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defmodule Tetris.Bottom do
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def merge(bottom, points) do
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points
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|> Enum.map( fn {x, y, c} -> {{x, y }, {x, y, c}} end)
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|> Enum.into(bottom)
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end
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def collides?(bottom, {x,y, _colour}) do
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collides?(bottom, {x,y})
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end
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def collides?(bottom, {x,y}) do
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!!Map.get(bottom, {x,y}) || x < 1 || x > 10 || y > 20
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end
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def collides?(bottom, points) when is_list(points) do
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Enum.any?(points, &collides?(bottom,&1))
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end
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end
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