Changed default number of weak collisions to 0 from 3 to avoid breaking sputtering when Z2>>Z1

Author: drobnyjt

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "RustBCA"
-version = "2.0.0"
+version = "2.0.1"
 default-run = "RustBCA"
 authors = ["Jon Drobny <[email protected]>", "Jon Drobny <[email protected]>"]
 edition = "2018"

src/input.rs

@@ -141,6 +141,10 @@ fn three() -> usize {
     3
 }
 
+fn zero_usize() -> usize{
+    0
+}
+
 ///This helper function is a workaround to issue #368 in serde
 fn default_buffer_size() -> usize {
     8192
@@ -221,7 +225,7 @@ impl Options {
             track_recoils: track_recoils,
             track_recoil_trajectories: false,
             write_buffer_size: default_buffer_size(),
-            weak_collision_order: three(),
+            weak_collision_order: zero_usize(),
             suppress_deep_recoils: false,
             high_energy_free_flight_paths: false,
             electronic_stopping_mode: default_electronic_stopping_mode(),
@@ -302,7 +306,7 @@ impl Options {
             track_recoils: false,
             track_recoil_trajectories: false,
             write_buffer_size: default_buffer_size(),
-            weak_collision_order: three(),
+            weak_collision_order: zero_usize(),
             suppress_deep_recoils: false,
             high_energy_free_flight_paths: false,
             electronic_stopping_mode: default_electronic_stopping_mode(),