• Journal of Korean Institute of Industrial Engineers
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• v.12 no.1
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• pp.95-105
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• 1986

This paper presents an adaptive algorithm to generate a near-optimal closed-loop solution for a non-zero sum differential game by periodically updating the solutions of the two-point boundary-value problem. Applications to competitive advertising problem show that the adaptive algorithm can be used as an efficient tool to solve the differential game problem in which one player may take advantage of the other's non-optimal play.

• Journal of Korea Game Society
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• v.9 no.1
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• pp.115-125
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• 2009

Recently graphic hardwares have been developed remarkably, and domestic and foreign game users have demanded realistic and spectacular game graphics. Graphic special effects are one of methods to satisfy these requests, but we have not known any cases where graphic special effects are general and thus reusable. Based on the implementation of our graphic special effect engine and its application cases, this paper describes how to easily exploit graphic special effects in developing games. We define a standard file format in which special effect data can be saved and loaded, and thus those data can be reused easily. We also show that developers can test or preview special effects by exploiting our graphic special effect tool even before producing games.

• International Journal of Internet, Broadcasting and Communication
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• v.8 no.2
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• pp.75-80
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• 2016

Objectives : The objective of this study is to examine the experiences of Internet game experience targeting to University students in Korea. Research topics was "What is meaning of internet game to the University students?" Methods : Classical phenomenology underpinned this study. Seven qualitative studies of University students were conducted between 20 and 23 years old. Semi-structured interviews were conducted. Interviews were audio recorded and transcribed verbatim. Phenomenological thematic analysis of data was undertaken. Results : The findings pivot around three interconnected themes :[Expectations for the emotional needs], [Spend time in the cyberspace], [Relieve stress throughout the game], [Instead of satisfaction from virtual reality], [Internet gaming repeat and desires]. The basic need for getting into internet game was [satisfaction from virtual reality was identified]. While internet games was eliminated stress, [Expectations for the emotional needs] and [Spend time in the cyberspace] were the catalyst that makes them repeatedly getting into Internet the game. Based on the result, I suggest that Internet gaming should be recognized as a tool to relieve stress for college students, But it is not satisfied with the reality in virtual space. Therefore, the strategy must be to recognize reality accompanying. And Using a lot of time in cyberspace make them cause of internet game addiction. Therefore, it requires a systematic strategy for the Internet using time limits. Also the emotional needs met were motivated to repeat an Internet game. So another way to meet the emotional needs to college students should be sought.

• Journal of Korea Game Society
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• v.19 no.5
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• pp.151-164
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• 2019

In this study, we developed a visual novel game as one of the donation campaign strategies. In study 1, we developed a visual novel game for the elderly who live alone. In study 2, we also examine how game affects personal distress and empathic concern, the emotions that trigger help behavior. The results showed that game can promote both emotions effectively. Moreover, empathic concern completely mediated between game and donation intention. This result suggests that visual novel games can be an effective tool for stimulating user's altruistic motivation to do donation behavior.

• International Journal of Contents
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• v.4 no.3
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• pp.35-40
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• 2008

Recently, almost games are using the 3D environment. Therefore, it required strongly that well-structured 3D engine or tools for development of some complicate 3D applications efficiently. In this paper, we design and implement a 3D engine (PLay engine) using the DirectX 9 SDK of the Microsoft corporation. The PLay engine has independent module structure, which has object oriented characteristics. and has not only 3D rendering functions but efficient algorithms. Moreover, we implement some tools what has compatibility with our engine for convenience. Therefore, it helps development of a 3D application easily and efficiently. We also describe each module with 2-layer structure, and each tool with compatible module, and make a simple game using PLay engine for testify.

• Journal of Korea Game Society
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• v.2 no.2
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• pp.72-77
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• 2002

Sound contents of these days are in the trend of 3D surround audio which has much higher quality then CD audio with the aid of DVD, Development environments of sound contents should be advanced and the efficient application of this system is quite necessary. In this paper, we proposed an improving method for utilizing sound/audio card systems which are necessory for developing game and multimedia sound contents as well as relate know-hows of producing 3D sounds with sound production tools for their efficient usages and applications.

• Journal of the Korean Chemical Society
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• v.62 no.2
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• pp.159-165
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• 2018

For the first time, the spot the differences (STD) game was employed in the teaching of basic organic chemistry course. Three sets of paired pictures associated with selected topics in organic chemistry were presented to the students and they were required to spot the differences between the two pictures. Based on the students' pre and post self-assessment, the STD game resulted in several positive learning outcomes as indicated in the students' reflective writing, including knowledge recall, deeper understanding of a subject, enhanced analytical skill, motivation and fun-filled learning, learning from peers and self-empowerment in learning. The STD game is a desirable teaching and learning tool, as learning in an entertaining and interactive way is highly sought after in today's classroom, especially to novice students. In the future, the STD game can be modified and implemented to cater the needs of different courses and topics.

• Journal of Korea Game Society
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• v.17 no.4
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• pp.17-24
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• 2017

This paper describes the general process of making augmented reality game for real objects without markers. In this paper, point cloud data created by using slam technology is edited using a separate editing tool to optimize performance in mobile environment. Also, in the game execution stage, a lot of load is generated due to the extraction of feature points and the matching of descriptors. In order to reduce this, optical flow is used to track the matched feature points in the previous input image.

• Journal of Game and Entertainment
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• v.2 no.2
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• pp.9-16
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• 2006

This paper introduces the case study of constructing a quest engine system in a commercial online game. The system can help several operations for quests such as modeling and execution with a dedicated script language. Since the many attributes of a quest, including the type or preconditions or execution ordering of quests, could be represented well with the script, game developers can constitute and modify a quest system very easily. Thus it is expected that the quest system introduced in this paper can be a good guideline to the developers of online RPG games.

• Journal of Korea Multimedia Society
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• v.25 no.6
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• pp.852-865
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• 2022

During the COVID-19 pandemic, games played an important role in people's lives. Numerous online users flocked to the game platform, and brand companies started using online games to promote their products. Medical institutions have also implemented policies for healthy physical activity through online games. In order to attract more global game users, research on immersion in games is also very important to prevent users from leaving the platform. Therefore, it is necessary to analyze the common immersion elements of popular games by country and study them from the perspective of changing devices. In this paper, representative popular games of Korea, China, and Japan, which are recently called the dark horse of the game industry, are classified by devices of mobile, online PCs, and VR games and analyzed using immersion analysis tools proposed by researcher. Next, the representative metaverse games of the Web 3.0 era were analyzed, and their characteristics were compared with the results of the immersion analysis between Korea, China, and Japan, and proposed as game immersion elements suitable for metabus games.