design pattern singleton code example
Example 1: what is singleton design pattern
Singleton Design Pattern is basically limiting our class so that
whoever is using that class can only create 1 instance from that class.
I create a private constructor which limits access to the instance of the class.
Than I create a getter method where we specify how to create&use the instance.
- I am using JAVA Encapsulation OOP concept.
Example 2: singleton pattern
class Singleton:
__instance = None
def __new__(cls, *args):
if cls.__instance is None:
cls.__instance = object.__new__(cls, *args)
return cls.__instance
Example 3: singelton code
using UnityEngine;
public class SingeltonObject : MonoBehaviour
{
void Awake()
{
SetUpSingelton();
}
private void SetUpSingelton()
{
if (FindObjectsOfType(GetType()).Length > 1)
{
Destroy(gameObject);
}
else
{
DontDestroyOnLoad(gameObject);
}
}
}
Example 4: singleton pattern
class Singleton(object):
__instance = None
def __new__(cls, *args):
if cls.__instance is None:
cls.__instance = object.__new__(cls, *args)
return cls.__instance