APCSA-FEEDER/Feeder.java at main · rainc446/APCSA-FEEDER · GitHub

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public class Feeder {

    /**
     * The amount of food, in grams, currently in the bird feeder; initialized
     * in the constructor and always greater than or equal to zero
     */

    private int currentFood;
    private int count;
    private boolean simulatingDays;

    public Feeder(int c)
    {
        currentFood = c;
    }

    public Feeder() {}
    /**
     * Simulates one day with numBirds birds or possibly a bear at the bird
     * feeder, as described in part (a) Precondition: numBirds > 0
     */
    public void simulateOneDay(int numBirds)
    {

        if((Math.random()*10) < .05)
        {
            currentFood = 0;
        }
        else
        {
            int eaten = (int) (Math.random() *41 ) +10;
            currentFood -= eaten*numBirds;
            if(currentFood < 0) {currentFood = 0;}
        }

    }

    /**
     * Returns the number of days birds or a bear found food to eat at the
     * feeder in this simulation, as described in part (b) Preconditions:
     * numBirds > 0, numDays > 0
     */
    public int simulateManyDays(int numBirds, int numDays)
    {
        simulatingDays = true;
        count = 0; //if food is 0 day will still be 1
        if (currentFood == 0){return currentFood;}
        for(int days = 0; days < numDays; days++)
        {
            if((Math.random()*10) < .05) //simulates bear
            {
                count++;
                currentFood = 0;
                System.out.println("Day " + count + ": simulateOneDay leaves "+ currentFood+ " grams of food in the feeder" );
                return count; //ends simulation
            }


            else //simulates no bear
            {
                int eaten = (int) (Math.random() *41 ) +10;
                currentFood -= eaten*numBirds;
                count++;
                if(currentFood < 0)
                {
                    currentFood = 0;
                    System.out.println("Day " + count + ": simulateOneDay leaves "+ currentFood+ " grams of food in the feeder" );
                    return count;
                }
                System.out.println("Day " + count + ": simulateOneDay leaves "+ currentFood+ " grams of food in the feeder" );
            }

        }
        return count;
    }

    public int getCurrentFood()
    {
        return currentFood;
    }

    public String toString()
    {
        if (simulatingDays){
            return "Current Food: " + currentFood + "\n"+  "Days: " + count;
        }
        return "Current Food: " + currentFood;

    }

}