428 lines
16 KiB
Java
428 lines
16 KiB
Java
package net.minecraft.world.entity.ai.navigation;
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import com.google.common.collect.ImmutableSet;
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import java.util.Set;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import javax.annotation.Nullable;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Vec3i;
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import net.minecraft.network.protocol.game.DebugPackets;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.util.Mth;
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import net.minecraft.util.profiling.Profiler;
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import net.minecraft.util.profiling.ProfilerFiller;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.Mob;
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import net.minecraft.world.entity.ai.attributes.Attributes;
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import net.minecraft.world.level.ClipContext;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.PathNavigationRegion;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.pathfinder.Node;
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import net.minecraft.world.level.pathfinder.NodeEvaluator;
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import net.minecraft.world.level.pathfinder.Path;
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import net.minecraft.world.level.pathfinder.PathFinder;
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import net.minecraft.world.level.pathfinder.PathType;
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import net.minecraft.world.level.pathfinder.WalkNodeEvaluator;
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import net.minecraft.world.phys.HitResult;
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import net.minecraft.world.phys.Vec3;
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public abstract class PathNavigation {
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private static final int MAX_TIME_RECOMPUTE = 20;
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private static final int STUCK_CHECK_INTERVAL = 100;
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private static final float STUCK_THRESHOLD_DISTANCE_FACTOR = 0.25F;
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protected final Mob mob;
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protected final Level level;
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@Nullable
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protected Path path;
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protected double speedModifier;
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protected int tick;
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protected int lastStuckCheck;
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protected Vec3 lastStuckCheckPos = Vec3.ZERO;
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protected Vec3i timeoutCachedNode = Vec3i.ZERO;
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protected long timeoutTimer;
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protected long lastTimeoutCheck;
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protected double timeoutLimit;
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protected float maxDistanceToWaypoint = 0.5F;
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protected boolean hasDelayedRecomputation;
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protected long timeLastRecompute;
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protected NodeEvaluator nodeEvaluator;
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@Nullable
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private BlockPos targetPos;
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private int reachRange;
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private float maxVisitedNodesMultiplier = 1.0F;
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private final PathFinder pathFinder;
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private boolean isStuck;
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private float requiredPathLength = 16.0F;
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public PathNavigation(Mob p_26515_, Level p_26516_) {
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this.mob = p_26515_;
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this.level = p_26516_;
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this.pathFinder = this.createPathFinder(Mth.floor(p_26515_.getAttributeBaseValue(Attributes.FOLLOW_RANGE) * 16.0));
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}
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public void updatePathfinderMaxVisitedNodes() {
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int i = Mth.floor(this.getMaxPathLength() * 16.0F);
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this.pathFinder.setMaxVisitedNodes(i);
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}
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public void setRequiredPathLength(float p_370213_) {
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this.requiredPathLength = p_370213_;
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this.updatePathfinderMaxVisitedNodes();
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}
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private float getMaxPathLength() {
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return Math.max((float)this.mob.getAttributeValue(Attributes.FOLLOW_RANGE), this.requiredPathLength);
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}
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public void resetMaxVisitedNodesMultiplier() {
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this.maxVisitedNodesMultiplier = 1.0F;
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}
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public void setMaxVisitedNodesMultiplier(float p_26530_) {
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this.maxVisitedNodesMultiplier = p_26530_;
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}
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@Nullable
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public BlockPos getTargetPos() {
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return this.targetPos;
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}
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protected abstract PathFinder createPathFinder(int p_26531_);
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public void setSpeedModifier(double p_26518_) {
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this.speedModifier = p_26518_;
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}
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public void recomputePath() {
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if (this.level.getGameTime() - this.timeLastRecompute > 20L) {
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if (this.targetPos != null) {
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this.path = null;
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this.path = this.createPath(this.targetPos, this.reachRange);
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this.timeLastRecompute = this.level.getGameTime();
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this.hasDelayedRecomputation = false;
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}
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} else {
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this.hasDelayedRecomputation = true;
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}
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}
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@Nullable
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public final Path createPath(double p_26525_, double p_26526_, double p_26527_, int p_26528_) {
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return this.createPath(BlockPos.containing(p_26525_, p_26526_, p_26527_), p_26528_);
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}
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@Nullable
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public Path createPath(Stream<BlockPos> p_26557_, int p_26558_) {
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return this.createPath(p_26557_.collect(Collectors.toSet()), 8, false, p_26558_);
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}
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@Nullable
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public Path createPath(Set<BlockPos> p_26549_, int p_26550_) {
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return this.createPath(p_26549_, 8, false, p_26550_);
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}
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@Nullable
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public Path createPath(BlockPos p_26546_, int p_26547_) {
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return this.createPath(ImmutableSet.of(p_26546_), 8, false, p_26547_);
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}
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@Nullable
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public Path createPath(BlockPos p_148219_, int p_148220_, int p_148221_) {
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return this.createPath(ImmutableSet.of(p_148219_), 8, false, p_148220_, p_148221_);
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}
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@Nullable
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public Path createPath(Entity p_26534_, int p_26535_) {
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return this.createPath(ImmutableSet.of(p_26534_.blockPosition()), 16, true, p_26535_);
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}
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@Nullable
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protected Path createPath(Set<BlockPos> p_26552_, int p_26553_, boolean p_26554_, int p_26555_) {
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return this.createPath(p_26552_, p_26553_, p_26554_, p_26555_, this.getMaxPathLength());
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}
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@Nullable
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protected Path createPath(Set<BlockPos> p_148223_, int p_148224_, boolean p_148225_, int p_148226_, float p_148227_) {
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if (p_148223_.isEmpty()) {
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return null;
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} else if (this.mob.getY() < this.level.getMinY()) {
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return null;
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} else if (!this.canUpdatePath()) {
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return null;
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} else if (this.path != null && !this.path.isDone() && p_148223_.contains(this.targetPos)) {
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return this.path;
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} else {
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ProfilerFiller profilerfiller = Profiler.get();
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profilerfiller.push("pathfind");
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BlockPos blockpos = p_148225_ ? this.mob.blockPosition().above() : this.mob.blockPosition();
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int i = (int)(p_148227_ + p_148224_);
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PathNavigationRegion pathnavigationregion = new PathNavigationRegion(this.level, blockpos.offset(-i, -i, -i), blockpos.offset(i, i, i));
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Path path = this.pathFinder.findPath(pathnavigationregion, this.mob, p_148223_, p_148227_, p_148226_, this.maxVisitedNodesMultiplier);
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profilerfiller.pop();
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if (path != null && path.getTarget() != null) {
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this.targetPos = path.getTarget();
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this.reachRange = p_148226_;
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this.resetStuckTimeout();
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}
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return path;
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}
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}
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public boolean moveTo(double p_26520_, double p_26521_, double p_26522_, double p_26523_) {
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return this.moveTo(this.createPath(p_26520_, p_26521_, p_26522_, 1), p_26523_);
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}
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public boolean moveTo(double p_330495_, double p_329397_, double p_335206_, int p_329667_, double p_331294_) {
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return this.moveTo(this.createPath(p_330495_, p_329397_, p_335206_, p_329667_), p_331294_);
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}
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public boolean moveTo(Entity p_26532_, double p_26533_) {
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Path path = this.createPath(p_26532_, 1);
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return path != null && this.moveTo(path, p_26533_);
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}
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public boolean moveTo(@Nullable Path p_26537_, double p_26538_) {
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if (p_26537_ == null) {
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this.path = null;
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return false;
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} else {
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if (!p_26537_.sameAs(this.path)) {
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this.path = p_26537_;
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}
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if (this.isDone()) {
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return false;
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} else {
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this.trimPath();
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if (this.path.getNodeCount() <= 0) {
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return false;
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} else {
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this.speedModifier = p_26538_;
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Vec3 vec3 = this.getTempMobPos();
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this.lastStuckCheck = this.tick;
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this.lastStuckCheckPos = vec3;
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return true;
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}
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}
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}
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}
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@Nullable
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public Path getPath() {
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return this.path;
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}
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public void tick() {
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this.tick++;
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if (this.hasDelayedRecomputation) {
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this.recomputePath();
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}
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if (!this.isDone()) {
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if (this.canUpdatePath()) {
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this.followThePath();
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} else if (this.path != null && !this.path.isDone()) {
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Vec3 vec3 = this.getTempMobPos();
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Vec3 vec31 = this.path.getNextEntityPos(this.mob);
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if (vec3.y > vec31.y
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&& !this.mob.onGround()
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&& Mth.floor(vec3.x) == Mth.floor(vec31.x)
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&& Mth.floor(vec3.z) == Mth.floor(vec31.z)) {
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this.path.advance();
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}
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}
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DebugPackets.sendPathFindingPacket(this.level, this.mob, this.path, this.maxDistanceToWaypoint);
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if (!this.isDone()) {
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Vec3 vec32 = this.path.getNextEntityPos(this.mob);
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this.mob.getMoveControl().setWantedPosition(vec32.x, this.getGroundY(vec32), vec32.z, this.speedModifier);
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}
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}
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}
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protected double getGroundY(Vec3 p_186132_) {
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BlockPos blockpos = BlockPos.containing(p_186132_);
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return this.level.getBlockState(blockpos.below()).isAir() ? p_186132_.y : WalkNodeEvaluator.getFloorLevel(this.level, blockpos);
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}
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protected void followThePath() {
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Vec3 vec3 = this.getTempMobPos();
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this.maxDistanceToWaypoint = this.mob.getBbWidth() > 0.75F ? this.mob.getBbWidth() / 2.0F : 0.75F - this.mob.getBbWidth() / 2.0F;
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Vec3i vec3i = this.path.getNextNodePos();
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double d0 = Math.abs(this.mob.getX() - (vec3i.getX() + 0.5));
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double d1 = Math.abs(this.mob.getY() - vec3i.getY());
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double d2 = Math.abs(this.mob.getZ() - (vec3i.getZ() + 0.5));
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boolean flag = d0 < this.maxDistanceToWaypoint && d2 < this.maxDistanceToWaypoint && d1 < 1.0;
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if (flag || this.canCutCorner(this.path.getNextNode().type) && this.shouldTargetNextNodeInDirection(vec3)) {
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this.path.advance();
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}
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this.doStuckDetection(vec3);
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}
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private boolean shouldTargetNextNodeInDirection(Vec3 p_26560_) {
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if (this.path.getNextNodeIndex() + 1 >= this.path.getNodeCount()) {
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return false;
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} else {
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Vec3 vec3 = Vec3.atBottomCenterOf(this.path.getNextNodePos());
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if (!p_26560_.closerThan(vec3, 2.0)) {
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return false;
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} else if (this.canMoveDirectly(p_26560_, this.path.getNextEntityPos(this.mob))) {
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return true;
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} else {
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Vec3 vec31 = Vec3.atBottomCenterOf(this.path.getNodePos(this.path.getNextNodeIndex() + 1));
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Vec3 vec32 = vec3.subtract(p_26560_);
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Vec3 vec33 = vec31.subtract(p_26560_);
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double d0 = vec32.lengthSqr();
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double d1 = vec33.lengthSqr();
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boolean flag = d1 < d0;
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boolean flag1 = d0 < 0.5;
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if (!flag && !flag1) {
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return false;
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} else {
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Vec3 vec34 = vec32.normalize();
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Vec3 vec35 = vec33.normalize();
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return vec35.dot(vec34) < 0.0;
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}
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}
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}
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}
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protected void doStuckDetection(Vec3 p_26539_) {
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if (this.tick - this.lastStuckCheck > 100) {
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float f = this.mob.getSpeed() >= 1.0F ? this.mob.getSpeed() : this.mob.getSpeed() * this.mob.getSpeed();
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float f1 = f * 100.0F * 0.25F;
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if (p_26539_.distanceToSqr(this.lastStuckCheckPos) < f1 * f1) {
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this.isStuck = true;
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this.stop();
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} else {
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this.isStuck = false;
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}
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this.lastStuckCheck = this.tick;
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this.lastStuckCheckPos = p_26539_;
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}
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if (this.path != null && !this.path.isDone()) {
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Vec3i vec3i = this.path.getNextNodePos();
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long i = this.level.getGameTime();
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if (vec3i.equals(this.timeoutCachedNode)) {
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this.timeoutTimer = this.timeoutTimer + (i - this.lastTimeoutCheck);
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} else {
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this.timeoutCachedNode = vec3i;
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double d0 = p_26539_.distanceTo(Vec3.atBottomCenterOf(this.timeoutCachedNode));
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this.timeoutLimit = this.mob.getSpeed() > 0.0F ? d0 / this.mob.getSpeed() * 20.0 : 0.0;
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}
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if (this.timeoutLimit > 0.0 && this.timeoutTimer > this.timeoutLimit * 3.0) {
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this.timeoutPath();
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}
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this.lastTimeoutCheck = i;
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}
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}
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private void timeoutPath() {
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this.resetStuckTimeout();
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this.stop();
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}
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private void resetStuckTimeout() {
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this.timeoutCachedNode = Vec3i.ZERO;
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this.timeoutTimer = 0L;
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this.timeoutLimit = 0.0;
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this.isStuck = false;
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}
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public boolean isDone() {
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return this.path == null || this.path.isDone();
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}
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public boolean isInProgress() {
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return !this.isDone();
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}
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public void stop() {
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this.path = null;
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}
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protected abstract Vec3 getTempMobPos();
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protected abstract boolean canUpdatePath();
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protected void trimPath() {
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if (this.path != null) {
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for (int i = 0; i < this.path.getNodeCount(); i++) {
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Node node = this.path.getNode(i);
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Node node1 = i + 1 < this.path.getNodeCount() ? this.path.getNode(i + 1) : null;
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BlockState blockstate = this.level.getBlockState(new BlockPos(node.x, node.y, node.z));
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if (blockstate.is(BlockTags.CAULDRONS)) {
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this.path.replaceNode(i, node.cloneAndMove(node.x, node.y + 1, node.z));
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if (node1 != null && node.y >= node1.y) {
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this.path.replaceNode(i + 1, node.cloneAndMove(node1.x, node.y + 1, node1.z));
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}
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}
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}
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}
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}
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protected boolean canMoveDirectly(Vec3 p_186133_, Vec3 p_186134_) {
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return false;
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}
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public boolean canCutCorner(PathType p_334253_) {
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return p_334253_ != PathType.DANGER_FIRE && p_334253_ != PathType.DANGER_OTHER && p_334253_ != PathType.WALKABLE_DOOR;
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}
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protected static boolean isClearForMovementBetween(Mob p_262599_, Vec3 p_262674_, Vec3 p_262586_, boolean p_262676_) {
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Vec3 vec3 = new Vec3(p_262586_.x, p_262586_.y + p_262599_.getBbHeight() * 0.5, p_262586_.z);
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return p_262599_.level()
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.clip(new ClipContext(p_262674_, vec3, ClipContext.Block.COLLIDER, p_262676_ ? ClipContext.Fluid.ANY : ClipContext.Fluid.NONE, p_262599_))
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.getType()
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== HitResult.Type.MISS;
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}
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public boolean isStableDestination(BlockPos p_26545_) {
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BlockPos blockpos = p_26545_.below();
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return this.level.getBlockState(blockpos).isSolidRender();
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}
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public NodeEvaluator getNodeEvaluator() {
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return this.nodeEvaluator;
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}
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public void setCanFloat(boolean p_26563_) {
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this.nodeEvaluator.setCanFloat(p_26563_);
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}
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public boolean canFloat() {
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return this.nodeEvaluator.canFloat();
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}
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public boolean shouldRecomputePath(BlockPos p_200904_) {
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if (this.hasDelayedRecomputation) {
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return false;
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} else if (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0) {
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Node node = this.path.getEndNode();
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Vec3 vec3 = new Vec3(
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(node.x + this.mob.getX()) / 2.0,
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(node.y + this.mob.getY()) / 2.0,
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(node.z + this.mob.getZ()) / 2.0
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);
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return p_200904_.closerToCenterThan(vec3, this.path.getNodeCount() - this.path.getNextNodeIndex());
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} else {
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return false;
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}
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}
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public float getMaxDistanceToWaypoint() {
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return this.maxDistanceToWaypoint;
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}
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public boolean isStuck() {
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return this.isStuck;
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}
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} |