Book Image

Panda3D 1.6 Game Engine Beginner's Guide

Book Image

Panda3D 1.6 Game Engine Beginner's Guide

Overview of this book

Panda3D is a game engine, a framework for 3D rendering and game development for Python and C++ programs. It includes graphics, audio, I/O, collision detection, and other abilities relevant to the creation of 3D games. Also, Panda3D is Open Source and free for any purpose, including commercial ventures. This book will enable you to create finished, marketable computer games using Panda3D and other entirely open-source tools and then sell those games without paying a cent for licensing. Panda3D 1.6 Game Engine Beginner's Guide follows a logical progression from a zero start through the game development process all the way to a finished, packaged installer. Packed with examples and detailed tutorials in every section, it teaches the reader through first-hand experience. These tutorials are followed by explanations that describe what happened in the tutorial and why. You will start by setting up a workspace, and then move on to the basics of starting up Panda3D. From there, you will begin adding objects like a level and a character to the world inside Panda3D. Then the book will teach you to put the game's player in control by adding change over time and response to user input. Then you will learn how to make it possible for objects in the world to interact with each other by using collision detection and beautify your game with Panda3D's built-in filters, shaders, and texturing. Finally, you will add an interface, audio, and package it all up for the customer.
Table of Contents (22 chapters)
Panda3D 1.6 Game Engine
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – creating the main cannon


Fortunately, we'll be able to do a good bit of copying and pasting code we've already written to make the main cannon. Let's get started.

  1. Open ExplosionClasses_01.py. The first thing we'll do is to make a new kind of explosion for the main cannon.

  2. Add a new import to the top of the file:

    from pandac.PandaModules import *
  3. Copy the entire Pop class and paste it into the bottom of the file. Change the class name to Boom, and use the find and replace feature of Notepad++ to change self.pop into self.boom everywhere it appears in the Boom class.

  4. Change the definition of the __init__ method for the Boom class to look like this:

      def __init__(self, pos, scale, damage):
  5. Add the following line to the __init__ method of the Boom class, immediately after self.boom.setPos(pos):

        self.boom.setScale(scale)
  6. At the bottom of the Boom class's __init__ method, add the following block of code:

        self.boomCN = CollisionNode("BoomCN")
        self.boomCS = CollisionSphere(0...