Simplify xrel() and yrel()

Value of XNORM() and YNORM() is in [0,WORLD_X) and [0,WORLD_Y),
respectively.

diff --git a/src/lib/common/xy.c b/src/lib/common/xy.c
index cd136787e2e839b1d0a06fa267b94dcbea1a2ebe..b1375b146d982e83e2c78096386b863bd6a13014 100644 (file)
--- a/src/lib/common/xy.c
+++ b/src/lib/common/xy.c
@@ -71,8 +71,6 @@ xrel(struct natstr *np, coord absx)
     x = XNORM(absx - np->nat_xorg);
     if (x >= WORLD_X / 2)
        x -= WORLD_X;
-    else if (x < -WORLD_X / 2)
-       x += WORLD_X;
     return x;
 }
 
@@ -84,8 +82,6 @@ yrel(struct natstr *np, coord absy)
     y = YNORM(absy - np->nat_yorg);
     if (y >= WORLD_Y / 2)
        y -= WORLD_Y;
-    else if (y < -WORLD_Y / 2)
-       y += WORLD_Y;
     return y;
 }