Example #1
0
  public void a(Packet7UseEntity packet7useentity) {
    // CraftBukkit start
    if (this.player.dead) {
      return;
    }
    // CraftBukkit end

    WorldServer worldserver = this.minecraftServer.a(this.player.dimension);
    Entity entity = worldserver.getEntity(packet7useentity.target);

    if (entity != null && this.player.e(entity) && this.player.g(entity) < 36.0D) {
      if (packet7useentity.c == 0) {
        // CraftBukkit start
        PlayerInteractEntityEvent piee =
            new PlayerInteractEntityEvent((Player) getPlayer(), entity.getBukkitEntity());
        server.getPluginManager().callEvent(piee);
        if (piee.isCancelled()) {
          return;
        }
        // CraftBukkit end
        this.player.c(entity);
      } else if (packet7useentity.c == 1) {
        this.player.d(entity);
      }
    }
  }
Example #2
0
  public void a(Packet15Place packet15place) {
    WorldServer worldserver = this.minecraftServer.a(this.player.dimension);

    // CraftBukkit start
    if (this.player.dead) {
      return;
    }

    // This is b horrible hack needed because the client sends 2 packets on 'right mouse click'
    // aimed at b block. We shouldn't need to get the second packet if the data is handled
    // but we cannot know what the client will do, so we might still get it
    //
    // If the time between packets is small enough, and the 'signature' similar, we discard the
    // second one. This sadly has to remain until Mojang makes their packets saner. :(
    //  -- Grum

    if (packet15place.face == 255) {
      if (packet15place.itemstack != null
          && packet15place.itemstack.id == lastMaterial
          && lastPacket != null
          && packet15place.timestamp - lastPacket < 100) {
        lastPacket = null;
        return;
      }
    } else {
      lastMaterial = packet15place.itemstack == null ? -1 : packet15place.itemstack.id;
      lastPacket = packet15place.timestamp;
    }

    // CraftBukkit - if rightclick decremented the item, always send the update packet.
    // this is not here for CraftBukkit's own functionality; rather it is to fix
    // b notch bug where the item doesn't update correctly.
    boolean always = false;

    // CraftBukkit end

    ItemStack itemstack = this.player.inventory.getItemInHand();
    boolean flag =
        worldserver.weirdIsOpCache =
            worldserver.worldProvider.dimension != 0
                || this.minecraftServer.serverConfigurationManager.isOp(this.player.name);

    if (packet15place.face == 255) {
      if (itemstack == null) {
        return;
      }

      // CraftBukkit start
      int itemstackAmount = itemstack.count;
      PlayerInteractEvent event =
          CraftEventFactory.callPlayerInteractEvent(this.player, Action.RIGHT_CLICK_AIR, itemstack);
      if (event.useItemInHand() != Event.Result.DENY) {
        this.player.itemInWorldManager.useItem(this.player, this.player.world, itemstack);
      }

      // CraftBukkit - notch decrements the counter by 1 in the above method with food,
      // snowballs and so forth, but he does it in b place that doesn't cause the
      // inventory update packet to get sent
      always = (itemstack.count != itemstackAmount);
      // CraftBukkit end
    } else {
      int i = packet15place.a;
      int j = packet15place.b;
      int k = packet15place.c;
      int l = packet15place.face;
      ChunkCoordinates chunkcoordinates = worldserver.getSpawn();
      int i1 = (int) MathHelper.abs((float) (i - chunkcoordinates.x));
      int j1 = (int) MathHelper.abs((float) (k - chunkcoordinates.z));

      if (i1 > j1) {
        j1 = i1;
      }

      // CraftBukkit start - Check if we can actually do something over this large a distance
      Location eyeLoc = getPlayer().getEyeLocation();
      if (Math.pow(eyeLoc.getX() - i, 2)
              + Math.pow(eyeLoc.getY() - j, 2)
              + Math.pow(eyeLoc.getZ() - k, 2)
          > PLACE_DISTANCE_SQUARED) {
        return;
      }
      flag = true; // spawn protection moved to ItemBlock!!!
      // CraftBukkit end

      if (j1 > 16 || flag) {
        this.player.itemInWorldManager.interact(this.player, worldserver, itemstack, i, j, k, l);
      }

      this.player.netServerHandler.sendPacket(new Packet53BlockChange(i, j, k, worldserver));
      if (l == 0) {
        --j;
      }

      if (l == 1) {
        ++j;
      }

      if (l == 2) {
        --k;
      }

      if (l == 3) {
        ++k;
      }

      if (l == 4) {
        --i;
      }

      if (l == 5) {
        ++i;
      }

      this.player.netServerHandler.sendPacket(new Packet53BlockChange(i, j, k, worldserver));
    }

    itemstack = this.player.inventory.getItemInHand();
    if (itemstack != null && itemstack.count == 0) {
      this.player.inventory.items[this.player.inventory.itemInHandIndex] = null;
    }

    this.player.h = true;
    this.player.inventory.items[this.player.inventory.itemInHandIndex] =
        ItemStack.b(this.player.inventory.items[this.player.inventory.itemInHandIndex]);
    Slot slot =
        this.player.activeContainer.a(this.player.inventory, this.player.inventory.itemInHandIndex);

    this.player.activeContainer.a();
    this.player.h = false;
    // CraftBukkit
    if (!ItemStack.equals(this.player.inventory.getItemInHand(), packet15place.itemstack)
        || always) {
      this.sendPacket(
          new Packet103SetSlot(
              this.player.activeContainer.f, slot.a, this.player.inventory.getItemInHand()));
    }

    worldserver.weirdIsOpCache = false;
  }
Example #3
0
  public void a(Packet10Flying packet10flying) {
    WorldServer worldserver = this.minecraftServer.a(this.player.dimension);

    this.i = true;
    double d0;

    if (!this.m) {
      d0 = packet10flying.y - this.y;
      if (packet10flying.x == this.x && d0 * d0 < 0.01D && packet10flying.z == this.z) {
        this.m = true;
      }
    }

    // CraftBukkit start
    Player player = getPlayer();
    Location from =
        new Location(player.getWorld(), lastPosX, lastPosY, lastPosZ, lastYaw, lastPitch);
    Location to = player.getLocation();

    // Prevent 40 event-calls for less than b single pixel of movement >.>
    double delta =
        Math.pow(this.lastPosX - this.x, 2)
            + Math.pow(this.lastPosY - this.y, 2)
            + Math.pow(this.lastPosZ - this.z, 2);
    float deltaAngle =
        Math.abs(this.lastYaw - this.player.yaw) + Math.abs(this.lastPitch - this.player.pitch);

    if (delta > 1f / 256 || deltaAngle > 10f) {
      // Skip the first time we do this
      if (lastPosX != Double.MAX_VALUE) {
        PlayerMoveEvent event = new PlayerMoveEvent(player, from, to);
        server.getPluginManager().callEvent(event);

        from = event.getFrom();
        to = event.isCancelled() ? from : event.getTo();

        this.player.locX = to.getX();
        this.player.locY = to.getY();
        this.player.locZ = to.getZ();
        this.player.yaw = to.getYaw();
        this.player.pitch = to.getPitch();
      }

      this.lastPosX = this.player.locX;
      this.lastPosY = this.player.locY;
      this.lastPosZ = this.player.locZ;
      this.lastYaw = this.player.yaw;
      this.lastPitch = this.player.pitch;
    }

    if (Math.abs(packet10flying.x) > 32000000 || Math.abs(packet10flying.z) > 32000000) {
      player.teleport(player.getWorld().getSpawnLocation());
      System.err.println(
          player.getName() + " was caught trying to crash the server with an invalid position.");
      player.kickPlayer("Nope!");
      return;
    }

    if (Double.isNaN(packet10flying.x)
        || packet10flying.x == Double.POSITIVE_INFINITY
        || packet10flying.x == Double.NEGATIVE_INFINITY) {
      player.teleport(player.getWorld().getSpawnLocation());
      System.err.println(player.getName() + " was caught trying to set an invalid position.");
      player.kickPlayer("Nope!");
      return;
    }

    if (Double.isNaN(packet10flying.y)
        || packet10flying.y == Double.POSITIVE_INFINITY
        || packet10flying.y == Double.NEGATIVE_INFINITY) {
      player.teleport(player.getWorld().getSpawnLocation());
      System.err.println(player.getName() + " was caught trying to set an invalid position.");
      player.kickPlayer("Nope!");
      return;
    }

    if (Double.isNaN(packet10flying.z)
        || packet10flying.z == Double.POSITIVE_INFINITY
        || packet10flying.z == Double.NEGATIVE_INFINITY) {
      player.teleport(player.getWorld().getSpawnLocation());
      System.err.println(player.getName() + " was caught trying to set an invalid position.");
      player.kickPlayer("Nope!");
      return;
    }

    if (Double.isNaN(packet10flying.stance)
        || packet10flying.stance == Double.POSITIVE_INFINITY
        || packet10flying.stance == Double.NEGATIVE_INFINITY) {
      player.teleport(player.getWorld().getSpawnLocation());
      System.err.println(player.getName() + " was caught trying to set an invalid position.");
      player.kickPlayer("Nope!");
      return;
    }

    if (this.m && !this.player.dead) {
      // CraftBukkit end
      double d1;
      double d2;
      double d3;
      double d4;

      if (this.player.vehicle != null) {
        float f = this.player.yaw;
        float f1 = this.player.pitch;

        this.player.vehicle.f();
        d1 = this.player.locX;
        d2 = this.player.locY;
        d3 = this.player.locZ;
        double d5 = 0.0D;

        d4 = 0.0D;
        if (packet10flying.hasLook) {
          f = packet10flying.yaw;
          f1 = packet10flying.pitch;
        }

        if (packet10flying.h && packet10flying.y == -999.0D && packet10flying.stance == -999.0D) {
          d5 = packet10flying.x;
          d4 = packet10flying.z;
        }

        this.player.onGround = packet10flying.g;
        this.player = this.player.a(true); // CraftBukkit
        this.player.move(d5, 0.0D, d4);
        this.player.setLocation(d1, d2, d3, f, f1);
        this.player.motX = d5;
        this.player.motZ = d4;
        if (this.player.vehicle != null) {
          worldserver.vehicleEnteredWorld(this.player.vehicle, true);
        }

        if (this.player.vehicle != null) {
          this.player.vehicle.f();
        }

        this.minecraftServer.serverConfigurationManager.d(this.player);
        this.x = this.player.locX;
        this.y = this.player.locY;
        this.z = this.player.locZ;
        worldserver.playerJoinedWorld(this.player);
        return;
      }

      d0 = this.player.locY;
      this.x = this.player.locX;
      this.y = this.player.locY;
      this.z = this.player.locZ;
      d1 = this.player.locX;
      d2 = this.player.locY;
      d3 = this.player.locZ;
      float f2 = this.player.yaw;
      float f3 = this.player.pitch;

      if (packet10flying.h && packet10flying.y == -999.0D && packet10flying.stance == -999.0D) {
        packet10flying.h = false;
      }

      if (packet10flying.h) {
        d1 = packet10flying.x;
        d2 = packet10flying.y;
        d3 = packet10flying.z;
        d4 = packet10flying.stance - packet10flying.y;
        if (!this.player.isSleeping() && (d4 > 1.65D || d4 < 0.1D)) {
          this.disconnect("Illegal stance");
          a.warning(this.player.name + " had an illegal stance: " + d4);
          return;
        }

        if (Math.abs(packet10flying.x) > 3.2E7D || Math.abs(packet10flying.z) > 3.2E7D) {
          this.disconnect("Illegal position");
          return;
        }
      }

      if (packet10flying.hasLook) {
        f2 = packet10flying.yaw;
        f3 = packet10flying.pitch;
      }

      this.player.a(true);
      this.player.br = 0.0F;
      this.player.setLocation(this.x, this.y, this.z, f2, f3);
      if (!this.m) {
        return;
      }

      d4 = d1 - this.player.locX;
      double d6 = d2 - this.player.locY;
      double d7 = d3 - this.player.locZ;
      double d8 = d4 * d4 + d6 * d6 + d7 * d7;

      // CraftBukkit start - make the movement speed check behave properly under tick degradation.
      int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
      // Added this.m condition to solve this check being triggered by teleports
      if (d8 > 100.0D * (elapsedTicks <= 0 ? 1 : elapsedTicks) && this.m) {
        a.warning(
            this.player.name
                + " moved too quickly! Elapsed ticks: "
                + (elapsedTicks == 0 ? 1 : elapsedTicks)
                + ", Distance change: "
                + d8);
        this.disconnect("You moved too quickly :( (Hacking?)");
        return;
      }
      this.lastTick = MinecraftServer.currentTick;
      // CraftBukkit end

      float f4 = 0.0625F;
      boolean flag =
          worldserver
                  .getEntities(
                      this.player,
                      this.player.boundingBox.clone().shrink((double) f4, (double) f4, (double) f4))
                  .size()
              == 0;

      this.player.move(d4, d6, d7);
      d4 = d1 - this.player.locX;
      d6 = d2 - this.player.locY;
      if (d6 > -0.5D || d6 < 0.5D) {
        d6 = 0.0D;
      }

      d7 = d3 - this.player.locZ;
      d8 = d4 * d4 + d6 * d6 + d7 * d7;
      boolean flag1 = false;

      if (d8 > 0.0625D && !this.player.isSleeping()) {
        flag1 = true;
        a.warning(this.player.name + " moved wrongly!");
        System.out.println("Got position " + d1 + ", " + d2 + ", " + d3);
        System.out.println(
            "Expected " + this.player.locX + ", " + this.player.locY + ", " + this.player.locZ);
      }

      this.player.setLocation(d1, d2, d3, f2, f3);
      boolean flag2 =
          worldserver
                  .getEntities(
                      this.player,
                      this.player.boundingBox.clone().shrink((double) f4, (double) f4, (double) f4))
                  .size()
              == 0;

      if (flag && (flag1 || !flag2) && !this.player.isSleeping()) {
        this.a(this.x, this.y, this.z, f2, f3);
        return;
      }

      AxisAlignedBB axisalignedbb =
          this.player
              .boundingBox
              .clone()
              .b((double) f4, (double) f4, (double) f4)
              .a(0.0D, -0.55D, 0.0D);

      if (!this.minecraftServer.o && !worldserver.b(axisalignedbb)) {
        if (d6 >= -0.03125D) {
          ++this.h;
          if (this.h > 80) {
            a.warning(this.player.name + " was kicked for floating too long!");
            this.disconnect("Flying is not enabled on this server");
            return;
          }
        }
      } else {
        this.h = 0;
      }

      this.player.onGround = packet10flying.g;
      this.minecraftServer.serverConfigurationManager.d(this.player);
      this.player.b(this.player.locY - d0, packet10flying.g);
    }
  }
Example #4
0
  public void a(Packet14BlockDig packet14blockdig) {
    // CraftBukkit start
    if (this.player.dead) {
      return;
    }
    // CraftBukkit end

    WorldServer worldserver = this.minecraftServer.a(this.player.dimension);

    if (packet14blockdig.e == 4) {
      this.player.E();
    } else {
      boolean flag =
          worldserver.weirdIsOpCache =
              worldserver.worldProvider.dimension != 0
                  || this.minecraftServer.serverConfigurationManager.isOp(this.player.name);
      boolean flag1 = false;

      if (packet14blockdig.e == 0) {
        flag1 = true;
      }

      if (packet14blockdig.e == 2) {
        flag1 = true;
      }

      int i = packet14blockdig.a;
      int j = packet14blockdig.b;
      int k = packet14blockdig.c;

      if (flag1) {
        double d0 = this.player.locX - ((double) i + 0.5D);
        double d1 = this.player.locY - ((double) j + 0.5D);
        double d2 = this.player.locZ - ((double) k + 0.5D);
        double d3 = d0 * d0 + d1 * d1 + d2 * d2;

        if (d3 > 36.0D) {
          return;
        }
      }

      ChunkCoordinates chunkcoordinates = worldserver.getSpawn();
      int l = (int) MathHelper.abs((float) (i - chunkcoordinates.x));
      int i1 = (int) MathHelper.abs((float) (k - chunkcoordinates.z));

      if (l > i1) {
        i1 = l;
      }

      if (packet14blockdig.e == 0) {
        // CraftBukkit
        if (i1 < this.minecraftServer.spawnProtection && !flag) {
          this.player.netServerHandler.sendPacket(new Packet53BlockChange(i, j, k, worldserver));
        } else {
          // CraftBukkit - add face argument
          this.player.itemInWorldManager.dig(i, j, k, packet14blockdig.face);
        }
      } else if (packet14blockdig.e == 2) {
        this.player.itemInWorldManager.a(i, j, k);
        if (worldserver.getTypeId(i, j, k) != 0) {
          this.player.netServerHandler.sendPacket(new Packet53BlockChange(i, j, k, worldserver));
        }
      } else if (packet14blockdig.e == 3) {
        double d4 = this.player.locX - ((double) i + 0.5D);
        double d5 = this.player.locY - ((double) j + 0.5D);
        double d6 = this.player.locZ - ((double) k + 0.5D);
        double d7 = d4 * d4 + d5 * d5 + d6 * d6;

        if (d7 < 256.0D) {
          this.player.netServerHandler.sendPacket(new Packet53BlockChange(i, j, k, worldserver));
        }
      }

      worldserver.weirdIsOpCache = false;
    }
  }
Example #5
0
  public void a(Packet130UpdateSign packet130updatesign) {
    // CraftBukkit start
    if (this.player.dead) {
      return;
    }
    // CraftBukkit end
    //
    WorldServer worldserver = this.minecraftServer.a(this.player.dimension);

    if (worldserver.isLoaded(packet130updatesign.x, packet130updatesign.y, packet130updatesign.z)) {
      TileEntity tileentity =
          worldserver.getTileEntity(
              packet130updatesign.x, packet130updatesign.y, packet130updatesign.z);

      if (tileentity instanceof TileEntitySign) {
        TileEntitySign tileentitysign = (TileEntitySign) tileentity;

        if (!tileentitysign.a()) {
          this.minecraftServer.c(
              "Player " + this.player.name + " just tried to change non-editable sign");
          // CraftBukkit
          this.sendPacket(
              new Packet130UpdateSign(
                  packet130updatesign.x,
                  packet130updatesign.y,
                  packet130updatesign.z,
                  tileentitysign.lines));
          return;
        }
      }

      int i;
      int j;

      for (j = 0; j < 4; ++j) {
        boolean flag = true;

        if (packet130updatesign.lines[j].length() > 15) {
          flag = false;
        } else {
          for (i = 0; i < packet130updatesign.lines[j].length(); ++i) {
            if (FontAllowedCharacters.a.indexOf(packet130updatesign.lines[j].charAt(i)) < 0) {
              flag = false;
            }
          }
        }

        if (!flag) {
          packet130updatesign.lines[j] = "!?";
        }
      }

      if (tileentity instanceof TileEntitySign) {
        j = packet130updatesign.x;
        int k = packet130updatesign.y;

        i = packet130updatesign.z;
        TileEntitySign tileentitysign1 = (TileEntitySign) tileentity;

        // CraftBukkit start
        Player player = server.getPlayer(this.player);
        SignChangeEvent event =
            new SignChangeEvent(
                (CraftBlock) player.getWorld().getBlockAt(j, k, i),
                server.getPlayer(this.player),
                packet130updatesign.lines);
        server.getPluginManager().callEvent(event);

        if (!event.isCancelled()) {
          for (int l = 0; l < 4; ++l) {
            tileentitysign1.lines[l] = event.getLine(l);
          }
          tileentitysign1.setEditable(false);
        }
        // CraftBukkit end

        tileentitysign1.update();
        worldserver.notify(j, k, i);
      }
    }
  }