Abstract: Game methods for controlling a game using virtual buttons and/or systems for performing the same are provided. The game method includes determining, by a processor of the computer, whether a virtual button is selected by a user from among one or more virtual buttons displayed on a touch screen of the game system, controlling, by the processor, a game in progress according to an input event of the user, which is input through a second portion of the touch screen, the second portion being different from the first portion, and performing, by the processor, different controls according to the virtual buttons respectively selected by the user.

Abstract: Provided is a method of producing a rhythm game according to an embodiment of the inventive concepts that includes extracting a main sound source of a music signal by based on a plurality of channel signals included in the music signal; extracting a peak period from the main sound source; and designating a rhythm note that requires a tap input from a user to correspond to a timing of the peak period.

Abstract: An image rendering method includes: loading, at an electronic device, an image by an application executed on the electronic device; loading, at the electronic device, reference color arrangement information; and determining, at the electronic device, a pixel format for a texture creation of the loaded image based on a comparison between a color value of the loaded image and the loaded reference color arrangement information.