63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
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#include <stdlib.h>
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#include <iostream>
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#include "Duck.h"
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#include "Visitor.h"
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using namespace std;
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// helper defined at bottom of file
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void duck_introduction(Duck* duck);
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int main() {
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// EXAMPLE of polymorphism and the Strategy Pattern
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Duck* ducks[5];
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ducks[0] = new Duck();
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ducks[0]->setName("Jane");
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ducks[1] = new Mallard();
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ducks[1]->setName("Maloy");
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ducks[2] = new RubberDuck();
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ducks[2]->setName("Lemon");
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ducks[3] = new DecoyDuck();
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ducks[3]->setName("xXx::KINGP1N::xXx");
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ducks[4] = new SeaDuck();
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ducks[4]->setName("doievenfly?lol");
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for (int i = 0; i < 5; i++) {
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duck_introduction(ducks[i]);
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}
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// EXAMPLE of the Visitor Pattern
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// This is a visitor of ducks.
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// It needs information, but only from certain kinds of ducks.
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RealDuckReport* rd = new RealDuckReport;
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// Tell each duck to accept a visit from RealDuckReport
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cout << "----- REPORT of Real Ducks -----" << endl;
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for (int i = 0; i < 5; i++) {
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ducks[i]->accept(rd);
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}
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cout << endl;
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// This is a visitor of ducks.
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// It needs information, but only from certain kinds of ducks.
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FakeDuckReport* fd = new FakeDuckReport;
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// Tell each duck to accept a visit from FakeDuckReport
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cout << "----- REPORT of Fake Ducks -----" << endl;
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for (int i = 0; i < 5; i++) {
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ducks[i]->accept(fd);
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}
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cout << endl;
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}
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void duck_introduction(Duck* duck) {
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duck->display();
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duck->fly();
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duck->quack();
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cout << endl;
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}
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