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  1. #include <iostream>
  2.  
  3. enum class MemMode
  4. {
  5. 	Own,
  6. 	Channel
  7. };
  8.  
  9. template <class MgrType, void (MgrType::*method)(), MemMode memMode>
  10. class EffectHandler
  11. {
  12. public:
  13.  
  14. 	void	operator()(MgrType* instance, int& parameter, int lastNzParameter, bool compat)
  15. 			{
  16. 				if (memMode == MemMode::Own || !compat)
  17. 				{
  18. 					if (parameter)
  19. 					{
  20. 						parameterMemory = parameter;
  21. 					}
  22. 					parameter = parameterMemory;
  23. 				}
  24. 				else
  25. 				{
  26. 					parameter = lastNzParameter;
  27. 				}
  28. 				(instance->*method)();
  29. 			}
  30.  
  31. private:
  32.  
  33. 	int	parameterMemory = 0;
  34. };
  35.  
  36. class GlobalEffMgr
  37. {
  38. private:
  39.  
  40. 	template <void (GlobalEffMgr::*method)(), MemMode memMode>
  41. 	using GlEffHandler = EffectHandler<GlobalEffMgr, method, memMode>;
  42.  
  43. 	template <void (GlobalEffMgr::*method)(), MemMode memMode>
  44. 	void Invoke(GlEffHandler<method, memMode>& handler)
  45. 		 {
  46. 			handler(this, parameter, lastNzParameter, compat);
  47. 		 }
  48.  
  49. 	int lastNzParameter = 0;
  50. 	int parameter = 0;
  51. 	bool compat = false;
  52.  
  53. 	void Func1() { std::cout << "Func1: " << parameter << std::endl; }
  54. 	void Func2() { std::cout << "Func2: " << parameter << std::endl; }
  55.  
  56. 	GlEffHandler<&GlobalEffMgr::Func1, MemMode::Own>	func1Handler;
  57. 	GlEffHandler<&GlobalEffMgr::Func2, MemMode::Channel> func2Handler;
  58.  
  59. public:	
  60.  
  61. 	void Dispatch(int i, int j)
  62. 		 {
  63. 		 	parameter = i;
  64. 		 	if (i)
  65. 		 	{
  66. 		 		lastNzParameter = i;
  67. 		 	}
  68.  
  69. 		 	switch (j)
  70. 		 	{
  71. 		 		case 1: Invoke(func1Handler); break;
  72. 		 		case 2: Invoke(func2Handler); break;
  73. 		 		default: break;
  74. 		 	}
  75. 		 }
  76. };
  77.  
  78. int main() 
  79. {
  80. 	GlobalEffMgr mgr;
  81.  
  82. 	mgr.Dispatch(66, 1);
  83. 	mgr.Dispatch(0, 1);
  84. 	mgr.Dispatch(99, 2);
  85. 	mgr.Dispatch(0, 1);
  86. 	mgr.Dispatch(101, 2);
  87. 	mgr.Dispatch(0, 2);
  88. 	mgr.Dispatch(222, 1);
  89. 	mgr.Dispatch(0, 2);
  90. 	mgr.Dispatch(55, 2);
  91. 	mgr.Dispatch(0, 1);
  92. 	return 0;
  93. }
Success #stdin #stdout 0s 16048KB
comments (?)
stdin
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Standard input is empty
stdout
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Func1: 66
Func1: 66
Func2: 99
Func1: 66
Func2: 101
Func2: 101
Func1: 222
Func2: 101
Func2: 55
Func1: 222
https://ideone.com/J8tuo4
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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