How to use the sprite visibility flag

[BroOfTheSun]

In sprite_eng.c, there are two methods to set a sprite visibility:

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SPR_setAlwaysVisible(Sprite *sprite, u16 value)
SPR_setNeverVisible(Sprite *sprite, u16 value)

Should I use these methods to set the visibility on a sprite? Are these methods the correct way to update visibility instead of directly updating sprite visibility:

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sprite->visibility = TRUE;
sprite->visibility = FALSE;

[Stef]

You should not set sprite->visibility directly, the sprite engine computes it automatically. What you can do however is to use :

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SPR_setAlwaysVisible(sprite, TRUE)

or

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SPR_setNeverVisible(sprite, TRUE) 

to force a sprite to be always visible or always hidden in which case the Sprite engine won't recompute automatically the visibility field.