1 files changed, 3 insertions, 2 deletions
diff --git a/src/main.rs b/src/main.rs
index fcf19c7..8984bf6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
-use particle_system::{Particle, ParticleSystem, Point, Vector};
+use particle_system::{Particle, ParticleSystem, Point, Solver, Vector};
 
+mod midpoint;
 mod particle_system;
 
 fn main() {
@@ -21,7 +22,7 @@ fn main() {
             particle.apply_force(gravity);
         }
 
-        system.euler_step(dt);
+        system.step(dt);
 
         println!("{:?}", system);
     }