0,B=0,M=Math,R=44100,d=2*M.PI,G=u*=500*d/R/R,C=b*=(1-k+2*k*M.random(k=[]))*d/R,g
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=0,H=0,a=0,n=1,I=0,J=0,f=0,x,h)=>{e=R*e+9;m*=R;r*=R;t*=R;c*=R;y*=500*d/R**3;A*=d
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/R;v*=d/R;z*=R;l=R*l|0;for(h=e+m+r+t+c|0;a<h;k[a++]=f)++J%(100*F|0)||(f=q?1<q?2<
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q?3<q?M.sin((g%d)**3):M.max(M.min(M.tan(g),1),-1):1-(2*g/d%2+2)%2:1-4*M.abs(M.
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round(g/d)-g/d):M.sin(g),f=(l?1-B+B*M.sin(d*a/l):1)*(0<f?1:-1)*M.abs(f)**D*zzfxV
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*p*(a<e?a/e:a<e+m?1-(a-e)/m*(1-w):a<e+m+r?w:a<h-c?(h-a-c)/t*w:0),f=c?f/2+(c>a?0:
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(a<h-c?1:(h-a)/c)*k[a-c|0]/2):f),x=(b+=u+=y)*M.cos(A*H++),g+=x-x*E*(1-1E9*(M.sin
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(a)+1)%2),n&&++n>z&&(b+=v,C+=v,n=0),!l||++I%l||(b=C,u=G,n||=1);p=zzfxX.
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createBuffer(1,h,R);p.getChannelData(0).set(k);b=zzfxX.createBufferSource();b.
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buffer=p;b.connect(zzfxX.destination);b.start();return b};zzfxX=new AudioContext;
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// fix compatibility issues with old web audio (optional)
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// if this is used, you must remove the zzfxX=new AudioContext line above!
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//zzfxX=new(AudioContext||webkitAudioContext);zzfxX.z=zzfxX.createBufferSource;zzfxX.createBufferSource=(s=zzfxX.z())=>(s.start=s.start||s.noteOn,s)
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