// helper function for create method that does the work
binary_tree* binary_tree_create_f_help(FILE* stream){
// line to read the text with
char *line = NULL;
char hold[MAX_STRING_SIZE];
line = fgets(hold, MAX_STRING_SIZE, stream);
// if the text is not null
if (line != NULL){
// get the first character
char first = *line;
// get the rest of the line (trim out Q or A)
char *rest = (line + 1);
// if it's a question
if (first == 'Q'){
binary_tree *left = binary_tree_create_f_help(stream);
binary_tree *right = binary_tree_create_f_help(stream);
binary_tree *root = binary_tree_create_stt(rest, left, right);
return root;
} else if (first == 'A'){
binary_tree *leaf = binary_tree_create_s(rest);
return leaf;
} else {
return NULL;
}
} else
return NULL;
}
binary_tree* playRound(FILE* stream, binary_tree* tree){
char answer; //the answer to the question shown
binary_tree* root = tree;
char* value;
char testing[MAX_STRING_SIZE];
while(!binary_tree_is_leaf(tree)){
strcpy(testing, binary_tree_get_string(tree, value));
if(testing[strlen(testing)-1] == '\n'){
testing[strlen(testing)-1] = '\0';
}
printf("%s ", testing);
rewind(stdin);
scanf(" %c", &answer);
if(answer == 'y'){
parent = tree;
tree = binary_tree_get_right(tree);
}
else{
parent = tree;
tree = binary_tree_get_left(tree);
}
}
if(answer != 'y' && answer != 'n'){
answer = 's';
}
char* val;
char finalAnswer; //the answer to the question prompted
char testing2[MAX_STRING_SIZE];
strcpy(testing2, binary_tree_get_string(tree, val));
if(testing2[strlen(testing2)-1] == '\n'){
testing2[strlen(testing2)-1] = '\0';
}
printf("Were you thinking of a %s ? ", testing2);
scanf(" %c", &finalAnswer);
if(finalAnswer == 'y'){
printf("Great\n");
return root;
}
else{
printf("Doh! What was the animal? ");
char animal[MAX_STRING_SIZE];
char question[MAX_STRING_SIZE];
char correctAnswer[MAX_STRING_SIZE];
char* getValue;
char testing3[MAX_STRING_SIZE];
strcpy(testing3, binary_tree_get_string(tree, getValue));
if(testing3[strlen(testing3)-1] == '\n'){
testing3[strlen(testing3)-1] = '\0';
}
scanf("%s", animal); //scans stdin for your animal
printf("What question separates %s from %s? ", animal, testing3);
rewind(stdin);
fgets(question, MAX_STRING_SIZE, stdin); //scans stdin for your question that must end in a '?' char
printf("What is the correct answer for this animal? ");
rewind(stdin);
scanf("%s", correctAnswer); //the correctAnswer to your question
if(answer == 's'){
parent= NULL;
}
if(correctAnswer == 'y'){
newTree = binary_tree_create_stt(question, binary_tree_create_s(animal), tree);
}
else{
newTree = binary_tree_create_stt(question, tree, binary_tree_create_s(animal));
}
if(answer == 's'){
return newTree;
}
else{
if(answer == 'y'){
binary_tree_set_right(parent, newTree);
}
else{
binary_tree_set_left(parent, newTree);
}
return root;
}
}
}
