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actually using (and rediscovering) the kdtree

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minjaesong
2019-04-18 23:42:54 +09:00
parent 62b687c86b
commit 5a95f1c21a
5 changed files with 111 additions and 44 deletions
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10
src/net/torvald/util/SortedArrayList.kt
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@@ -46,7 +46,15 @@ class SortedArrayList<T: Comparable<T>>(initialSize: Int = 10) {
fun iterator() = arrayList.iterator()
fun forEach(action: (T) -> Unit) = arrayList.forEach(action)
fun forEachIndexed(action: (Int, T) -> Unit) = arrayList.forEachIndexed(action)
//fun <R> map(transformation: (T) -> R) = arrayList.map(transformation)
fun <R> map(transformation: (T) -> R) = arrayList.map(transformation)
fun <R> filter(function: (T) -> Boolean): List<R> {
val retList = ArrayList<R>() // sorted-ness is preserved
this.arrayList.forEach { if (function(it)) retList.add(it as R) }
return retList
}
/**
* Select one unsorted element from the array and put it onto the sorted spot.