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Custom Bounds Calculation with Hull


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In a project I am working on I wish to have bounds for my display objects be more accurate than a rectangle. For example, this balloon sprite currently collides with everything in its default AABB bounds. However according to the documentation I can override calculateBounds   and define a hull for this object. How might I go about that for a large collection of sprites I have stored as a PNG? Do I have to manually map out the hull for each sprite or is there a built in algorithm to do this for png with transparent backgrounds?






Edited by peterje
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