Hi Shashwat, On 09/08/2017, at 7:27 AM, Shashwat Mishra wrote:
> I am actually not sure how one can build games that use mouse to interact > with it on C++? First, continue this discussion on KDE games development <kde-games-de...@kde.org>. Re the use of the mouse, first you need to get familiar with the Qt library classes and KDE Frameworks library classes used in many KDE apps including KDE Games. There are tutorials on this. Qt also has example code. And you can read the source code of some of the simpler games. Games also use the KDE Games library, especially for games-appropriate actions and icons (menus, buttons and keystrokes). For example, games have a Game sub-menu (provided by class KStandardGameAction from the KDE Games library) instead of the standard File sub-menu. The source code of individual games (start with a simple one) will show you how to program mouse usage. Often this involves only the QAction or derived KStandardGameAction classes. QAction objects can be triggered by by various events, such as clicking on a menu item or toolbar button or hitting a particular keystroke. This signal can be connected to any code you like, using Qt's "signals and slots" mechanism. This approach will cover quite a lot of what you need in a simple game. If you wish to interact with the graphics part of a game, several Qt classes implement protected handlers for mouse events which you can re-implement in your own code: see QWidget, QGraphicsView and QGraphicsScene (in that order of sophistication). Look for methods with "mouse" in their names. Also look for examples of re-implementations of these methods in KDE Games code. Again, start with simple games. Hope this helps, Ian W.
