2 files changed, 94 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/util/extensions/ArrayExt.java b/src/main/java/gregtech/api/util/extensions/ArrayExt.java
new file mode 100644
index 0000000000..b6ebb07d38
--- /dev/null
+++ b/src/main/java/gregtech/api/util/extensions/ArrayExt.java
@@ -0,0 +1,81 @@
+package gregtech.api.util.extensions;
+
+import java.util.function.IntFunction;
+
+public class ArrayExt {
+
+    public static int[] of(int... objects) {
+        return objects;
+    }
+
+    public static float[] of(float... objects) {
+        return objects;
+    }
+
+    public static double[] of(double... objects) {
+        return objects;
+    }
+
+    public static char[] of(char... objects) {
+        return objects;
+    }
+
+    public static byte[] of(byte... objects) {
+        return objects;
+    }
+
+    public static long[] of(long... objects) {
+        return objects;
+    }
+
+    @SafeVarargs
+    public static <T> T[] of(T... objects) {
+        return objects;
+    }
+
+    @SuppressWarnings("ForLoopReplaceableByForEach")
+    public static <T> T[] withoutNulls(T[] array, IntFunction<T[]> arrayFactory) {
+        int count = 0;
+        for (int i = 0; i < array.length; i++) {
+            if (array[i] != null) {
+                count++;
+            }
+        }
+
+        T[] newArr = arrayFactory.apply(count);
+        if (count == 0) return newArr;
+
+        int j = 0;
+        for (int i = 0; i < array.length; i++) {
+            if (array[i] != null) {
+                newArr[j] = array[i];
+                j++;
+            }
+        }
+
+        return newArr;
+    }
+
+    public static <T> T[] withoutTrailingNulls(T[] array, IntFunction<T[]> arrayFactory) {
+        int firstNull = -1;
+        for (int i = array.length - 1; i >= 0; i--) {
+            if (array[i] == null) {
+                firstNull = i;
+            } else {
+                break;
+            }
+        }
+
+        if (firstNull == -1) {
+            T[] newArray = arrayFactory.apply(array.length);
+            System.arraycopy(array, 0, newArray, 0, array.length);
+            return newArray;
+        } else if (firstNull == 0) {
+            return arrayFactory.apply(0);
+        } else {
+            T[] newArray = arrayFactory.apply(firstNull);
+            System.arraycopy(array, 0, newArray, 0, firstNull);
+            return newArray;
+        }
+    }
+}
diff --git a/src/main/java/gregtech/api/util/extensions/IteratorExt.java b/src/main/java/gregtech/api/util/extensions/IteratorExt.java
new file mode 100644
index 0000000000..3cbae1c598
--- /dev/null
+++ b/src/main/java/gregtech/api/util/extensions/IteratorExt.java
@@ -0,0 +1,13 @@
+package gregtech.api.util.extensions;
+
+import java.util.Iterator;
+
+import gregtech.api.objects.iterators.MergedIterator;
+
+public class IteratorExt {
+
+    @SafeVarargs
+    public static <T> Iterator<T> merge(Iterator<T>... iterators) {
+        return new MergedIterator<>(iterators);
+    }
+}