Improvements at the place where it is generated

FloatingSpace/StrategyParts.js

@@ -26,9 +26,9 @@ function newStrategyParts () {
     floatingLayer = pFloatingLayer
   }
 
-  function createNewStrategyPart (type, pPayload) {
+  function createNewStrategyPart (type, payload) {
     let floatingObject = newFloatingObject()
-    floatingObject.payload = pPayload
+    floatingObject.payload = payload
     floatingObject.initialize('Strategy Part', type, floatingLayer)
     floatingObject.underlayingObject.type = type // after initialize
 

StrategySpace/Strategy.js

@@ -38,12 +38,17 @@ function newStrategy () {
   }
 
   function createPart (partType, name, node, parentNode, chainParent, title) {
-    let payload = {
-      position: {
+    let payload = {}
+    if (chainParent === undefined) {
+      payload.position = {
         x: (viewPort.width - SIDE_PANEL_WIDTH) / 2 + SIDE_PANEL_WIDTH,
         y: viewPort.height / 2
-      },
-      visible: true
+      }
+    } else {
+      payload.position = {
+        x: chainParent.payload.position.x,
+        y: chainParent.payload.position.y
+      }
     }
 
     if (title !== undefined) {
@@ -52,6 +57,7 @@ function newStrategy () {
       payload.upLabel = partType
     }
 
+    payload.visible = true
     payload.downLabel = name
     payload.node = node
     payload.parentNode = parentNode