Add operator<< overload for Object

src/object.cc

@@ -54,6 +54,15 @@ Object::set_origin(Vector3 v)
     origin = v;
 }
 
+
+std::ostream &
+operator<<(std::ostream &os, const Object &o)
+{
+    // Stream objects like this: [Object origin]
+    os << "[Object " << o.origin << "]";
+    return os;
+}
+
 #pragma mark - Shapes
 
 /*

src/object.h

@@ -9,6 +9,8 @@
 #ifndef __OBJECT_H__
 #define __OBJECT_H__
 
+#include <iostream>
+
 #include "basics.h"
 #include "material.h"
 #include "texture.h"
@@ -23,10 +25,14 @@ public:
     Vector3 get_origin() const;
     void set_origin(Vector3 v);
 
+    friend std::ostream &operator<<(std::ostream &os, const Object &o);
+
 private:
     Vector3 origin;
 };
 
+std::ostream &operator<<(std::ostream &os, const Object &o);
+
 
 class Shape
     : public Object