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Unreal Engine 5 Game Development with C++ Scripting
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A function is a block of code that only runs when it is called. Functions are usually defined and used to perform certain actions, and they can be called anytime when needed; therefore, they are reusable code. Through the use of functions, we can avoid redundant code, reducing the risk of code inconsistency and the chance of program bugs.
To define a function, you should specify the name and return type of the function, followed by a pair of parentheses. Presented here is a function that has no parameter and a void return type:
void DisplayLabel(){
std::cout << "The result of 1 + 2 is ";
}
You can pass data as parameters into a function, and the function parameters are placed in between the parentheses. Presented here is a function that has two int parameters and returns the addition of the two input values as the result:
int Add(int a, int b){
return...