// Project: Patterns2
// Module: state Example
// Source code file: HasQuarterState.java
// Use the State pattern to implement 
// the states of a gumball machine.

package gumball;
public class HasQuarterState implements State {
    private GumballMachine gumballMachine;

    public HasQuarterState(
            GumballMachine theMachine) {

        this.gumballMachine = theMachine;
    }

    public void insertQuarter( ) {
        System.out.println(
                "Tried to insert quarter. You already inserted quarter, turn crank.");
    }

    public void turnCrank( ) {
        if (gumballMachine.count > 0) {
            System.out.println("Crank turned. Gumball dispensed.");
            (gumballMachine.count)--;
            gumballMachine.setSoldState( );
        }
        else {
            System.out.println("Machine sold out.");
            gumballMachine.setSoldOutState();
        }
    }

    public void takeGumball( ) {
        System.out.println(
                "Tried to take gumball.  You must turn crack to get gumball.");
    }

    public void refillMachine(int n) {
        System.out.println(
                "Gumball machine is not empty, can't refill machine.");
    }
}