(by ammaraskar) Fixes an ender pearl clipping exploit with blocks that occupy less than 1 block in width or length
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@ -7,6 +7,7 @@ import org.bukkit.event.EventHandler;
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import org.bukkit.event.EventPriority;
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import org.bukkit.event.Listener;
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import org.bukkit.Location;
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import org.bukkit.Material;
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import com.massivecraft.factions.Conf;
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@ -33,10 +34,35 @@ public class FactionsExploitListener implements Listener
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if (event.getCause() != PlayerTeleportEvent.TeleportCause.ENDER_PEARL) return;
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// this exploit works when the target location is within 0.31 blocks or so of a door or glass block or similar...
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// simple fix: ender pearl target locations are standardized to be in the center (X/Z) of the target block, not at the edges
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Location target = event.getTo();
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Location from = event.getFrom();
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// blocks who occupy less than 1 block width or length wise need to be handled differently
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Material mat = event.getTo().getBlock().getType();
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if (
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((mat == Material.THIN_GLASS || mat == Material.IRON_FENCE) && clippingThrough(target, from, 0.65))
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|| ((mat == Material.FENCE || mat == Material.NETHER_FENCE) && clippingThrough(target, from, 0.45))
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)
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{
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event.setTo(from);
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return;
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}
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// simple fix otherwise: ender pearl target locations are standardized to be in the center (X/Z) of the target block, not at the edges
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target.setX(target.getBlockX() + 0.5);
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target.setZ(target.getBlockZ() + 0.5);
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event.setTo(target);
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}
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public static boolean clippingThrough(Location target, Location from, double thickness)
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{
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return
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(
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(from.getX() > target.getX() && (from.getX() - target.getX() < thickness))
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|| (target.getX() > from.getX() && (target.getX() - from.getX() < thickness))
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|| (from.getZ() > target.getZ() && (from.getZ() - target.getZ() < thickness))
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|| (target.getZ() > from.getZ() && (target.getZ() - from.getZ() < thickness))
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);
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}
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}
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