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Directional Movement
====================
The Directional Movement [behavior](/engine/behavior) makes the associated [entity](/engine/entity) perform a directional movement on the 2D plane. It features:
* A direction [vector](/engine/vector2) that specifies the direction of the movement
* A movement speed, a scalar value given in pixels per second
You may control the direction of the movement using the [direction vector](#direction) or an [angle](#angle) given in degrees. Additionally, you may control the [speed](#speed) of the movement simply by changing its value.
Directional Movement is very versatile. You can use it to implement many things: different types of baddies, flying objects, racing cars viewed from a top-down view, simple projectiles, and much more.
*Example*
```
//
// The example below shows how to make an entity move to the
// right of the screen at a rate of 60 pixels per second
//
using SurgeEngine.Actor;
using SurgeEngine.Vector2;
using SurgeEngine.Behaviors.DirectionalMovement;
object "Simple Ball" is "entity"
{
actor = Actor("Simple Ball");
movement = DirectionalMovement();
state "main"
{
movement.direction = Vector2.right;
movement.speed = 60;
}
}
```
Factory
-------
#### Behaviors.DirectionalMovement
`DirectionalMovement()`
Spawns a DirectionalMovement.
*Returns*
A DirectionalMovement object.
Properties
----------
#### speed
`speed`: number.
The speed of the movement, in pixels per second.
#### direction
`direction`: [Vector2](/engine/vector2) object.
The direction of the movement.
#### angle
`angle`: number.
The counterclockwise angle of the direction vector, in degrees. 0 means right, 90 means up, etc.
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