• Journal of the Korea Society of Computer and Information
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• v.13 no.6
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• pp.253-261
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• 2008

Mobile games will be one of independent industries on game areas and take the fourth standing in the important platform since PC Games, TV Games, and Palm Games. There are several reasons why mobile games will differ in their platform, behaviors, and habits. According to the data of market consultation about the figure of mobile-game players throughout the world, the Mobile game will increase steadily from 780 million in 2007 to 1860 million in 2010. Also, market income will mount up from $42,100 million to $87,000 million. 3D games have been playing important roles in our lives. Satisfying users' needs in high-quality games, they have been growing and attracting more people with their powerful visual effects and the three-dimensional design player. We cannot emphasize their tremendous visual impacts and animation effects too much. This paper displays how to design 3D application based on J2ME (Java 2 Micro Edition) and shows free movement of 3D objects receiving and responding to the keyboard of mobile devices withWTK (Wireless ToolKit) simulator on the 3D screen.

• Journal of Korea Multimedia Society
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• v.10 no.7
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• pp.934-943
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• 2007

This paper presents a real-time fire simulation on the mobile phone using stable fluid animation techniques. Stable and fast fluid simulation methods are developed in PC and console games, but fluid simulation and interactive fluid models require too much system resources for applying on mobile environment. We studied and implemented physics-based models for fluids like fire and smoke effects using billboard and stable fluids simulation method on mobile 3D system. The mobile platform of our system is WIPI, which is the standard mobile platform in Korea, also we adopted NF3D API for our 3D programming API. We implemented real-time fire simulation and added it in mobile 3D game, "Rupee Story".

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.173-174
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• 2013

최근 다양한 모바일 기기의 발달로 인하여 새로운 응용 애플리케이션의 기술력도 같이 성장하고 있다. 이런 성장과 더불어 게임 애플리케이션도 다양화 되고 있으나 고전게임, 그 중에서도 개발이 가장 빈약한 비행기 슈팅게임에 센서기능을 추가해서 화면터치만을 이용한 대부분의 게임 진행방식을 가속도 센서를 이용하여 비행기 기체를 움직일 수 있도록 다른 게임 애플리케이션과는 차이를 두었고, 또 JSON을 사용하여 로그인 및 회원가입 그리고 랭킹 시스템을 추가시켜 게임을 더 즐길 수 있도록 하였다. 이를 통해 중장년층에게 스마트폰의 새로운 기능인 센서와 스마트폰 게임 애플리케이션에 한층 가까워질 수 있는 계기를 제공하였다.

• Journal of Korea Game Society
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• v.16 no.6
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• pp.49-58
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• 2016

This paper proposes three schemes of one-hand control that can be used in the First-Person Viewpoint mobile games and evaluates them. Displaying virtual controllers on the screen, the existing mobile games use schema that allows users use both hands. In the First-Person Viewpoint mobile games, however, one-hand control is possible because smaller number of functions for viewpoint movement is required. This research proposes three one-hand control schemes for First-Person Viewpoint movement and rotation, and evaluates them using AHP. The experiment results prove that one-hand control schemes are more useful than both-hands control schemes for the mobile game users.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.61-64
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• 2022

국내 게임 시장 규모가 20조원에 육박할 것으로 전망된 가운데, 내년 게임업계 화두로 메타버스와 NFT가 가장 주요한 이슈가 될 것이다. 메타버스 환경에서의 변화는 편의성, 상호작용 방식, 화면 공간 확장성 측면에서 기존 PC, 모바일 기반의 인터넷 시대와 메타버스 시대는 확실하게 차이가 존재한다. 기존에 비해 혁신적인 변화의 특징들에 대해서 메타버스 환경에서 게임들의 특징들도 무관하지 않을 것으로 생각한다. 본 논문에서는 메타버스 플랫폼에서의 게임개발이 활성화되는 환경에서 메타버스 기반에서 개발되고 플레이 되는 게임들에 대한 품질 보증(Quality Assurance : QA) 혹은 테스트를 위한 방법과 내용에 대해서 기존의 방법들과의 차이점과 향후 메타버스 환경에서의 게임 품질을 측정하는 새로운 요소들에 대해서 제시하고자 한다.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.583-590
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• 2006

유비쿼터스 시대가 도래 하면서 그 변화의 중심은 모바일에 집중되고 있다. 모바일 컨텐츠는 문자 메시지 서비스(SMS)로부터 시작하여 멀티미디어 컨텐츠 서비스(MMS)로 발전하였다. 현재 DMB 서비스로 발전한 모바일 서비스는 앞으로 유비쿼터스 시대에 흐름과 기기의 발전에 따라 더욱 발전할 것으로 예상된다. 따라서 현재 모바일의 상호작용성과 기기적 특성을 이용한 컨텐츠 개발이 그 어느 때보다 필요한 시점이다. 모바일 기기에서 게임, 벨소리, 광고, 동영상, 캐릭터 등 다양한 컨텐츠가 제공되고 있다. 그 중에서도 애니메이션은 배경화면과 캐릭터 서비스로 모바일 기기에서 가장 널리 쓰이는 컨텐츠로 자리 잡았다. 그러나 이러한 컨텐츠들은 모바일의 기기가 양방향성의 특성을 가지고 있음에도 불구하고 게임을 제외한 컨텐츠들은 일방향성에 그치고 있는 실정이다. 인터렉티브 애니메이션(Interactive animation)은 사용자가 수동적으로 보는 것과 달리 매개체를 이용하여 보다 능동적으로 볼 수 있는 애니메이션을 말한다. 인터렉티브 애니메이션은 양방향의 모바일 기반으로 적합하며, 사용자에게 새로운 경험을 줄 것이라 기대한다. 이에 본 논문은 모바일 애니메이션의 현황과 Flash Lite 2.0 에 의한 제작방법, 모바일 인터렉티브 애니메이션의 제작 실례를 통해 인터렉티브 애니메이션 컨텐츠 제작의 가능성을 제시한다.

• Journal of Digital Contents Society
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• v.18 no.7
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• pp.1239-1248
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• 2017

The domestic game market is still on a trend of growth. Particularly, as the demand for mobile games is increased, the mobile version is developed in a growing number of cases even after the launch of the games for PCS. In a bid to search for the effective method of UI design depending on the differences between the platforms, this study analyzed the types of different media in the first place and as the approaches to the UI design based on the affordance concept, implemented on the platform of PCS and implemented on the platform of mobile devices were analyzed as the cases which are the same MMORPG games. Since the differences between the game platforms can cause the variations in the physical size of the screens depending on the environment in which the user interface (UI) is rendered and may often involve the controls implemented by the touch of screens rather than the manipulation based on the keyboard and mouse, they usually give the influences on the direction of UI designs. By analyzing these UI elements based on the affordance concept, it may be possible to find the effective method of UI design in the future.

• Journal of Korea Game Society
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• v.8 no.2
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• pp.85-96
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• 2008

Recently, research on augmented games as a new game genre has attracted a lot of attention. An augmented game overlaps virtual objects in an augmented reality(AR) environment, allowing game players to interact with the AR environment through manipulating real and virtual objects. However, it is difficult to release existing augmented games to ordinary game players, as the games generally use very expensive and inconvenient 'backpack' systems: To solve this problem, several augmented games have been proposed using mobile devices equipped with cameras, but it can be only enjoyed at a previously-installed location, as a ‘color marker' or 'pattern marker’ is used to overlap the virtual object with the real environment. Accordingly, this paper introduces an augmented game, called augmented galaga based on traditional well-known galaga, executed on mobile devices to make game players experience the game without any economic burdens. Augmented galaga uses real object in real environments, and uses scale-invariant features(SIFT), and Euclidean distance to recognize the real objects. The virtural aliens are randomly appeared around the specific objects, several specific objects are used to improve the interest aspect, andgame players attack the virtual aliens by moving the mobile devices towards specific objects and clicking a button of mobile devices. As a result, we expect that augmented galaga provides an exciting experience without any economic burdens for players based on the game paradigm, where the user interacts with both the physical world captured by a mobile camera and the virtual aliens automatically generated by a mobile devices.

• Information Systems Review
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• v.7 no.2
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• pp.41-59
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• 2005

Mobile games have emerged as the most innovative entertainment technology adding new revenue streams, taking advantage of the potential of wireless consumer applications and service offerings. Mobile games, like any other types of computer game, offer a unique value for users in providing an exciting digital experience in virtual worlds. Players can become empowered through the development of new characters and strategies within games to achieve rewarding successes against the computers and other players. In this paper, we attempt to investigate the factors influencing the usage and acceptance of the mobile games in Korea, based on the extended version of the Technology Acceptance Model(TAM). Based on data collected from survey, we show that perceived usefulness is the major determinant for users to play mobile games. Two factors, including perceived enjoyment and self-expressiveness, are empirically shown to determine perceived usefulness. In addition, perceived ease of use, rewards, operational quality of device, and design/story have been showed to significantly and directly affect perceived enjoyment. It was also confirmed that self-efficacy and operational quality of device are the antecedents of perceived ease of use. Based upon the statistical results, some useful guidelines for game development and market penetration strategies are also provided.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.135-138
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• 2011

본 논문은 안드로이드 기반 스마트폰의 간편 내기게임을 구현한 논문이다. 스마트폰 앱개발시 DB를 이용하여 빠른 시간내에 기획에서부터 모바일 배포까지 신속한 제작 및 이해를 돕고자 본 구현을 완료하였다. 화면을 통해 본인이 원하는 게임을 선택한 후 기 등록된 정보의 문제를 풀이하여 고득점자가 우승하는 형식으로 진행된다. 등록된 정보의 양과 우승자를 선정하기 위한 조건을 추가하여 보다 흥미있고 다각화된 게임으로 확장도 가능하다. 본 게임은 m-Bizmaker로 제작되었으며, 학생들의 아이디어를 손쉽게 스마트폰을 구현하여 보고 사업화하는 용도로 활용가능하다.