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Liam Andersson
1,396 PointsI have a question about C#
I have a question about the code:
movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
What do the 0.0f mean? Does it mean that it should stay at the ground (y)? But if so why isnt it by the moveVertical variable? Vertical is up and down and horizontal is left and right..
Am I stupid?
Joseph Wasden
20,406 PointsAlso, as to if you are stupid:
No. Just...nope. :)
Liam Andersson
1,396 PointsThanks for your answer, well i was watching this course: https://teamtreehouse.com/library/how-to-make-a-video-game-2 I have problems understanding almost all of it, should I start with the #C basics instead? Because I have problems with the quaternions.. I really got stuck there. Any advice?
Here is the video about quaternions: https://teamtreehouse.com/library/quaternions
Joseph Wasden
20,406 PointsIt's a pro/con situation. The course says it was designed for beginners who have never programmed before, so it could very well be OK to stay the course and finish it out. However, from what I can tell, you will be learning coding concepts alongside learning Unity engine, and that may be more than you want to wrap your head around at the moment.
The benefit of finishing the How to Make a Video Game course is that it is interesting to learn game design and you'll have a leg up if thats the direction you want to end up going. The benefit of going to a basics course is it won't include learning Unity engine alongside it, so you can focus more on just the language. If you think your interest level will be fine if you just take a basics course, perhaps start with that. In the end, only you'll know what you need to help you learn.
I'll check into the video and see if I can answer your original question.
1 Answer
Joseph Wasden
20,406 PointsFrom the unity Documentation:
"Representation of 3D vectors and points.
This structure is used throughout Unity to pass 3D positions and directions around. It also contains functions for doing common vector operations.
Besides the functions listed below, other classes can be used to manipulate vectors and points as well. For example the Quaternion and the Matrix4x4 classes are useful for rotating or transforming vectors and points."
https://docs.unity3d.com/ScriptReference/Vector3.html
When creating a new Vector3, we need to provide x, y, and z. coordinates. In your shared code, the 0.0f is the y coordinates, per the constructor documentation linked below.
Liam Andersson
1,396 PointsThanks for the comment! I will actually continue through the course because I'm interested in video games. But I will also check the C# Basic course. Thanks again for your help!
Joseph Wasden
20,406 PointsYep, no problem. Good luck!
Joseph Wasden
20,406 PointsJoseph Wasden
20,406 PointsI'm not sure if you are asking this question in the context of a particular video or not, but if you are, please link to it so we can examine the method context.
Otherwise, 0.0f is a way of denoting floating point notation. Here was a useful answer from stack overflow.
https://stackoverflow.com/questions/14302898/is-it-better-to-write-0-0-0-0f-or-0f-instead-of-simple-0-for-supposed-float-or