Reduce the distance the camera lags behind the player's actual position

src/entity/mod.rs

@@ -53,12 +53,14 @@ impl Position {
 #[derive(Debug)]
 pub struct TargetPosition {
     pub position: Vector3<f64>,
+    pub lerp_amount: f64,
 }
 
 impl TargetPosition {
     pub fn new(x: f64, y: f64, z: f64) -> TargetPosition {
         TargetPosition {
             position: Vector3::new(x, y, z),
+            lerp_amount: 0.2,
         }
     }
 

src/entity/player.rs

@@ -34,7 +34,9 @@ pub fn add_systems(m: &mut ecs::Manager) {
 pub fn create_local(m: &mut ecs::Manager) -> ecs::Entity {
     let entity = m.create_entity();
     m.add_component_direct(entity, Position::new(0.0, 0.0, 0.0));
-    m.add_component_direct(entity, TargetPosition::new(0.0, 0.0, 0.0));
+    let mut tpos = TargetPosition::new(0.0, 0.0, 0.0);
+    tpos.lerp_amount = 1.0 / 3.0;
+    m.add_component_direct(entity, tpos);
     m.add_component_direct(entity, Rotation::new(0.0, 0.0));
     m.add_component_direct(entity, Velocity::new(0.0, 0.0, 0.0));
     m.add_component_direct(entity, Gamemode::Survival);

src/entity/systems.rs

@@ -156,8 +156,8 @@ impl ecs::System for LerpPosition {
             let pos = m.get_component_mut(e, self.position).unwrap();
             let target_pos = m.get_component(e, self.target_position).unwrap();
 
-            pos.position = pos.position + (target_pos.position - pos.position) * delta * 0.2;
-            if (pos.position - target_pos.position).length2() < 0.01 {
+            pos.position = pos.position + (target_pos.position - pos.position) * delta * target_pos.lerp_amount;
+            if (pos.position - target_pos.position).length2() < 0.001 {
                 pos.position = target_pos.position;
             }
         }