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Introduction to Game programming with PyGame Part 1
This document provides an introduction to PyGame, an open source Python library for developing 2D video games. It begins with an overview of game components like graphics, input, game logic, and sound. It then covers basic PyGame concepts like drawing primitives, surfaces, animation, and collision detection. Finally, it discusses programming with Python and PyGame, including a basic game loop structure, and provides examples of code and demos. The goal is to introduce developers to the capabilities and building blocks of PyGame for creating 2D games.
In this document
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Introduction to PyGame and the agenda covering 2D games, basics of Python, PyGame, and examples.
Discusses the multidisciplinary process of game development, including graphics, input control, game logic, AI, physics, etc.
Introduction to drawing primitives in game development, including pixels, squares, rectangles, and ellipses.
Explains the basics of animation in games through drawing objects, changing their position, and repeating the process.
Discusses how drawing primitives use algorithms and introduces surfaces/bitmaps to optimize drawing in games.Explains how monitors' refresh rates are managed with buffer surfaces for smooth animation synchronization.Introduces 2D collision detection, including 2D bounds checks and pixel-perfect collision.
Discusses the need for frameworks, engines, and libraries to simplify game development and code management.
Lists various programming options for game development including PyGame, DirectX, and SDL.
Describes a basic game loop structure along with key operations: input handling, collision detection, drawing.
Details on Python's features, benefits, data types, control structures, and its role in game programming.Highlights PyGame's reliance on SDL, its capabilities, resources for documentation, and ends with a demo section.
Introduction to Game programming with PyGame Part 1
- 1. Introduction to PyGame Abhishek Mishra hello@ideamonk.com
- 2. Agenda • Games -2d games • Basics • Python • PyGame • Examples
- 3. Whats inside aGame? • Multidisciplinary Process • Graphics • Input Control • Game Logic / AI • Sound effects / Music • Communication • Physics, etc • Frameworks ^ Libraries ^^
- 4. Basics - Drawing •Drawing primitives • Pixels, Square, Rect, Ellipse, etc • Provided by development env
- 5. Basics - Animation •Draw things • Change their positon • Draw them again • Repeat
- 6. Basics - Animation •Draw things • Change their positon • Draw them again • Repeat
- 7. Basics - Animation •Draw things • Change their positon • Draw them again • Repeat
- 8. Basics - Animation •Draw things • Change their positon • Draw them again • Repeat
- 9. Basics - Animation •Draw things • Change their positon • Draw them again • Repeat
- 10. Basics - Surfaces •Drawing primitives use algorithms • Slow for repetitive work
- 11. Basics - Surfaces •Drawing primitives use algorithms • Slow for repetitive work
- 12. Basics - Surfaces •How do we save time?
- 13. Basics - Surfaces •How do we save time?
- 14. Basics - Surfaces •How do we save time? A Surface / Bitmap
- 15. Basics - Surfaces •How do we save time? RAM
- 16. Basics - Surfaces •How do we save time? RAM
- 17. Basics - Surfaces •Bitmaps • Rectangular • CPU Inexpensive • Can be layered
- 18. Basics - Surfaces • Bitmaps • Rectangular • CPU Inexpensive • Can be layered Sky layer Trees Enemies
- 19. Basics - AnimationAgain! • Monitors have refresh rate • Can’t draw so many surfaces on live screen • How do we make it smooth? • How do we sync?
- 20. Basics - AnimationAgain! • Draw on a buffer surface • Wait for vertical sync • Transfer the whole buffer to screen
- 21. Basics - AnimationAgain! • Draw on a buffer surface • Wait for vertical sync • Transfer the whole buffer to screen
- 22. Basics - AnimationAgain! • Draw on a buffer surface • Wait for vertical sync • Transfer the whole buffer to screen
- 23. Basics - AnimationAgain! • Draw on a buffer surface • Wait for vertical sync • Transfer the whole buffer to screen
- 24.
- 25. Collision Detection 2D Bound checks
- 26. Collision Detection Pixel Perfect http://wiki.allegro.cc/index.php?title=Pixel_Perfect_Collision
- 28. Ah! So manythings to do?
- 29. Ah! So manythings to do? Enter Frameworks / Engines/ Libraries & other angels
- 30. Programming • Lot ofrepetitive tasks • Lot of things you don’t wish to figure out • Technologies - OpenGL, DirectX, SDL • Interfacing Libraries • Generic set of solutions - frameworks • Complete solutions - Game Engines, toolsets
- 31. Programming • Many optionsto choose from - • DirectQB (old MSDOS days) • Allegro (C/C++, cross platform) • PyGame (Python, SDL) • PyGlet (Python, OpenGL) • XNA (Windows, XBox, dotNET, C#,VB) • DirectX (Windows specific,VC++, C# ...)
- 32. Programming • Many optionsto choose from - • DirectQB (old MSDOS days) • Allegro (C/C++, cross platform) • PyGame (Python, SDL) • PyGlet (Python, OpenGL) • XNA (Windows, XBox, dotNET, C#,VB) • DirectX (Windows specific,VC++, C# ...)
- 33. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 34. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 35. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 36. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 37. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 38. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 39. A Basic GameLoop Start While player is alive take input find collisions draw on buffer put everything on screen
- 40. What now? • Anentertaining idea • A Programming Language • A Game programming framework • Some bells, whistles & decorations
- 41. Python • Dynamic, Interpreted,Interactive • Object Oriented • Easy to write, easy to read • Popular - education, prototyping, quick hacks, research, unlimited • Batteries included • From web to standalones
- 42. Python • Free • Onmany platforms (Unix, Linux, Windows, OS X, Symbian S60, Java, BeOS) • Lacks type declaration • Huge library of modules
- 43. Python • printf (“Hi%s”, name); print “Hi %s” % name • int x = 45; float y = 1.01 x = 45 y = 1.01 • int a[4] = {1,2,3,4} a = [1,2,3,4] a = [1,2,‘abhishek’, 4, 4.5]
- 44. Python Indentation if (name ==‘abc’): print “Yes” else: print “No”
- 45. Python Strings fruit = “Apple” fruit= ‘Apple’ fruit = “““ Apple and ‘apple” ””” fruit = ‘‘‘ foo bar ’’’ message = “Hello %s. Total is %d” % (name, total)
- 46. Python Lists l = [1,2,3,‘foo’, 4.5] print l[3] foo l = [ [1,2,3], ‘a’, ‘b’, ‘c’ ] innerlist = l[0] print innerlist [1,2,3]
- 47. Python Dictionaries Associative key =>value pairs d = { ‘name’ : ‘Ram’, ‘age’:45 } print d[‘name’] print d[‘age’] d[‘salary’] = 45000
- 48. Python Loops for (int x=0;x<10; x+=2) { // do something } for x in range(0,10,2): # do something
- 49. Python Loops L = [1,2,4,5,3,1] fori in L: print i 1 2 4 5 3 1
- 50. Python Functions def factorial( num): if num==1: return 1 else: return num * factorial(num-1) print factorial(4) 24
- 51. Python Comments # single linecomment “““ multi line ”””
- 52.
- 53. • Based onSDL (Simple Directmedia Layer) • Works on Windows, OSX, Linux, N900, etc • Big array of modules, does a lot to save time • http://pygame.org • $ sudo easy_install pygame
- 55. http://www.pygame.org/docs/ http://www.pygame.org/docs/ ref/examples.html
- 57. pygame.Color pygame.transform pygame.draw pygame.Rect pygame.Surface pygame.mouse pygame.image pygame.movie pygame.display pygame.camera pygame.time pygame.midi pygame.event pygame.mixer pygame.font ...
- 58. Code / Demotime
- 59.