diff --git a/src/actor.rs b/src/actor.rs
index 36d941f..c2a29d3 100644
--- a/src/actor.rs
+++ b/src/actor.rs
@@ -444,11 +444,10 @@ fn handle_wants_maxrotation(
     //time: Res<Time>,
     mut query: Query<(&mut AngularVelocity, &Engine, &WantsMaxRotation)>,
 ) {
-    let epsilon = 0.0001;
     //let d = time.delta_seconds();
     for (mut v_ang, engine, maxrot) in &mut query {
         let total = v_ang.0.length();
-        if total <= maxrot.0 + epsilon {
+        if total <= maxrot.0 + EPSILON {
             if total > maxrot.0 {
                 v_ang.0 = DVec3::splat(0.0);
             }
@@ -465,10 +464,9 @@ fn handle_wants_maxvelocity(
     mut query: Query<(&mut LinearVelocity, &Engine, &WantsMaxVelocity)>,
 ) {
     let dt = time.delta_seconds();
-    let epsilon = 0.0001;
     for (mut v, engine, maxv) in &mut query {
         let total = v.0.length();
-        if total <= maxv.0 + epsilon {
+        if total <= maxv.0 + EPSILON {
             if total > maxv.0 {
                 v.0 = DVec3::splat(0.0);
             }
@@ -480,7 +478,7 @@ fn handle_wants_maxvelocity(
         let avg_thrust = (engine.thrust_forward + engine.thrust_back + engine.thrust_sideways) / 3.0;
         let acceleration = (avg_thrust * dt) as f64 * -v.0;
         v.0 += acceleration;
-        if v.0.length() + epsilon < acceleration.length() {
+        if v.0.length() + EPSILON < acceleration.length() {
             v.0 = DVec3::splat(0.0);
         }
     }
diff --git a/src/camera.rs b/src/camera.rs
index ff8f583..e5cd8d7 100644
--- a/src/camera.rs
+++ b/src/camera.rs
@@ -195,10 +195,9 @@ pub fn update_map_camera(
     // NOTE: we need to subtract a bit from PI/2, otherwise the "up"
     // direction parameter for the Transform.look_at function is ambiguous
     // at the extreme values and the orientation will flicker back/forth.
-    let epsilon = 0.001;
     let min_zoom: f64 = target_trans.scale.x as f64 * 2.0;
     let max_zoom: f64 = 17e18; // at this point, camera starts glitching
-    mapcam.pitch = (mapcam.pitch + mouse_delta.y as f64 / 180.0 * settings.mouse_sensitivity as f64).clamp(-PI64 / 2.0 + epsilon, PI64 / 2.0 - epsilon);
+    mapcam.pitch = (mapcam.pitch + mouse_delta.y as f64 / 180.0 * settings.mouse_sensitivity as f64).clamp(-PI64 / 2.0 + EPSILON, PI64 / 2.0 - EPSILON);
     mapcam.yaw += mouse_delta.x as f64 / 180.0 * settings.mouse_sensitivity as f64;
 
     // Reset movement offset if target changes
diff --git a/src/common.rs b/src/common.rs
index 5debfc5..09341ab 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -8,10 +8,13 @@
 //       +                  +                +             ███
 //  +   ▀████████████████████████████████████████████████████▀
 //
-// Various common functions
+// Various common functions and constants
 
 use bevy::prelude::*;
 
+pub const EPSILON32: f32 = 1e-9;
+pub const EPSILON: f64 = 1e-9;
+
 #[inline]
 pub fn bool2vis(boolean: bool) -> bevy::prelude::Visibility {
     if boolean {