001/*
002 * PlotSquared, a land and world management plugin for Minecraft.
003 * Copyright (C) IntellectualSites <https://intellectualsites.com>
004 * Copyright (C) IntellectualSites team and contributors
005 *
006 * This program is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * This program is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
018 */
019package com.plotsquared.bukkit.listener;
020
021import com.google.inject.Inject;
022import com.plotsquared.bukkit.util.BukkitEntityUtil;
023import com.plotsquared.bukkit.util.BukkitUtil;
024import com.plotsquared.core.configuration.caption.TranslatableCaption;
025import com.plotsquared.core.location.Location;
026import com.plotsquared.core.permissions.Permission;
027import com.plotsquared.core.player.PlotPlayer;
028import com.plotsquared.core.plot.Plot;
029import com.plotsquared.core.plot.PlotArea;
030import com.plotsquared.core.plot.PlotHandler;
031import com.plotsquared.core.plot.flag.implementations.FishingFlag;
032import com.plotsquared.core.plot.flag.implementations.ProjectilesFlag;
033import com.plotsquared.core.plot.world.PlotAreaManager;
034import com.plotsquared.core.util.PlotFlagUtil;
035import net.kyori.adventure.text.minimessage.tag.Tag;
036import net.kyori.adventure.text.minimessage.tag.resolver.TagResolver;
037import org.bukkit.entity.Entity;
038import org.bukkit.entity.FishHook;
039import org.bukkit.entity.LivingEntity;
040import org.bukkit.entity.Player;
041import org.bukkit.entity.Projectile;
042import org.bukkit.entity.ThrownPotion;
043import org.bukkit.event.EventHandler;
044import org.bukkit.event.EventPriority;
045import org.bukkit.event.Listener;
046import org.bukkit.event.entity.LingeringPotionSplashEvent;
047import org.bukkit.event.entity.PotionSplashEvent;
048import org.bukkit.event.entity.ProjectileHitEvent;
049import org.bukkit.event.entity.ProjectileLaunchEvent;
050import org.bukkit.projectiles.BlockProjectileSource;
051import org.bukkit.projectiles.ProjectileSource;
052import org.checkerframework.checker.nullness.qual.NonNull;
053
054@SuppressWarnings("unused")
055public class ProjectileEventListener implements Listener {
056
057    private final PlotAreaManager plotAreaManager;
058
059    @Inject
060    public ProjectileEventListener(final @NonNull PlotAreaManager plotAreaManager) {
061        this.plotAreaManager = plotAreaManager;
062    }
063
064    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
065    public void onLingeringPotionSplash(LingeringPotionSplashEvent event) {
066        // Cancelling projectile hit events still results in area effect clouds.
067        // We need to cancel the splash events to get rid of those.
068        onProjectileHit(event);
069    }
070
071    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
072    public void onPotionSplash(PotionSplashEvent event) {
073        ThrownPotion damager = event.getPotion();
074        Location location = BukkitUtil.adapt(damager.getLocation());
075        if (!this.plotAreaManager.hasPlotArea(location.getWorldName())) {
076            return;
077        }
078        int count = 0;
079        for (LivingEntity victim : event.getAffectedEntities()) {
080            if (!BukkitEntityUtil.entityDamage(damager, victim)) {
081                event.setIntensity(victim, 0);
082                count++;
083            }
084        }
085        if (count > 0 && count == event.getAffectedEntities().size()) {
086            event.setCancelled(true);
087        } else {
088            // Cancelling projectile hit events still results in potions
089            // splashing in the world. We need to cancel the splash events to
090            // avoid that.
091            onProjectileHit(event);
092        }
093    }
094
095    @EventHandler(ignoreCancelled = true)
096    public void onProjectileLaunch(ProjectileLaunchEvent event) {
097        Projectile entity = event.getEntity();
098        ProjectileSource shooter = entity.getShooter();
099        if (!(shooter instanceof Player)) {
100            return;
101        }
102        Location location = BukkitUtil.adapt(entity.getLocation());
103        PlotArea area = location.getPlotArea();
104        if (area == null) {
105            return;
106        }
107        PlotPlayer<Player> pp = BukkitUtil.adapt((Player) shooter);
108        Plot plot = location.getOwnedPlot();
109
110        if (plot == null) {
111            if (!PlotFlagUtil.isAreaRoadFlagsAndFlagEquals(area, ProjectilesFlag.class, true) && !pp.hasPermission(
112                    Permission.PERMISSION_ADMIN_PROJECTILE_ROAD
113            )) {
114                pp.sendMessage(
115                        TranslatableCaption.of("permission.no_permission_event"),
116                        TagResolver.resolver(
117                                "node",
118                                Tag.inserting(Permission.PERMISSION_ADMIN_PROJECTILE_ROAD)
119                        )
120                );
121                entity.remove();
122                event.setCancelled(true);
123            }
124        } else if (!plot.hasOwner()) {
125            if (!pp.hasPermission(Permission.PERMISSION_ADMIN_PROJECTILE_UNOWNED)) {
126                pp.sendMessage(
127                        TranslatableCaption.of("permission.no_permission_event"),
128                        TagResolver.resolver(
129                                "node",
130                                Tag.inserting(Permission.PERMISSION_ADMIN_PROJECTILE_UNOWNED)
131                        )
132                );
133                entity.remove();
134                event.setCancelled(true);
135            }
136        } else if (!plot.isAdded(pp.getUUID())) {
137            if (entity instanceof FishHook) {
138                if (plot.getFlag(FishingFlag.class)) {
139                    return;
140                }
141            }
142            if (!plot.getFlag(ProjectilesFlag.class)) {
143                if (!pp.hasPermission(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
144                    pp.sendMessage(
145                            TranslatableCaption.of("permission.no_permission_event"),
146                            TagResolver.resolver(
147                                    "node",
148                                    Tag.inserting(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)
149                            )
150                    );
151                    entity.remove();
152                    event.setCancelled(true);
153                }
154            }
155        }
156    }
157
158    @EventHandler
159    public void onProjectileHit(ProjectileHitEvent event) {
160        Projectile entity = event.getEntity();
161        Location location = BukkitUtil.adapt(entity.getLocation());
162        if (!this.plotAreaManager.hasPlotArea(location.getWorldName())) {
163            return;
164        }
165        PlotArea area = location.getPlotArea();
166        if (area == null) {
167            return;
168        }
169        Plot plot = area.getPlot(location);
170        ProjectileSource shooter = entity.getShooter();
171        if (shooter instanceof Player) {
172            if (!((Player) shooter).isOnline()) {
173                if (plot != null) {
174                    if (plot.isAdded(((Player) shooter).getUniqueId()) || plot.getFlag(ProjectilesFlag.class)) {
175                        return;
176                    }
177                } else if (PlotFlagUtil.isAreaRoadFlagsAndFlagEquals(area, ProjectilesFlag.class, true)) {
178                    return;
179                }
180
181                entity.remove();
182                event.setCancelled(true);
183                return;
184            }
185
186            PlotPlayer<?> pp = BukkitUtil.adapt((Player) shooter);
187            if (plot == null) {
188                if (!PlotFlagUtil.isAreaRoadFlagsAndFlagEquals(area, ProjectilesFlag.class, true) && !pp.hasPermission(
189                        Permission.PERMISSION_ADMIN_PROJECTILE_UNOWNED
190                )) {
191                    entity.remove();
192                    event.setCancelled(true);
193                }
194                return;
195            }
196            if (plot.isAdded(pp.getUUID()) || pp.hasPermission(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER) || plot.getFlag(
197                    ProjectilesFlag.class) || (entity instanceof FishHook && plot.getFlag(
198                    FishingFlag.class))) {
199                return;
200            }
201            entity.remove();
202            event.setCancelled(true);
203            return;
204        }
205        if (!(shooter instanceof Entity) && shooter != null) {
206            if (plot == null) {
207                entity.remove();
208                event.setCancelled(true);
209                return;
210            }
211            Location sLoc =
212                    BukkitUtil.adapt(((BlockProjectileSource) shooter).getBlock().getLocation());
213            if (!area.contains(sLoc.getX(), sLoc.getZ())) {
214                entity.remove();
215                event.setCancelled(true);
216                return;
217            }
218            Plot sPlot = area.getOwnedPlotAbs(sLoc);
219            if (sPlot == null || !PlotHandler.sameOwners(plot, sPlot)) {
220                entity.remove();
221                event.setCancelled(true);
222            }
223        }
224    }
225
226}