bool LocationModelManager::onAgentLinkedToModel(Agent *agent, ModelId mid)
{
LocationModel *model = at(mid);
if(nullptr == model)
return false;
model->attachAgent(agent->id());
moveLocation(mid, agent->position());
return true;
}
int getChoice(){
system("cls");
moveLocation(0,0);
printf("1. Add Record");
moveLocation(0,2);
printf("2. List Records");
moveLocation(0,4);
printf("3. Modify Records");
moveLocation(0,6);
printf("4. Delete Records");
moveLocation(0,8);
printf("5. Exit");
moveLocation(0,10);
printf("Your Choice: ");
fflush(stdin);
return getche();
}
int main(){
FILE *fp, *ft;
char another, choice;
/** structure to employee */
struct emp{
char name[50];
int age;
float salary;
} e;
char empname[50];
long int recsize;
/**
* Opening file if exits or creating new file
*/
fp = fopen(FILE_NAME,"rb+");
if(fp == NULL)
{
fp = fopen(FILE_NAME,"wb+");
if(fp == NULL)
{
printf("Cannot open the file");
exit(1);
}
}
recsize = sizeof(e);
while(1)
{
choice = getChoice();
switch(choice)
{
case '1': // Add Record
system("cls");
fseek(fp,0,SEEK_END);
another = 'y';
while(another == 'y')
{
printf("\nEnter name: ");
scanf("%s",e.name);
printf("\nEnter age: ");
scanf("%d", &e.age);
printf("\nEnter basic salary: ");
scanf("%f", &e.salary);
fwrite(&e,recsize,1,fp);
printf("\nAdd another record(y/n) ");
fflush(stdin);
another = getche();
}
break;
case '2': // List Record
system("cls");
rewind(fp);
while(fread(&e,recsize,1,fp)==1)
{
printf("\n%s %d %.2f",e.name,e.age,e.salary);
}
getch();
break;
case '3': // Modify Record
system("cls");
another = 'y';
while(another == 'y')
{
printf("Enter the employee name to modify: ");
scanf("%s", empname);
rewind(fp);
while(fread(&e,recsize,1,fp)==1)
{
if(strcmp(e.name,empname) == 0)
{
printf("\nEnter new name,age and basic salary: ");
scanf("%s%d%f",e.name,&e.age,&e.salary);
fseek(fp,-recsize,SEEK_CUR);
fwrite(&e,recsize,1,fp);
break;
}
}
printf("\nModify another record(y/n)");
fflush(stdin);
another = getche();
}
break;
case '4': // Delete Record
system("cls");
another = 'y';
while(another == 'y')
{
printf("\nEnter name of employee to delete: ");
scanf("%s",empname);
ft = fopen(TEMP_FILE_NAME,"wb");
rewind(fp);
while(fread(&e,recsize,1,fp) == 1)
{
if(strcmp(e.name,empname) != 0)
{
fwrite(&e,recsize,1,ft);
}
}
fclose(fp);
fclose(ft);
remove(FILE_NAME);
rename(TEMP_FILE_NAME,FILE_NAME);
fp = fopen(FILE_NAME, "rb+");
printf("Delete another record(y/n)");
fflush(stdin);
another = getche();
}
break;
case '5': // Exit Program
system("cls");
moveLocation(0,5);
fclose(fp);
printf("Bye././. Have a nice day");
moveLocation(0,7);
exit(0);
}
}
return 0;
}