[Solved] Get Group Center

[ZiBitheWand3r3r]

Hello,
I'm looking for a way to get center point of unit group. Group consist of 2 .. 10 units. Im controlling these units by scripts (custom AI). What you think is the simplest way to get center point of group members. Units may move, attack etc, so their positions still changing.

 

[Nowow]

If your group always has the same units an average of both x and y locations should suffice. Loop over all units getting x and y coordinates and divide by group size.

Is that sum custom script I hear about? :O

 

[ISL]

Pick every unit in your unit group and sumarize their X and Y locations
Then divide both sums you just got by the total group size

And there you go! You just got X and Y values for the point which is the center of your unit group
Hope it helps

 

[Chaosy]

Why not:

get highest X/Y value
get lowest X/Y value

(highest - lowest) / 2 = center

 

[nedio95]

Why not:

get highest X/Y value
get lowest X/Y value

(highest - lowest) / 2 = center

Hmmmm, this would support bigger unit groups, but I don't think that the difference matters for practical purposes, unless you are making a 1 vs 1 million in war3... with actually 1 mil units on screen...

@xISLx 's method is simpler, works faster and is more accurate.

PS: Although, I like yours more

 

[IcemanBo]

Center of max/min is not very the center of all units combined. Like for example if 99 units are at Point(0/0), and only one unit at Point(100/100), then the center of entire group is not Point(50/50), but at Point(1/1). Adding all X's and Y's and dividing through number of units sounds good.

 

[Chaosy]

Depends on what center means.
It is different kinds of center.

I imagine drawing a rect around the units in the group and get the center of that.

 

[ZiBitheWand3r3r]

Hmm, to be honest I imagined this like Chaosy did with drawing rectangle example.
It supposed to be used in a game as a check if units are to stretched, so getting a center point with average distance to this center is what I'm trying to achieve.
On the other hand, looking at IcemanBo example maybe it will be smarter to just order this one unit (on point 100/100) to join the others? I have to think about this, however solutions are given. Thanks so much guys.

 

[Dr Super Good]

There are statistical measures for how spread out samples are. Instead of trying to reinvent the wheel I suggest using one.

One such measure is standard deviation. If the group of units has a large standard deviation of their position samples then they are spread out. Of course others might exist.