Softwareentwicklung in C++ - ASC

47 SimpleOutputHandling & output handler ;
48
10.2 Das DDD 299
49 /∗ Whenever a card i s s e l e c t e d f o r turning i t i s r e g i s t e r e d
50 ∗ in the current cardpair . This v a r i a b l e can be asked i f i t
51 ∗ already holds both cards or only one and then the game
52 ∗ c o n t r o l can r e a c t accordingly .
53 ∗/
54 MemoryCardpair c u r r e n t c a r d p a i r ;
55
56 /∗ This i s the i n t e r n a l event handling s t a t e and the v a r i a b l e
57 ∗ can take one of the two values o f the constants above . I t
58 ∗ i s always stored here , what the c o n t r o l i s waiting f o r in
59 ∗ r e s p e c t to the coords . Either i t waits f o r both coords
60 ∗ o f a card or the row already a r r i v e d and i t waits only f o r
61 ∗ the column of a s e l e c t e d card .
62 ∗/
63 uint8 c o o r d w a i t s t a t u s ;
64
65 /∗ I f the row was already passed as an event i t i s in the
66 ∗ meantime stored in t h i s v a r i a b l e u n t i l the column a r r i v e s .
67 ∗/
68 uint32 stored row num ;
69
70 public :
71
72 /∗ Standard Constructor
73 ∗ The gameboard that t h i s c o n t r o l i n stance i s r e s p o n s i b l e f o r
74 ∗ and the output handler f o r d i s p l a y i n g o f the gameboard
75 ∗ are passed to i t and stored in the appropriate i n t e r n a l
76 ∗ v a r i a b l e s . All other v a r i a b l e s have to be i n i t i a l i z e d to
77 ∗ t h e i r according 0 values
78 ∗ @param gameboard The gameboard to be c o n t r o l l e d . I t comes
79 ∗ without any cards on i t . A c a l l to the method
80 ∗ putCardsOnGameboard then f i l l s i t with appropriate
81 ∗ c a r d p a i r s .
82 ∗ @param output handler The output handler that i s r e s p o n s i b l e
83 ∗ f o r d i s p l a y i n g the gameboard .
84 ∗/
85 MemoryGameControl(MemoryGameboard &gameboard ,
86 SimpleOutputHandling &output handler ) :
87 gameboard ( gameboard ) ,
88 output handler ( output handler ) ,
89 c o o r d w a i t s t a t u s (WAITING FOR ROW AND COL) ,
90 stored row num ( 0) { }
91
92
93 /∗ Destructor
94 ∗ Just to make sure that a v i r t u a l d e s t r u c t o r e x i s t s
95 ∗/
96 virtual ˜ MemoryGameControl ( ) { }
97
98 /∗ This method i s c a l l e d to t r i g g e r f i l l i n g o f the gameboard . I t
99 ∗ u t i l i z e s an instance of MemoryCardSymbolGenerator and then
100 ∗ d i s t r i b u t e s a pair of cards f o r each symbol randomly on the
101 ∗ board .
102 ∗/
103 virtual void putCardsOnGameboard ( ) ;
104
105 /∗ This i s the c a l l b a c k f o r word events that are a r e s u l t o f the
106 ∗ u sers ’ input . Here a l l the a c t i o n s are t r i g g e r e d according to
107 ∗ the game ’ s l o g i c .
108 ∗ @param event An event coming from the input handler . Only
109 ∗ events of c l a s s WordEvent a r r i v e here .
110 ∗ @param dispatcher The Input handler that c a l l e d t h i s
111 ∗ method to dispatch the event .
112 ∗/