Difference between get_rect() and get_AABB() for Sprite

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che...@sina.com

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Jul 17, 2018, 8:12:53 AM7/17/18
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I have checked the online document for Sprite introduction, but still confused about the two functions difference.

So, could someone explain to me the detailed differences for them?

Thank you so much.

claudio canepa

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Jul 17, 2018, 11:12:05 AM7/17/18
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get_rect does not handle sprite rotations, get_AABB accounts for rotations.
Examples:
    test\test_rect.py
    test\test_sprite_aabb.py

   




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carmen

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Jul 18, 2018, 5:50:56 AM7/18/18
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Thanks Canepa.

 

But seems get_rect() doesn’t work well when image_anchor is not (0, 0), that’s why?

 

 

From: claudio canepa
Sent: 2018
717 23:12
To: cocos2d discuss
Subject: Re: Difference between get_rect() and get_AABB() for Sprite

 

get_rect does not handle sprite rotations, get_AABB accounts for rotations.

Examples:

    test\test_rect.py

    test\test_sprite_aabb.py

 

   

 

 

 

On Tue, Jul 17, 2018 at 9:12 AM, <che...@sina.com> wrote:

I have checked the online document for Sprite introduction, but still confused about the two functions difference.

 

So, could someone explain to me the detailed differences for them?

 

Thank you so much.

 

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claudio canepa

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Jul 18, 2018, 9:59:34 AM7/18/18
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I don't know for sure, guess one of the following

   - make get_rect more lightweight by sticking to a simpler case
  -  anchor considerations were overlooked when get_rect was coded

I would use get_AABB


On Wed, Jul 18, 2018 at 6:50 AM, carmen <che...@sina.com> wrote:

Thanks Canepa.

 

But seems get_rect() doesn’t work well when image_anchor is not (0, 0), that’s why?

 

 

From: claudio canepa
Sent: 2018
717 23:12
To: cocos2d discuss
Subject: Re: Difference between get_rect() and get_AABB() for Sprite

 

get_rect does not handle sprite rotations, get_AABB accounts for rotations.

Examples:

    test\test_rect.py

    test\test_sprite_aabb.py

 

   

 

 

 

On Tue, Jul 17, 2018 at 9:12 AM, <che...@sina.com> wrote:

I have checked the online document for Sprite introduction, but still confused about the two functions difference.

 

So, could someone explain to me the detailed differences for them?

 

Thank you so much.

 

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