my-tikz: move nodes command to my-tikz

my-env.sty

@@ -101,38 +101,3 @@
 \newcommand{\setmark}[2]{%
   \ifundef{#1}{\def#1{#2}}{}%
 }
-
-% draw CS arrays
-\newcounter{nodeidx}
-\setcounter{nodeidx}{0}
-
-\newif\ifcontinuearray
-
-\pgfkeys{
-  /myarray/.is family,
-  /myarray,
-  default/.style={
-    sep distance = 0,
-    array number = 0,
-  },
-  continue/.initial = false,
-  sep distance/.estore in=\sepDistance,
-  array number/.estore in=\arrayNum,
-  continue/.is if=continuearray
-}
-
-\newcommand{\nodes}[2][]{%
-  \pgfkeys{/myarray, default, #1}%
-  \begin{scope}[\ifcontinuearray continue \else start \fi chain=my-array-temp-{\arrayNum} going right, node
-    distance=\sepDistance]
-    \foreach \num in {#2}{
-      \node[minimum size=2em, draw, rectangle, on
-      chain=my-array-temp-{\arrayNum}] (nodearray-\arrayNum-\arabic{nodeidx}) {\num};
-      \stepcounter{nodeidx}
-    }
-  \end{scope}
-}
-
-\newcommand{\brckt}[4]{% from, to, lvl, text
-  \draw (nodearray-#1.south west) ++($(-.1, -.1) + (-.1*#3, 0)$) -- ++($(0,-.1) + (0,-#3*1.25em)$) -- node [below] {#4} ($(nodearray-#2.south east) + (.1,-.1) + (.1*#3, 0) + (0,-.1) + (0,-#3*1.25em)$) -- ++($(0,#3*1.25em) + (0,.1)$);%
-}

my-tikz.sty

@@ -180,3 +180,39 @@
     \alt<#1>{\pgfkeysalso{#2}}{\pgfkeysalso{#3}} % \pgfkeysalso doesn't change the path
   }
 }
+
+% draw CS arrays
+\usetikzlibrary{intersections}
+\newcounter{nodeidx}
+\setcounter{nodeidx}{0}
+
+\newif\ifcontinuearray
+
+\pgfkeys{
+  /myarray/.is family,
+  /myarray,
+  default/.style={
+    sep distance = 0,
+    array number = 0,
+  },
+  continue/.initial = false,
+  sep distance/.estore in=\sepDistance,
+  array number/.estore in=\arrayNum,
+  continue/.is if=continuearray
+}
+
+\newcommand{\nodes}[2][]{%
+  \pgfkeys{/myarray, default, #1}%
+  \begin{scope}[\ifcontinuearray continue \else start \fi chain=my-array-temp-{\arrayNum} going right, node
+    distance=\sepDistance]
+    \foreach \num in {#2}{
+      \node[minimum size=2em, draw, on
+      chain=my-array-temp-{\arrayNum}] (nodearray-\arrayNum-\arabic{nodeidx}) {\num};
+      \stepcounter{nodeidx}
+    }
+  \end{scope}
+}
+
+\newcommand{\brckt}[4]{% from, to, lvl, text
+  \draw (nodearray-#1.south west) ++($(-.1, -.1) + (-.1*#3, 0)$) -- ++($(0,-.1) + (0,-#3*1.25em)$) -- node [below] {#4} ($(nodearray-#2.south east) + (.1,-.1) + (.1*#3, 0) + (0,-.1) + (0,-#3*1.25em)$) -- ++($(0,#3*1.25em) + (0,.1)$);%
+}