package csc241.samples.parkingGarage;

/* File:	garage.java
   Author:	Mohammadi
   Last Update: 10/22/02
*/

/** ~mohammad/public_html/classes/csc241/samples/garage.java
    garage is a Canvas and needs a 200X350 area to draw 
    correctly.  A garage consists of 5 carRows. With the first holding
    any type of car, 4th one holding red cars and the 5th one the black cars
    only. We never put a longer staying car in fornt of a shorter staying car.
**/

import java.awt.*;
import csc241.samples.Stack.*;


public class garage extends Canvas {
  protected static final Color backGroundColor = Color.white;
  protected static final int redRow = 3;
  protected static final int blackRow = 4;
  protected static final int row1 = 0;
  protected static final int row2 = 1;
  protected static final int row3 = 2;

  protected static final int rows = 5;

  protected static final int carsPerRow = 10;

  /** rows of cars **/
  carRow [] c_;

  /** Build carRows array.
  **/
  public garage () {
    setBackground(backGroundColor);
    setSize(210,350);
    c_ = new carRow [rows];
    for (int i=0;i<rows;i++)
      c_[i] = new carRow (carsPerRow,(i+1)*(car.carSize+2),1,Color.lightGray);
  }

  /** put this car in a carRow; if can't find room for it, do nothing.
   **/
  public void enter (car c) {
    try{
      for (int i=row1;i<=row3;i++)
        if (c_[i].empty() || 
            (!c_[i].full() && c.carType()<=c_[i].frontCar().carType())) {
          c_[i].push(c);
          repaint();
          return;
        }
      if(c.carType()==3 && !c_[blackRow].full()) {
        c_[blackRow].push(c);
        repaint();
        return;
      }
      if(c.carType()==2 && !c_[redRow].full()) {
        c_[redRow].push(c);
        repaint();
        return;
      }
    }
    catch(stackException e) {System.err.println(e.getMessage());}
  }

  /** remove a car of a particular type; left for you to write.   **/
  public void exit (int carType) {
  }


  /**Draw the image of the parking lot. **/
  public void paint (Graphics g) {
    for (int i=0;i<rows;i++)
      c_[i].draw(g);
  }
}