GD Script

Question 1

What is a constant and it’s naming format

Answer 1

A constant is a value that cannot be changed
Write names in CAPS with _ beween words -
ie const DAVID_PILK

Question 2

What is a dynamic variable and how does it apply to Godot

Answer 2

a dynamic variable means you do not have to name the variable type and the type can change in the program

Question 3

What is a keyword

Answer 3

words reserved by GD script such as var or enum, cannot be used as identifiers

Question 4

Types of numbers

Answer 4

Integer - a whole number,
float - a number with a decimal
constant - a number that doesn’t change

Question 5

Define Enum

Answer 5

a list of constants

Question 6

Variable name format

Answer 6

lower-case text, join words with underscores this_variable

Question 7

types of variable

Answer 7

int, bool, float and string

Question 8

static typing

Answer 8

where you declare what type a variable is - ie var name : string = “David”

Question 9

Global scope vs local scope

Answer 9

determines where a variable is accessible from

Question 10

Data type

Answer 10

An attribute which tells the computer how a programmer intends to use the data

Question 11

What do data types do?

Answer 11

1. Define the types of operations that can be done on the data
2. How the values can be stored
3. The meaning of the data

Question 12

Literal value, alternate name and what it is

Answer 12

Literal

A value stored directly in the source code, without referencing something else

Question 13

Null?

Answer 13

Represented by null in the code

Represents - No data type

Question 14

When to use floats over integers

Answer 14

When more accuracy is needed

Question 15

In Boolean values which is true and which is fakes, 0 or 1?

Answer 15

False = 0
True = 1

Question 16

If you don’t assign a value to a variable what data type will it contain?

Answer 16

Null

Question 17

What is a typed variable?

Answer 17

A variable where the data type is specified

Ie var name : string = “Sap”

Question 18

Casting?

Answer 18

Changing a variable type to another variable type ie “10” to 10

Question 19

What is the casting operator

Answer 19

As

ie. var amount : int = “10” as int

Question 20

When to use a variable?

Answer 20

When you have a datatype that may change over the course of the game

ie var health : int = 100

Question 21

Memory Life Cycle

Answer 21

Allocate
Use
Release

Question 22

What system allocates memory

Answer 22

The OS

Question 23

Operator

Answer 23

A symbol used to manipulate operands ie. + * etc

Question 24

What is an Operand?

Answer 24

A number, Boolean or string

ie. 1 +2 - the operands are 1 and 2

Question 25

Assignment operator

Answer 25

Assign a value to its left operand based on the value of its right operand ie x = y

Question 26

Remainder assignment

Answer 26

%=

Question 27

Additional assignment?

Answer 27

+=

Question 28

Subtraction assignment

Answer 28

-=

Question 29

Multiplication assignment

Answer 29

*=

Question 30

Devision assignment

Answer 30

/=

Question 31

What are comparison operands

Answer 31

Compares two values and reruns a result based on if the answer is true

Question 32

Equal operator

Answer 32

==

Question 33

Not equal operator

Answer 33

!=

Question 34

Greater than or equal to

Answer 34

>=

Question 35

Less thank or equal to

Answer 35

<=

Question 36

Not symbol

Answer 36

!

Question 37

And symbol

Answer 37

&&

Question 38

Or symbol

Answer 38

||

Question 39

Can a constant have a null value?

Answer 39

No

Question 40

Can you change a constants type? Ie string to int

Answer 40

No

Question 41

Three benefits of using constants?

Answer 41

Readable code Easier debugging Save time when editing code

Question 42

When to use constants?

Answer 42

When you have a value you don’t think will change for the lifecycle is the game

Question 43

Naming conventions for constants vs variables

Answer 43

``` const NAME = var name = ```