AtlasMediaGroup/TotalFreedomMod
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Merge pull request #326 from AtlasMediaGroup/fix/movement-validator

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Miscellaneous improvements to the movement validator
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Paldiu 2023-07-04 17:24:55 -05:00 committed by GitHub
commit 00351f1163
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1 changed files with 25 additions and 108 deletions
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135
src/main/java/me/totalfreedom/totalfreedommod/MovementValidator.java
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@ -1,25 +1,17 @@
package me.totalfreedom.totalfreedommod;
import com.google.common.collect.Multimap;
import io.papermc.lib.PaperLib;
import java.util.Collection;
import java.util.Map;
import java.util.Objects;
import org.bukkit.ChatColor;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.format.NamedTextColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.attribute.Attribute;
import org.bukkit.attribute.AttributeModifier;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.player.PlayerItemHeldEvent;
import org.bukkit.event.player.PlayerLoginEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.event.player.PlayerTeleportEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.spigotmc.event.player.PlayerSpawnLocationEvent;
public class MovementValidator extends FreedomService
{
@ -41,67 +33,36 @@ public class MovementValidator extends FreedomService
public void onPlayerTeleport(PlayerTeleportEvent event)
{
// Check absolute value to account for negatives
if (Math.abs(Objects.requireNonNull(event.getTo()).getX()) >= MAX_XYZ_COORD || Math.abs(event.getTo().getZ()) >= MAX_XYZ_COORD || Math.abs(event.getTo().getY()) >= MAX_XYZ_COORD)
if (isOutOfBounds(event.getTo()))
{
event.setCancelled(true); // illegal position, cancel it
}
}
private boolean isOutOfBounds(final Location position)
{
return Math.abs(position.getX()) >= MAX_XYZ_COORD || Math.abs(position.getY()) >= MAX_XYZ_COORD || Math.abs(position.getZ()) >= MAX_XYZ_COORD;
}
@EventHandler(priority = EventPriority.HIGH)
public void onPlayerMove(PlayerMoveEvent event)
{
final Player player = event.getPlayer();
Location from = event.getFrom();
Location to = event.getTo();
assert to != null;
if (to.getX() >= from.getX() + MAX_DISTANCE_TRAVELED || to.getY() >= from.getY() + MAX_DISTANCE_TRAVELED || to.getZ() >= from.getZ() + MAX_DISTANCE_TRAVELED)
double distance = from.distanceSquared(to);
if (distance >= MAX_DISTANCE_TRAVELED)
{
event.setCancelled(true);
player.kickPlayer(ChatColor.RED + "You were moving too quickly!");
player.kick(Component.text("You were moving too quickly!", NamedTextColor.RED));
}
// Check absolute value to account for negatives
if (Math.abs(event.getTo().getX()) >= MAX_XYZ_COORD || Math.abs(event.getTo().getZ()) >= MAX_XYZ_COORD || Math.abs(event.getTo().getY()) >= MAX_XYZ_COORD)
if (isOutOfBounds(event.getTo()))
{
event.setCancelled(true);
PaperLib.teleportAsync(player, player.getWorld().getSpawnLocation());
}
if (exploitItem(event.getPlayer().getInventory().getHelmet()))
{
event.getPlayer().getInventory().setHelmet(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your helmet slot.");
event.setCancelled(true);
}
if (exploitItem(event.getPlayer().getInventory().getBoots()))
{
event.getPlayer().getInventory().setBoots(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your boots slot.");
event.setCancelled(true);
}
if (exploitItem(event.getPlayer().getInventory().getLeggings()))
{
event.getPlayer().getInventory().setLeggings(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your leggings slot.");
event.setCancelled(true);
}
if (exploitItem(event.getPlayer().getInventory().getChestplate()))
{
event.getPlayer().getInventory().setChestplate(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your chestplate slot.");
event.setCancelled(true);
}
if (exploitItem(event.getPlayer().getInventory().getItemInMainHand()))
{
event.getPlayer().getInventory().setItemInMainHand(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your hand.");
event.setCancelled(true);
}
if (exploitItem(event.getPlayer().getInventory().getItemInOffHand()))
{
event.getPlayer().getInventory().setItemInOffHand(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your offhand.");
event.setCancelled(true);
}
}
@EventHandler(priority = EventPriority.HIGH)
@ -110,72 +71,28 @@ public class MovementValidator extends FreedomService
final Player player = event.getPlayer();
// Validate position
if (Math.abs(player.getLocation().getX()) >= MAX_XYZ_COORD || Math.abs(player.getLocation().getZ()) >= MAX_XYZ_COORD || Math.abs(player.getLocation().getY()) >= MAX_XYZ_COORD)
if (isOutOfBounds(player.getLocation()))
{
PaperLib.teleportAsync(player, player.getWorld().getSpawnLocation()); // Illegal position, teleport to spawn
}
}
@EventHandler
public void onPlayerHoldItem(PlayerItemHeldEvent event)
@EventHandler(priority = EventPriority.HIGH)
public void onPlayerSpawn(PlayerSpawnLocationEvent event)
{
if (exploitItem(event.getPlayer().getInventory().getItemInMainHand()))
final Location playerSpawn = event.getSpawnLocation();
final Location worldSpawn = event.getPlayer().getWorld().getSpawnLocation();
// If the player's spawn is equal to the world's spawn, there is no need to check.
// This will also prevent any possible feedback loops pertaining to setting an out of bounds world spawn to the same world spawn.
if (playerSpawn == worldSpawn)
{
event.getPlayer().getInventory().setItemInMainHand(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your hand.");
}
if (exploitItem(event.getPlayer().getInventory().getItemInOffHand()))
{
event.getPlayer().getInventory().setItemInOffHand(new ItemStack(Material.AIR));
event.getPlayer().sendMessage(ChatColor.RED + "An item with both negative infinity and positive infinity attributes was cleared from your offhand.");
}
return;
}
private Boolean exploitItem(ItemStack item)
if (isOutOfBounds(worldSpawn))
{
if (item == null)
{
return false;
event.setSpawnLocation(worldSpawn);
}
ItemMeta meta = item.getItemMeta();
if (meta != null)
{
Multimap<Attribute, AttributeModifier> attributes = meta.getAttributeModifiers();
if (attributes != null)
{
Map<Attribute, Collection<AttributeModifier>> attrMap = attributes.asMap();
// For every attribute...
for (Attribute attr : attributes.keySet())
{
// Default values
boolean posInf = false;
boolean negInf = false;
// For every AttributeModifier...
for (AttributeModifier modifier : attrMap.get(attr))
{
// Are they ∞ or -∞?
if (modifier.getAmount() == Double.POSITIVE_INFINITY)
{
posInf = true;
}
else if (modifier.getAmount() == Double.NEGATIVE_INFINITY)
{
negInf = true;
}
}
// Are both values set as true?
if (posInf && negInf)
{
return true;
}
}
}
}
return false;
}
}