book

Build Your Own 2D Game Engine and Create Great Web Games: Using HTML5, JavaScript, and WebGL

Name: Build Your Own 2D Game Engine and Create Great Web Games: Using HTML5, JavaScript, and WebGL
ISBN: 9781484209523

by Kelvin Sung, Jebediah Pavleas, Fernando Arnez, Jason Pace

October 2015

Intermediate to advanced

496 pages

13h 43m

English

Apress

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Cover
Title
Copyright
Dedication
Contents at a Glance
Contents
About the Author
About the Technical Reviewer
Acknowledgments
Introduction

Chapter 1: Introducing 2D Game Engine Development with JavaScript
The TechnologiesSetting Up Your Development EnvironmentDownloading and Installing JavaScript Syntax CheckerWorking in the NetBeans Development EnvironmentCreating an HTML5 Project in NetBeansThe Relationship Between the Project Files and the File SystemHow to Use This BookHow Do You Make a Great Video Game?ReferencesTechnologies
Chapter 2: Working with HTML5 and WebGL
IntroductionCanvas for DrawingThe HTML5 Canvas ProjectSeparating HTML and JavaScriptThe JavaScript Source File ProjectObservationsElementary Drawing with WebGLThe Draw One Square ProjectObservationsAbstraction with JavaScript ObjectsThe JavaScript Objects ProjectObservationsSeparating GLSL from HTMLThe Shader Source Files ProjectSource Code OrganizationChanging the Shader and Controlling the ColorThe Parameterized Fragment Shader ProjectSummary
Chapter 3: Drawing Objects in the World
IntroductionEncapsulating DrawingThe Renderable Objects ProjectObservationsTransforming a Renderable ObjectMatrices as Transform OperatorsThe glMatrix LibraryThe Matrix Transform ProjectObservationsEncapsulating the Transform OperatorThe Transform Objects ProjectThe Transform ObjectView, Projection, and ViewportsCoordinate Systems and TransformationsThe View Projection and Viewport ProjectThe CameraThe Camera Objects ProjectSummary
Chapter 4: Implementing Common Components of Video Games
IntroductionThe Game LoopThe Game Loop ProjectKeyboard InputThe Keyboard Support ProjectResource Management and Asynchronous LoadingThe Resource Map and Shader Loader ProjectGame Level from a Scene FileThe Scene File ProjectScene Object: Client Interface to the Game EngineThe Scene Objects ProjectAudioThe Audio Support ProjectSummaryGame Design Considerations
Chapter 5: Working with Textures, Sprites, and Fonts
IntroductionTexture Mapping and Texture CoordinatesThe Texture Shaders ProjectDrawing with Sprite SheetsThe Sprite Shaders ProjectSprite AnimationsOverview of Animated Sprite SheetsThe Sprite Animation ProjectFonts and Drawing of TextBitmap FontsThe Font Support ProjectSummaryGame Design Considerations
Chapter 6: Defining Behaviors and Detecting Collisions
IntroductionGame ObjectsThe Game Objects ProjectChasing of a GameObjectVectors ReviewThe Front and Chase ProjectCollisions Between GameObjectsBounding BoxThe Bounding Box and Collisions ProjectPer-Pixel CollisionsThe Per-Pixel Collisions ProjectGeneralized Per-Pixel CollisionsVector Review: Components and DecompositionThe General Pixel Collisions ProjectPer-Pixel Collisions for SpritesThe Sprite Pixel Collisions ProjectSummaryGame Design Considerations
Chapter 7: Manipulating the Camera
IntroductionCamera ManipulationsThe Camera Manipulations ProjectInterpolationThe Camera Interpolations ProjectCamera Shake EffectThe Camera Shake ProjectMultiple CamerasThe Multiple Cameras ProjectMouse Input Through CamerasThe Mouse Input ProjectSummaryGame Design Considerations
Chapter 8: Implementing Illumination and Shadow
IntroductionOverview of Illumination and GLSL ImplementationAmbient LightThe Global Ambient ProjectLight SourceGLSL Implementation and Integration into the Game EngineThe Simple Light Shader ProjectMultiple Light Sources and Distance AttenuationThe Multiple Lights ProjectDiffuse Reflection and Normal MappingThe Normal Maps and Illumination Shaders ProjectSpecular Reflection and MaterialsIntegration of Material in the Game Engine and GLSL ShadersThe Material and Specularity ProjectLight Source TypesThe Directional and Spot Lights ProjectShadow SimulationThe Shadow Simulation AlgorithmThe Shadow Shaders Project
Summary
Game Design Considerations
Chapter 9: Integrating Physics and Particles
IntroductionPhysics OverviewMovementCollision DetectionCollision ResolutionDetecting CollisionsThe Rigid Shape Bounds ProjectResolving CollisionsThe Rigid Shape Impulse ProjectParticles and Particle SystemsThe Particles ProjectParticle EmittersThe Particle Emitters ProjectSummaryGame Design Considerations
Chapter 10: Supporting Camera Background
IntroductionTiling of the BackgroundThe Tiled Objects ProjectSimulating Motion Parallax with Parallax ScrollingThe ParallaxObjects ProjectLayer ManagementThe Layer Manager ProjectSummaryGame Design Considerations
Chapter 11: Building a Sample Game: From Design to Completion
Part 1: Refining the ConceptPart 2: Integrating a SettingContextual Images Bring the Setting to LifeDefining the Playable SpaceAdding Layout to the Playable SpaceTuning the Challenge and Adding FunFurther Tuning: Introducing EnemiesGeneral ConsiderationsPart 3: Integrating Additional Design ElementsVisual DesignGame AudioInteraction ModelGame Systems and Meta GameUser Interface (UI) DesignGame NarrativeBonus Content: Adding a Second Stage to the LevelSummary
Index

Overview

Build Your Own 2D Game Engine and Create Great Web Games teaches you how to develop your own web-based game engine step-by-step, allowing you to create a wide variety of online videogames that can be played in common web browsers. Chapters include examples and projects that gradually increase in complexity while introducing a ground-up design framework, providing you with the foundational concepts needed to build fun and engaging 2D games. By the end of this book you will have created a complete prototype level for a side scrolling action platform game and will be prepared to begin designing additional levels and games of your own.

This book isolates and presents relevant knowledge from software engineering, computer graphics, mathematics, physics, game development, game mechanics, and level design in the context of building a 2D game engine from scratch. The book then derives and analyzes the source code needed to implement these concepts based on HTML5, JavaScript, and WebGL.

After completing the projects you will understand the core-concepts and implementation details of a typical 2D game engine and you will be familiar with a design and prototyping methodology you can use to create game levels and mechanics that are fun and engaging for players. You will gain insights into the many ways software design and creative design must work together to deliver the best game experiences, and you will have access to a versatile 2D game engine that you can expand upon or utilize directly to build your own 2D games that can be played online from anywhere.

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