Can Vector objects be instable?

Newbie & Debugging Questions
#1

Hey!

I have a newbie q for ya’ll =)

Im having some problems with a path route system that i have made for my editor, this system is used to make patrol routes for enemies in the game, to do this you have to get into the path route mode.
When youre here you click with left mb to add a path point and right mb to delete the last point in the route.

The thing now is that sometimes when i put a point ner another enemy, the active enemy just dissapears and the enemy thats closest to the new point gets to be the active enemy, this i think is pretty wierd and anoying.

So the question is: Can Vector objects be unstable and work in paculiar ways or is it my code that is funky?

here’s some code:

Enemy path mode:


			if(enemyPath)
			{
				if(me.getButton() == 1)
				{
					if(me.getX() > 40 && me.getX() < 140 && me.getY() > 30 && me.getY() < 50)
					{
						enemyPath = false;
						firstClick = false;
					}
					else if(me.getX() > 20 && me.getX() < 600 && me.getY() > 20 && me.getY() < 500 && firstClick)
					{
						int i; 
						i = e.patrolCount;
						if(i < 23)
						{
							e.patrolRoute[i][0] = (double)(me.getX()-indexX);
							e.patrolRoute[i][1] = (double)(me.getY()-indexY);
							e.patrolCount++;
						}
					}
					else
						firstClick = true;
				}
				else
				{
					if(e.patrolCount > 0)
						e.patrolCount--;
				}
				m.e.set(activeEnemy, e);
			}

Activate Enemy Event:


			else if(me.getButton() > 1 && !enemyPath && !enemyMode && !enemyPref)
			{
				if(me.getX() > 20 && me.getX() < 600 && me.getY() > 20 && me.getY() < 500)
				{
					int TileX = (int)(me.getX()-indexX);
					int TileY = (int)(me.getY()-indexY);
					
					for(int i = 0; i < m.e.size(); i++)
					{
						e = m.e.get(i);
						
						if(TileX > e.pos[0] && TileX < e.pos[0] + 48 && TileY > e.pos[1] && TileY < e.pos[1] + 48)
						{
							activeEnemy = i;
							enemyMode = true;
						}
					}
				}
			}

Tnx

#2

Hmm.

Vector should be pretty hard to screw up as AIR its absoltuely, paranoidly, thread safe.
For that reason its often recommended you use the List objects instead and do your own
syncronization where it matters. If you knwo what you are doing, this can give you better performance as you will only have threads blockign each other where it is really encessary.

But to answer your primnary question, no. Given how thread safe Vectors are I cant imagine any way you could be making things just disappear from them. Id suggest you check your other code.

#3

hehe ok, good to know, then i’ll start deepsearching every line that has with the Vector objects to do, so that i can solve that problem.
I’ll be taking a check at the list object solvation to, see if its something that fits better in the code design =)

Very well, thanx for the help!