Spotting

Russulas that grow with pine. Quite a bunch of members from Russula fit that description, don't they? One factor is indeed color (traditionally, I've seen R. emetica to be a bold- and bright-colored red -- not purple -- agaric, but that's besides the point right now), but I think you gotta give some more information about why you believe it's R. emetica. The habitat and color are two, but more could be an uplifted depressed cap in age, fairly well-spaced gills, a very faintly fillibrose/velvety cap, etc. I don't really bother much with the identification of reddish-tinged Russulas; there is much debate about them even amongst experienced mycologists, and even with potent microscope and chemical tests performed on these mushrooms, there's still much confusion on which is which.

Yes, but the color of his hat purple suits Russula emetica, which under the influence of the sun does not change color to red.

Russula emetica 100% Since see leaves of pine. Russula emetica growing very often in pine forests.

Definitely genus Russula. Although the cap does not look red enough and the gills are not close enough to be R. emetica... hmm.