feat(scenegraph): add ICopy impls for Node2/3

thi-ng · Jul 28, 2020 · fd6ffdb · fd6ffdb
1 parent 15213e2
commit fd6ffdb
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Showing 2 changed files with 29 additions and 7 deletions.
diff --git a/packages/scenegraph/src/node2.ts b/packages/scenegraph/src/node2.ts
@@ -1,12 +1,12 @@
-import { deref, IToHiccup, Nullable } from "@thi.ng/api";
+import { deref, ICopy, IToHiccup, Nullable } from "@thi.ng/api";
 import { isFunction, isNumber } from "@thi.ng/checks";
 import { invert23, mulM23, mulV23, transform23 } from "@thi.ng/matrices";
-import type { ReadonlyVec, Vec } from "@thi.ng/vectors";
+import { ReadonlyVec, set2, Vec } from "@thi.ng/vectors";
 import { ANode } from "./anode";
 import type { ISceneNode } from "./api";
 
 export class Node2D extends ANode<Node2D>
-    implements ISceneNode<Node2D>, IToHiccup {
+    implements ICopy<Node2D>, ISceneNode<Node2D>, IToHiccup {
     translate: Vec;
     rotate: number;
     scale: Vec | number;
@@ -26,6 +26,17 @@ export class Node2D extends ANode<Node2D>
         this.update();
     }
 
+    copy() {
+        return new Node2D(
+            this.id,
+            this.parent,
+            set2([], this.translate),
+            this.rotate,
+            set2([], <Vec>this.scale),
+            this.body
+        );
+    }
+
     deleteChild(node: number | Node2D) {
         return this._deleteChild(node, Node2D);
     }

diff --git a/packages/scenegraph/src/node3.ts b/packages/scenegraph/src/node3.ts
@@ -1,12 +1,12 @@
-import { deref, IToHiccup, Nullable } from "@thi.ng/api";
+import { deref, ICopy, IToHiccup, Nullable } from "@thi.ng/api";
 import { isFunction, isNumber } from "@thi.ng/checks";
 import { invert44, mulM44, mulV344, transform44 } from "@thi.ng/matrices";
-import type { ReadonlyVec, Vec } from "@thi.ng/vectors";
+import { ReadonlyVec, set3, Vec } from "@thi.ng/vectors";
 import { ANode } from "./anode";
 import type { ISceneNode } from "./api";
 
 export class Node3D extends ANode<Node3D>
-    implements ISceneNode<Node3D>, IToHiccup {
+    implements ICopy<Node3D>, ISceneNode<Node3D>, IToHiccup {
     translate: Vec;
     rotate: Vec;
     scale: Vec | number;
@@ -15,7 +15,7 @@ export class Node3D extends ANode<Node3D>
         id: string,
         parent?: Nullable<Node3D>,
         translate: Vec = [0, 0, 0],
-        rotate = [0, 0, 0],
+        rotate: Vec = [0, 0, 0],
         scale: Vec | number = 1,
         body?: any
     ) {
@@ -26,6 +26,17 @@ export class Node3D extends ANode<Node3D>
         this.update();
     }
 
+    copy() {
+        return new Node3D(
+            this.id,
+            this.parent,
+            set3([], this.translate),
+            set3([], this.rotate),
+            set3([], <Vec>this.scale),
+            this.body
+        );
+    }
+
     deleteChild(node: number | Node3D) {
         return this._deleteChild(node, Node3D);
     }