Upstream/NoCheatPlus
1
0
Fork 0
mirror of https://github.com/NoCheatPlus/NoCheatPlus.git synced 2024-12-27 02:48:04 +01:00
Code Issues Projects Releases Wiki Activity

Reduce false positives with jumping onto/over edges of blocks.

Browse Source 
This is another case of "lost-ground", also contains one fix for nofall.
This commit is contained in:
asofold 2013-02-28 17:16:40 +01:00
parent da4b142aa9
commit 50ebbb01fb
2 changed files with 99 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
NCPPlugin/src/main/java/fr/neatmonster/nocheatplus/checks/moving/MovingListener.java
View File

@ -1034,7 +1034,9 @@ public class MovingListener extends CheckListener implements TickListener, IRemo
// NOTE: No isIllegal check here.
final PlayerLocation pLoc = moveInfo.from;
moveInfo.from.collectBlockFlags(cc.noFallyOnGround);
if (!pLoc.isOnGround() && !pLoc.isResetCond() && !pLoc.isAboveLadder() && !pLoc.isAboveStairs()){
// Be sure not to lose that block.
data.noFallFallDistance += 1.0;
if (!pLoc.isOnGround(1.0) && !pLoc.isResetCond() && !pLoc.isAboveLadder() && !pLoc.isAboveStairs()){
// Likely a new style no-fall bypass (damage in mid-air).
data.noFallVL += 1.0;
if (noFall.executeActions(player, data.noFallVL, 1.0, cc.noFallActions, true) && data.hasSetBack()){
@ -1043,6 +1045,12 @@ public class MovingListener extends CheckListener implements TickListener, IRemo
allowReset = false;
}
}
else{
// Legitimate damage: clear accounting data.
data.vDistAcc.clear();
// TODO: Also reset other properties.
// TODO: Also reset in other cases (moved too quickly)?
}
moveInfo.cleanup();
parkedInfo.add(moveInfo);
}

83
NCPPlugin/src/main/java/fr/neatmonster/nocheatplus/checks/moving/SurvivalFly.java
View File

@ -111,6 +111,8 @@ public class SurvivalFly extends Check {
}
else resetFrom = false;
// TODO: Account for lift-off medium / if in air [i.e. account for medium + friction]?
// (Might set some margin for buffering if cutting down hAllowedDistance.)
double hAllowedDistance = getAllowedhDist(player, from, to, sprinting, hDistance, data, cc, false);
// Account for flowing liquids (only if needed).
@ -347,7 +349,7 @@ public class SurvivalFly extends Check {
if (!resetFrom && !resetTo){
// "On-air" checks (vertical)
vDistanceAboveLimit = Math.max(vDistanceAboveLimit, verticalAccounting(now, from, to, yDistance, data, cc));
vDistanceAboveLimit = Math.max(vDistanceAboveLimit, verticalAccounting(now, from, to, hDistance, yDistance, data, cc));
}
final double result = (Math.max(hDistanceAboveLimit, 0D) + Math.max(vDistanceAboveLimit, 0D)) * 100D;
@ -495,22 +497,26 @@ public class SurvivalFly extends Check {
// TODO: re-organize for faster exclusions (hDistance, yDistance).
// Check for moving off stairs.
// TODO: more strict conditions ?
if (from.isAboveStairs()) {
// TODO: This needs some safety guards.
// TODO: At least test putting this after yDistance > 0.5 check.
return applyWorkaround(player, from, true, data);
}
// Check for "lost touch", for when moving events are missing somehow.
// Half block step up.
if (yDistance >= 0 && yDistance <= 0.5 && hDistance < 0.5 && to.isOnGround()){
// TODO: Also confine concerning hDist !
if (data.sfLastYDist < 0 || from.isOnGround(0.5 - Math.abs(yDistance))){
return applyWorkaround(player, from, true, data);
}
if (yDistance > 0.5 + 0.2 * data.jumpAmplifier){
// All following checks are ruled out by this.
// (This should rarely ever happen, except for velocity and pistons.)
return false;
}
final double setBackYDistance = to.getY() - data.getSetBackY();
if (yDistance <= 0){
if (data.sfJumpPhase <= 7){
// Check for sprinting down blocks etc.
if (yDistance <= 0.0 && Math.abs(yDistance) <= 0.5 && data.sfLastYDist <= yDistance && data.sfJumpPhase <= 7 && setBackYDistance < 0 && !to.isOnGround()){
if (yDistance >= -0.5 && data.sfLastYDist <= yDistance && setBackYDistance < 0 && !to.isOnGround()){
// TODO: setbackydist: <= - 1.0 or similar
// TODO: <= 7 might work with speed II, not sure with above.
// TODO: account for speed/sprint
@ -530,12 +536,34 @@ public class SurvivalFly extends Check {
return applyWorkaround(player, from, true, data);
}
}
}
// Lost ground while falling onto/over edges of blocks.
if (yDistance < 0 && yDistance >= -0.5 && hDistance <= 0.5 && data.sfLastYDist < 0 && yDistance > data.sfLastYDist){
// TODO: yDistance >= -0.15 might be possible.
// TODO: yDistance <= 0 might be better.
// Also clear accounting data.
if (to.isOnGround(0.5) || from.isOnGround(0.5)){
return applyWorkaround(player, from, true, data);
}
}
}
if (yDistance >= 0){
// Half block step up.
if (yDistance <= 0.5 && hDistance < 0.5 && to.isOnGround()){
// TODO: Also confine concerning hDist !
if (data.sfLastYDist < 0 || from.isOnGround(0.5 - Math.abs(yDistance))){
return applyWorkaround(player, from, true, data);
}
}
// Interpolation check.
// TODO: Check if still needed !
// TODO: Check if the set-back distance still has relevance.
// TODO: Interpolation might also be necessary between from and to !
// TODO: Check use of jumpamplifier.
if (data.fromX != Double.MAX_VALUE && yDistance > 0 && yDistance <= 0.5 + 0.2 * data.jumpAmplifier && data.sfLastYDist < 0 && !to.isOnGround()) {
// TODO: Might check fall distance.
if (data.fromX != Double.MAX_VALUE && yDistance > 0 && data.sfLastYDist < 0 && !to.isOnGround()) {
// TODO: Check if last-y-dist or sprinting should be considered.
if (setBackYDistance > 0D && setBackYDistance <= 1.5D + 0.2 * data.jumpAmplifier || setBackYDistance < 0 && Math.abs(setBackYDistance) < 3.0) {
// Interpolate from last to-coordinates to the from
@ -558,6 +586,9 @@ public class SurvivalFly extends Check {
}
}
}
}
// Nothing found.
return false;
}
@ -733,7 +764,7 @@ public class SurvivalFly extends Check {
* @param cc
* @return
*/
private double verticalAccounting(final long now, final PlayerLocation from, final PlayerLocation to, final double yDistance, final MovingData data, final MovingConfig cc) {
private double verticalAccounting(final long now, final PlayerLocation from, final PlayerLocation to, final double hDistance, final double yDistance, final MovingData data, final MovingConfig cc) {
double vDistanceAboveLimit = 0;
// y direction change detection.
// TODO: Consider using accounting for y-change detection.
@ -767,39 +798,20 @@ public class SurvivalFly extends Check {
// Vertical.
if (yDirChange && data.sfLastYDist > 0){
// Change to descending phase !
// data.vDistCount.clear(now);
// data.vDistSum.clear(now);
// data.vDistCount.add(1f);
// data.vDistSum.add((float) yDistance);
data.vDistAcc.clear();
data.vDistAcc.add((float) yDistance);
}
else if (data.verticalFreedom <= 0.001D) {
// Here yDistance can be negative and positive (!).
if (yDistance != 0D){
// final double accAboveLimit = verticalAccounting(now, yDistance, data.vDistSum, data.vDistCount ,tags, "vacc");
final double accAboveLimit = verticalAccounting(now, from, to, yDistance, data.vDistAcc ,tags, "vacc");
if (accAboveLimit > vDistanceAboveLimit){
// Account for lag.
// TODO: 1.1 might be too pessimistic.
// if (cc.lag && TickTask.getLag(data.vDistCount.bucketDuration() * data.vDistCount.numberOfBuckets(), true) > 1.1){
// data.vDistCount.clear(now);
// data.vDistSum.clear(now);
// data.vDistAcc.clear();
// }
// else{
// // Accept as violation.
// vDistanceAboveLimit = accAboveLimit;
// }
vDistanceAboveLimit = accAboveLimit;
}
}
}
else{
// TODO: Just to exclude source of error, might be redundant.
// data.vDistCount.clear(now);
// data.vDistSum.clear(now);
data.vDistAcc.clear();
}
}
@ -812,7 +824,7 @@ public class SurvivalFly extends Check {
* bucket 2, 0 is ignored. [Vertical accounting.]
*
* @param now
* @param value
* @param yDistance
* @param sum
* @param count
* @param tags
@ -820,11 +832,11 @@ public class SurvivalFly extends Check {
* @return absolute difference on violation.;
*/
// private static final double verticalAccounting(final long now, final double value, final ActionFrequency sum, final ActionFrequency count, final ArrayList<String> tags, String tag)
private static final double verticalAccounting(final long now, final PlayerLocation from, final PlayerLocation to, final double value, final ActionAccumulator acc, final ArrayList<String> tags, String tag)
private static final double verticalAccounting(final long now, final PlayerLocation from, final PlayerLocation to, final double yDistance, final ActionAccumulator acc, final ArrayList<String> tags, final String tag)
{
// sum.add(now, (float) value);
// count.add(now, 1f);
acc.add((float) value);
acc.add((float) yDistance);
// TODO: Add on-eq-return parameter
// if (count.bucketScore(2) > 0 && count.bucketScore(1) > 0) {
final int i1, i2;
@ -845,8 +857,9 @@ public class SurvivalFly extends Check {
final double diff = sc1 - sc2;
final double aDiff = Math.abs(diff);
// TODO: Relate this to the fall distance !
if (diff > 0 || value > -1.1 && aDiff <= 0.07) { // TODO: sharpen later (force speed gain while falling).
if (value < -1.1 && (aDiff < Math.abs(value) || sc2 < - 10)){
if (diff > 0 || yDistance > -1.1 && aDiff <= 0.07) { // TODO: sharpen later (force speed gain while falling).
if (yDistance < -1.1 && (aDiff < Math.abs(yDistance) || sc2 < - 10)){
// High falling speeds are somewhat ok.
tags.add(tag + "grace");
return 0;
}