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Code Issues Releases Wiki Activity

Target mutations bias players with lower health

This commit is contained in:
Electroid 2017-06-05 23:23:06 -07:00
parent 9da64d8372
commit 3d64b00d39
2 changed files with 24 additions and 4 deletions
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20
PGM/src/main/java/tc/oc/pgm/mutation/types/TargetMutation.java
View File

@ -2,9 +2,12 @@ package tc.oc.pgm.mutation.types;
import java.time.Duration;
import java.time.Instant;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import tc.oc.commons.core.stream.Collectors;
import com.google.api.client.util.Lists;
import tc.oc.commons.core.random.MutableWeightedRandomChooser;
import tc.oc.commons.core.util.TimeUtils;
import tc.oc.pgm.match.Match;
import tc.oc.pgm.match.MatchPlayer;
@ -54,9 +57,18 @@ public interface TargetMutation extends MutationModule {
* @return the random players.
*/
default List<MatchPlayer> search() {
return match().participants()
.filter(MatchPlayer::isSpawned)
.collect(Collectors.toRandomSubList(entropy(), targets()));
Set<MatchPlayer> players = new HashSet<>();
MutableWeightedRandomChooser<MatchPlayer, Double> chooser = new MutableWeightedRandomChooser<>(
match().participants().filter(MatchPlayer::canInteract),
player -> Math.max(1, player.getBukkit().getMaxHealth() - player.getBukkit().getHealth())
);
int targets = targets();
for(int i = 0; !chooser.isEmpty() && i < targets; i++) {
MatchPlayer choice = chooser.choose(entropy());
players.add(choice);
chooser.remove(choice);
}
return Lists.newArrayList(players);
}
/**

8
Util/core/src/main/java/tc/oc/commons/core/random/MutableWeightedRandomChooser.java
View File

@ -1,7 +1,11 @@
package tc.oc.commons.core.random;
import tc.oc.commons.core.stream.Collectors;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Stream;
/**
* A random chooser that supports insertion and removal of choices.
@ -17,6 +21,10 @@ public class MutableWeightedRandomChooser<T, N extends Number> extends WeightedR
addAll(weights);
}
public MutableWeightedRandomChooser(Stream<T> elements, Function<T, N> scale) {
this(elements.collect(Collectors.mappingTo(scale)));
}
@Override
public boolean isEmpty() {
return options.isEmpty();