1.1 Definition of Interaction and Physical Interaction.
Interaction is a type of action that occurs when two or more objects influence or have an effect on each other. The idea of a two-way effect is important in the concept of interaction, as opposed to a one-way relationship on cause and effect.
Physical Interaction is a form of interaction that occurs when two or more people make contact using body language. In a gaming environment, physical interaction is one form of interaction that occurs when two or more objects make contact. Contacts that occur between these objects are generally collisions.
