/*Race Class (includes main) */
package HorseRace;

import javax.swing.JOptionPane;

public class Race {

    public static void main(String[] args) {
        final int FINISHLINE = 100; // how far the finish line is (in spaces)
        final int NUM_HORSES = 4;       // number of horses to include in race

        // create some horses
        Horse[] horses = new Horse[NUM_HORSES];
        for(int i = 0; i < NUM_HORSES; i++) {
            horses[i] = new Horse("Horse_"+(i+1));
        }

        // check the horse count
        if( NUM_HORSES != Horse.getHorseCount()) {
            System.out.println("Horse count does not match NUM_HORSES!");
            System.out.println("NUM_HORSES:"+NUM_HORSES+" Horse count:"+Horse.getHorseCount());
        }

        // Run the race
        for(int i = 0;; i++) {
            for(int j = 0; j < NUM_HORSES; j++) {
                horses[j].doStep(i);
                System.out.println("");
            }
            for(int j = 0; j < NUM_HORSES; j++) {
                if(horses[j].hasWon(FINISHLINE) == true) {
                    JOptionPane.showMessageDialog(null,horses[j].getName()+" has won!");
                    return;
                }
            }
            try{ Thread.sleep(30); } catch(Exception e) {}
            System.out.println("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
        }
    }
}


/*Horse Class*/
package HorseRace;
import java.util.Random;

public class Horse {
    protected double speed;
    protected String name;
    protected double location;
    protected static int numHorses = 0;

    /*
     * This is the class constructor, this is what is called when you make a new Horse object.
     * In this case, the constructor must set the instance variables (speed, name, location) and
     * update the class variable (numHorses).
     * Hint: speed should be a random value((double)) (remember the random library from week 5?)
     * Hint2: it might help to initialize location to something neutral (say 0) just to be safe
     */
    public Horse(String name) {

        //Set horse name, speed & location
        this.name = name;

        Random r = new Random();
        this.speed = r.nextDouble();

        this.location = 0.0;

        //update number of horses
        Horse.numHorses +=1;
    }

    /*
     * doStep is called when the horse is running. It calculates the new location of the horse
     * and sets the instance variable accordingly. To calculate new location use the
     * formula: time*speed. This method should also call the drawHorse method.
     */
    public void doStep(int time) {

        //Calculate new location of the horse
        this.location = (time*this.speed);

        //Call drawHorse method
        drawHorse();
    }

    /*
     *  This method returns the value stored in the numHorses class variable.
     */
    public static int getHorseCount() {
        return numHorses;
    }

    /*
     * This method returns the value stored in the name instance variable.
     */
    public String getName() {
        return this.name;
    }

    /*
     * This method should print out a number of blank spaces equal to the integer portion of the
     * value stored in the location instance variable. It should then print out the horse /V/"
     * (don't forget to escape the quotation mark!)
     * note: don't print out a newline for either of these print statements
     */
    private void drawHorse() {
        int numSpaces;
        numSpaces = (int) this.location;
        String blanks ="";

        //print blank spaces
        for(int i=0 ;i <= numSpaces; i++){
        blanks += " ";
    }
        //Add horse to end of blanks and print
        System.out.println(blanks + "/V/\"");
    }

    /*
     * This method checks whether the horse's location is greater than or equal to the trackLength.
     * If it is, then the method returns true, otherwise it returns false.
     */
    public boolean hasWon(int trackLength) {
        if(this.location>= trackLength){
            return true;
        }else{
            return false;
        }
    }

    /*
     *  Method increments numHorses by 1.
     */
    public void updateHorseCount() {
        Horse.numHorses +=1;
    }
}