2 files changed, 18 insertions, 2 deletions
diff --git a/src/sim/particle_manager/mod.rs b/src/sim/particle_manager/mod.rs
index 052369b..559bf2c 100644
--- a/src/sim/particle_manager/mod.rs
+++ b/src/sim/particle_manager/mod.rs
@@ -2,7 +2,7 @@ use crate::{
     config::CELLS_TO_METRES,
     content::materials::MaterialForm,
     sim::{
-        cell::cell::Cell, cell_manager::manager::CellManager, lib::ray::AwDda,
+        cell::Cell, cell_manager::manager::CellManager, lib::ray::AwDda,
         particle_manager::particle::Particle,
     },
 };
@@ -23,6 +23,7 @@ impl ParticleManager {
             let p = &mut self.particles[i];
 
             p.life -= delta_time;
+            p.collision_grace -= delta_time;
             if p.life <= 0.0 {
                 self.particles.swap_remove(i);
                 continue 'outer;
@@ -31,6 +32,13 @@ impl ParticleManager {
             p.velocity.y += PARTICLE_GRAVITY * delta_time;
             let dt_velocity = p.velocity * delta_time;
 
+            if p.collision_grace > 0.0 {
+                p.position += dt_velocity;
+                i += 1;
+                continue 'outer;
+            }
+
+            // compute collisions
             let mut dda = AwDda::new(p.position, p.position + dt_velocity);
 
             if let Some(mut prev) = dda.next() {
diff --git a/src/sim/particle_manager/particle.rs b/src/sim/particle_manager/particle.rs
index c68d81e..279eacb 100644
--- a/src/sim/particle_manager/particle.rs
+++ b/src/sim/particle_manager/particle.rs
@@ -7,15 +7,23 @@ pub struct Particle {
     pub velocity: Vec2,
     pub material: MaterialId,
     pub life: f32,
+    pub collision_grace: f32,
 }
 
 impl Particle {
-    pub fn new(position: Vec2, velocity: Vec2, material: MaterialId, life: f32) -> Self {
+    pub fn new(
+        position: Vec2,
+        velocity: Vec2,
+        material: MaterialId,
+        life: f32,
+        collision_grace: f32,
+    ) -> Self {
         Particle {
             position,
             velocity,
             material,
             life,
+            collision_grace,
         }
     }
 }