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buffer.js
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buffer.js
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class OsuStr{
constructor(b,s,l){
this.buf = b;
this.s = s;
this.l = l;
}
toString(){
return OsuStr.td.decode(this.buf.subarray(this.s,this.s+this.l));
}
valueOf(){
return this.toString();
}
}
OsuStr.td = new TextDecoder();
class buffer{
constructor(a){
this.ed = endianness();
let reader = new FileReader();
reader.onload = () => {
this.buffer = Object.freeze(reader.result);
this.buf = new Int8Array(this.buffer);
this.dv = Object.freeze(new DataView(this.buffer));
(this.onload ?? (()=>{})) ();
}
reader.readAsArrayBuffer(a, "UTF-8");
this.buffer = null;
this.dv = null;
this.i = 0;
}
parseOsuStr(i=this.i){
this.i = i;
let str = "";
if(this.parseByte() == 11){
let r = 0,
shift = 0,
byte;
do{
byte = this.parseByte();
r |= (byte & 127) << shift;
shift += 7;
}while((byte & 128) != 0);
str = new OsuStr(this.buf, this.i, r);
this.i += r;
}
return str;
}
parseLong(i=this.i){
this.i = i;
let r = this.dv.getBigInt64(i, this.ed);
this.i += 8;
return r;
}
parseInt(i=this.i){
this.i = i;
let r = this.dv.getInt32(i, this.ed);
this.i += 4;
return r;
}
parseShort(i=this.i){
this.i = i;
let r = this.dv.getInt16(i, this.ed);
this.i += 2;
return r;
}
parseByte(i=this.i){
this.i = i;
let r = this.dv.getInt8(i, this.ed);
this.i++;
return r;
}
parseBool(i=this.i){
this.i = i;
let r = !!this.dv.getInt8(i, this.ed);
this.i++;
return r;
}
parseDouble(i=this.i){
this.i = i;
let r = this.dv.getFloat64(i, this.ed);
this.i += 8;
return r;
}
parseFloat(i=this.i){
this.i = i;
let r = this.dv.getFloat32(i, this.ed);
this.i += 4;
return r;
}
}