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Google Software Engineer Interview Question

I interviewed in Mountain View, CA and was asked:
"Test line-of-sight in a game that accounts for obstacles to determine if the bad guy can see you or not."
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Is it 2D or 3D space? For 2D space calculate the slope (y2-y1)/(x2-x1) where (x1,y1) are your coordinates, (x2,y2) other guy's coordinates, and find if any obstacle with coordinates (xi, yi) has the same slope (are on the same line).
- Alex on Jan 17, 2014 Flag Response

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