Sets the hit area for an array of Game Objects to be a Phaser.Geom.Triangle
shape, using
the given coordinates to control the position of its points.
name  type  arguments  description 

gameObjects  Phaser.GameObjects.GameObject  Array.<Phaser.GameObjects.GameObject> 
An array of Game Objects to set as having a triangular hit area. 

x1  number 
The x coordinate of the first point of the triangle. 

y1  number 
The y coordinate of the first point of the triangle. 

x2  number 
The x coordinate of the second point of the triangle. 

y2  number 
The y coordinate of the second point of the triangle. 

x3  number 
The x coordinate of the third point of the triangle. 

y3  number 
The y coordinate of the third point of the triangle. 

callback  Phaser.Types.Input.HitAreaCallback  <optional> 
The hit area callback. If undefined it uses Triangle.Contains. 
This InputPlugin object.