NoCheatPlus/NCPCore/src/main/java/fr/neatmonster/nocheatplus/checks/blockplace/FastPlace.java

111 lines
3.9 KiB
Java

/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package fr.neatmonster.nocheatplus.checks.blockplace;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import fr.neatmonster.nocheatplus.checks.Check;
import fr.neatmonster.nocheatplus.checks.CheckType;
import fr.neatmonster.nocheatplus.players.IPlayerData;
import fr.neatmonster.nocheatplus.utilities.TickTask;
/**
* A check used to verify if the player isn't placing blocks too quickly.
*/
public class FastPlace extends Check {
/**
* Instantiates a new fast place check.
*/
public FastPlace() {
super(CheckType.BLOCKPLACE_FASTPLACE);
}
/**
* Checks a player.
*
* @param player
* the player
* @param block
* the block
* @param cc
* @return true, if successful
*/
public boolean check(final Player player, final Block block, final int tick,
final BlockPlaceData data, final BlockPlaceConfig cc,
final IPlayerData pData) {
data.fastPlaceBuckets.add(System.currentTimeMillis(), 1f);
final boolean lag = pData.getCurrentWorldData().shouldAdjustToLag(type);
// Full period frequency.
final float fullScore = data.fastPlaceBuckets.score(1f);
// Short term arrivals.
if (tick < data.fastPlaceShortTermTick ) {
// TickTask got reset.
data.fastPlaceShortTermTick = tick;
data.fastPlaceShortTermCount = 1;
}
else if (tick - data.fastPlaceShortTermTick < cc.fastPlaceShortTermTicks){
// Account for server side lag.
if (!lag || TickTask.getLag(50L * (tick - data.fastPlaceShortTermTick), true) < 1.2f){
// Within range, add.
data.fastPlaceShortTermCount ++;
}
else{
// Too much lag, reset.
data.fastPlaceShortTermTick = tick;
data.fastPlaceShortTermCount = 1;
}
}
else{
data.fastPlaceShortTermTick = tick;
data.fastPlaceShortTermCount = 1;
}
// Find if one of both or both are violations:
final float fullViolation;
if (fullScore > cc.fastPlaceLimit) {
// Account for server side lag.
if (lag) {
fullViolation = fullScore / TickTask.getLag(data.fastPlaceBuckets.bucketDuration() * data.fastPlaceBuckets.numberOfBuckets(), true) - cc.fastPlaceLimit;
}
else{
fullViolation = fullScore - cc.fastPlaceLimit;
}
}
else{
fullViolation = 0;
}
final float shortTermViolation = data.fastPlaceShortTermCount - cc.fastPlaceShortTermLimit;
final float violation = Math.max(fullViolation, shortTermViolation);
boolean cancel = false;
if (violation > 0f) {
final double change = (double) violation;
data.fastPlaceVL += change;
cancel = executeActions(player, data.fastPlaceVL, change, cc.fastPlaceActions).willCancel();
}
else if (data.fastPlaceVL > 0d && fullScore < cc.fastPlaceLimit * .75) {
data.fastPlaceVL *= 0.95;
}
return cancel;
}
}