From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar Date: Sun, 9 Sep 2018 13:30:00 -0400 Subject: [PATCH] Mob Pathfinding API Implements Pathfinding API for mobs diff --git a/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java b/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java new file mode 100644 index 0000000000000000000000000000000000000000..8c9f0c6c38627beded373ca29f1989ae3ba6f873 --- /dev/null +++ b/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java @@ -0,0 +1,139 @@ +package com.destroystokyo.paper.entity; + +import org.apache.commons.lang.Validate; +import org.bukkit.Location; +import org.bukkit.craftbukkit.entity.CraftLivingEntity; +import org.bukkit.entity.LivingEntity; +import org.bukkit.entity.Mob; +import javax.annotation.Nonnull; +import javax.annotation.Nullable; +import net.minecraft.world.level.pathfinder.Node; +import net.minecraft.world.level.pathfinder.Path; +import java.util.ArrayList; +import java.util.List; + +public class PaperPathfinder implements com.destroystokyo.paper.entity.Pathfinder { + + private final net.minecraft.world.entity.Mob entity; + + public PaperPathfinder(net.minecraft.world.entity.Mob entity) { + this.entity = entity; + } + + @Override + public Mob getEntity() { + return entity.getBukkitMob(); + } + + @Override + public void stopPathfinding() { + entity.getNavigation().stop(); + } + + @Override + public boolean hasPath() { + return entity.getNavigation().getPath() != null; + } + + @Nullable + @Override + public PathResult getCurrentPath() { + Path path = entity.getNavigation().getPath(); + return path != null ? new PaperPathResult(path) : null; + } + + @Nullable + @Override + public PathResult findPath(Location loc) { + Validate.notNull(loc, "Location can not be null"); + Path path = entity.getNavigation().createPath(loc.getX(), loc.getY(), loc.getZ(), 0); + return path != null ? new PaperPathResult(path) : null; + } + + @Nullable + @Override + public PathResult findPath(LivingEntity target) { + Validate.notNull(target, "Target can not be null"); + Path path = entity.getNavigation().createPath(((CraftLivingEntity) target).getHandle(), 0); + return path != null ? new PaperPathResult(path) : null; + } + + @Override + public boolean moveTo(@Nonnull PathResult path, double speed) { + Validate.notNull(path, "PathResult can not be null"); + Path pathEntity = ((PaperPathResult) path).path; + return entity.getNavigation().moveTo(pathEntity, speed); + } + + @Override + public boolean canOpenDoors() { + return entity.getNavigation().pathFinder.nodeEvaluator.canOpenDoors(); + } + + @Override + public void setCanOpenDoors(boolean canOpenDoors) { + entity.getNavigation().pathFinder.nodeEvaluator.setCanOpenDoors(canOpenDoors); + } + + @Override + public boolean canPassDoors() { + return entity.getNavigation().pathFinder.nodeEvaluator.canPassDoors(); + } + + @Override + public void setCanPassDoors(boolean canPassDoors) { + entity.getNavigation().pathFinder.nodeEvaluator.setCanPassDoors(canPassDoors); + } + + @Override + public boolean canFloat() { + return entity.getNavigation().pathFinder.nodeEvaluator.canFloat(); + } + + @Override + public void setCanFloat(boolean canFloat) { + entity.getNavigation().pathFinder.nodeEvaluator.setCanFloat(canFloat); + } + + public class PaperPathResult implements com.destroystokyo.paper.entity.PaperPathfinder.PathResult { + + private final Path path; + PaperPathResult(Path path) { + this.path = path; + } + + @Nullable + @Override + public Location getFinalPoint() { + Node point = path.getEndNode(); + return point != null ? toLoc(point) : null; + } + + @Override + public List getPoints() { + List points = new ArrayList<>(); + for (Node point : path.nodes) { + points.add(toLoc(point)); + } + return points; + } + + @Override + public int getNextPointIndex() { + return path.getNextNodeIndex(); + } + + @Nullable + @Override + public Location getNextPoint() { + if (!path.hasNext()) { + return null; + } + return toLoc(path.nodes.get(path.getNextNodeIndex())); + } + } + + private Location toLoc(Node point) { + return new Location(entity.level.getWorld(), point.x, point.y, point.z); + } +} diff --git a/src/main/java/net/minecraft/world/level/pathfinder/Path.java b/src/main/java/net/minecraft/world/level/pathfinder/Path.java index 5f59b2bd26571d16e04f2b6a5ded8f8fb7c4e31e..bdc221f5b1eccff017c5eace11f4ea2540329f1d 100644 --- a/src/main/java/net/minecraft/world/level/pathfinder/Path.java +++ b/src/main/java/net/minecraft/world/level/pathfinder/Path.java @@ -21,6 +21,7 @@ public class Path { private final BlockPos target; private final float distToTarget; private final boolean reached; + public boolean hasNext() { return getNextNodeIndex() < this.nodes.size(); } // Paper public Path(List nodes, BlockPos target, boolean reachesTarget) { this.nodes = nodes; diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java index 219bdf53a860628335efe92d4f294a5fa52087b2..b0d348061487110993b6c4c8a7dc7208f27361b3 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java @@ -12,8 +12,11 @@ import org.bukkit.loot.LootTable; public abstract class CraftMob extends CraftLivingEntity implements Mob { public CraftMob(CraftServer server, net.minecraft.world.entity.Mob entity) { super(server, entity); + paperPathfinder = new com.destroystokyo.paper.entity.PaperPathfinder(entity); // Paper } + private final com.destroystokyo.paper.entity.PaperPathfinder paperPathfinder; // Paper + @Override public com.destroystokyo.paper.entity.Pathfinder getPathfinder() { return paperPathfinder; } // Paper @Override public void setTarget(LivingEntity target) { Preconditions.checkState(!this.getHandle().generation, "Cannot set target during world generation");