renamed mod to SkyHanni

1 files changed, 152 insertions, 0 deletions

diff --git a/src/main/java/at/hannibal2/skyhanni/utils/NumberUtil.kt b/src/main/java/at/hannibal2/skyhanni/utils/NumberUtil.kt
new file mode 100644
index 000000000..891826a91
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/utils/NumberUtil.kt
@@ -0,0 +1,152 @@
+package at.hannibal2.skyhanni.utils
+
+import java.text.NumberFormat
+import java.util.*
+import kotlin.math.pow
+import kotlin.math.roundToInt
+
+object NumberUtil {
+    @JvmField
+    val nf: NumberFormat = NumberFormat.getInstance(Locale.US)
+    private val suffixes = TreeMap<Long, String>().apply {
+        this[1000L] = "k"
+        this[1000000L] = "M"
+        this[1000000000L] = "B"
+        this[1000000000000L] = "T"
+        this[1000000000000000L] = "P"
+        this[1000000000000000000L] = "E"
+    }
+    private val romanSymbols = TreeMap(
+        mapOf(
+            1000 to "M",
+            900 to "CM",
+            500 to "D",
+            400 to "CD",
+            100 to "C",
+            90 to "XC",
+            50 to "L",
+            40 to "XL",
+            10 to "X",
+            9 to "IX",
+            5 to "V",
+            4 to "IV",
+            1 to "I",
+        )
+    )
+
+    /**
+     * This code was unmodified and taken under CC BY-SA 3.0 license
+     * @link https://stackoverflow.com/a/30661479
+     * @author assylias
+     */
+    @JvmStatic
+    fun format(value: Number): String {
+        @Suppress("NAME_SHADOWING")
+        val value = value.toLong()
+        //Long.MIN_VALUE == -Long.MIN_VALUE so we need an adjustment here
+        if (value == Long.MIN_VALUE) return format(Long.MIN_VALUE + 1)
+        if (value < 0) return "-" + format(-value)
+        if (value < 1000) return value.toString() //deal with easy case
+        val (divideBy, suffix) = suffixes.floorEntry(value)
+        val truncated = value / (divideBy / 10) //the number part of the output times 10
+        val hasDecimal = truncated < 100 && truncated / 10.0 != (truncated / 10).toDouble()
+        return if (hasDecimal) (truncated / 10.0).toString() + suffix else (truncated / 10).toString() + suffix
+    }
+
+    @JvmStatic
+    fun unformat(value: String): Long {
+        val suffix = value.filter { !it.isDigit() }.lowercase()
+        val num = value.filter { it.isDigit() }.toLong()
+        return num * (suffixes.entries.find { it.value.lowercase() == suffix }?.key ?: 1)
+    }
+
+    /**
+     * This code was unmodified and taken under CC BY-SA 3.0 license
+     * @link https://stackoverflow.com/a/22186845
+     * @author jpdymond
+     */
+    fun Double.roundToPrecision(precision: Int): Double {
+        val scale = 10.0.pow(precision).toInt()
+        return (this * scale).roundToInt().toDouble() / scale
+    }
+
+    /**
+     * This code was unmodified and taken under CC BY-SA 3.0 license
+     * @link https://stackoverflow.com/a/22186845
+     * @author jpdymond
+     */
+    fun Float.roundToPrecision(precision: Int): Float {
+        val scale = 10.0.pow(precision).toInt()
+        return (this * scale).roundToInt().toFloat() / scale
+    }
+
+    fun Number.addSuffix(): String {
+        val long = this.toLong()
+        if (long in 11..13) return "${this}th"
+        return when (long % 10) {
+            1L -> "${this}st"
+            2L -> "${this}nd"
+            3L -> "${this}rd"
+            else -> "${this}th"
+        }
+    }
+
+    /**
+     * This code was converted to Kotlin and taken under CC BY-SA 3.0 license
+     * @link https://stackoverflow.com/a/9073310
+     */
+    fun String.romanToDecimal(): Int {
+        var decimal = 0
+        var lastNumber = 0
+        val romanNumeral = this.uppercase()
+        for (x in romanNumeral.length - 1 downTo 0) {
+            when (romanNumeral[x]) {
+                'M' -> {
+                    decimal = processDecimal(1000, lastNumber, decimal)
+                    lastNumber = 1000
+                }
+                'D' -> {
+                    decimal = processDecimal(500, lastNumber, decimal)
+                    lastNumber = 500
+                }
+                'C' -> {
+                    decimal = processDecimal(100, lastNumber, decimal)
+                    lastNumber = 100
+                }
+                'L' -> {
+                    decimal = processDecimal(50, lastNumber, decimal)
+                    lastNumber = 50
+                }
+                'X' -> {
+                    decimal = processDecimal(10, lastNumber, decimal)
+                    lastNumber = 10
+                }
+                'V' -> {
+                    decimal = processDecimal(5, lastNumber, decimal)
+                    lastNumber = 5
+                }
+                'I' -> {
+                    decimal = processDecimal(1, lastNumber, decimal)
+                    lastNumber = 1
+                }
+            }
+        }
+        return decimal
+    }
+
+    fun Int.toRoman(): String {
+        if (this <= 0) error("$this must be positive!")
+        val l = romanSymbols.floorKey(this)
+        return if (this == l) {
+            romanSymbols[this]!!
+        } else romanSymbols[l] + (this - l).toRoman()
+    }
+
+    private fun processDecimal(decimal: Int, lastNumber: Int, lastDecimal: Int): Int {
+        return if (lastNumber > decimal) {
+            lastDecimal - decimal
+        } else {
+            lastDecimal + decimal
+        }
+    }
+}
\ No newline at end of file