I could use help with a few parts of a project

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Austin 2014-3-12

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编辑： Austin 2014-3-12

The game “Linc-O” bears a legally non-actionable resemblance to the game Plinko. In Linc-O, a player chooses how many rows and columns the board will contain, as well as the maximum number of board cells that will be occupied by deﬂectors. After these choices are made, a random number of deﬂectors (between 1 and the maximum speciﬁed by the user) are randomly placed at positions in the board. Associated with each deﬂector is a number that determines how much the deﬂector will aﬀect the horizontal velocity of a piece that is dropped into the top of the board. Positive values will deﬂect the piece to the right, while negative values will deﬂect the piece to the left. When the player begins to play Linc-O, they will select a column to drop their piece into. The piece will begin falling vertically (and continue to fall vertically, unless it encounters a deﬂector, or multiple deﬂectors). If the piece encounters a deﬂector, its velocity will be aﬀected in such a way that it will move ±i columns to the left/right (depending on the value of the deﬂector) for each row that it falls vertically. The piece will bounce oﬀ of walls, if its velocity carries it into one, until it comes to rest at the bottom of the board. The piece is removed from the board before the next piece is dropped. The goal of Linc-O is to determine the position and value of each deﬂector in the board. Before each drop, the user is allowed to guess the locations and values of the deﬂectors. They complete the game when all deﬂector locations/values are determined.

The parts I am having trouble with are: giving the pegs a random x deflection value, placing the pegs randomly on the board, and the piece reacting with the sides of the board.

UPDATE: I have the pegs placed randomly.