Merge pull request #340 from ninmonkey/fix-forward-returns-NaN

fix: `Turtle.js.pathData` returns `NaN` paths ( fixes: #339, fixes: #336, fixes: #337, fixes: #338 )

Author: StartAutomating

Turtle.types.ps1xml

@@ -8694,10 +8694,6 @@ foreach ($javaScriptProperty in $this.psobject.properties | Sort-Object Name) {
     )
 }</Value>
       </NoteProperty>
-      <NoteProperty>
-        <Name>get_heading.js</Name>
-        <Value>heading: 0.0</Value>
-      </NoteProperty>
       <NoteProperty>
         <Name>go.js</Name>
         <Value>function go() {
@@ -8712,6 +8708,17 @@ foreach ($javaScriptProperty in $this.psobject.properties | Sort-Object Name) {
         <Name>goto.js</Name>
         <Value>function goto(x,y) { return this.step(x - this.x, y - this.y) }</Value>
       </NoteProperty>
+      <NoteProperty>
+        <Name>heading.js</Name>
+        <Value>function get_heading() {
+    const _ = this
+    if ( _['#heading'] === undefined ) {
+        _['#heading'] = 0.0
+    }
+    return _['#heading']
+}
+</Value>
+      </NoteProperty>
       <NoteProperty>
         <Name>height.js</Name>
         <Value>height: 0.0</Value>
@@ -8785,7 +8792,7 @@ foreach ($javaScriptProperty in $this.psobject.properties | Sort-Object Name) {
       </NoteProperty>
       <NoteProperty>
         <Name>pathData.js</Name>
-        <Value>function get_pathData() {
+        <Value>function pathData() {
     let startX = 0;
     let startY = 0;
     if (!this.min)  { this.min = { x: 0.0, y: 0.0}}
@@ -8844,14 +8851,12 @@ foreach ($javaScriptProperty in $this.psobject.properties | Sort-Object Name) {
       <NoteProperty>
         <Name>set_heading.js</Name>
         <Value>function set_heading(value) {
-    let _ = this
+    const _ = this
     try {
         _['#heading'] = new Number(value)
     } catch {
-        
         _['#heading'] = 0.0
     }
-    
     return _
 }</Value>
       </NoteProperty>

Types/Turtle.js/get_heading.js

@@ -0,0 +1,7 @@
+function get_heading() {
+    const _ = this
+    if ( _['#heading'] === undefined ) {
+        _['#heading'] = 0.0
+    }
+    return _['#heading']
+}

Types/Turtle.js/heading.js

@@ -1,4 +1,4 @@
-function get_pathData() {
+function pathData() {
     let startX = 0;
     let startY = 0;
     if (!this.min)  { this.min = { x: 0.0, y: 0.0}}

Types/Turtle.js/pathData.js

@@ -1,11 +1,9 @@
 function set_heading(value) {
-    let _ = this
+    const _ = this
     try {
         _['#heading'] = new Number(value)
     } catch {
-        
         _['#heading'] = 0.0
     }
-    
     return _
 }