Sprite polygonic hit area vs graphics draw

[hexdecks]

Hi All,

 

Apologies for the frequent posts - I'm finding my way with the Pixi API's.

 

I've run into a strange issue whereby I cannot set an accurate polygon hit area for a sprite. 

My understanding is this:

 

• By default, all sprites will have a bounding rectangle as a hit area
• For more complicated sprites, you can override this hit area using a new PIXI.Polygon (using Pixi.Points) to draw the relevant hit area polygon.
• If I want to visualise this hit area, I can create a new graphics object and use lineTo / moveTo with the same x/y co-ords as my polygon hit area.

However, when feeding my coords to the graphics object, the graphics object fills perfectly over the sprite. However, when I set these same points (x,y) coords as the coords for my sprite polygon hit area - the hit test is all over the place. (I would expect the graphics object to accurately reflect the hit area as they share the same x/y points!)

 

Do I have a misunderstanding somewhere?

[hexdecks]

I have just had a thought. Are the hit area co-ords relative to the sprite anchor point?

[whyameye]

yes the hit area is relative to the anchor point