Script Communication in Unity:
Having communication between scripts is essential if you want to access functions or components between game objects. One must first obtain the root access of the component with the GetComponent<> method.
Using the hierarchy, one can go down the branches to obtain the component needed. For example, let’s imagine two objects collided, and you have an on-trigger function. You can now access the script of the collided object by going down its hierarchy.
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Something like: “other.GetComponent<Player>().Damage()” will go to the Player component (this case it’s a script) and initialize the Damage function.
But what if the component does not exist? It can cause a bug or an error in the system, so it’s important to check if the component exists, or in other words, a null check. You can null check with an if statement. This creates a more optimized system capable of error handling.
