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Author Topic: sprite collision  (Read 2159 times)

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arkus

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sprite collision
« on: July 28, 2013, 05:31:54 pm »
Hi!

I'm looking for an easier way to manage the collosion of two sprites. at the moment, i use sprite.getposition().x/y of each sprite and compare the values with a certain tolerance:


Is there a function which compares the alpha channel of two sprites and spots a collision of them?
i need it especially for the collsion of round objects.
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The Hatchet

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Re: sprite collision
« Reply #1 on: July 28, 2013, 05:49:28 pm »
Nope sorry, the only built in collision functions are with IntRect to check for collision or intersection.  For any other shapes you'll need to do your own
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Hiura

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Re: sprite collision
« Reply #2 on: July 28, 2013, 06:42:35 pm »
IF you know for sure that the two objects are circles, you know that there is a collision is the distance of the two centers is less than, or equal, to the sum of the two radiuses. It will be much faster than doing complex pixel-perfect collision detection.
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arkus

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Re: sprite collision
« Reply #3 on: July 28, 2013, 07:02:43 pm »
Quote
IF you know for sure that the two objects are circles, you know that there is a collision is the distance of the two centers is less than, or equal, to the sum of the two radiuses. It will be much faster than doing complex pixel-perfect collision detection.

nice hint, i think this will work in most cases. thank you!
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