Thread: Fatal: dropping packet

Anyone know whats causing this?

Code:

[09/05/20 23:26]: [player-1]: Invalid waypoint in walking queue!
[09/05/20 23:26]: [player-1]: Fatal: couldn't find connection vertex! Dropping packet.

mainly happens when attacking npcs and players with ranged or mage, and I move around fast I get this and then the clicks on the gamescreen are very off, like not calibrated.

Spoiler for Code:

Code:

public int getNextWalkingDirection() {
		if(wQueueReadPtr == wQueueWritePtr) 
			return -1;		
		int dir;
		do {
			dir = Misc.direction(currentX, currentY, walkingQueueX[wQueueReadPtr], walkingQueueY[wQueueReadPtr]);
			if(dir == -1) {
				wQueueReadPtr = (wQueueReadPtr+1) % walkingQueueSize;
			} else if((dir&1) != 0) {
				println_debug("Invalid waypoint in walking queue!");
				resetWalkingQueue();
				return -1;
			}
		} while((dir == -1) && (wQueueReadPtr != wQueueWritePtr));
		if(dir == -1) return -1;
		dir >>= 1;
			currentX += Misc.directionDeltaX[dir];
			currentY += Misc.directionDeltaY[dir];
			absX += Misc.directionDeltaX[dir];
			absY += Misc.directionDeltaY[dir];
			return dir;
	}

Code:

	public synchronized void postProcessing() {		
		if(newWalkCmdSteps > 0) {
			int firstX = getNewWalkCmdX()[0], firstY = getNewWalkCmdY()[0];	

			int lastDir = 0;
			boolean found = false;
			numTravelBackSteps = 0;
			int ptr = wQueueReadPtr;
			int dir = Misc.direction(currentX, currentY, firstX, firstY);
			if(dir != -1 && (dir&1) != 0) {				
				do {
					lastDir = dir;
					if(--ptr < 0) 
						ptr = walkingQueueSize-1;

					travelBackX[numTravelBackSteps] = walkingQueueX[ptr];
					travelBackY[numTravelBackSteps++] = walkingQueueY[ptr];
					dir = Misc.direction(walkingQueueX[ptr], walkingQueueY[ptr], firstX, firstY);
					if(lastDir != dir) {
						found = true;
						break;		
					}

				} while(ptr != wQueueWritePtr);
			}
			else found = true;	

			if(!found) println_debug("Fatal: couldn't find connection vertex! Dropping packet.");
			else {
				wQueueWritePtr = wQueueReadPtr;		

				addToWalkingQueue(currentX, currentY);	

				if(dir != -1 && (dir&1) != 0) {


					for(int i = 0; i < numTravelBackSteps-1; i++) {
						addToWalkingQueue(travelBackX[i], travelBackY[i]);
					}
					int wayPointX2 = travelBackX[numTravelBackSteps-1], wayPointY2 = travelBackY[numTravelBackSteps-1];
					int wayPointX1, wayPointY1;
					if(numTravelBackSteps == 1) {
						wayPointX1 = currentX;
						wayPointY1 = currentY;
					}
					else {
						wayPointX1 = travelBackX[numTravelBackSteps-2];
						wayPointY1 = travelBackY[numTravelBackSteps-2];
					}

					dir = Misc.direction(wayPointX1, wayPointY1, wayPointX2, wayPointY2);
					if(dir == -1 || (dir&1) != 0) {
						println_debug("Fatal: The walking queue is corrupt! wp1=("+wayPointX1+", "+wayPointY1+"), "+
								"wp2=("+wayPointX2+", "+wayPointY2+")");
					}
					else {
						dir >>= 1;
					found = false;
					int x = wayPointX1, y = wayPointY1;
					while(x != wayPointX2 || y != wayPointY2) {
						x += Misc.directionDeltaX[dir];
						y += Misc.directionDeltaY[dir];
						if((Misc.direction(x, y, firstX, firstY)&1) == 0) {
							found = true;
							break;
						}
					}
					if(!found) {
						println_debug("Fatal: Internal error: unable to determine connection vertex!"+
								"  wp1=("+wayPointX1+", "+wayPointY1+"), wp2=("+wayPointX2+", "+wayPointY2+"), "+
								"first=("+firstX+", "+firstY+")");
					}
					else addToWalkingQueue(wayPointX1, wayPointY1);
					}
				}
				else {
					for(int i = 0; i < numTravelBackSteps; i++) {
						addToWalkingQueue(travelBackX[i], travelBackY[i]);
					}
				}


				for(int i = 0; i < newWalkCmdSteps; i++) {
					addToWalkingQueue(getNewWalkCmdX()[i], getNewWalkCmdY()[i]);
				}

			}

			isRunning = isNewWalkCmdIsRunning() || isRunning2;
		}
	}

How to make the error occur


What it looks like after the error throws
[23/05/20 10:41]: [player-1]: Invalid waypoint in walking queue!