clamp calc_ray_end angle properly (#34227)

CleverRaven · Sep 26, 2019 · 91a9934 · 91a9934
1 parent a8afea2
commit 91a9934
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/line.cpp b/src/line.cpp
@@ -731,8 +731,13 @@ rl_vec3d rl_vec3d::operator/( const float rhs ) const
     return ret;
 }
 
-void calc_ray_end( const int angle, const int range, const tripoint &p, tripoint &out )
+void calc_ray_end( int angle, const int range, const tripoint &p, tripoint &out )
 {
+    // forces input angle to be between 0 and 360, calculated from actual input
+    angle %= 360;
+    if( angle < 0 ) {
+        angle += 360;
+    }
     const double rad = DEGREES( angle );
     out.z = p.z;
     if( trigdist ) {