Python Game Programming By Example - Programmer …

1 Python Game Programming By ExampleTable of ContentsPython Game Programming By ExampleCreditsAbout the AuthorsAbout the files, eBooks, discount offers, and moreWhy subscribe?Free access for Packt account holdersPrefaceWhat this book coversWhat you need for this bookWho this book is forConventionsReader feedbackCustomer supportDownloading the Example codeDownloading the color images of this bookErrataPiracyQuestions1. Hello, Pong!Installing PythonAn overview of BreakoutThe basic GUI layoutDiving into the Canvas widgetBasic game objectsThe Ball classThe Paddle classThe Brick classAdding the Breakout itemsMovement and collisionsStarting the gamePlaying BreakoutSummary2. Cocos InvadersInstalling cocos2dGetting started with cocos2dHandling user inputUpdating the sceneProcessing collisionsCreating game assetsSpace Invaders designThe PlayerCannon and GameLayer classesInvaders!Shoot em up!Adding an HUDE xtra feature the mystery shipSummary3.

2 Building a Tower Defense GameThe tower defense gameplayCocos2d actionsInterval actionsInstant actionsCombining actionsCustom actionsAdding a main menuTile mapsTiled Map EditorLoading tilesThe scenario definitionThe scenario classTransitions between scenesGame over cut sceneThe tower defense actorsTurrets and slotsEnemiesBunkerGame sceneThe HUD classAssembling the sceneSummary4. Steering BehaviorsNumPy installationThe ParticleSystem classA quick demonstrationImplementing steering behaviorsSeek and fleeArrivalPursuit and evadeWanderObstacle avoidanceGravitation gameBasic game objectsPlanets and pickupsPlayer and enemiesExplosionsThe game layerSummary5. Pygame and 3 DInstalling packagesGetting started with OpenGLInitializing the windowDrawing shapesRunning the demoRefactoring our OpenGL programProcessing the user inputAdding the Pygame libraryPygame 101 Pygame integrationDrawing with OpenGLThe Cube classEnabling face cullingBasic collision detection gameSummary6.

3 PyPlatformerAn introduction to game designLevel designPlatformer skillsComponent-based game enginesIntroducing PymunkBuilding a game frameworkAdding physicsRenderable componentsThe Camera componentThe InputManager moduleThe Game classDeveloping PyPlatformerCreating the platformsAdding pickupsShooting!The Player class and its componentsThe PyPlatformer classSummary7. Augmenting a Board Game with Computer VisionPlanning the Checkers applicationSetting up OpenCV and other dependenciesWindowsMacDebian and its derivatives, including Raspbian, Ubuntu, and Linux MintFedora and its derivatives, including RHEL and CentOSOpenSUSE and its derivativesSupporting multiple versions of OpenCVConfiguring camerasWorking with colorsBuilding the analyzerProviding access to the images and classification resultsProviding access to parameters for the user to configureInitializing the entire model of the gameUpdating the entire model of the gameCapturing and converting an imageDetecting the board s corners and tracking their motionCreating and analyzing the bird s-eye view of the boardAnalyzing the dominant colors in a squareClassifying the contents of a squareDrawing textConverting OpenCV images for wxPythonBuilding the GUI applicationCreating a window and binding eventsCreating and laying out images in the GUIC reating and laying out controlsNesting layouts and setting the root layoutStarting a background threadClosing a window and stopping a background threadConfiguring the analyzer based on user inputUpdating

4 And showing imagesRunning the applicationTroubleshooting the project in real-world conditionsFurther reading on OpenCVSummaryIndexPython Game Programming By ExamplePython Game Programming By ExampleCopyright 2015 Packt PublishingAll rights reserved. No part of this book may be reproduced, stored in a retrieval system,or transmitted in any form or by any means, without the prior written permission of thepublisher, except in the case of brief quotations embedded in critical articles or effort has been made in the preparation of this book to ensure the accuracy of theinformation presented. However, the information contained in this book is sold withoutwarranty, either express or implied. Neither the authors, nor Packt Publishing, and itsdealers and distributors will be held liable for any damages caused or alleged to be causeddirectly or indirectly by this Publishing has endeavored to provide trademark information about all of thecompanies and products mentioned in this book by the appropriate use of , Packt Publishing cannot guarantee the accuracy of this published: September 2015 Production reference.

5 1230915 Published by Packt Publishing Place35 Livery StreetBirmingham B3 2PB, Rodas de PazJoseph HowseReviewersBenjamin JohnsonDennis O BrienAcquisition EditorsOwen RobertsSonali VernekarContent Development EditorDharmesh ParmarTechnical EditorRyan KocheryCopy EditorVikrant PhadkeProject CoordinatorHarshal VedProofreaderSafis EditingIndexerRekha NairGraphicsJason MonteiroProduction CoordinatorManu JosephCover WorkManu JosephAbout the AuthorsAlejandro Rodas de Paz is a computer engineer and game developer from Seville, came across Python back in 2009, while he was studying at the University of developed several academic projects with Python , from web crawlers toartificial intelligence algorithms. In his spare time, he started building his own games inPython. He did a minor in game design at Hogeschool van Amsterdam, where he created asmall 3D game engine based on the ideas he learned during this has also developed some open source projects, such as a Python API for the PhilipsHue personal lighting system.

6 You can find these projects in his GitHub account to this publication, Alejandro collaborated with Packt Publishing as a technicalreviewer on the book Tkinter GUI Application Development would like to thank my parents, Feliciano and Mar a Teresa, for their absolute trust andsupport. They have been an inspiration to me and an Example of hard would also like to thank my girlfriend, Luc a, for her love and for putting up with mewhile I worked on this Howse is a writer, software developer, and business owner from Halifax, NovaScotia, Canada. Computer games and code are imbibed in his earliest memories, as helearned to read and type by playing text adventures with his older brother, Sam, andwatching him write graphics demos in s other books include OpenCV for Secret Agents, OpenCV Blueprints, AndroidApplication Programming with OpenCV 3, and Learning OpenCV 3 Computer Vision withPython. He works with his cats to make computer vision systems for humans, felines, andother users.

7 Visit to read about some of his latest projects done atNummist Media Corporation dedicate my work to Sam, Jan, Bob, Bunny, and my cats, who have been my lifelongguides and congratulate my coauthor for producing an excellent compendium of classic examples ofgame development. I am grateful for the opportunity to add my chapter on checkers(draughts) and computer am also indebted to the many editors and technical reviewers who have contributed toplanning, polishing, and marketing this book. I have come to expect an outstanding teamwhen working with Packt Publishing, and once again, all of them have guided me withtheir experience and saved me from sundry errors and omissions. Please meet thetechnical reviewers by reading their biographies , I want to thank my readers and everybody in the open source community. We areunited in our efforts to build and share all kinds of projects and knowledge, paving theway for books such as this to the ReviewersBenjamin Johnson is an experienced Python Programmer with a passion for gameprogramming, software development, and web design.

8 He is currently studying computerscience at The University of Texas at Austin and plans to specialize in softwareengineering. His most popular Python projects include an adventure game engine and aparticle simulator, both developed using Pygame. You can check out Benjamin s latestPygame projects and articles on his website at would like to thank Packt Publishing for giving me the opportunity to read and reviewthis excellent book!Dennis O Brien is the director of data science at Game Show Network games . He studiedphysics at the University of Chicago as an undergraduate and completed his graduatestudies in computer science from the University of Illinois, Chicago. He was the principalsoftware engineer at Electronic Arts, a senior software engineer at Leapfrog Enterprises,and a lead game developer at Jellyvision files, eBooks, discount offers, andmoreFor support files and downloads related to your book, please visit you know that Packt offers eBook versions of every book published, with PDF andePub files available?

9 You can upgrade to the eBook version at and asa print book customer, you are entitled to a discount on the eBook copy. Get in touch withus at for more , you can also read a collection of free technical articles, sign upfor a range of free newsletters and receive exclusive discounts and offers on Packt booksand you need instant solutions to your IT questions? PacktLib is Packt s online digitalbook library. Here, you can search, access, and read Packt s entire library of subscribe?Fully searchable across every book published by PacktCopy and paste, print, and bookmark contentOn demand and accessible via a web browserFree access for Packt account holdersIf you have an account with Packt at , you can use this to accessPacktLib today and view 9 entirely free books. Simply use your login credentials forimmediate to Python Game Programming By Example . As hobbyist programmers orprofessional developers, we may build a wide variety of applications, from large enterprisesystems to web applications made with state-of-the-art frameworks.

10 However, gamedevelopment has always been an appealing topic, maybe simply for creating casual gamesand not just for high-budget AAA you want to explore the different ways of developing games in Python , a language withclear and simple syntax, then this is the book for you. In each chapter, we will build a newgame from scratch, using several popular libraries and utilities. By the end of this book,you will be able to quickly create your own 2D and 3D games , and have a handful ofPython libraries in your tool belt to choose this book coversChapter 1, Hello, Pong!, details the required software, its installation, and the basic syntaxof Python : data structures, control flow statements, object orientation, and so on. It alsoincludes the first game of the book, the classic Hello, world 2, Cocos Invaders, introduces the cocos2d game engine and explains how to builda game similar to Space Invaders to put this knowledge into practice.