# Class Vector2

**Module:** `require("engine")`

A simple 2D vector class of float type

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## Constructors

List of constructors that will create an instance of `Vector2`.

### new()

Default constructor that initializes the vector to [0, 0]

### new(x, y)

Parametrized constructor that initializes the vector to [x, y]

**Parameters:**

* x: `number` - The x component
* y: `number` - The y component

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## Member Functions

List of **member** functions within the table `Vector2`.
These functions need to be called using the colon symbol on some instance of `Vector2`.

### distance(other)

Calculates a distance to some other vector

**Parameters:**

* other: `Vector2` - The other vector to get distance to

**Returns:** `number` - The distance

### rotate(angle)

Returns a new vector that is rotated by some angle

**Parameters:**

* angle: `number` - in radians

**Returns:** `Vector2` - A new rotated vector

**Example:**

```lua
local PI = 3.141592653589
local a = engine.Vector2.new(1.0, 0.0)
local b = a:rotate(PI)
-- Prints: Rotated vector [1, 0] by 180 degrees is: [-1, -8.742278e-08]
print(string.format("Rotated vector %s by 180 degrees is: %s", a, b))
```

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## Fields

List of fields within the table `Vector2`.
These variables belong to this class and can be accessed only via an instance of this class.

### x

**Type:** `number`

### y

**Type:** `number`