Update upstream(Luminol-lithium-sleeping-block-entity)

lophine-server/src/main/java/com/logisticscraft/occlusionculling/util/MathUtilities.java

@@ -0,0 +1,25 @@
+package com.logisticscraft.occlusionculling.util;
+
+/**
+ * Contains MathHelper methods
+ */
+public final class MathUtilities {
+
+    private MathUtilities() {
+    }
+
+    public static int floor(double d) {
+        int i = (int) d;
+        return d < (double) i ? i - 1 : i;
+    }
+
+    public static int fastFloor(double d) {
+        return (int) (d + 1024.0) - 1024;
+    }
+
+    public static int ceil(double d) {
+        int i = (int) d;
+        return d > (double) i ? i + 1 : i;
+    }
+
+}