35 lines
1.1 KiB
Java
35 lines
1.1 KiB
Java
//: enumerated/RoShamBo5.java
|
|
// Multiple dispatching using an EnumMap of EnumMaps.
|
|
package enumerated;
|
|
import java.util.*;
|
|
import static enumerated.Outcome.*;
|
|
|
|
enum RoShamBo5 implements Competitor<RoShamBo5> {
|
|
PAPER, SCISSORS, ROCK;
|
|
static EnumMap<RoShamBo5,EnumMap<RoShamBo5,Outcome>>
|
|
table = new EnumMap<RoShamBo5,
|
|
EnumMap<RoShamBo5,Outcome>>(RoShamBo5.class);
|
|
static {
|
|
for(RoShamBo5 it : RoShamBo5.values())
|
|
table.put(it,
|
|
new EnumMap<RoShamBo5,Outcome>(RoShamBo5.class));
|
|
initRow(PAPER, DRAW, LOSE, WIN);
|
|
initRow(SCISSORS, WIN, DRAW, LOSE);
|
|
initRow(ROCK, LOSE, WIN, DRAW);
|
|
}
|
|
static void initRow(RoShamBo5 it,
|
|
Outcome vPAPER, Outcome vSCISSORS, Outcome vROCK) {
|
|
EnumMap<RoShamBo5,Outcome> row =
|
|
RoShamBo5.table.get(it);
|
|
row.put(RoShamBo5.PAPER, vPAPER);
|
|
row.put(RoShamBo5.SCISSORS, vSCISSORS);
|
|
row.put(RoShamBo5.ROCK, vROCK);
|
|
}
|
|
public Outcome compete(RoShamBo5 it) {
|
|
return table.get(this).get(it);
|
|
}
|
|
public static void main(String[] args) {
|
|
RoShamBo.play(RoShamBo5.class, 20);
|
|
}
|
|
} /* Same output as RoShamBo2.java *///:~
|