[Change] Using atan2 instead of atan.
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@ -8,7 +8,7 @@
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#define VANGLE(v) ((v).angle)
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#define VANGLE(v) ((v).angle)
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#define MOD(x,y) (sqrt((x)*(x) + (y)*(y)))
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#define MOD(x,y) (sqrt((x)*(x) + (y)*(y)))
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#define ANGLE(x,y)(((x)==0.) ? 0. : atan2(y,x))
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#define ANGLE(x,y) (((x)==0.) ? 0. : atan2(y,x))
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#define vect_dist(v,u) MOD((v)->x-(u)->x, (v)->y-(u)->y)
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#define vect_dist(v,u) MOD((v)->x-(u)->x, (v)->y-(u)->y)
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#define vect_odist(v) MOD((v)->x, (v)->y)
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#define vect_odist(v) MOD((v)->x, (v)->y)
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