This is kind of urgent <img src="smileys/smiley19.gif" border="0" align="middle" />
In the middle of a game jam here.
In my game you create a sprite with the left click that appears temporally. There are invisible sprites through the layout.
I would like that when the sprite you create overlaps one of the non visible ones, they reveal INSIDE or UNDER the one you created, for its duration.
I'm assuming the right way to do this is with the blending effects, but I haven't been able to achieve this effect.
Any help please?