Add ProtocolVersionList#isCloserTo

Author: FlorianMichael

src/main/java/net/raphimc/vialoader/util/ProtocolVersionList.java

@@ -31,4 +31,21 @@ public static List<ProtocolVersion> getProtocolsNewToOld() {
         return Collections.unmodifiableList(protocolVersions);
     }
 
+    /**
+     * Returns true if first is closer to version than second
+     *
+     * @param version The version to compare to
+     * @param first   The first version
+     * @param second  The second version
+     * @return true if first is closer to version than second
+     */
+    public static boolean isCloserTo(final ProtocolVersion version, final ProtocolVersion first, final ProtocolVersion second) {
+        if (version.getVersionType() == first.getVersionType() || version.getVersionType() == second.getVersionType()) {
+            return Math.abs(version.getVersion() - first.getVersion()) < Math.abs(version.getVersion() - second.getVersion());
+        } else {
+            final int ordinal = version.getVersionType().ordinal();
+            return Math.abs(ordinal - first.getVersionType().ordinal()) < Math.abs(ordinal - second.getVersionType().ordinal());
+        }
+    }
+
 }