summaryrefslogtreecommitdiff
path: root/BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java
diff options
context:
space:
mode:
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java')
-rw-r--r--BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java69
1 files changed, 0 insertions, 69 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java b/BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java
deleted file mode 100644
index 770d3a5..0000000
--- a/BJC-Utils2/src/main/java/bjc/utils/funcutils/NumberUtils.java
+++ /dev/null
@@ -1,69 +0,0 @@
-package bjc.utils.funcutils;
-
-import java.util.function.Function;
-
-/**
- * Utility functions for dealing with numbers
- *
- * @author ben
- *
- */
-public class NumberUtils {
- /**
- * Compute the falling factorial of a number
- *
- * @param value
- * The number to compute
- * @param power
- * The power to do the falling factorial for
- * @return The falling factorial of the number to the power
- */
- public static int fallingFactorial(final int value, final int power) {
- if (power == 0)
- return 1;
- else if (power == 1)
- return value;
- else {
- int result = 1;
-
- for (int currentSub = 0; currentSub < power + 1; currentSub++) {
- result *= value - currentSub;
- }
-
- return result;
- }
- }
-
- /**
- * Evaluates a linear probability distribution
- *
- * @param winning
- * The number of winning possibilities
- * @param total
- * The number of total possibilities
- * @param rng
- * The function to use to generate a random possibility
- * @return Whether or not a random possibility was a winning one
- */
- public static boolean isProbable(final int winning, final int total, final Function<Integer, Integer> rng) {
- return rng.apply(total) < winning;
- }
-
- /**
- * Check if a number is in an inclusive range.
- *
- * @param min
- * The minimum value of the range.
- *
- * @param max
- * The maximum value of the range.
- *
- * @param i
- * The number to check.
- *
- * @return Whether the number is in the range.
- */
- public static boolean between(final int min, final int max, final int i) {
- return i >= min && i <= max;
- }
-}