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r4392 | helixhorned | 2014-03-23 07:29:09 -0700 (Sun, 23 Mar 2014) | 4 lines

Factor out approaching val. to target val by half-difference steps into logapproach().

Fix a case in G_MovePlayers(), where the player sprite's shade is approached
toward the ceiling/floor's shade. Before, it could stop at one above or below!
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