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153 changes: 153 additions & 0 deletions
153
...itFixesFolia/src/main/java/me/moomoo/anarchyexploitfixes/modules/elytra/ElytraHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| package me.moomoo.anarchyexploitfixes.modules.elytra; | ||
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|
||
| import com.github.benmanes.caffeine.cache.Cache; | ||
| import com.github.benmanes.caffeine.cache.Caffeine; | ||
| import me.moomoo.anarchyexploitfixes.AnarchyExploitFixes; | ||
| import me.moomoo.anarchyexploitfixes.config.Config; | ||
| import me.moomoo.anarchyexploitfixes.modules.AnarchyExploitFixesModule; | ||
| import me.moomoo.anarchyexploitfixes.utils.LocationUtil; | ||
| import org.apache.commons.math3.util.FastMath; | ||
| import org.bukkit.Chunk; | ||
| import org.bukkit.Location; | ||
| import org.bukkit.entity.Player; | ||
| import org.bukkit.event.EventHandler; | ||
| import org.bukkit.event.EventPriority; | ||
| import org.bukkit.event.HandlerList; | ||
| import org.bukkit.event.Listener; | ||
| import org.bukkit.event.player.PlayerJoinEvent; | ||
| import org.bukkit.event.player.PlayerMoveEvent; | ||
| import org.bukkit.event.world.ChunkLoadEvent; | ||
|
|
||
| import java.time.Duration; | ||
| import java.util.HashSet; | ||
| import java.util.Set; | ||
| import java.util.UUID; | ||
|
|
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| public class ElytraHelper implements AnarchyExploitFixesModule, Listener { | ||
| private static ElytraHelper instance; | ||
| private final AnarchyExploitFixes plugin; | ||
| private final Set<UUID> PLAYERS_NEAR_NEW_CHUNKS; | ||
| private final Cache<UUID, Double> PLAYER_SPEEDS_MOVE_EVENT; | ||
| private final Cache<UUID, Double> PLAYER_SPEEDS_INTERVAL; | ||
| private final Cache<UUID, Location> LAST_GLIDE_POS; | ||
| public static final double SPEED_TOLERANCE = 0.02; | ||
| private final int checkIntervalTicks; | ||
| private final boolean doIntervalCheck; | ||
|
|
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| public ElytraHelper() { | ||
| instance = this; | ||
| this.plugin = AnarchyExploitFixes.getInstance(); | ||
| this.PLAYERS_NEAR_NEW_CHUNKS = new HashSet<>(plugin.getServer().getOnlinePlayers().size()); | ||
| Config config = AnarchyExploitFixes.getConfiguration(); | ||
| this.doIntervalCheck = config.getBoolean("elytra.patch-generic-speedhacks.enable", true, | ||
| "Patches speed-limit bypass using generic speedhacks (Timer) by additionally checking player position every x ticks"); | ||
| final int tickInterval = config.getInt("elytra.patch-generic-speedhacks.check-interval-in-ticks", 10, | ||
| "Lower value means more accuracy but also more overhead."); | ||
| this.checkIntervalTicks = tickInterval > 0 ? tickInterval : 1; | ||
| final Duration cacheTime = Duration.ofMillis(FastMath.max(1000, tickInterval * 50L)); | ||
| this.PLAYER_SPEEDS_MOVE_EVENT = Caffeine.newBuilder().expireAfterWrite(cacheTime).build(); | ||
| this.PLAYER_SPEEDS_INTERVAL = Caffeine.newBuilder().expireAfterWrite(cacheTime).build(); | ||
| this.LAST_GLIDE_POS = Caffeine.newBuilder().expireAfterWrite(cacheTime).build(); | ||
| } | ||
|
|
||
| public static ElytraHelper getInstance() { | ||
| return instance; | ||
| } | ||
|
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||
| @Override | ||
| public String name() { | ||
| return "elytra-helper"; | ||
| } | ||
|
|
||
| @Override | ||
| public String category() { | ||
| return "elytra"; | ||
| } | ||
|
|
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| @Override | ||
| public void enable() { | ||
| plugin.getServer().getPluginManager().registerEvents(this, plugin); | ||
| } | ||
|
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| @Override | ||
| public boolean shouldEnable() { | ||
| Config config = AnarchyExploitFixes.getConfiguration(); | ||
| return config.getBoolean("elytra.elytra-speed.Global-Settings.enable", true) | ||
| || config.getBoolean("elytra.elytra-speed.At-Spawn.enable", false) | ||
| || config.getBoolean("elytra.elytra-speed.Nether-Ceiling.enable", true); | ||
| } | ||
|
|
||
| @Override | ||
| public void disable() { | ||
| HandlerList.unregisterAll(this); | ||
| } | ||
|
|
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| @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true) | ||
| private void onPlayerJoin(PlayerJoinEvent event) { | ||
| if (!doIntervalCheck) return; | ||
|
|
||
| Player player = event.getPlayer(); | ||
| player.getScheduler().runAtFixedRate(plugin, watchSpeed -> { | ||
| if (player.isGliding()) { | ||
| Location currentLocation = player.getLocation(); | ||
| Location lastLocation = LAST_GLIDE_POS.getIfPresent(player.getUniqueId()); | ||
| if (lastLocation == null) | ||
| lastLocation = currentLocation; | ||
| PLAYER_SPEEDS_INTERVAL.put(player.getUniqueId(), LocationUtil.getFlatDistance(lastLocation, currentLocation) / checkIntervalTicks); | ||
| LAST_GLIDE_POS.put(player.getUniqueId(), currentLocation); | ||
| } | ||
| }, null, checkIntervalTicks, checkIntervalTicks); | ||
| } | ||
|
|
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| @EventHandler(priority = EventPriority.LOW) | ||
| private void onPlayerMove(PlayerMoveEvent event) { | ||
| if (event.getPlayer().isGliding()) { | ||
| PLAYER_SPEEDS_MOVE_EVENT.put(event.getPlayer().getUniqueId(), LocationUtil.getFlatDistance(event.getFrom(), event.getTo())); | ||
| } | ||
| } | ||
|
|
||
| private double getFlatDistanceInChunks(Chunk chunk, Location location) { | ||
| return FastMath.hypot(chunk.getX() - location.getBlockX() >> 4, chunk.getZ() - location.getBlockZ() >> 4); | ||
| } | ||
|
|
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| @EventHandler(priority = EventPriority.LOW) | ||
| private void onChunkLoad(ChunkLoadEvent event) { | ||
| for (Player player : event.getWorld().getPlayers()) { | ||
| if (this.getFlatDistanceInChunks(event.getChunk(), player.getLocation()) < player.getViewDistance()) { | ||
| if (event.isNewChunk()) { | ||
| PLAYERS_NEAR_NEW_CHUNKS.add(player.getUniqueId()); | ||
| } else { | ||
| PLAYERS_NEAR_NEW_CHUNKS.remove(player.getUniqueId()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| public Location getFrom(PlayerMoveEvent event) { | ||
| final Location lastGlidePos = LAST_GLIDE_POS.getIfPresent(event.getPlayer().getUniqueId()); | ||
| return lastGlidePos != null ? lastGlidePos : event.getFrom(); | ||
| } | ||
|
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| public double getBlocksPerTick(PlayerMoveEvent event) { | ||
| final Double speedInterval = PLAYER_SPEEDS_INTERVAL.getIfPresent(event.getPlayer().getUniqueId()); | ||
| final Double speedMoveEvent = PLAYER_SPEEDS_MOVE_EVENT.getIfPresent(event.getPlayer().getUniqueId()); | ||
|
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| if (speedInterval != null) { | ||
| if (speedMoveEvent != null) { | ||
| return FastMath.max(speedInterval, speedMoveEvent); | ||
| } else { | ||
| return speedInterval; | ||
| } | ||
| } else { | ||
| if (speedMoveEvent != null) { | ||
| return speedMoveEvent; | ||
| } else { | ||
| return LocationUtil.getFlatDistance(event.getFrom(), event.getTo()); | ||
| } | ||
| } | ||
| } | ||
|
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| public boolean isInNewChunks(UUID playerUniqueId) { | ||
| return PLAYERS_NEAR_NEW_CHUNKS.contains(playerUniqueId); | ||
| } | ||
| } |
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