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Merge branch 'master' into indev

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This commit is contained in:
Schuyler Cebulskie
2016-10-04 19:02:09 -04:00
parent 8d777db1d1 53f5c2cb52
commit 2c3c91fe41
1 changed files with 20 additions and 4 deletions
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24
src/util/Collection.js
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@@ -3,6 +3,16 @@
* @extends {Map}
*/
class Collection extends Map {
set(key, value) {
super.set(key, value);
this.changed = true;
}
delete(key) {
super.delete(key);
this.changed = true;
}
/**
* Returns an ordered array of the values of this collection.
* @returns {Array}
@@ -67,8 +77,11 @@ class Collection extends Map {
* @returns {*}
*/
random() {
const arr = this.array();
return arr[Math.floor(Math.random() * arr.length)];
if (!this.cachedArray || this.cachedArray.length !== this.size || this.changed) {
this.cachedArray = this.array();
this.changed = false;
}
return this.cachedArray[Math.floor(Math.random() * this.cachedArray.length)];
}
/**
@@ -77,8 +90,11 @@ class Collection extends Map {
* @returns {*}
*/
randomKey() {
const arr = this.keyArray();
return arr[Math.floor(Math.random() * arr.length)];
if (!this.cachedKeyArray || this.cachedKeyArray.length !== this.size || this.changed) {
this.cachedKeyArray = this.keyArray();
this.changed = false;
}
return this.cachedKeyArray[Math.floor(Math.random() * this.cachedKeyArray.length)];
}
/**