Add ScaleAndTranslateTransform class

Author: TomyLobo

worldedit-core/src/main/java/com/sk89q/worldedit/math/transform/ScaleAndTranslateTransform.java

@@ -0,0 +1,68 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.math.transform;
+
+import com.sk89q.worldedit.math.Vector3;
+
+/**
+ * A more light-weight {@link Transform} than {@link AffineTransform}, supporting only translation and scaling.
+ */
+public record ScaleAndTranslateTransform(Vector3 offset, Vector3 scale) implements Transform {
+
+    @Override
+    public boolean isIdentity() {
+        return offset.equals(Vector3.ZERO) && scale.equals(Vector3.ONE);
+    }
+
+    @Override
+    public Vector3 apply(Vector3 input) {
+        return input.multiply(scale).add(offset);
+    }
+
+    @Override
+    public Transform inverse() {
+        return new Transform() {
+            @Override
+            public boolean isIdentity() {
+                return ScaleAndTranslateTransform.this.isIdentity();
+            }
+
+            @Override
+            public Vector3 apply(Vector3 input) {
+                return input.subtract(offset).divide(scale);
+            }
+
+            @Override
+            public Transform inverse() {
+                return ScaleAndTranslateTransform.this;
+            }
+
+            @Override
+            public Transform combine(Transform other) {
+                return new CombinedTransform(this, other);
+            }
+        };
+    }
+
+    @Override
+    public Transform combine(Transform other) {
+        return new CombinedTransform(this, other);
+    }
+}