mirror of https://github.com/Minestom/Minestom.git
86 lines
3.7 KiB
Java
86 lines
3.7 KiB
Java
package net.minestom.server.listener;
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import net.minestom.server.coordinate.Pos;
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import net.minestom.server.entity.Player;
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import net.minestom.server.event.GlobalHandles;
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import net.minestom.server.event.player.PlayerMoveEvent;
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import net.minestom.server.instance.Instance;
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import net.minestom.server.network.packet.client.play.*;
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import net.minestom.server.network.packet.server.play.PlayerPositionAndLookPacket;
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import net.minestom.server.network.player.PlayerConnection;
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import net.minestom.server.utils.chunk.ChunkUtils;
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import org.jetbrains.annotations.NotNull;
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public class PlayerPositionListener {
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public static void playerPacketListener(ClientPlayerPacket packet, Player player) {
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player.refreshOnGround(packet.onGround());
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}
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public static void playerLookListener(ClientPlayerRotationPacket packet, Player player) {
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processMovement(player, player.getPosition().withView(packet.yaw(), packet.pitch()), packet.onGround());
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}
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public static void playerPositionListener(ClientPlayerPositionPacket packet, Player player) {
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processMovement(player, player.getPosition().withCoord(packet.position()), packet.onGround());
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}
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public static void playerPositionAndLookListener(ClientPlayerPositionAndRotationPacket packet, Player player) {
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processMovement(player, packet.position(), packet.onGround());
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}
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public static void teleportConfirmListener(ClientTeleportConfirmPacket packet, Player player) {
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player.refreshReceivedTeleportId(packet.teleportId());
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}
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private static void processMovement(@NotNull Player player, @NotNull Pos packetPosition, boolean onGround) {
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final var currentPosition = player.getPosition();
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if (currentPosition.equals(packetPosition)) {
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// For some reason, the position is the same
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return;
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}
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final Instance instance = player.getInstance();
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// Prevent moving before the player spawned, probably a modified client (or high latency?)
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if (instance == null) {
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return;
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}
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// Prevent the player from moving during a teleport
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if (player.getLastSentTeleportId() != player.getLastReceivedTeleportId()) {
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return;
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}
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// Try to move in an unloaded chunk, prevent it
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if (!currentPosition.sameChunk(packetPosition) && !ChunkUtils.isLoaded(instance, packetPosition)) {
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player.teleport(currentPosition);
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return;
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}
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PlayerMoveEvent playerMoveEvent = new PlayerMoveEvent(player, packetPosition);
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GlobalHandles.PLAYER_MOVE.call(playerMoveEvent);
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if (!currentPosition.equals(player.getPosition())) {
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// Player has been teleported in the event
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return;
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}
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if (playerMoveEvent.isCancelled()) {
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// Teleport to previous position
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PlayerConnection connection = player.getPlayerConnection();
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connection.sendPacket(new PlayerPositionAndLookPacket(currentPosition, (byte) 0x00, player.getNextTeleportId(), false));
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return;
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}
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final Pos eventPosition = playerMoveEvent.getNewPosition();
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if (packetPosition.equals(eventPosition)) {
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// Event didn't change the position
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player.refreshPosition(eventPosition);
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player.refreshOnGround(onGround);
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} else {
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// Position modified by the event
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if (packetPosition.samePoint(eventPosition)) {
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player.refreshPosition(eventPosition, true);
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player.refreshOnGround(onGround);
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player.setView(eventPosition.yaw(), eventPosition.pitch());
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} else {
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player.teleport(eventPosition);
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}
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}
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}
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}
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