From da96d846ebdfe8f9610235696a2783a99f0a6a9c Mon Sep 17 00:00:00 2001
From: Hykilpikonna <admin@moecraft.cc>
Date: Sun, 20 Oct 2019 19:11:22 -0400
Subject: [PATCH] [+] Create function to compare version numbers

---
 src/utils/version-utils.ts | 39 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/utils/version-utils.ts b/src/utils/version-utils.ts
index b379a66..ee2ce5e 100644
--- a/src/utils/version-utils.ts
+++ b/src/utils/version-utils.ts
@@ -1,4 +1,41 @@
 export default class VersionUtils
 {
-    
+    /**
+     * Compare two version numbers
+     *
+     * Eg.
+     *   compare('0.1.2', '0.1.3') = -1
+     *   compare('1.0.0', '0.1.3') = 1
+     *   compare('0.0.1', '0.0.1') = 0;
+     *
+     * @param ver1 Version 1
+     * @param ver2 Version 2
+     * @return number (-1 if ver1 < ver2), (1 if ver1 > ver2), (0 if equal)
+     */
+    public static compare(ver1: string, ver2: string): number
+    {
+        // Equal case
+        if (ver1 == ver2) return 0;
+
+        // Split
+        let split1 = ver1.split('.');
+        let split2 = ver2.split('.');
+
+        // Detect each number
+        for (let i in split1)
+        {
+            // Get numbers
+            let num1 = split1[i];
+            let num2 = split2[i];
+
+            // Current number is equal
+            if (num1 == num2) continue;
+
+            // Current number is different
+            return +num1 < +num2 ? -1 : 1;
+        }
+
+        // Equal
+        return 0;
+    }
 }