added jitter and radius parameters to light objects; not using them yet

git-svn-id: svn://anubis/fart/trunk@255 7f9b0f55-74a9-4bce-be96-3c2cd072584d

parser/nodes.h

@@ -130,6 +130,12 @@ class ItemsNode : public Node
 {
 };
 
+class JitterNode : public IntegerNode
+{
+    public:
+        JitterNode(int i) : IntegerNode(i) {}
+};
+
 class LightNode : public Node
 {
 };

parser/parser.lex

@@ -49,6 +49,7 @@ diffuse             return DIFFUSE;
 exposure            return EXPOSURE;
 height              return HEIGHT;
 intersect           return INTERSECT;
+jitter              return JITTER;
 light               return LIGHT;
 look_at             return LOOKAT;
 material            return MATERIAL;

parser/parser.yy

@@ -68,6 +68,7 @@ static refptr<Node> parsed_scene_node;
 %token EXPOSURE;
 %token HEIGHT;
 %token INTERSECT;
+%token JITTER;
 %token LIGHT;
 %token LOOKAT;
 %token MATERIAL;
@@ -190,6 +191,11 @@ intersect: INTERSECT LCURLY bool_items RCURLY {
             }
          ;
 
+jitter: JITTER number {
+        $$ = new JitterNode($2->getInteger());
+      }
+      ;
+
 light: LIGHT LCURLY light_items RCURLY {
             $$ = new LightNode();
             $$->addChildren($3);
@@ -216,6 +222,12 @@ light_item: POSITION vector {
           | COLOR vector {
                 $$ = new ColorNode($2->getVector());
             }
+          | radius {
+                $$ = $1;
+            }
+          | jitter {
+                $$ = $1;
+            }
           ;
 
 material: MATERIAL LCURLY material_items RCURLY {