For example, let's think about a scene where there are two objects: "Door", and "Button". "Door" has an animation which makes it transform and "open" itself. Now, is there a way to program "Button" in such a way that if it collides with a particular material (for example, the skin of the player), it triggers a "Collision" sensor, and a controller attached to the "Collision" sensor activates an actuator in the "Door" object that makes it play the animation?
I hope the situation mentioned above is clear. Thanks.