feat: deco model default

README.md

@@ -48,8 +48,7 @@ use dive_deco::{ BuehlmannConfig, BuehlmannModel, DecoModel };
 
 fn main() {
     // model with default config (GF 100/100)
-    let default_config = BuehlmannConfig::default();
-    let model = BuehlmannModel::new(default_config);
+    let model = BuehlmannModel::default();
     println!("{:?}", model.config()); // BuehlmannConfig { gf: (100, 100) }
 }
 ```

src/buehlmann/buehlmann_model.rs

@@ -37,22 +37,24 @@ impl BuehlmannState {
 impl DecoModel for BuehlmannModel {
     type ConfigType = BuehlmannConfig;
 
+    // initialize with default config
+    fn default() -> Self {
+        Self::new(BuehlmannConfig::default())
+    }
+
     /// initialize new Buehlmann (ZH-L16C) model with gradient factors
     fn new(config: BuehlmannConfig) -> Self {
         // validate config
         if let Err(e) = config.validate() {
             panic!("Config error [{}]: {}", e.field, e.reason);
         }
-
         // air as a default init gas
         let initial_model_state = BuehlmannState::initial();
-
         let mut model = Self {
             config,
             compartments: vec![],
             state: initial_model_state,
         };
-
         model.create_compartments(ZHL_16C_N2_16A_HE_VALUES, config);
 
         model

src/common/deco_model.rs

@@ -23,15 +23,18 @@ pub struct DiveState {
 pub trait DecoModel {
     type ConfigType: DecoModelConfig;
 
+    // default
+    fn default() -> Self;
+
+    /// model init
+    fn new(config: Self::ConfigType) -> Self;
+
     /// get model config
     fn config(&self) -> Self::ConfigType;
 
     /// get model dive state
     fn dive_state(&self) -> DiveState;
 
-    /// model init
-    fn new(config: Self::ConfigType) -> Self;
-
     /// register step (depth: meters, time: seconds)
     fn step(&mut self, depth: Depth, time: Seconds, gas: &Gas);
 

tests/fixtures.rs

@@ -1,7 +1,7 @@
 use dive_deco::{ BuehlmannModel, BuehlmannConfig, DecoModel, Gas, GradientFactors };
 
 pub fn model_default() -> BuehlmannModel {
-    BuehlmannModel::new(BuehlmannConfig::default())
+    BuehlmannModel::default()
 }
 
 pub fn model_gf(gf: GradientFactors) -> BuehlmannModel {