# How to get the distance between two objects in the game engine?

So far I could only find the method to get the current position of the objects. I think there is a method that returns the distance between them.

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I make BGE tutorials on my channel, and I have this exact solution, scripts, and .blend file in the description. Just keep watching through the video, I believe I show you how 3 minutes through. youtube.com/watch?v=d2BL9AxORec – Shane Johnson Jun 7 '14 at 18:10

I am not sure how you plan on telling blender which two objects. Assuming they are both selected.

``````import bpy
from math import sqrt

def get_distance():
"""
return: float. Distance of the two objects
Must select two objects
"""
l = []  # we store the loacation vector of each object
for item in bpy.context.selected_objects:
l.append(item.location)

distance = sqrt( (l[0][0] - l[1][0])**2 + (l[0][1] - l[1][1])**2 + (l[0][2] - l[1][2])**2)
print(distance)  # print distance to console, DEBUG
return distance

get_distance()
``````
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I think the OP means in the BGE. – gandalf3 Feb 18 '14 at 22:12
How do I see the output of print in that part of the blender visualize? – Guilherme Feb 19 '14 at 2:25
in the console, aka terminal/cmd. You need to start blender form the console though as well – Vader Feb 19 '14 at 2:27
@Guilherme If you choose to mark this as accepted, please rephrase your question to correlate with it as this does not apply to the bge. Also, use of `bpy` in the bge is discouraged. – iKlsR Feb 19 '14 at 3:06
This answer isn't the game engine. – ideasman42 Apr 18 '14 at 10:50

You can use `mathutils.Vector` locations

``````import bge

scene = bge.logic.getCurrentScene()
# the object the sensor is connected to
owner = bge.logic.getCurrentController().owner
# the other object you want to get the distance to
obj2 = scene.objects['obj_name']
length = (owner.worldPosition - obj2.worldPosition).length

print(length)
``````

This allows for easier manipulation, so for example if you only want to measure distance on a map (without taking altitude into account) you can do.

``````length = (owner.worldPosition.xy - obj2.worldPosition.xy).length
``````
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That would be `getDistanceTo`. It will calculate and return the distance between two objects from their origins.

``````import bge

scene = bge.logic.getCurrentScene()
# the object the sensor is connected to
owner = bge.logic.getCurrentController().owner
# the other object you want to get the distance to
obj2 = scene.objects['obj_name']
length = owner.getDistanceTo(obj2)

print(length)
``````
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