fixed Ngon using an expression for n_sides and implementing getInteger()

git-svn-id: svn://anubis/fart/branches/scene-file-scripting@322 7f9b0f55-74a9-4bce-be96-3c2cd072584d

parser/nodes.h

@@ -236,6 +236,7 @@ class NGonNode : public NumberNode
 {
     public:
         NGonNode(refptr<Node> e) : NumberNode(e) {}
+        int getInteger() { return getNumber(); }
 };
 
 class OffsetNode : public NumberNode

parser/parser.yy

@@ -314,7 +314,7 @@ number: DEC_NUMBER  { $$ = $1; }
       | REAL_NUMBER { $$ = $1; }
       ;
 
-ngon: NGON DEC_NUMBER COMMA expression {
+ngon: NGON expression COMMA expression {
         $$ = new NGonNode($2);
         $$->addChild(new RadiusNode($4));
     }