Game Physics Engine Development: How to Build a Robust by Ian Millington

By Ian Millington

Publish yr note: First released in 2007

Physics is basically very important to online game programmers who want to know tips to upload actual realism to their video games. they should take into consideration the legislation of physics whilst making a simulation or online game engine, fairly in 3D special effects, for the aim of creating the consequences look extra actual to the observer or player.The video game engine must realize the actual homes of items that artists create, and mix them with practical movement. The physics ENGINE is a working laptop or computer application that you just paintings into your video game that simulates Newtonian physics and expect results less than assorted stipulations. In games, the physics engine makes use of real-time physics to enhance realism.

This is the one ebook in its type to take readers during the technique of development an entire game-ready physics engine from scratch. The Cyclone video game engine featured within the ebook was once written particularly for this e-book and has been used in iPhone software improvement and Adobe Flash tasks. there's a bargain of master-class point details on hand, yet virtually not anything in any structure that teaches the fundamentals in a realistic manner.

The second edition contains new and/or revised fabric on collision detection, second physics, informal online game physics for Flash video games, extra references, a word list, and end-of-chapter workouts. The significant other site will contain the whole resource code of the Cyclone physics engine, besides instance functions that exhibit the physics method in operation.

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Extra info for Game Physics Engine Development: How to Build a Robust Commercial-Grade Physics Engine for your Game (2nd Edition)

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The next chapter deals with displaying pop-up windows and dialog boxes. There are some pre-defined KDE and Qt dialog boxes, but you can also create your own. qc 11/20/00 15:41 Page 27 3 C H A P T E R Laying Out Widgets in a Window T his chapter is all about controlling the size and position of a collection of widgets inside a window. Before an application can be programmed to respond to a button or read some text typed by the user, it is necessary to present the button and the text entry widgets in some sort of reasonable arrangement.

No maximum is set, so each row and column can be increased to any size, and if you resize this window, you will notice the buttons being resized also. There is more about this stretching in the next example. The call to resize() on line 31 is a request to make the entire widget shrink to 10 by 10 pixels. The widget is unable to comply with the request because of the minimum size of the rows and columns. Whenever a widget is instructed to resize itself and the new height or width is outside the bounds of its maximum or minimum, the requested value is ignored and the closest valid value is used — that is, either the maximum or the minimum.

The parent window — in this case, the QApplication window — assumes the task of displaying the label, but will only do so if there has been a call to the label’s show() method. Another function, named hide(), can be used to cause a widget to disappear from the display. The call to setMainWidget() on line 11 inserts the label into the main window. To keep this example simple, the QLabel object is used, but normally the widget will be some sort of compound widget that contains the collection of widgets, text, and other elements of the main window of an application.

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