random words
Author
I''m trying to make a simple hangman game, I already made functions that read the length of a string and search for a letter in it, but now I would like to know how I could let the program pick a random word (from a file, or a matrix)
I already figured out that I will have to use a random number that points to a random word, but where do I put those words
I can''t use a string matrix, because a number would only point to a letter of a word, or am I wrong?!?
can someone help me
thanx in advance...
I guess using a char matrix would be easiest.
Horizontal: each variable would hold one letter, or a null to indicate the end of the word.
Vertical: the seperate words are filled in under each other. You should create a random number between 0 and n (number of words). That random number would be the vertical indicator in your matrix.
ASCII:
x12345678
0DOG-----
1AIRPLANE
2TORNADO-
3CATTLE--
4FORMAT--
I hope you can understand this, ''cause I think I suck at explaining things :D
Horizontal: each variable would hold one letter, or a null to indicate the end of the word.
Vertical: the seperate words are filled in under each other. You should create a random number between 0 and n (number of words). That random number would be the vertical indicator in your matrix.
ASCII:
x12345678
0DOG-----
1AIRPLANE
2TORNADO-
3CATTLE--
4FORMAT--
I hope you can understand this, ''cause I think I suck at explaining things :D
Author
do you mean a 2 dimensional array?
like :
char array [5] [10]
{
{0,1,2,3,4,5,6,7,8,9}
{1,''w'',''o'',''r'',''d'',''\0''}
{2,''d'',''o'',''g'',''\0''}
{3,........}
{4,......}
} ;
if so I don''t think it''s easy to use...
like :
char array [5] [10]
{
{0,1,2,3,4,5,6,7,8,9}
{1,''w'',''o'',''r'',''d'',''\0''}
{2,''d'',''o'',''g'',''\0''}
{3,........}
{4,......}
} ;
if so I don''t think it''s easy to use...
Look up the strtok() function. It extracts substrings delimited by a specified set of separators. You could, for example, specify all whitespace (the space character, tabs, newlines, etc) as your separators and use strtok to extract words from any text file.
quote:Original post by da_cobra
do you mean a 2 dimensional array?
like :
char array [5] [10]
{
{0,1,2,3,4,5,6,7,8,9}
{1,''w'',''o'',''r'',''d'',''\0''}
{2,''d'',''o'',''g'',''\0''}
{3,........}
{4,......}
} ;
if so I don''t think it''s easy to use...
You can do it like you wrote, only loose the first row, and the initial number in each row (Ronin_54 only had them to show column- and row-numbers, they were not supposed to be in the strings)
for example:
const int NUMBER_OF_WORDS = 3;const int MAX_WORD_LENGTH = 10;char word_list[NUMBER_OF_WORDS] [MAX_WORD_LENGTH] ={ "tornado", "dog", "cattle" // you get the point}; // then to get a random string from array, do:int word_index = rand() % NUMBER_OF_WORDS;char * word = word_list[word_index]; // now ''word'' is a pointer to a word in the array ''word_list''
Author
I think that last one could work, so now I try that to put it in a function like this :
void newword(char *word) ;
void main()
{
char word[10]="" ;
newword(word) ;
cout << word << endl ;
}
void newword(char *word)
{
int const words=5 ;
int const max=10 ;
int a=0 ;
char list [words] [max] =
{
"word", "car", "house", "dog", "cat"
} ;
int word_index = rand() % words ;
word = list[word_index];
}
but my word stays "" ?!?
what am I doing wrong now?
and no I can't use : *word=list[word_index] ;
because then I get the following error :
error C2440: '=' : cannot convert from 'char [10]' to 'char'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
again thanx in advance
Edited by - da_cobra on October 14, 2001 12:49:57 PM
void newword(char *word) ;
void main()
{
char word[10]="" ;
newword(word) ;
cout << word << endl ;
}
void newword(char *word)
{
int const words=5 ;
int const max=10 ;
int a=0 ;
char list [words] [max] =
{
"word", "car", "house", "dog", "cat"
} ;
int word_index = rand() % words ;
word = list[word_index];
}
but my word stays "" ?!?
what am I doing wrong now?
and no I can't use : *word=list[word_index] ;
because then I get the following error :
error C2440: '=' : cannot convert from 'char [10]' to 'char'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
again thanx in advance
Edited by - da_cobra on October 14, 2001 12:49:57 PM
YOu aren''t storing an entire word in your variable now 
Either figure out how to use the pointer correctly, or read every single character of your word into a seperate array entry (ie. word[10]) till you get a NULL...
Either figure out how to use the pointer correctly, or read every single character of your word into a seperate array entry (ie. word[10]) till you get a NULL...
quote:Original post by da_cobra
void newword(char *word)
{
int const words=5 ;
int const max=10 ;
int a=0 ;
char list [words] [max] =
{
"word", "car", "house", "dog", "cat"
} ;
int word_index = rand() % words ;
word = list[word_index];
}
1.) You create your wordlist every time you need a random word, which is bad design.
2.) Yo declare word to be a constant array of chars, which you don''t want. You want a pointer, so there''s no data copying.
// note that these are global; they are declared outside *any* functionconst int MAX_WORDS = 5;const int MAX_CHARS = 10;// 2D array of chars:char word_list[MAX_WORDS][MAX_CHARS] ={ "word", "car", "house", "dog", "cat"};int main(int argc, char *argv[]){ int word_index = rand() % MAX_WORDS; // note that word is a char *, not char[10] char *word = word_list[word-index]; cout << word << endl;} This topic is closed to new replies.
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