Unexpected overlapping_sprites behavior

[paulstraw]

I'm running into some unexpected behavior with overlapping_sprites, and set up a minimal repro here: https://github.com/paulstraw/bzpd-overlapping-sprites/blob/main/src/lib.rs#L106-L108. Specifically:

1. It panics if no sprites overlap (or if the sprite has no collide rect set).
2. It leaks memory when other sprites do overlap.

[boozook]

Yup. Thanks! According to documentation

The caller is responsible for freeing the returned array

we have to dealloc it, not just borrow.

So, also need to check and fix same for

• checkCollisions
• moveWithCollisions
• querySpritesAtPoint
• querySpritesInRect
• querySpritesAlongLine
• querySpriteInfoAlongLine
• overlappingSprites
• allOverlappingSprites

this is original function names in the c-api

[boozook]

Fixed in #413