/********************************************************************

  File:          bus.h
  Author:        Dana Vrajitoru

  Description:   A class handling a bus moving around.           
  Project:       A sprite moving through a maze application.

  Last updated:  February 10, 2011.

********************************************************************/

#ifndef BUS_H
#define BUS_H

enum Direction {north=0, west, south, east};
const int busid = 1;

// Draws a polygon with given array of coordinates,
void polygon(GLfloat coords[][2], float offx, float offy, int n);

// Returns the opposite of a given direction.
Direction opposite(Direction w);

class Bus {
 public:
  // The bus's position
  float x, y;
  // Orientation of the bus
  Direction orient;

  // Default constructor. Not much to do. Everything will be done in
  // the init function.
  Bus();

  // Draw the object and store it in the display list. We also need to
  // be able to give it an initial position.
  void init(float posx=0, float posy=0);

  // Move the bus from the current position by one unit in the given
  // direction
  void move(Direction where);

  // Draw the bus at given coordinates by just applying some
  // transformations and calling the display list.
  void draw();
};

#endif