Move Objects in Blender Game Engine

This article describes a way to „pick and move objects“ in Blender Game Engine.

Unfortunately a lot of published code is not working with the current version of Blender or depends on specific objects within the scene.

I wrote the code to try some 3D Collision Shapes. In order to do that, i wanted to have the objects movable to see how they interact with other objects.

Let me know if you see any improvements and leave a comment if it’s useful for you.

The code does the following:

• pick an object with left or right mouse click
• move it as long as the mouse is clicked, release it otherwise
• move on x/y plane with LMB, move on y/z plane with RMB

Currently i’m fine with moving them with 3DOF, so i can move them in X,Y and Z direction.

I have written this little script, which is triggered by MouseOverAny, Left Mouse Button Click and Right Mouse Button Click.

I’ve assigned the sensors to the camera, which i thought is probably the only object that will stay within the scene.

import bge

cont = bge.logic.getCurrentController()
LMB = cont.sensors["LMB"]
RMB = cont.sensors["RMB"]
if LMB.positive | RMB.positive:    
    mouseOver = cont.sensors["MouseOver"]
    obj = mouseOver.hitObject
    mouseX = mouseOver.hitPosition[0]
    mouseY = mouseOver.hitPosition[1]
    mouseZ = mouseOver.hitPosition[2]

    if LMB.positive: 
        obj.position[0] = mouseX
        obj.position[1] = mouseY
    if RMB.positive:
        obj.position[1] = mouseY
        obj.position[2] = mouseZ

The assignments can be seen here:

As i’ve received some good information through YouTube videos, let me know if anyone is interested in seeing some videos from Anagram as well.

I’ve added a linked object and want to move it. How can I do?

If you want to move linked objects, you have to make them a proxy.

CTRL + ALT + P

will do so.