Create objects with specific positions.

Game Engine Game Engine Support and Discussion
1

Hi! I’m working on a simulation using Blender & Python. The thing is that i need to add objects to the scene in positions according to the results of some calculations made by a python script. Is there a way to do that? Also is there a way to eliminate those objets so i can create them again in new positions? Thanks in advance!!

2

1:Set up your logic bricks on an empty like this:
(Whatever sensor)-------->Python(script name)------->Edit Object(Add object)
name the edit object actuator “addObj” (no quotes)


g = GameLogic
cont = g.getCurrentController()
own = cont.getOwner()

own.setPosition([0,0,0])
#the numbers in the list [0,0,0] represent global coordinates. First number is for X-axis, second for Y-axis and third Z-axis.
#Change these numbers to whatever you want

add = cont.getActuator("addObj")
#Find the actuator named "addObj"
g.addActiveActuator(add,1)
#Turn on the actuator. Turning it off would be g.addActiveActuator(add,<b>0</b>)

This will make the empty move to position [0,0,0] or whatever you set it as, then add an object.

2:You don’t need to destroy them to put them in a new position, just set their position straight away with the part of the script above that goes like this:

 own.setPosition([0,0,0])

Hope that helps.

3

Thanks for the help! It works but i still have one problem. I’m trying to create multiple objects calling the python file only one time using a for cycle and i can’t make it work. The positions are decided by random numbers but only one object appears. If i call the file again it works but i need to do it calling it just once.

4

then youre looking for this bit of code


addObjectActuator.instantAddObject()

That will activate the atuatuator for each line that is read so for multiple addings just put it in a for loop ie


for x in range(10):
    addObjectActuator.instantAddObject()

this will add 10 objects in one run of the script

hope it helps :wink:

5

It works like a charm.
Thanks :wink: