/**
* Various corner cases that would cause this check to fail or require special treatment
*
* @param player
* @param data
* @param from
* @param to
* @return
*/
public boolean shouldBeApplied(
final Player player, final MovingData data, final Location from, final Location to) {
if (player.isDead() || player.isInsideVehicle() || data.insideVehicle) return false;
if (data.wasTeleported) {
// Remember this location
data.teleportedTo = from.clone();
data.wasTeleported = false;
data.jumpPhase = 0;
}
if (data.teleportedTo != null && data.teleportedTo.getWorld().equals(from.getWorld())) {
// As long as the from-Location doesn't change, the player didn't accept the teleport
if (data.teleportedTo.distanceSquared(from) < 0.01D) {
// Event after Teleport ignored
return false;
} else {
// The player finally accepted the teleport with the previous event
data.teleportedTo = null;
}
}
// If the target is a bed, don't check (going to bed is a kind of mini teleport...)
if (to.getWorld().getBlockTypeIdAt(to) == Material.BED_BLOCK.getId()) {
return false;
}
return true;
}
/**
* Update the cached values for players velocity to be prepared to give them additional movement
* freedom in their next move events
*
* @param v
* @param data
*/
public void updateVelocity(Vector v, MovingData data) {
// Compare the velocity vector to the existing movement freedom that we've from previous events
double tmp = (Math.abs(v.getX()) + Math.abs(v.getZ())) * 3D;
if (tmp > data.horizFreedom) data.horizFreedom = tmp;
if (v.getY() > data.maxYVelocity) {
data.maxYVelocity = v.getY();
}
}
/**
* Register a task with bukkit that will be run a short time from now, displaying how many
* violations happened in that timeframe
*
* @param p
* @param data
*/
private void setupSummaryTask(final Player p, final MovingData data) {
// Setup task to display summary later
if (data.summaryTask == -1) {
Runnable r =
new Runnable() {
@Override
public void run() {
if (data.highestLogLevel != null) {
String logString =
String.format(
summaryMessage,
p.getName(),
ticksBeforeSummary / 20,
data.violationsInARow[0],
data.violationsInARow[1],
data.violationsInARow[2]);
plugin.log(data.highestLogLevel, logString);
data.highestLogLevel = Level.ALL;
}
// deleting its own reference
data.summaryTask = -1;
data.violationsInARow[0] = 0;
data.violationsInARow[1] = 0;
data.violationsInARow[2] = 0;
}
};
// Give a summary in x ticks. 20 ticks ~ 1 second
data.summaryTask =
plugin.getServer().getScheduler().scheduleAsyncDelayedTask(plugin, r, ticksBeforeSummary);
}
}
/**
* Call this when a player got successfully teleported with the corresponding event to adjust
* stored data to the new situation
*
* @param event
*/
public void teleported(PlayerTeleportEvent event) {
MovingData data = MovingData.get(event.getPlayer());
// We can enforce a teleport, if that flag is explicitly set (but I'd rather have other plugins
// not arbitrarily cancel teleport events in the first place...
if (data.teleportInitializedByMe != null
&& event.isCancelled()
&& enforceTeleport
&& event.getTo().equals(data.teleportInitializedByMe)) {
event.setCancelled(false);
data.teleportInitializedByMe = null;
}
if (!event.isCancelled()) {
data.wasTeleported = true;
data.setBackPoint = event.getTo().clone();
// data.lastLocation = event.getTo().clone();
}
// reset anyway - if another plugin cancelled our teleport it's no use to try and be precise
data.jumpPhase = 0;
}
public PreciseLocation check(NoCheatPlayer player, MovingData data, CCMoving ccmoving) {
final PreciseLocation setBack = data.runflySetBackPoint;
final PreciseLocation from = data.from;
final PreciseLocation to = data.to;
if (!setBack.isSet()) {
setBack.set(from);
}
final double yDistance = to.y - from.y;
// Calculate some distances
final double xDistance = to.x - from.x;
final double zDistance = to.z - from.z;
final double horizontalDistance = Math.sqrt((xDistance * xDistance + zDistance * zDistance));
double resultHoriz = 0;
double resultVert = 0;
double result = 0;
PreciseLocation newToLocation = null;
// In case of creative gamemode, give at least 0.60 speed limit
// horizontal
double speedLimitHorizontal =
player.isCreative()
? Math.max(creativeSpeed, ccmoving.flyingSpeedLimitHorizontal)
: ccmoving.flyingSpeedLimitHorizontal;
speedLimitHorizontal *= player.getSpeedAmplifier();
resultHoriz = Math.max(0.0D, horizontalDistance - data.horizFreedom - speedLimitHorizontal);
boolean sprinting = player.isSprinting();
data.bunnyhopdelay--;
// Did he go too far?
if (resultHoriz > 0 && sprinting) {
// Try to treat it as a the "bunnyhop" problem
if (data.bunnyhopdelay <= 0 && resultHoriz < 0.4D) {
data.bunnyhopdelay = 3;
resultHoriz = 0;
}
}
resultHoriz *= 100;
// super simple, just check distance compared to max distance
resultVert =
Math.max(0.0D, yDistance - data.vertFreedom - ccmoving.flyingSpeedLimitVertical) * 100;
result = resultHoriz + resultVert;
if (result > 0) {
// Increment violation counter
data.runflyVL += result;
if (resultHoriz > 0) {
data.runflyRunningTotalVL += resultHoriz;
data.runflyRunningFailed++;
}
if (resultVert > 0) {
data.runflyFlyingTotalVL += resultVert;
data.runflyFlyingFailed++;
}
boolean cancel = executeActions(player, ccmoving.flyingActions.getActions(data.runflyVL));
// Was one of the actions a cancel? Then really do it
if (cancel) {
newToLocation = setBack;
}
}
// Slowly reduce the level with each event
data.runflyVL *= 0.97;
// Some other cleanup 'n' stuff
if (newToLocation == null) {
setBack.set(to);
}
return newToLocation;
}
/**
* The actual check. First find out if the event needs to be handled at all Second check if the
* player moved too far horizontally Third check if the player moved too high vertically Fourth
* treat any occured violations as configured
*
* @param event
*/
public Location check(Player player, Location from, Location to, MovingData data) {
updateVelocity(player.getVelocity(), data);
Location newToLocation = null;
final long startTime = System.nanoTime();
/** *********** DECIDE WHICH CHECKS NEED TO BE RUN ************ */
final boolean flyCheck =
!allowFlying && !plugin.hasPermission(player, PermissionData.PERMISSION_FLYING, checkOPs);
final boolean runCheck = true;
/** *************** REFINE EVENT DATA FOR CHECKS ************** */
if (flyCheck || runCheck) {
// In both cases it will be interesting to know the type of underground the player
// is in or goes to
final int fromType =
helper.isLocationOnGround(from.getWorld(), from.getX(), from.getY(), from.getZ(), false);
final int toType =
helper.isLocationOnGround(to.getWorld(), to.getX(), to.getY(), to.getZ(), false);
final boolean fromOnGround = fromType != MovingEventHelper.NONSOLID;
final boolean toOnGround = toType != MovingEventHelper.NONSOLID;
// Distribute data to checks in the form needed by the checks
/** ******************* EXECUTE THE CHECKS ******************* */
double result = 0.0D;
if (flyCheck) {
result += Math.max(0D, flyingCheck.check(player, from, fromOnGround, to, toOnGround, data));
}
if (runCheck) {
result +=
Math.max(
0D,
runningCheck.check(
from,
to,
!allowFakeSneak && player.isSneaking(),
!allowFastSwim && (fromType & toType & MovingEventHelper.LIQUID) > 0,
data));
}
/** ******* HANDLE/COMBINE THE RESULTS OF THE CHECKS ********** */
data.jumpPhase++;
if (result <= 0) {
if (fromOnGround) {
data.setBackPoint = from;
data.jumpPhase = 0;
} else if (toOnGround) {
data.jumpPhase = 0;
}
} else if (result > 0) {
// Increment violation counter
data.violationLevel += result;
if (data.setBackPoint == null) data.setBackPoint = from;
}
if (result > 0 && data.violationLevel > 1) {
setupSummaryTask(player, data);
int level = limitCheck(data.violationLevel - 1);
data.violationsInARow[level]++;
newToLocation =
action(player, from, to, actions[level], data.violationsInARow[level], data);
}
}
// Slowly reduce the level with each event
data.violationLevel *= 0.97;
data.horizFreedom *= 0.97;
statisticElapsedTimeNano += System.nanoTime() - startTime;
statisticTotalEvents++;
return newToLocation;
}
/**
* Perform actions that were specified in the config file
*
* @param event
* @param action
* @return
*/
private Location action(
Player player,
Location from,
Location to,
Action[] actions,
int violations,
MovingData data) {
Location newToLocation = null;
if (actions == null) return newToLocation;
boolean cancelled = false;
for (Action a : actions) {
if (a.firstAfter <= violations) {
if (a.firstAfter == violations || a.repeat) {
if (a instanceof LogAction) {
// prepare log message if necessary
String log =
String.format(
Locale.US,
logMessage,
player.getName(),
from.getWorld().getName(),
to.getWorld().getName(),
from.getX(),
from.getY(),
from.getZ(),
to.getX(),
to.getY(),
to.getZ(),
Math.abs(from.getX() - to.getX()),
to.getY() - from.getY(),
Math.abs(from.getZ() - to.getZ()));
plugin.log(((LogAction) a).level, log);
// Remember the highest log level we encountered to determine what level the summary log
// message should have
if (data.highestLogLevel == null) data.highestLogLevel = Level.ALL;
if (data.highestLogLevel.intValue() < ((LogAction) a).level.intValue())
data.highestLogLevel = ((LogAction) a).level;
} else if (!cancelled && a instanceof CancelAction) {
// Make a modified copy of the setBackPoint to prevent other plugins from accidentally
// modifying it
// and keep the current pitch and yaw (setbacks "feel" better that way). Plus try to
// adapt the Y-coord
// to place the player close to ground
double y = data.setBackPoint.getY();
// search for the first solid block up to 5 blocks below the setbackpoint and teleport
// the player there
int i = 0;
for (; i < 20; i++) {
if (playerIsOnGround(data.setBackPoint, -0.5 * i) != MovingData.NONSOLID) {
break;
}
}
y -= 0.5 * i;
data.setBackPoint.setY(y);
// Remember the location we send the player to, to identify teleports that were started
// by us
data.teleportInitializedByMe =
new Location(
data.setBackPoint.getWorld(),
data.setBackPoint.getX(),
y,
data.setBackPoint.getZ(),
to.getYaw(),
to.getPitch());
newToLocation = data.teleportInitializedByMe;
cancelled =
true; // just prevent us from treating more than one "cancel" action, which would
// make no sense
} else if (a instanceof CustomAction) plugin.handleCustomAction((CustomAction) a, player);
}
}
}
return newToLocation;
}