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designations.js
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designations.js
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class Designation{
constructor(value,tick,sub){
this.num = undefined;
if(value instanceof Array){
let n;
if(value.length>2){
n = value[1];
value[1] = zeroPad(n,2);
}else{
n = value[0];
value[0] = zeroPad(n,2);
}
this.value = value.join('');
if(typeof n === 'number') this.num = n;
}else this.value = value;
this.effectiveTicks = [tick];
this.hideTicks = [];
this.subBasin = sub || 0;
if(this.value instanceof LoadData) this.load(this.value);
}
isName(){
if(this.num===undefined) return true;
}
truncate(){
if(this.isName()){
return ({
'Alpha':'\u03B1',
'Beta':'\u03B2',
'Gamma':'\u03B3',
'Delta':'\u03B4',
'Epsilon':'\u03B5',
'Zeta':'\u03B6',
'Eta':'\u03B7',
'Theta':'\u03B8',
'Iota':'\u03B9',
'Kappa':'\u03BA',
'Lambda':'\u03BB',
'Mu':'\u03BC',
'Nu':'\u03BD',
'Xi':'\u03BE',
'Omicron':'\u03BF',
'Pi':'\u03C0',
'Rho':'\u03C1',
'Sigma':'\u03C3',
'Tau':'\u03C4',
'Upsilon':'\u03C5',
'Phi':'\u03C6',
'Chi':'\u03C7',
'Psi':'\u03C8',
'Omega':'\u03C9'
})[this.value] || this.value.slice(0,1);
}else return this.num + '';
}
activeAt(t){
let e;
let h;
for(let i=0;i<this.effectiveTicks.length;i++){
let n = this.effectiveTicks[i];
if(t>=n && (!e || n>e)) e = n;
}
for(let i=0;i<this.hideTicks.length;i++){
let n = this.hideTicks[i];
if(t>=n && (!h || n>h)) h = n;
}
if(e && (!h || e>h)) return e;
return false;
}
hide(t){
if(typeof t === 'number') this.hideTicks.push(t);
}
show(t){
if(typeof t === 'number') this.effectiveTicks.push(t);
}
save(){
let o = {};
for(let p of [
'value',
'num',
'effectiveTicks',
'hideTicks',
'subBasin'
]) o[p] = this[p];
return o;
}
load(data){
if(data instanceof LoadData){
let o = data.value;
for(let p of [
'value',
'num',
'subBasin'
]) this[p] = o[p];
for(let p of [
'effectiveTicks',
'hideTicks'
]) if(o[p]) this[p] = o[p];
if(o.effectiveTick) this.effectiveTicks.push(o.effectiveTick);
}
}
}
class DesignationSystem{
constructor(subBasin,data,opts){
this.subBasin = subBasin instanceof SubBasin && subBasin;
if(!opts) opts = {};
// if designations should be secondary instead of primary
this.secondary = opts.secondary;
this.numbering = {};
// set to false to disable numbering (prefixes and suffixes may still be used for numbered designations from a parent sub-basin)
this.numbering.enabled = opts.numEnable===undefined ? true : opts.numEnable;
// a prefix for numbered designations (e.g. "BOB" and "ARB")
this.numbering.prefix = undefined;
if(opts.prefix!==undefined) this.numbering.prefix = opts.prefix;
else if(this.numbering.enabled) this.numbering.prefix = '';
// a suffix for numbered designations (e.g. "L" and "E")
this.numbering.suffix = undefined;
if(opts.suffix!==undefined) this.numbering.suffix = opts.suffix;
else if(this.numbering.enabled){
if(opts.prefix!==undefined) this.numbering.suffix = '';
else this.numbering.suffix = DEPRESSION_LETTER;
}
// scale category threshold for numbering a system (defaults to tropical depression)
this.numbering.threshold = opts.numThresh===undefined ? 0 : opts.numThresh;
// behavior for primary designations of basin-crossing systems [may need more testing]
// 0 = always redesignate (use previous designation from this sub-basin if exists)
// 1 = strictly redesignate (use new designation even if a previous one from this sub-basin exists)
// 2 = redesignate regenerating systmes (keep designations of systems that retain TC status through the crossing; use previous designation if applicable)
// 3 = strictly redesignate regenerating systems (always use new designation for regenerating systems even if previous one exists)
// 4 = never redesignate (keep designations regardless of retaining TC status)
this.numbering.crossingMode = opts.numCross===undefined ? DESIG_CROSSMODE_ALWAYS : opts.numCross;
this.naming = {};
// main name lists to be used
this.naming.mainLists = [];
if(opts.mainLists instanceof Array) this.naming.mainLists = opts.mainLists;
// auxiliary lists to be used if the main list for a year is exhausted (only applicable to annual naming)
this.naming.auxiliaryLists = [];
if(opts.auxLists instanceof Array) this.naming.auxiliaryLists = opts.auxLists;
// lists to be used for automatic replacement of names on other lists [To Be Implemented]
this.naming.replacementLists = [];
if(opts.repLists instanceof Array) this.naming.replacementLists = opts.repLists;
// whether naming should be annual (Atl/EPac/SWIO/PAGASA) or continuous (WPac/CPac/Aus/etc.)
this.naming.annual = opts.annual;
// the year to anchor the cycle of annual lists to (this year will use the #0 (first) name list)
this.naming.annualAnchorYear = opts.anchor===undefined ? 1979 : opts.anchor;
// counter for continuous name assignment (only applicable to continuous naming)
this.naming.continuousNameIndex = opts.indexOffset || 0;
// scale category threshold for naming a system (defaults to tropical storm)
this.naming.threshold = opts.nameThresh===undefined ? 1 : opts.nameThresh;
// behavior for primary designations of basin-crossing systems (see above)
this.naming.crossingMode = opts.nameCross===undefined ? DESIG_CROSSMODE_STRICT_REGEN : opts.nameCross;
if(data instanceof LoadData) this.load(data);
}
getName(tick,year,index){
if(this.naming.mainLists.length<1) return undefined;
if(tick===undefined && this.subBasin) tick = this.subBasin.basin.tick;
let name;
if(this.naming.annual){
if(year===undefined && this.subBasin) year = this.subBasin.basin.getSeason(tick);
let y = year - this.naming.annualAnchorYear;
let m = this.naming.mainLists;
let numOfLists = m.length;
let i = (y%numOfLists+numOfLists)%numOfLists;
let l = m[i];
if(index===undefined) index = 0;
if(index>=l.length){
index -= l.length;
m = this.naming.auxiliaryLists;
i = 0;
let sum = 0;
while(i<m.length && index-sum >= m[i].length){
sum += m[i].length;
i++;
}
if(i>=m.length) return undefined;
index -= sum;
name = m[i][index];
}else name = l[index];
}else{
if(index===undefined) index = 0;
let m = this.naming.mainLists;
let i = 0;
let sum = 0;
while(i<m.length && index-sum >= m[i].length){
sum += m[i].length;
i++;
}
if(i>=m.length){
index = 0;
i = 0;
}else index -= sum;
name = m[i][index];
}
return new Designation(name,tick,this.subBasin ? this.subBasin.id : 0);
}
getNewName(){
if(this.subBasin){
let sb = this.subBasin;
let basin = sb.basin;
let t = basin.tick;
let y = basin.getSeason(t);
let season = basin.fetchSeason(y,false,true);
let i;
if(this.naming.annual) i = season.stats(sb.id).designationCounters.name++;
else{
i = this.naming.continuousNameIndex++;
let totalLength = 0;
for(let l of this.naming.mainLists) totalLength += l.length;
if(this.naming.continuousNameIndex>=totalLength) this.naming.continuousNameIndex = 0;
}
return this.getName(t,y,i);
}
return undefined;
}
getNum(tick,index,altPre,altSuf){
let pre = this.numbering.prefix;
let suf = this.numbering.suffix;
if(altPre!==undefined) pre = altPre;
if(altSuf!==undefined) suf = altSuf;
let num = [pre,index,suf];
return new Designation(num,tick,this.subBasin ? this.subBasin.id : 0);
}
getNewNum(altPre,altSuf){
if(this.subBasin){
let sb = this.subBasin;
let basin = sb.basin;
let t = basin.tick;
let season = basin.fetchSeason(t,true,true);
let i = ++season.stats(sb.id).designationCounters.number; // prefix increment because numbering starts at 01
let numDesig = this.getNum(t,i,altPre,altSuf);
return numDesig;
}
return undefined;
}
save(){
let d = {};
d.secondary = this.secondary;
let numg = d.numbering = {};
let namg = d.naming = {};
let Numg = this.numbering;
let Namg = this.naming;
for(let p of [
'enabled',
'prefix',
'suffix',
'threshold',
'crossingMode'
]) numg[p] = Numg[p];
for(let p of [
'mainLists',
'auxiliaryLists',
'replacementLists',
'annual',
'annualAnchorYear',
'continuousNameIndex',
'threshold',
'crossingMode'
]) namg[p] = Namg[p];
return d;
}
load(data){
if(data instanceof LoadData){
let d = data.value;
this.secondary = d.secondary;
let Numg = this.numbering;
let Namg = this.naming;
let numg = d.numbering;
let namg = d.naming;
for(let p of [
'enabled',
'prefix',
'suffix',
'threshold'
]) Numg[p] = numg[p];
Numg.crossingMode = numg.crossingMode || 0;
for(let p of [
'mainLists',
'auxiliaryLists',
'replacementLists',
'annual',
'annualAnchorYear',
'continuousNameIndex',
'threshold'
]) Namg[p] = namg[p];
Namg.crossingMode = namg.crossingMode===undefined ? 3 : namg.crossingMode;
for(let i=Namg.auxiliaryLists.length-1;i>=0;i--){
let a = Namg.auxiliaryLists[i];
if(a.length===1 && a[0]==="Unnamed") Namg.auxiliaryLists.splice(i,1);
}
if(data.format<FORMAT_WITH_SCALES){ // convert thresholds from pre-v0.2 values
Numg.threshold = Scale.convertOldValue(Numg.threshold);
Namg.threshold = Scale.convertOldValue(Namg.threshold);
}
}
}
static convertFromOldNameList(list){
let annual = list[0] instanceof Array;
let main = [];
let aux = [];
if(annual){
for(let i=0;i<list.length-1;i++) main.push(JSON.parse(JSON.stringify(list[i])));
let auxlist = list[list.length-1];
if(auxlist && auxlist[0]!=="Unnamed") aux.push(JSON.parse(JSON.stringify(auxlist)));
}else main.push(JSON.parse(JSON.stringify(list)));
return new DesignationSystem(undefined,undefined,{
mainLists: main,
auxLists: aux,
annual: annual
});
}
}