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Make FollowTargetGoal query for targets when necessary

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This commit is contained in:
TheMode 2021-08-18 22:11:15 +02:00
parent 5cf358ac3c
commit 8c6778983b
2 changed files with 32 additions and 21 deletions
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52
src/main/java/net/minestom/server/entity/ai/goal/FollowTargetGoal.java
View File

@ -1,6 +1,7 @@
package net.minestom.server.entity.ai.goal;
import net.minestom.server.coordinate.Point;
import net.minestom.server.coordinate.Pos;
import net.minestom.server.entity.Entity;
import net.minestom.server.entity.EntityCreature;
import net.minestom.server.entity.ai.GoalSelector;
@ -15,6 +16,8 @@ public class FollowTargetGoal extends GoalSelector {
private boolean forceEnd = false;
private Point lastTargetPos;
private Entity target;
/**
* Creates a follow target goal object.
*
@ -28,8 +31,14 @@ public class FollowTargetGoal extends GoalSelector {
@Override
public boolean shouldStart() {
return entityCreature.getTarget() != null &&
entityCreature.getTarget().getPosition().distance(entityCreature.getPosition()) >= 2;
Entity target = entityCreature.getTarget();
if (target == null) target = findTarget();
if (target == null) return false;
final boolean result = target.getPosition().distance(entityCreature.getPosition()) >= 2;
if (result) {
this.target = target;
}
return result;
}
@Override
@ -37,23 +46,23 @@ public class FollowTargetGoal extends GoalSelector {
lastUpdateTime = 0;
forceEnd = false;
lastTargetPos = null;
final Entity target = entityCreature.getTarget();
if (target != null) {
Navigator navigator = entityCreature.getNavigator();
lastTargetPos = target.getPosition();
if (lastTargetPos.distance(entityCreature.getPosition()) < 2) {
forceEnd = true;
navigator.setPathTo(null);
return;
}
if (navigator.getPathPosition() == null ||
(!navigator.getPathPosition().samePoint(lastTargetPos))) {
navigator.setPathTo(lastTargetPos);
} else {
forceEnd = true;
}
if (target == null) {
// No defined target
this.forceEnd = true;
return;
}
this.entityCreature.setTarget(target);
Navigator navigator = entityCreature.getNavigator();
this.lastTargetPos = target.getPosition();
if (lastTargetPos.distance(entityCreature.getPosition()) < 2) {
// Target is too far
this.forceEnd = true;
navigator.setPathTo(null);
return;
}
if (navigator.getPathPosition() == null ||
(!navigator.getPathPosition().samePoint(lastTargetPos))) {
navigator.setPathTo(lastTargetPos);
} else {
forceEnd = true;
}
@ -66,7 +75,7 @@ public class FollowTargetGoal extends GoalSelector {
pathDuration.toMillis() + lastUpdateTime > time) {
return;
}
final var targetPos = entityCreature.getTarget() != null ? entityCreature.getTarget().getPosition() : null;
final Pos targetPos = entityCreature.getTarget() != null ? entityCreature.getTarget().getPosition() : null;
if (targetPos != null && !targetPos.samePoint(lastTargetPos)) {
this.lastUpdateTime = time;
this.lastTargetPos = targetPos;
@ -79,11 +88,12 @@ public class FollowTargetGoal extends GoalSelector {
final Entity target = entityCreature.getTarget();
return forceEnd ||
target == null ||
target.isRemoved() ||
target.getPosition().distance(entityCreature.getPosition()) < 2;
}
@Override
public void end() {
entityCreature.getNavigator().setPathTo(null);
this.entityCreature.getNavigator().setPathTo(null);
}
}

1
src/main/java/net/minestom/server/entity/ai/target/ClosestEntityTarget.java
View File

@ -21,6 +21,7 @@ public class ClosestEntityTarget extends TargetSelector {
private final float range;
private final Class<? extends LivingEntity>[] entitiesTarget;
@SafeVarargs
public ClosestEntityTarget(@NotNull EntityCreature entityCreature, float range,
@NotNull Class<? extends LivingEntity>... entitiesTarget) {
super(entityCreature);