02 cSharp & Unity Language Notes

Logical Operators

&& = both true
|| = either true
! = false to be true
== = true

Types of Data

String = text (ex. Console.WriteLine("Hello World");)
Int = Whole number (ex. Int area = 120;)
double = decimal number (ex. double weight = 1.54;)
Float = less accurate decimal (postfix f)
Decimal = more accurate decimal (postfix m)
Bool = true or false
var = any data type can be used

String Info

" = for having Quotation marks in strings.
Data in strings(string interpolation) = use $ before the quotation and then {} around the variable.
\t = adds a tab.
\n = creates a new line.

Methods

blocks of code defined within a class that controls game behavior, logic, and interactions.

Start() = Called once before the first frame update.

Update() = is called once per frame and is primarily used for handling input, game logic, and non-physics movement.

LateUpdate() = executes once per frame immediately after all Update functions have finished, ensuring it captures the final positions of objects (smooth camera following).

Awake() = executes when a prefab is instantiated.

FixedUpdate() = runs at a fixed time interval independent of frame rate, making it the dedicated place for all physics calculations (rigid bodies).

void = the method doesn't return a value.

public = shows variables in the inspector and allows for other scripts to reference said variable.

. = directs into a method (think of it like a directory, you put a dot after a method to use the commands attached to that method.)

transform = grabs the transform component of the object.

transform.Translate/Rotate = Used to move the position/rotation of said object by however many units.

Vector3 = x y z

Vector2 = x y

new = keyword to create something.

Instantiate = Creates an object ex. Instantiate(object, position, rotation, parent).

GameObject[] = Creates an array to allow for randomness.

Random.Range(From, to) = Chooses a number from the chosen length (must go one higher than the number you want for the length).

.triggered = triggers in an if statement if button is pressed.

InvokeRepeating("MethodName", Delay, Interval) = Does a method repeatedly.

Invoke("MethodName", Delay) = Does a method once.

AddForce(Vector3 * number, ForceMode) = Adds force to the rigidbody.

ForceMode.Impulse = Instant force application.

ForceMode.Force = Applies force over time.

GetComponent<> = Gathers info on an component.

GameObject.Find("string") = Find a game object in a scene and get a component from it.

ReadValue<> = gets a value of a variable.

If & Switch Statements

Switch

 int choice = 2;

switch(choice);
{
 // "1" is the thing that has to be true for this case to run (can be any form of data)
case 1:
Console.Write("example1");
 // "break" stops the code so it doesn't run the rest.
 break;
 
case 2:
Console.Write("ex. 2");
break;
 // default = else(no match)
default:
Console.Write("no match");
break;
}

If

int x = -10

if(x<0)
{
Console.WriteLine("less than 0");
}
else
{
Console.WriteLine("greater than zero");
}

Loops

for

/* initializer creates a variable, condition is what is needed to stop the loop
and the iterator is what runs every time the loop runs */
for (initializer; condition; iterator)
{
// code block
}