added CompactedCoords util

core/src/main/java/mc/core/utils/CompactedCoords.java

@@ -0,0 +1,23 @@
+package mc.core.utils;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class CompactedCoords {
+    public static int compressXZ(int x, int z) {
+        if (x < Short.MIN_VALUE || x > Short.MAX_VALUE ||
+                z < Short.MIN_VALUE || z > Short.MAX_VALUE) {
+            log.warn("Coord over range: [{},{}]", x, z);
+        }
+
+        return ((x & 0xFFFF) << 16) | (z & 0xFFFF);
+    }
+
+    public static int[] uncompressXZ(int compactValue) {
+        //TODO не нравится мне такие костыли
+        return new int[]{
+                (int)(short) (compactValue >> 16),
+                (int)(short) (compactValue | 0xFFFF0000)
+        };
+    }
+}