pen up/pen down

bun.lock

@@ -1,5 +1,6 @@
 {
   "lockfileVersion": 1,
+  "configVersion": 0,
   "workspaces": {
     "": {
       "name": "fin",

src/app.ts

@@ -196,6 +196,14 @@ class Turtle {
     turtleCtx.restore()
   }
 
+  pen(dir: string) {
+    switch (dir) {
+      case 'up': this.penup(); break
+      case 'down': this.pendown(); break
+      default: throw "pen only accepts up or down"
+    }
+  }
+
   penup() {
     this.penDown = false
   }
@@ -254,6 +262,7 @@ const globals = {
   back: async (n: number) => await turtle.back(n),
   left: async (n: number) => await turtle.left(n),
   right: async (n: number) => await turtle.right(n),
+  pen: (dir) => turtle.pen(dir),
   penup: () => turtle.penup(),
   pendown: () => turtle.pendown(),
   setcolor: (n: number) => turtle.setcolor(n),