I don’t know how to achieve this effect, I want to be able to have more than one object touch a surface, and adds a point to a counter. I thought may be using another object parented as a sensor, but that just conflicts with the physics of the objects which can fall to either fly off, or not be affected by another object.
an empty can not register anything, it’s an empty for a reason. However you can use a property on the empty and use that to set a state, but this can be done in the object it self as well.
to tackle the fall over hit ground add point thingy is a bit harder, never done it but if i think about it, i would make everything that can fall over out of 2 objects, a smal base that stands on the ground, and a pole on top of it, then when you let it fall over, the floor or anything can register the pole hitting the ground and adding a point. So the base is just there to keep the pole from hitting the ground for unwanted points to register.
At the top of the pole add a cube and parent it to the pole, make the cube a sensor.
Now let the floor look for the sensor, so if sensor hit ground add a point.
(the sensor then acts like the balls from the movie above)