86 lines
2.2 KiB
JavaScript
Executable File
86 lines
2.2 KiB
JavaScript
Executable File
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var exports = (function() {
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var NoteQuota = function(cb) {
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this.cb = cb;
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this.setParams();
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this.resetPoints();
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};
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NoteQuota.PARAMS_LOBBY = {allowance: 200, max: 600};
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NoteQuota.PARAMS_NORMAL = {allowance: 400, max: 1200};
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NoteQuota.PARAMS_RIDICULOUS = {allowance: 600, max: 1800};
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NoteQuota.PARAMS_OFFLINE = {allowance: 8000, max: 24000, histLen: 3};
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NoteQuota.prototype.getParams = function() {
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return {
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m: "nq",
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allowance: this.allowance,
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max: this.max,
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histLen: this.histLen
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};
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};
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NoteQuota.prototype.setParams = function(params) {
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params = params || NoteQuota.PARAMS_OFFLINE;
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var allowance = params.allowance || this.allowance || NoteQuota.PARAMS_OFFLINE.allowance;
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var max = params.max || this.max || NoteQuota.PARAMS_OFFLINE.max;
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var histLen = params.histLen || this.histLen || NoteQuota.PARAMS_OFFLINE.histLen;
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if(allowance !== this.allowance || max !== this.max || histLen !== this.histLen) {
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this.allowance = allowance;
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this.max = max;
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this.histLen = histLen;
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this.resetPoints();
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return true;
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}
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return false;
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};
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NoteQuota.prototype.resetPoints = function() {
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this.points = this.max;
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this.history = [];
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for(var i = 0; i < this.histLen; i++)
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this.history.unshift(this.points);
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if(this.cb) this.cb(this.points);
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};
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NoteQuota.prototype.tick = function() {
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// keep a brief history
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this.history.unshift(this.points);
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this.history.length = this.histLen;
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// hook a brother up with some more quota
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if(this.points < this.max) {
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this.points += this.allowance;
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if(this.points > this.max) this.points = this.max;
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// fire callback
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if(this.cb) this.cb(this.points);
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}
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};
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NoteQuota.prototype.spend = function(needed) {
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// check whether aggressive limitation is needed
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var sum = 0;
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for(var i in this.history) {
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sum += this.history[i];
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}
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if(sum <= 0) needed *= this.allowance;
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// can they afford it? spend
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if(this.points < needed) {
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return false;
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} else {
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this.points -= needed;
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if(this.cb) this.cb(this.points); // fire callback
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return true;
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}
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};
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return NoteQuota;
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})();
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if(typeof module !== "undefined") {
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module.exports = exports;
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} else {
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this.NoteQuota = exports;
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}
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