Unity Rigidbody and Gravity Basics
In this Unity 3D tutorial we will be talking about adding physics to our game objects, such as adding gravity to our objects within a scene. This is all done by adding a unity rigidbody component to whatever game object we want to be affected by physics. It is recommended that you take this course with a friend so you can work together and keep each other accountable. mybringback would also love if you could tweet this course out to your friends, or post on facebook. I wish you the best as a future game developer. -Trav
Video Lesson
Description
In this Unity 3D tutorial we will learn about adding the unity rigidbody component to a game object. The unity rigidbody component will add some physics functionality to our object. If an object has a unity rigidbody component, we will easily be able to apply gravity to that object, we will be able to detect collisions that object undergoes, and a variety of other physics related properties.
In a future tutorial we will be able to change the physic properties of this rigidbody component, but as for now, we will just add gravity.
Good question- 2 ronseas. When you declare (create) a variable, ie var playerScore: int; , it only needs to be done once. Remember, everything inside function Update() happens each and EVERY frame. So if your game is running at 60fps, that’s literally re-creating that variable 60 times per second. Technically, it’s a very tiny performance hit, but can magnify quickly if done a lot. Also, you’ll find yourself searching to squeeze every possible drop of performance out of you game, especially for iPhone/Android, so even little things matter!Secondly, if I declared that playerScore variable in the function Update() area, that would mean it gets reset to 0 each frame. Obviously, we wouldn’t want that.In my opinion, things like performance details/etc are not a big deal to worry about yet, just paint with broad strokes and get the hang of JavaScript, then focus in and improve technique, workflow, etc. At least, that’s my strategy