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#809: Throw a more clear error for BlockIterators with zero direction, add Vector#isZero()

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By: Parker Hawke <hawkeboyz2@hotmail.com>
This commit is contained in:
Bukkit/Spigot
2023-02-11 09:44:56 +11:00
parent e17edb7785
commit d6d7c1a64f
3 changed files with 25 additions and 0 deletions
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6
paper-api/src/main/java/org/bukkit/util/BlockIterator.java
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@@ -1,6 +1,7 @@
package org.bukkit.util;
import static org.bukkit.util.NumberConversions.*;
import com.google.common.base.Preconditions;
import java.util.Iterator;
import java.util.NoSuchElementException;
import org.bukkit.Location;
@@ -53,6 +54,11 @@ public class BlockIterator implements Iterator<Block> {
*
*/
public BlockIterator(@NotNull World world, @NotNull Vector start, @NotNull Vector direction, double yOffset, int maxDistance) {
Preconditions.checkArgument(world != null, "world must not be null");
Preconditions.checkArgument(start != null, "start must not be null");
Preconditions.checkArgument(direction != null, "direction must not be null");
Preconditions.checkArgument(!direction.isZero(), "direction must have at least one non-zero component");
this.world = world;
this.maxDistance = maxDistance;

9
paper-api/src/main/java/org/bukkit/util/Vector.java
View File

@@ -365,6 +365,15 @@ public class Vector implements Cloneable, ConfigurationSerializable {
return this;
}
/**
* Check whether or not each component of this vector is equal to 0.
*
* @return true if equal to zero, false if at least one component is non-zero
*/
public boolean isZero() {
return x == 0 && y == 0 && z == 0;
}
/**
* Converts each component of value <code>-0.0</code> to <code>0.0</code>.
*