But it only really mentions the Warhammer in the books when Eddard is remembering the fight at the Trident. Where as the boar hunting plays a much larger role in books and TV Series.
i just realized somthing, if the game of thrones was a rpg video game, the mother of dragons( i forgot how to spell her name and highly doubt i would even come close if i tried) would be the person who grinds and grinds until they can just breeze through a boss or overpopulated enemy location, joffery is the punk litle kid who thinks he is awesome and ruins the game for everyone else but ultimately gets destroyed.
thinking about it
Joeffery, the kid that uses his parents money to buy **** in the game
Jaime: the lucky guy that got good loot without farming
Tyrion Lannister: the guy who knows everything about the game and without doing too much he is the best
Cersei Lannister: the gamer gurl that gets everything just for being a guurrl
Arya Stark: that bad ass real gamer girl that trains hard and even disguised as a boy to avoid trouble
Hodor: hodor
More specifically, Joffrey's a twink: he's outfitted by people wealthier and more powerful than him (Tywin especially, with the Valyrian steel sword) and, as you say, thinks he's hot **** until he runs into someone who actually knows what they're doing.