58 lines
1.3 KiB
JavaScript
58 lines
1.3 KiB
JavaScript
|
function RateLimit(a,b){
|
||
|
|
this.a = b.a || 1;
|
||
|
|
this.m = b.m || 10;
|
||
|
|
this.mh = b.mh || 3;
|
||
|
|
this.setParams(a,{a:this.a,m:this.m,mh:this.mh});
|
||
|
|
this.resetPoints();
|
||
|
|
if(a !== null){
|
||
|
|
var self = this;
|
||
|
|
this.giveInt = setInterval(()=>{self.give()},a);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
RateLimit.prototype.setParams = function(a,b){
|
||
|
|
var a = b.a || this.a || 1;
|
||
|
|
var m = b.m || this.m || 5;
|
||
|
|
var mh = b.mh || this.mh || 3;
|
||
|
|
clearInterval(this.giveInt);
|
||
|
|
this.giveInt = undefined;
|
||
|
|
if(a !== this.a || m !== this.m || mh !== this.mh){
|
||
|
|
this.a = a;
|
||
|
|
this.m = m;
|
||
|
|
this.mh = mh;
|
||
|
|
this.resetPoints();
|
||
|
|
if(a !== null){
|
||
|
|
var self = this;
|
||
|
|
this.giveInt = setInterval(()=>{self.give()},a);
|
||
|
|
};
|
||
|
|
return true;
|
||
|
|
};
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
RateLimit.prototype.resetPoints = function(){
|
||
|
|
this.points = this.m;
|
||
|
|
this.history = [];
|
||
|
|
for(var i=0; i<this.mh; i++) this.history.unshift(this.points);
|
||
|
|
};
|
||
|
|
RateLimit.prototype.give = function(){
|
||
|
|
this.history.unshift(this.points);
|
||
|
|
this.history.length = this.mh;
|
||
|
|
if(this.points < this.m){
|
||
|
|
this.points += this.a;
|
||
|
|
if(this.points > this.m) this.points = this.m;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
RateLimit.prototype.spend = function(needed){
|
||
|
|
var sum = 0;
|
||
|
|
for(var i in this.history){
|
||
|
|
sum += this.history[i];
|
||
|
|
};
|
||
|
|
if(sum <= 0) needed *= this.a;
|
||
|
|
if(this.points < needed){
|
||
|
|
return false;
|
||
|
|
}else{
|
||
|
|
this.points -= needed;
|
||
|
|
return true;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = RateLimit;
|