123 lines
4.4 KiB
Java
123 lines
4.4 KiB
Java
/*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package fr.neatmonster.nocheatplus.checks.net;
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import fr.neatmonster.nocheatplus.checks.net.model.DataPacketFlying;
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/**
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* A simple loop through checker for the flying queue feature.
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* @author asofold
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*
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*/
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public abstract class FlyingQueueLookBlockChecker {
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/**
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* Override to prevent setting elements that can't be used or for which
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* check returned false to null.
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*/
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protected boolean invalidateFailed = true;
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/**
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* Run the check with the given oldPitch and oldYaw, unless invalidated.
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* invalidateFailed applies.
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*/
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protected boolean checkOldLook = true;
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protected abstract boolean check(final double x, final double y, final double z,
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final float yaw, final float pitch,
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final int blockX, final int blockY, final int blockZ);
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public FlyingQueueLookBlockChecker setInvalidateFailed(boolean invalidatedFailed) {
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this.invalidateFailed = invalidatedFailed;
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return this;
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}
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public FlyingQueueLookBlockChecker setCheckOldLook(boolean checkOldLook) {
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this.checkOldLook = checkOldLook;
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return this;
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}
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/**
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* Run check with the given start position (e.g. eye coordinates), but use
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* yaw and pitch from the flying queue. Non matching entries are nulled,
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* unless setUnusableToNull is set to false.
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*
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* @param x
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* @param y
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* @param z
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* @param oldYaw
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* @param oldPitch
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* @param blockX
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* @param blockY
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* @param blockZ
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* @param flyingHandle
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* @return True, if check returned true (the first time is returned). False
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* if the queue is empty or check has not returned true for any
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* contained element. Special return values have to be set
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* elsewhere. An empty queue also yields false as return value.
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*/
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public boolean checkFlyingQueue(final double x, final double y, final double z,
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final float oldYaw, final float oldPitch,
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final int blockX, final int blockY, final int blockZ, final FlyingQueueHandle flyingHandle) {
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if (checkOldLook && flyingHandle.isCurrentLocationValid()) {
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if (check(x, y, z, oldYaw, oldPitch, blockX, blockY, blockZ)) {
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return true;
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}
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else {
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// Invalidate.
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flyingHandle.setCurrentLocationValid(false);
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}
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}
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final DataPacketFlying[] queue = flyingHandle.getHandle();
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if (queue.length == 0) {
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return false;
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}
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for (int i = 0; i < queue.length; i++) {
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final DataPacketFlying packetData = queue[i];
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if (packetData == null) {
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continue;
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}
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if (!packetData.hasLook) {
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if (invalidateFailed) {
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queue[i] = null;
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}
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continue;
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}
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final float yaw = packetData.getYaw();
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final float pitch = packetData.getPitch();
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// Simple heuristic: reduce impact of checking by skipping redundant entries.
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// TODO: Other heuristic / what's typical?
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if (yaw == oldYaw && pitch == oldPitch) {
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if (invalidateFailed) {
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queue[i] = null;
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}
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continue;
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}
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// TODO: Consider support some other type of metric (possibly checking positions too?);
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if (check(x, y, z, yaw, pitch, blockX, blockY, blockZ)) {
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// TODO: Consider to remember index and entry as well?
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return true;
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}
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else {
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if (invalidateFailed) {
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queue[i] = null;
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}
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}
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}
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return false;
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}
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}
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