<h1 id="heading-vector2-class">Vector2 Class</h1>
<p>It is basically a class that represents a 2D Vector which is an entity of(x,y), which also has a length value.</p>
<p>It is used for representing the position, a velocity which is a vector with direction and magnitude, or an (x,y) rectangle size.</p>
<h1 id="heading-vector2-method">Vector2 Method</h1>
<ol>
<li><p>negate() - It reverses the direction of the vector.</p>
</li>
<li><p>length() - It gives the size or magnitude of the vector.</p>
</li>
<li><p>normalized() - It normalizes the vector (magnitude 1)</p>
</li>
<li><p>random() - It gives a random vector in the range of (0,0) to (1,1)</p>
</li>
</ol>
<h1 id="heading-how-to-create-a-vector-that-is-moving-at-90-north-up-and-with-speed-of-20-units">How to create a vector that is moving at 90' north (up) and with speed of 20 units?</h1>
<pre><code class="lang-dart">Vectir2(<span class="hljs-number">0</span>,<span class="hljs-number">-1</span>).normalized() * <span class="hljs-number">20</span>
</code></pre>
<h1 id="heading-random-generation">Random generation</h1>
<p>Case with <code>random()</code></p>
<ol>
<li>Random location</li>
</ol>
<pre><code class="lang-dart"><span class="hljs-comment">//First, get a random vector and set its velocity</span>
velocity = Vector2.random().normalized() * <span class="hljs-number">22</span>
<span class="hljs-comment">//Then set the position of the component to the location</span>
position = Vector2(<span class="hljs-number">80</span>,<span class="hljs-number">100</span>)
</code></pre>
<ol>
<li><p>Random magnitude (speed)</p>
</li>
<li><p>Random direction - vector heading</p>
</li>
</ol>
<pre><code class="lang-dart">Vector2.random().normalized() * <span class="hljs-number">10</span>
</code></pre>


# Vector2 Class

It is basically a class that represents a 2D Vector which is an entity of(x,y), which also has a length value.

It is used for representing the position, a velocity which is a vector with direction and magnitude, or an (x,y) rectangle size.

# Vector2 Method

1.  negate() - It reverses the direction of the vector.
    
2.  length() - It gives the size or magnitude of the vector.
    
3.  normalized() - It normalizes the vector (magnitude 1)
    
4.  random() - It gives a random vector in the range of (0,0) to (1,1)
    

# How to create a vector that is moving at 90' north (up) and with speed of 20 units?

```dart
Vectir2(0,-1).normalized() * 20
```

# Random generation

Case with `random()`

1.  Random location
    

```dart
//First, get a random vector and set its velocity
velocity = Vector2.random().normalized() * 22
//Then set the position of the component to the location
position = Vector2(80,100)
```

1.  Random magnitude (speed)
    
2.  Random direction - vector heading
    

```dart
Vector2.random().normalized() * 10
```

Flame(Flutter game engine) Vector2 (method)(random vector2)

taesikmun's team blog

taesikmun's team blog

Flame(Flutter game engine) Vector2 (method)(random vector2)

Table of contents

Vector2 Class

Vector2 Method

How to create a vector that is moving at 90' north (up) and with speed of 20 units?

Random generation