/* ================== addAirport =================
This function adds another element of data into
both the tree and hash table, through the user's
input from keyboard.
Pre pHeader - pointer to HEAD structure
Post
Return true if success
false if fails
*/
bool addAirport (HEAD* pHeader)
{
// Local Declarations
bool result = false;
DATA tempAirport;
DATA* newAirport = NULL;
char tempCode [28];
char tempName [128];
int i;
printf ("Enter airport code: ");
scanf (" %s", tempCode);
if (strlen(tempCode) != 3) {
printf("Your airport code has to have 3 characters\n");
return result;
}
for (i = 0; i<strlen(tempCode); i++) {
tempCode[i] = toupper(tempCode[i]);
}
strcpy(tempAirport.arpCode, tempCode);
newAirport = findHash(pHeader->pHash, &tempAirport);
if (newAirport == NULL)
{
if (!(newAirport = (DATA*) malloc(sizeof(DATA)))) {
printf("Error allocating new airport\n");
exit(100);
}
strcpy(newAirport->arpCode, tempCode);
printf("Enter airport city: ");
scanf(" %[^\n]", tempName);
newAirport->city = (char*) calloc(strlen(tempName) + 1, sizeof(char));
strcpy(newAirport->city, tempName);
printf("Enter airport latitude: ");
while(!(scanf("%f", &newAirport->latitude)))
{
printf("Invalid input, please try entering the latitude again: ");
while(getchar() != '\n');
}
printf("Enter airport longitude: ");
while(!(scanf("%f", &newAirport->longitude)))
{
printf("Invalid input, please try entering the longitude again: ");
while(getchar() != '\n');
}
insertHash(pHeader->pHash, newAirport);
BST_Insert(pHeader->pTree, newAirport);
result = true;
}
else{
printf("This airport already exists\n");
processScreen(newAirport);
}
return result;
} // addAirport
void StellaEnvironment::emulate(Action player_a_action, Action player_b_action, size_t num_steps) {
Event* event = m_osystem->event();
// Handle paddles separately: we have to manually update the paddle positions at each step
if (m_use_paddles) {
// Run emulator forward for 'num_steps'
for (size_t t = 0; t < num_steps; t++) {
// Update paddle position at every step
m_state.applyActionPaddles(event, player_a_action, player_b_action);
m_osystem->console().mediaSource().update();
m_settings->step(m_osystem->console().system());
}
}
else {
// In joystick mode we only need to set the action events once
m_state.setActionJoysticks(event, player_a_action, player_b_action);
for (size_t t = 0; t < num_steps; t++) {
m_osystem->console().mediaSource().update();
m_settings->step(m_osystem->console().system());
}
}
// Parse screen and RAM into their respective data structures
processScreen();
processRAM();
}
/* ================== getOption =================
This function reads in the user's desired chose
of operation. Calls upon other functions to
perform the procedure.
Pre pHeader - pointer to HEAD structure
Post
Return
*/
void getOption (HEAD* pHeader)
{
// Local Declarations
char command;
DATA target;
DATA* airport = NULL;
int i;
// Statements
while ((command = menu()) != 'Q') {
switch (command)
{
case 'A':
if (addAirport(pHeader))
{
while (checkHash(pHeader->pHash) == 1) {
pHeader->pHash = upsizeHash(pHeader->pHash);
}
printf ("\n Succesfully added data.\n\n");
}
break;
case 'D':
printf("Enter the airport code: ");
scanf(" %s", target.arpCode);
if (deleteHash (pHeader, target))
{
while (checkHash(pHeader->pHash) == -1) {
pHeader->pHash = downsizeHash(pHeader->pHash);
}
printf ("\n Succesfully deleted data.\n\n");
}
break;
case 'F':
printf("Enter the airport code: ");
scanf(" %s", target.arpCode);
// fix sensitive input cases
for (i = 0; i < strlen(target.arpCode); i++) {
target.arpCode[i] = toupper(target.arpCode[i]);
}
airport = findHash(pHeader->pHash, &target);
if (airport != NULL) {
processScreen(airport);
}
else printf("No airport exists\n");
break;
case 'L':
printHash(pHeader->pHash);
break;
case 'K':
BST_Traverse(pHeader->pTree, processScreen);
break;
case 'P':
printTree(pHeader->pTree->root, 0);
printf("\n");
break;
case 'W':
outputFile (pHeader->pHash);
break;
case 'E':
efficiency(pHeader->pHash);
break;
case 'H':
pHeader->pHash = hashDemo(pHeader->pHash);
break;
default:
printf("Invalid choice. Choose again\n");
break;
}
}
return;
} // getOption
