50 lines
1.1 KiB
Java
50 lines
1.1 KiB
Java
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//: patterns/absfactory/GameEnvironment2.java
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// Using the Supplier<> Functional Interface.
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package patterns.absfactory;
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import java.util.function.*;
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class GameElementFactory2 {
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Supplier<Player> player;
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Supplier<Obstacle> obstacle;
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}
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// Concrete factories:
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class KittiesAndPuzzles2
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extends GameElementFactory2 {
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KittiesAndPuzzles2() {
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player = Kitty::new;
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obstacle = Puzzle::new;
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}
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}
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class KillAndDismember2
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extends GameElementFactory2 {
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KillAndDismember2() {
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player = KungFuGuy::new;
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obstacle = NastyWeapon::new;
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}
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}
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public class GameEnvironment2 {
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private Player p;
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private Obstacle ob;
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public GameEnvironment2(
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GameElementFactory2 factory) {
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p = factory.player.get();
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ob = factory.obstacle.get();
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}
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public void play() {
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p.interactWith(ob);
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}
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public static void main(String args[]) {
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GameElementFactory2
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kp = new KittiesAndPuzzles2(),
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kd = new KillAndDismember2();
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GameEnvironment2
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g1 = new GameEnvironment2(kp),
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g2 = new GameEnvironment2(kd);
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g1.play();
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g2.play();
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}
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} ///:~
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