diff --git a/src/gameplay_style.rs b/src/gameplay_style.rs
index 999e1d1..4738d6b 100644
--- a/src/gameplay_style.rs
+++ b/src/gameplay_style.rs
@@ -321,16 +321,17 @@ impl WalkSettings{
 		if control_dir==crate::integer::vec3::ZERO{
 			return control_dir;
 		}
-		let n=normal.length_squared();
-		let m=control_dir.length_squared();
-		let nm=(n*m).fix_2();
+		let nn=normal.length_squared();
+		let mm=control_dir.length_squared();
+		let nnmm=nn*mm;
 		let d=normal.dot(control_dir);
-		if d<nm{
+		let dd=d*d;
+		if dd<nnmm{
 			let cr=normal.cross(control_dir);
 			if cr==crate::integer::vec3::ZERO_2{
 				crate::integer::vec3::ZERO
 			}else{
-				(cr.cross(normal)*self.accelerate.topspeed/(n*(nm*nm-d*d).sqrt())).divide().fix_1()
+				(cr.cross(normal)*self.accelerate.topspeed/((nn*(nnmm-dd)).sqrt())).divide().fix_1()
 			}
 		}else{
 			crate::integer::vec3::ZERO
@@ -361,27 +362,29 @@ impl LadderSettings{
 		if control_dir==crate::integer::vec3::ZERO{
 			return control_dir;
 		}
-		let n=normal.length_squared();
-		let m=control_dir.length_squared();
-		let nm=(n*m).fix_2();
-		let mut d=normal.dot(control_dir);
-		if d<((-self.dot)*nm).fix_2(){
-			control_dir=Planar64Vec3::new([Planar64::ZERO,m.fix_1(),Planar64::ZERO]);
-			d=normal.y.fix_2();
-		}else if (self.dot*nm).fix_2()<d{
-			control_dir=Planar64Vec3::new([Planar64::ZERO,-m.fix_1(),Planar64::ZERO]);
-			d=-normal.y.fix_2();
+		let nn=normal.length_squared();
+		let mm=control_dir.length_squared();
+		let nnmm=nn*mm;
+		let d=normal.dot(control_dir);
+		let mut dd=d*d;
+		if (self.dot*self.dot*nnmm).fix_4()<dd{
+			if d.is_negative(){
+				control_dir=Planar64Vec3::new([Planar64::ZERO,mm.sqrt().fix_1(),Planar64::ZERO]);
+			}else{
+				control_dir=Planar64Vec3::new([Planar64::ZERO,-mm.sqrt().fix_1(),Planar64::ZERO]);
+			}
+			dd=(normal.y*normal.y).fix_4();
 		}
 		//n=d if you are standing on top of a ladder and press E.
 		//two fixes:
 		//- ladder movement is not allowed on walkable surfaces
 		//- fix the underlying issue
-		if d.abs()<nm.abs(){
+		if dd<nnmm{
 			let cr=normal.cross(control_dir);
 			if cr==crate::integer::vec3::ZERO_2{
 				crate::integer::vec3::ZERO
 			}else{
-				(cr.cross(normal)*self.accelerate.topspeed/(n*(nm*nm-d*d).sqrt())).divide().fix_1()
+				(cr.cross(normal)*self.accelerate.topspeed/((nn*(nnmm-dd)).sqrt())).divide().fix_1()
 			}
 		}else{
 			crate::integer::vec3::ZERO