fixed drawing methods to virtual

Author: ruxrux

chapters/OOPs!/examples/oops_6/src/Ball.h

@@ -17,7 +17,7 @@ class Ball {
         // methods, equivalent to specific functions of your class objects
         void setup(float _x, float _y, int _dim);   // setup method, used to define the initial state of the object: runs only once!
         void update();  // update method, used to refresh your objects properties: runs constantly
-        virtual void draw();    // we made this now a virtual because we'll redefine it in derived classes
+        void draw();    // draw method
         // variables
         float x;      // position
         float y;

chapters/OOPs!/examples/oops_6/src/BallBlue.h

@@ -7,6 +7,6 @@ class BallBlue : public Ball { 	// we set the class to inherit from 'ofBall'
 
 public:
 
-   void draw(); 			// this is the only methid we actually want to be different from the 'mother class'
+   virtual void draw(); 			// this is the only method we actually want to be different from the 'mother class'
 
 };

chapters/OOPs!/examples/oops_6/src/BallGreen.h

@@ -7,6 +7,6 @@ class BallGreen : public Ball { 	// we set the class to inherit from 'ofBall'
 
 public:
 
-    void draw(); 			// this is the only methid we actually want to be different from the 'mother class'
+    virtual void draw(); 			// this is the only method we actually want to be different from the 'mother class'
 
 };

chapters/OOPs!/examples/oops_6/src/BallRed.h

@@ -7,6 +7,6 @@ class BallRed : public Ball { 	// we set the class to inherit from 'ofBall'
 
 public:
 
-   void draw(); 			// this is the only methid we actually want to be different from the 'mother class'
+   virtual void draw(); 			// this is the only method we actually want to be different from the 'mother class'
 
 };