 The "if else" conditional statement allows you to change the flow of your program.
For game devs, "if else" is essential to implement the features of your game. 📌 You'll use the "if" statement to determine if the player is dead, jumping, swimming, attacking, and much more. 📌 You can put any conditional in your "if" statement as long as it evaluates to true or false. 📌 You can use the logical AND operator "&&" to return true if both sides are true. 📌 Use the Logical OR operator "||" to return if either side is true. 📌 The Logical NOT operator "!" may be used to reverse the outcome of an expression. 📌 It's possible to chain many expressions using these operators, but good practice is to define a method for large conditional statements. 📌 If you are a beginner and struggling to grasp the "if else" statement, then no sweat. 📌 "If else" is a basic construct, a building block used in all programs and games. 🚀 if ( YouHaveWillToLearn() ) // then the "if else" concept will soon click. ➡️ Follow @mefirstgames for more game dev tips. ➡️ Free Unity Tools: https://www.mefirstgames.com/hierarchy-comments.html
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 The Control Flow of a program is the order in which the program's code executes.
As a competent programmer, you NEED to understand where you are in the Control Flow and where it can lead you. 📌 By default, your program will execute instructions in a linear order, executing each line of code after the next. 📌 This linear flow can be broken up using conditional statements and function calls. 📌 It's easy to represent the Control Flow of your program using a graph. 📌 If using GCC, you can use tools like Trucov to print the Control Flow of your program. 📌 The If-Statement and Switch-Statement will cause your Control Flow to branch. 📌 Loops will cause your Control Flow to go back to a previous node. 📌 Function calls will jump to an entirely separate part of your control flow. ✅ When you are writing lines of code, you are defining the Control Flow of your program. ✅ Where it can branch, loop, jump, break; essentially what it can do and where it can go. ✅ The cool thing about the Control Flow is that you don't have to understand the entire graph at once. ✅ The graph can be broken up or "encapsulated" into a single section. ✅ This makes it easier for us to understand; that's why we separate code into different functions and classes. 🎮 In Unity, you can think of the entire Control Flow as a huge massive graph. 🎮 But we only need to worry about the Control Flow in our own MonoBehaviors. ➡️ Follow @mefirstgames for more game dev tips. ➡️ Free Unity Tools: https://www.mefirstgames.com/hierarchy-comments.html  The Singleton design pattern keeps the instantiation of a class to a single instance. Controversial but convenient, Singletons are something you will most definitely encounter in your life as a developer.
👍Singletons are very quick to implement and can make accessing an object easy. 👍Better than static classes, they can leverage polymorphism, cache values, and have their instances swapped out. 👍They require low memory usage, low latency, and only need one initialization. 👍In Unity, it offers better performance then FindObjectOfType. 👎Controlling initialization order across Singletons can become messy very quickly. 👎Deviates from the single responsibility principle. 👎Promotes mass coupling to a single instance. 👎It can be difficult to refactor, especially if you need to change its behavior in a different context. 👎In Unity, it is difficult to track the lifecycle of the Singleton MonoBehavior. 👎It's not always easy to subclass and extend. 👎Easy to abuse with many singletons and have limited flexibility in your codebase. ✅Do I recommend Singletons? Well, it depends... ✅Is your project small? Do you have time constraints? Will your class change in the future, or will it most likely always behave the same? e.g. logging system. ✅Singletons are not the cleanest or most flexible system, but they are convenient and quick to implement. ✅In Unity, Singleton MonoBehaviors can swap instances depending on what scene or prefab is loaded. 🚀Beware overuse, understand the limitations, and use it at your own discretion. ➡️Follow @mefirstgames for more game dev tips. ➡️Free Unity Tools: https://www.mefirstgames.com/hierarchy-comments.html |
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