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Paper/patches/api/0101-Expand-World.spawnParticle-API-and-add-Builder.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 29 Aug 2017 23:58:48 -0400
Subject: [PATCH] Expand World.spawnParticle API and add Builder
Adds ability to control who receives it and who is the source/sender (vanish API)
the standard API is to send the packet to everyone in the world, which is ineffecient.
This adds a new Builder API which is much friendlier to use.
diff --git a/src/main/java/com/destroystokyo/paper/ParticleBuilder.java b/src/main/java/com/destroystokyo/paper/ParticleBuilder.java
new file mode 100644
index 0000000000000000000000000000000000000000..52f639b838e8b49952c560f20bacbad0337f279c
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/ParticleBuilder.java
@@ -0,0 +1,583 @@
+package com.destroystokyo.paper;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+import it.unimi.dsi.fastutil.objects.ObjectArrayList;
+import org.bukkit.Color;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+import org.bukkit.util.NumberConversions;
+
+import java.util.Collection;
+import java.util.List;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Helps prepare a particle to be sent to players.
+ *
+ * Usage of the builder is preferred over the super long {@link World#spawnParticle(Particle, Location, int, double, double, double, double, Object)} API
+ */
+public class ParticleBuilder implements Cloneable {
+
+ private Particle particle;
+ private List<Player> receivers;
+ private Player source;
+ private Location location;
+ private int count = 1;
+ private double offsetX = 0, offsetY = 0, offsetZ = 0;
+ private double extra = 1;
+ private Object data;
+ private boolean force = true;
+
+ public ParticleBuilder(@NotNull Particle particle) {
+ this.particle = particle;
+ }
+
+ /**
+ * Sends the particle to all receiving players (or all). This method is safe to use
+ * Asynchronously
+ *
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder spawn() {
+ if (this.location == null) {
+ throw new IllegalStateException("Please specify location for this particle");
+ }
+ location.getWorld().spawnParticle(particle, receivers, source,
+ location.getX(), location.getY(), location.getZ(),
+ count, offsetX, offsetY, offsetZ, extra, data, force
+ );
+ return this;
+ }
+
+ /**
+ * @return The particle going to be sent
+ */
+ @NotNull
+ public Particle particle() {
+ return particle;
+ }
+
+ /**
+ * Changes what particle will be sent
+ *
+ * @param particle The particle
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder particle(@NotNull Particle particle) {
+ this.particle = particle;
+ return this;
+ }
+
+ /**
+ * @return List of players who will receive the particle, or null for all in world
+ */
+ @Nullable
+ public List<Player> receivers() {
+ return receivers;
+ }
+
+ /**
+ * Example use:
+ *
+ * builder.receivers(16); if (builder.hasReceivers()) { sendParticleAsync(builder); }
+ *
+ * @return If this particle is going to be sent to someone
+ */
+ public boolean hasReceivers() {
+ return (receivers == null && !location.getWorld().getPlayers().isEmpty()) || (
+ receivers != null && !receivers.isEmpty());
+ }
+
+ /**
+ * Sends this particle to all players in the world. This is rather silly and you should likely not
+ * be doing this.
+ *
+ * Just be a logical person and use receivers by radius or collection.
+ *
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder allPlayers() {
+ this.receivers = null;
+ return this;
+ }
+
+ /**
+ * @param receivers List of players to receive this particle, or null for all players in the
+ * world
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(@Nullable List<Player> receivers) {
+ // Had to keep this as we first made API List<> and not Collection, but removing this may break plugins compiled on older jars
+ // TODO: deprecate?
+ this.receivers = receivers != null ? Lists.newArrayList(receivers) : null;
+ return this;
+ }
+
+ /**
+ * @param receivers List of players to receive this particle, or null for all players in the
+ * world
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(@Nullable Collection<Player> receivers) {
+ this.receivers = receivers != null ? Lists.newArrayList(receivers) : null;
+ return this;
+ }
+
+ /**
+ * @param receivers List of players to be receive this particle, or null for all players in the
+ * world
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(@Nullable Player... receivers) {
+ this.receivers = receivers != null ? Lists.newArrayList(receivers) : null;
+ return this;
+ }
+
+ /**
+ * Selects all players within a cuboid selection around the particle location, within the
+ * specified bounding box. If you want a more spherical check, see {@link #receivers(int,
+ * boolean)}
+ *
+ * @param radius amount to add on all axis
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(int radius) {
+ return receivers(radius, radius);
+ }
+
+ /**
+ * Selects all players within the specified radius around the particle location. If byDistance is
+ * false, behavior uses cuboid selection the same as {@link #receivers(int, int)} If byDistance is
+ * true, radius is tested by distance in a spherical shape
+ *
+ * @param radius amount to add on each axis
+ * @param byDistance true to use a spherical radius, false to use a cuboid
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(int radius, boolean byDistance) {
+ if (!byDistance) {
+ return receivers(radius, radius, radius);
+ } else {
+ this.receivers = Lists.newArrayList();
+ for (Player nearbyPlayer : location.getWorld()
+ .getNearbyPlayers(location, radius, radius, radius)) {
+ Location loc = nearbyPlayer.getLocation();
+ double x = NumberConversions.square(location.getX() - loc.getX());
+ double y = NumberConversions.square(location.getY() - loc.getY());
+ double z = NumberConversions.square(location.getZ() - loc.getZ());
+ if (Math.sqrt(x + y + z) > radius) {
+ continue;
+ }
+ this.receivers.add(nearbyPlayer);
+ }
+ return this;
+ }
+ }
+
+ /**
+ * Selects all players within a cuboid selection around the particle location, within the
+ * specified bounding box. Allows specifying a different Y size than X and Z If you want a more
+ * cylinder check, see {@link #receivers(int, int, boolean)} If you want a more spherical check,
+ * see {@link #receivers(int, boolean)}
+ *
+ * @param xzRadius amount to add on the x/z axis
+ * @param yRadius amount to add on the y axis
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(int xzRadius, int yRadius) {
+ return receivers(xzRadius, yRadius, xzRadius);
+ }
+
+ /**
+ * Selects all players within the specified radius around the particle location. If byDistance is
+ * false, behavior uses cuboid selection the same as {@link #receivers(int, int)} If byDistance is
+ * true, radius is tested by distance on the y plane and on the x/z plane, in a cylinder shape.
+ *
+ * @param xzRadius amount to add on the x/z axis
+ * @param yRadius amount to add on the y axis
+ * @param byDistance true to use a cylinder shape, false to use cuboid
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(int xzRadius, int yRadius, boolean byDistance) {
+ if (!byDistance) {
+ return receivers(xzRadius, yRadius, xzRadius);
+ } else {
+ this.receivers = Lists.newArrayList();
+ for (Player nearbyPlayer : location.getWorld()
+ .getNearbyPlayers(location, xzRadius, yRadius, xzRadius)) {
+ Location loc = nearbyPlayer.getLocation();
+ if (Math.abs(loc.getY() - this.location.getY()) > yRadius) {
+ continue;
+ }
+ double x = NumberConversions.square(location.getX() - loc.getX());
+ double z = NumberConversions.square(location.getZ() - loc.getZ());
+ if (x + z > NumberConversions.square(xzRadius)) {
+ continue;
+ }
+ this.receivers.add(nearbyPlayer);
+ }
+ return this;
+ }
+ }
+
+ /**
+ * Selects all players within a cuboid selection around the particle location, within the
+ * specified bounding box. If you want a more cylinder check, see {@link #receivers(int, int,
+ * boolean)} If you want a more spherical check, see {@link #receivers(int, boolean)}
+ *
+ * @param xRadius amount to add on the x axis
+ * @param yRadius amount to add on the y axis
+ * @param zRadius amount to add on the z axis
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder receivers(int xRadius, int yRadius, int zRadius) {
+ if (location == null) {
+ throw new IllegalStateException("Please set location first");
+ }
+ return receivers(location.getWorld().getNearbyPlayers(location, xRadius, yRadius, zRadius));
+ }
+
+ /**
+ * @return The player considered the source of this particle (for Visibility concerns), or null
+ */
+ @Nullable
+ public Player source() {
+ return source;
+ }
+
+ /**
+ * Sets the source of this particle for visibility concerns (Vanish API)
+ *
+ * @param source The player who is considered the source
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder source(@Nullable Player source) {
+ this.source = source;
+ return this;
+ }
+
+ /**
+ * @return Location of where the particle will spawn
+ */
+ @Nullable
+ public Location location() {
+ return location;
+ }
+
+ /**
+ * Sets the location of where to spawn the particle
+ *
+ * @param location The location of the particle
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder location(@NotNull Location location) {
+ this.location = location.clone();
+ return this;
+ }
+
+ /**
+ * Sets the location of where to spawn the particle
+ *
+ * @param world World to spawn particle in
+ * @param x X location
+ * @param y Y location
+ * @param z Z location
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder location(@NotNull World world, double x, double y, double z) {
+ this.location = new Location(world, x, y, z);
+ return this;
+ }
+
+ /**
+ * @return Number of particles to spawn
+ */
+ public int count() {
+ return count;
+ }
+
+ /**
+ * Sets the number of particles to spawn
+ *
+ * @param count Number of particles
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder count(int count) {
+ this.count = count;
+ return this;
+ }
+
+ /**
+ * Particle offset X. Varies by particle on how this is used
+ *
+ * @return Particle offset X.
+ */
+ public double offsetX() {
+ return offsetX;
+ }
+
+ /**
+ * Particle offset Y. Varies by particle on how this is used
+ *
+ * @return Particle offset Y.
+ */
+ public double offsetY() {
+ return offsetY;
+ }
+
+ /**
+ * Particle offset Z. Varies by particle on how this is used
+ *
+ * @return Particle offset Z.
+ */
+ public double offsetZ() {
+ return offsetZ;
+ }
+
+ /**
+ * Sets the particle offset. Varies by particle on how this is used
+ *
+ * @param offsetX Particle offset X
+ * @param offsetY Particle offset Y
+ * @param offsetZ Particle offset Z
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder offset(double offsetX, double offsetY, double offsetZ) {
+ this.offsetX = offsetX;
+ this.offsetY = offsetY;
+ this.offsetZ = offsetZ;
+ return this;
+ }
+
+ /**
+ * Gets the Particle extra data. Varies by particle on how this is used
+ *
+ * @return the extra particle data
+ */
+ public double extra() {
+ return extra;
+ }
+
+ /**
+ * Sets the particle extra data. Varies by particle on how this is used
+ *
+ * @param extra the extra particle data
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder extra(double extra) {
+ this.extra = extra;
+ return this;
+ }
+
+ /**
+ * Gets the particle custom data. Varies by particle on how this is used
+ *
+ * @param <T> The Particle data type
+ * @return the ParticleData for this particle
+ */
+ @Nullable
+ public <T> T data() {
+ //noinspection unchecked
+ return (T) data;
+ }
+
+ /**
+ * Sets the particle custom data. Varies by particle on how this is used
+ *
+ * @param data The new particle data
+ * @param <T> The Particle data type
+ * @return a reference to this object.
+ */
+ @NotNull
+ public <T> ParticleBuilder data(@Nullable T data) {
+ this.data = data;
+ return this;
+ }
+
+ /**
+ * @return whether the particle is forcefully shown to players.
+ */
+ public boolean force() {
+ return force;
+ }
+
+ /**
+ * Sets whether the particle is forcefully shown to the player. If forced, the particle will show
+ * faraway, as far as the player's view distance allows. If false, the particle will show
+ * according to the client's particle settings.
+ *
+ * @param force true to force, false for normal
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder force(boolean force) {
+ this.force = force;
+ return this;
+ }
+
+ /**
+ * Sets the particle Color.
+ * Only valid for {@link Particle#DUST}.
+ *
+ * @param color the new particle color
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder color(@Nullable Color color) {
+ return color(color, 1);
+ }
+
+ /**
+ * Sets the particle Color and size.
+ * Only valid for {@link Particle#DUST}.
+ *
+ * @param color the new particle color
+ * @param size the size of the particle
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder color(@Nullable Color color, float size) {
+ if (particle != Particle.DUST && color != null) {
+ throw new IllegalStateException("Color may only be set on particle DUST.");
+ }
+
+ // We don't officially support reusing these objects, but here we go
+ if (color == null) {
+ if (data instanceof Particle.DustOptions) {
+ return data(null);
+ } else {
+ return this;
+ }
+ }
+
+ return data(new Particle.DustOptions(color, size));
+ }
+
+ /**
+ * Sets the particle Color.
+ * Only valid for {@link Particle#DUST}.
+ *
+ * @param r red color component
+ * @param g green color component
+ * @param b blue color component
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder color(int r, int g, int b) {
+ return color(Color.fromRGB(r, g, b));
+ }
+
+ /**
+ * Sets the particle Color.
+ * Only valid for {@link Particle#DUST}.
+ *
+ * @param rgb an integer representing the red, green, and blue color components
+ * @return a reference to this object.
+ */
+ @NotNull
+ public ParticleBuilder color(final int rgb) {
+ return color(Color.fromRGB(rgb));
+ }
+
+ /**
+ * Sets the particle Color Transition.
+ * Only valid for {@link Particle#DUST_COLOR_TRANSITION}.
+ *
+ * @param fromColor the new particle from color
+ * @param toColor the new particle to color
+ * @return a reference to this object.
+ * @throws IllegalArgumentException if the particle builder's {@link #particle()} isn't {@link Particle#DUST_COLOR_TRANSITION}.
+ */
+ @NotNull
+ public ParticleBuilder colorTransition(@NotNull final Color fromColor, @NotNull final Color toColor) {
+ return colorTransition(fromColor, toColor, 1);
+ }
+
+ /**
+ * Sets the particle Color Transition.
+ * Only valid for {@link Particle#DUST_COLOR_TRANSITION}.
+ *
+ * @param fromRed red color component for the from color
+ * @param fromGreen green color component for the from color
+ * @param fromBlue blue color component for the from color
+ * @param toRed red color component for the to color
+ * @param toGreen green color component for the to color
+ * @param toBlue blue color component for the to color
+ * @return a reference to this object.
+ * @throws IllegalArgumentException if the particle builder's {@link #particle()} isn't {@link Particle#DUST_COLOR_TRANSITION}.
+ */
+ @NotNull
+ public ParticleBuilder colorTransition(final int fromRed, final int fromGreen, final int fromBlue,
+ final int toRed, final int toGreen, final int toBlue) {
+ return colorTransition(Color.fromRGB(fromRed, fromGreen, fromBlue), Color.fromRGB(toRed, toGreen, toBlue));
+ }
+
+ /**
+ * Sets the particle Color Transition.
+ * Only valid for {@link Particle#DUST_COLOR_TRANSITION}.
+ *
+ * @param fromRgb an integer representing the red, green, and blue color components for the from color
+ * @param toRgb an integer representing the red, green, and blue color components for the to color
+ * @return a reference to this object.
+ * @throws IllegalArgumentException if the particle builder's {@link #particle()} isn't {@link Particle#DUST_COLOR_TRANSITION}.
+ */
+ @NotNull
+ public ParticleBuilder colorTransition(final int fromRgb, final int toRgb) {
+ return colorTransition(Color.fromRGB(fromRgb), Color.fromRGB(toRgb));
+ }
+
+ /**
+ * Sets the particle Color Transition and size.
+ * Only valid for {@link Particle#DUST_COLOR_TRANSITION}.
+ *
+ * @param fromColor the new particle color for the from color.
+ * @param toColor the new particle color for the to color.
+ * @param size the size of the particle
+ * @return a reference to this object.
+ * @throws IllegalArgumentException if the particle builder's {@link #particle()} isn't {@link Particle#DUST_COLOR_TRANSITION}.
+ */
+ @NotNull
+ public ParticleBuilder colorTransition(@NotNull final Color fromColor,
+ @NotNull final Color toColor,
+ final float size) {
+ Preconditions.checkArgument(fromColor != null, "Cannot define color transition with null fromColor.");
+ Preconditions.checkArgument(toColor != null, "Cannot define color transition with null toColor.");
+ Preconditions.checkArgument(this.particle() == Particle.DUST_COLOR_TRANSITION, "Can only define a color transition on particle DUST_COLOR_TRANSITION.");
+ return data(new Particle.DustTransition(fromColor, toColor, size));
+ }
+
+ @NotNull
+ @Override
+ public ParticleBuilder clone() {
+ try {
+ final ParticleBuilder builder = (ParticleBuilder) super.clone();
+ if (this.location != null) builder.location = this.location.clone();
+ if (this.receivers != null) builder.receivers = new ObjectArrayList<>(this.receivers);
+ return builder;
+ } catch (final CloneNotSupportedException e) {
+ throw new AssertionError();
+ }
+ }
+}
diff --git a/src/main/java/org/bukkit/Particle.java b/src/main/java/org/bukkit/Particle.java
index 4a06ed9c769acb2eb4c6f4b76c84dc2e63176010..c5e3a8143a166d426d87fa3d0f0b3d4f3d4bff1a 100644
--- a/src/main/java/org/bukkit/Particle.java
+++ b/src/main/java/org/bukkit/Particle.java
@@ -208,6 +208,18 @@ public enum Particle implements Keyed {
return key;
}
+ // Paper start - Particle API expansion
+ /**
+ * Creates a {@link com.destroystokyo.paper.ParticleBuilder}
+ *
+ * @return a {@link com.destroystokyo.paper.ParticleBuilder} for the particle
+ */
+ @NotNull
+ public com.destroystokyo.paper.ParticleBuilder builder() {
+ return new com.destroystokyo.paper.ParticleBuilder(this);
+ }
+ // Paper end
+
/**
* Options which can be applied to dust particles - a particle
* color and size.
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index c489140bffdfdfa1e34e71489d308ed10cf10b21..b6d08d50c26aa0e69d2479d188fc3c690e8ed357 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -2921,7 +2921,57 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
* @param data the data to use for the particle or null,
* the type of this depends on {@link Particle#getDataType()}
*/
- public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, @Nullable T data);
+ public default <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, @Nullable T data) { spawnParticle(particle, null, null, x, y, z, count, offsetX, offsetY, offsetZ, extra, data, true); }// Paper start - Expand Particle API
+ /**
+ * Spawns the particle (the number of times specified by count)
+ * at the target location. The position of each particle will be
+ * randomized positively and negatively by the offset parameters
+ * on each axis.
+ *
+ * @param particle the particle to spawn
+ * @param receivers List of players to receive the particles, or null for all in world
+ * @param source Source of the particles to be used in visibility checks, or null if no player source
+ * @param x the position on the x axis to spawn at
+ * @param y the position on the y axis to spawn at
+ * @param z the position on the z axis to spawn at
+ * @param count the number of particles
+ * @param offsetX the maximum random offset on the X axis
+ * @param offsetY the maximum random offset on the Y axis
+ * @param offsetZ the maximum random offset on the Z axis
+ * @param extra the extra data for this particle, depends on the
+ * particle used (normally speed)
+ * @param data the data to use for the particle or null,
+ * the type of this depends on {@link Particle#getDataType()}
+ * @param <T> Type
+ */
+ public default <T> void spawnParticle(@NotNull Particle particle, @Nullable List<Player> receivers, @NotNull Player source, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, @Nullable T data) { spawnParticle(particle, receivers, source, x, y, z, count, offsetX, offsetY, offsetZ, extra, data, true); }
+ /**
+ * Spawns the particle (the number of times specified by count)
+ * at the target location. The position of each particle will be
+ * randomized positively and negatively by the offset parameters
+ * on each axis.
+ *
+ * @param particle the particle to spawn
+ * @param receivers List of players to receive the particles, or null for all in world
+ * @param source Source of the particles to be used in visibility checks, or null if no player source
+ * @param x the position on the x axis to spawn at
+ * @param y the position on the y axis to spawn at
+ * @param z the position on the z axis to spawn at
+ * @param count the number of particles
+ * @param offsetX the maximum random offset on the X axis
+ * @param offsetY the maximum random offset on the Y axis
+ * @param offsetZ the maximum random offset on the Z axis
+ * @param extra the extra data for this particle, depends on the
+ * particle used (normally speed)
+ * @param data the data to use for the particle or null,
+ * the type of this depends on {@link Particle#getDataType()}
+ * @param <T> Type
+ * @param force allows the particle to be seen further away from the player
+ * and shows to players using any vanilla client particle settings
+ */
+ public <T> void spawnParticle(@NotNull Particle particle, @Nullable List<Player> receivers, @Nullable Player source, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, @Nullable T data, boolean force);
+ // Paper end
+
/**
* Spawns the particle (the number of times specified by count)
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