Patent ID: 8909506

Claim:
A program stored in a non-transitory computer readable information storage medium, for causing a computer to function as an information processing system for controlling a movement of an object placed in a virtual space, the program including: object changing instructions to change at least one of a position and a direction of an object to be moved placed in the virtual space based on a value of a parameter associated with a physical quantity that is an attribute of the object to be moved; first change determination instructions to determine a first change in the physical quantity of the object to be moved, the first change corresponding to a user's operation; second change determination instructions to determine a second change in the physical quantity of the object to be moved, the second change corresponding to and different from the determined first change; and value changing instructions to change a value of the parameter based on the first change and the second change, wherein the object changing instructions include instructions to change, after the value of the parameter is changed, at least one of the position and the direction of the object to be moved based on the changed value of the parameter, wherein the first change determination instructions include instructions to determine changing a force applied to at least one of a plurality of elements included in the object to be moved, and wherein the second change determination instructions include instructions to determine changing a mass or a moment of inertia of at least one of the elements.