C++ Project for beginners | Green house management system source code
Introduction:
This program is written in C++ that allows to manage a greenhouse according to authorities given to a particular person. Each function in this program has a specific function. In this program concept of arrays,functions and other basic concepts have been used.
#include <iostream>
#include <string>
using namespace std;
const int maxplants = 20;
//list of plants
void list(string plants[],int & nplants) {
for (int i = 0; i < nplants; i++) {
cout << "Plant " << i + 1 << ": " << plants[i] << endl;
}
}
// Adding plants
void addplants(string plants[], int& nplants) {
string choice;
do {
if (nplants >= maxplants) {
cout << "You can't add more plants." << endl;
break;
}
string plant;
cout << "Enter the name of a new plant: ";
cin >> plant;
plants[nplants] = plant;
nplants++;
cout << "Want to add more? (yes/no): ";
cin >> choice;
} while (choice == "yes");
for (int i = 0; i < nplants; i++) {
cout << "Plant " << i + 1 << ": " << plants[i] << endl;
}
}
// Replacing plant
void replacePlant(string plants[], int n) {
string planttoreplace;
cout << "Enter the plant to be replaced: ";
cin >> planttoreplace;
for (int i = 0; i < n; i++) {
if (plants[i] == planttoreplace) {
string newplant;
cout << "Enter the new name of the plant: ";
cin >> newplant;
plants[i] = newplant;
break;
}
}
for (int i = 0; i < n; i++) {
cout << i + 1 << ": " << plants[i] << endl;
}
}
// Removing plant
void removeplant(string plants[], int& n) {
string planttoremove;
cout << "Enter plant name to be removed: ";
cin >> planttoremove;
int i;
for (i = 0; i < n; i++) {
if (plants[i] == planttoremove) {
for (int j = i; j < n - 1; j++) {
plants[j] = plants[j + 1];
}
n--;
break;
}
}
if (i == n) {
cout << "Plant not found." << endl;
}
for (int i = 0; i < n; i++) {
cout << i + 1 << ": " << plants[i] << endl;
}
}
// Adding plants by user
void addnewplants(string plants[], int& nplants) {
string choice;
do {
if (nplants >= 5) {
cout << "You can't add more plants." << endl;
break;
}
string plant;
cout << "Enter the name of a new plant: ";
cin >> plant;
plants[nplants] = plant;
nplants++;
cout << "Want to add more? (yes/no): ";
cin >> choice;
} while (choice == "yes");
for (int i = 0; i < nplants; i++) {
cout << "Plant " << i + 1 << ": " << plants[i] << endl;
}
}
// Check temperature
void checktemp() {
int temp = 70; // in Fahrenheit
int c_temp;
cout << "Enter the current value of temperature: ";
cin >> c_temp;
if (c_temp > temp) {
cout << "Turning on AC" << endl;
while (c_temp > temp) {
c_temp--;
}
cout << "loading................................." << endl;
cout << "Turned off AC" << endl;
} else if (c_temp < temp) {
cout << "Turning on heater" << endl;
while (c_temp < temp) {
c_temp++;
}
cout << "loading................................." << endl;
cout << "Turned off heater as it reached desired value" << endl;
} else {
cout << "Temperature is according to the desired condition" << endl;
}
}
// Check amount of carbon dioxide
void checkgas() {
int carbon = 1500;
int c;
cout << "Enter the current value of carbon dioxide: ";
cin >> c;
if (c < carbon) {
cout << "Provide carbon dioxide" << endl;
while (c < carbon) {
c++;
}
cout << "loading................................." << endl;
cout << "Reached the desired amount" << endl;
}
}
// Display desired values
void values() {
cout << "Temperature: 70F" << endl;
cout << "Humidity: 50" << endl;
cout << "Carbon dioxide: 1500 ppm" << endl;
}
//humidity
void humidity() {
int h = 50;
int c_h;
cout << "Enter current humidity: ";
cin >> c_h;
if (c_h > h) {
cout << "Turn on heater" << endl;
while (c_h > h) {
c_h--;
}
cout << "loading................................." << endl;
cout << "Turned off heater humidity reached desired value" << endl;
} else if (c_h < h) {
cout << "Turn on water pump" << endl;
while (c_h < h) {
c_h++;
}
cout << "loading................................." << endl;
cout << "Turned off water pump as it reached desired value" << endl;
} else {
cout << "Desired humidity" << endl;
}
}
int main()
{
string p[maxplants] = {"tomato", "cherry", "lemon"};
string person, password;
int nplants = 3;
authority:
do{
cout << "****************************" << endl;
cout << " WELCOME TO GREEN HOUSE " << endl;
cout << "*************************""**" << endl;
cout << "Are you user or admin?" << endl;
cin >> person;
cin.ignore();
if (person == "admin") {
cout << "Enter password: ";
getline(cin, password);
if (password == "blog by hannan") {
while (1) {
cout << "Select 1 for list of plants" << endl;
cout << "Select 2 for adding plants" << endl;
cout << "Select 3 for replacing plant" << endl;
cout << "Select 4 for removing plant" << endl;
cout << "Select 5 for exit" << endl;
cout << " " << endl;
int s;
cout << "Enter your selection: ";
cin >> s;
switch (s) {
case 1:
list(p, nplants);
break;
case 2:
addplants(p, nplants);
break;
case 3:
replacePlant(p, nplants);
break;
case 4:
removeplant(p, nplants);
break;
case 5:
goto authority;
break;
default:
cout << "Not available" << endl;
break;
}
}
}
} else if (person == "user") {
cout << "Enter password: ";
getline(cin, password);
if (password == "blog") {
while (1) {
cout << "Select 1 for list of plants" << endl;
cout << "Select 2 for adding plants" << endl;
cout << "Select 3 for desired values" << endl;
cout << "Select 4 to manage temperature" << endl;
cout << "Select 5 to provide carbon dioxide if necessary" << endl;
cout << "Select 6 to manage humidity" << endl;
cout << "Select 7 to exit" << endl;
cout << " " << endl;
int s;
cout << "Enter your selection: ";
cin >> s;
switch (s) {
case 1:
list(p, nplants);
break;
case 2:
addnewplants(p, nplants);
break;
case 3:
values();
break;
case 4:
checktemp();
break;
case 5:
checkgas();
break;
case 6:
humidity();
break;
case 7:
goto authority;
break;
default:
cout << "Not available" << endl;
break;
}
}
}
} else {
cout << "You can't access this system" << endl;
}
} while(true);
return 0;
}
Main Features:
1 list of plants:
2. Adding Plants:
Admin has given authority to add plants but not more than 20 because green house supports only 20 plants. On the other hand user can add 6 plants.
3. Replacing Plant:
Admin has authority to replace a particular plant in green house with another plant.
4. Removing Plant:
Admin has the only authority to remove plants he wants.
5. Desired Values:
User can view the desired values of temperature, humidity and carbon dioxide because he has to manage all the system.
6. Manage Temperature:
User can manage temperature by viewing the temperature from sensor and turn on AC and heater until it reached to desired value.
7. Provide Carbon Dioxide:
User can add carbon dioxide for plants to grow.
8. Manage Humidity:
Users can control the humidity level by turning on heater and water pump.
Conclusion:
This program controls all the environmental aspects for plants and decides which plants should be introduce,replace and remove.
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