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Python Game Programming By Example

Python Game Programming By Example

By : Alejandro Rodas de Paz, Joseph Howse
4.4 (10)
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Python Game Programming By Example

Python Game Programming By Example

4.4 (10)
By: Alejandro Rodas de Paz, Joseph Howse

Overview of this book

With a growing interest in learning to program, game development is an appealing topic for getting started with coding. From geometry to basic Artificial Intelligence algorithms, there are plenty of concepts that can be applied in almost every game. Python is a widely used general-purpose, high-level programming language. It provides constructs intended to enable clear programs on both a small and large scale. It is the third most popular language whose grammatical syntax is not predominantly based on C. Python is also very easy to code and is also highly flexible, which is exactly what is required for game development. The user-friendliness of this language allows beginners to code games without too much effort or training. Python also works with very little code and in most cases uses the “use cases” approach, reserving lengthy explicit coding for outliers and exceptions, making game development an achievable feat. Python Game Programming by Example enables readers to develop cool and popular games in Python without having in-depth programming knowledge of Python. The book includes seven hands-on projects developed with several well-known Python packages, as well as a comprehensive explanation about the theory and design of each game. It will teach readers about the techniques of game design and coding of some popular games like Pong and tower defense. Thereafter, it will allow readers to add levels of complexities to make the games more fun and realistic using 3D. At the end of the book, you will have added several GUI libraries like Chimpunk2D, cocos2d, and Tkinter in your tool belt, as well as a handful of recipes and algorithms for developing games with Python.
Table of Contents (9 chapters)
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8
Index

Configuring cameras


OpenCV provides a class, called cv2.VideoCapture, that represents a stream of images from either a video file or a camera. This class has methods such as read(image) for exposing the stream's next image as a NumPy array. It also has the get(propId) and set(propId, value) methods for accessing properties such as the width and height (in pixels), color format, and frame rate. The valid properties and values may depend on the system's video codecs or camera drivers.

Across cameras, the default property values may differ dramatically. For example, one camera might default to an image size of 640 x 480, while another may default to 1920 x 1080. For greater predictability, we should try to set crucial parameters rather than rely on the defaults. Let's create a module called ResizeUtils containing a utility function to configure the image size.

The ResizeUtils module begins by importing the CVBackwardCompat instance of cv2, which may contain aliases (depending on the OpenCV version...

Visually different images
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Python Game Programming By Example
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