code-separation | 易学教程

3 values (numbers) in 1 input separation. Python 3

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问题 I'm working on a code right now that a part of it requires to ask the user for 3 different numbers in one line ( could be any number of digits in each number). Say I ask the user for the input and he enters : "31 722 9191". A space is required between the numbers. How would you go about separating these numbers and assigning a variable to each one of them. So for example 31 would be "A", 722 would be "B" and so on... What I've got so far: user_input = input(" Please enter the numbers: ")

Separation of logic and GUI in Android app. Service has knowledge of app and shouldn't

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问题 I'm a relative novice to Android programming (I mostly do C# on Windows). I inherited some code that consists of a service and app. I'd like to reuse the service and some of the app in another app. I'm putting that in a library. All has gone well except for one problem. The Service has some code that puts the main activity up on the screen. It calls out this activity by name. Clearly, I can't have that in common code. The service code looks something like this: final int NOTIFY_1 = 0x1001;

Multiple Singleton Instances

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问题 I am writing a library of utility classes, many of which are singletons. I have implemented them as such using inheritance: template <class T> class Singleton { public: T& getInstance() { if(m_instance == 0) { m_instance = new T; } return m_instance; } private: static T* m_instance; }; class SomeClass : public Singleton<SomeClass> { public: SomeClass() {} virtual ~SomeClass() {} void doSomething() {;} }; Obviously this is a simple example, not an actual class. Anyways, I am finding that using

Implementation of achievement systems in modern, complex games

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问题 Many games that are created these days come with their own achievement system that rewards players/users for accomplishing certain tasks. The badges system here on stackoverflow is exactly the same. There are some problems though for which I couldn't figure out good solutions. Achievement systems have to watch out for certain events all the time, think of a game that offers 20 to 30 achievements for e.g.: combat. The server would have to check for these events (e.g.: the player avoided x

Implementation of achievement systems in modern, complex games

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Many games that are created these days come with their own achievement system that rewards players/users for accomplishing certain tasks. The badges system here on stackoverflow is exactly the same. There are some problems though for which I couldn't figure out good solutions. Achievement systems have to watch out for certain events all the time, think of a game that offers 20 to 30 achievements for e.g.: combat. The server would have to check for these events (e.g.: the player avoided x attacks of the opponent in this battle or the player walked x miles) all time . How can a server handle

C++ Header Files, Code Separation

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I am new to C++ and I had a few general questions about code separation. I have currently built a small application, all in one file. What I want to do now is convert this into separate files such that they contain similar code or whatnot. My real question right now is, how do I know how to separate things? What is the invisible margin that code should be separated at? Also, what's the point of header files? Is it to forward declare methods and classes so I can use them in my code before they are included by the linker during compilation? Any insight into methods or best practises would be

C++ Header Files, Code Separation

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问题 I am new to C++ and I had a few general questions about code separation. I have currently built a small application, all in one file. What I want to do now is convert this into separate files such that they contain similar code or whatnot. My real question right now is, how do I know how to separate things? What is the invisible margin that code should be separated at? Also, what\'s the point of header files? Is it to forward declare methods and classes so I can use them in my code before

C++ code in header files

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问题 My personal style with C++ has always to put class declarations in an include file, and definitions in a .cpp file, very much like stipulated in Loki\'s answer to C++ Header Files, Code Separation. Admittedly, part of the reason I like this style probably has to do with all the years I spent coding Modula-2 and Ada, both of which have a similar scheme with specification files and body files. I have a coworker, much more knowledgeable in C++ than I, who is insisting that all C++ declarations