diff --git a/rust-pvz-genetics/src/genetics/arguments.rs b/rust-pvz-genetics/src/genetics/arguments.rs
new file mode 100644
index 0000000..c82f60f
--- /dev/null
+++ b/rust-pvz-genetics/src/genetics/arguments.rs
@@ -0,0 +1,13 @@
+use std::collections::HashMap;
+
+pub enum Variant {
+    Int(isize),
+    Float(f32)
+}
+pub struct ArgumentList(HashMap<String,Variant>);
+
+/*impl ArgumentList {
+    pub fn get(name: impl Into<String>) -> Option<&Variant> {
+
+    }
+}*/
diff --git a/rust-pvz-genetics/src/genetics/gene.rs b/rust-pvz-genetics/src/genetics/gene.rs
index 02eff57..dd20748 100644
--- a/rust-pvz-genetics/src/genetics/gene.rs
+++ b/rust-pvz-genetics/src/genetics/gene.rs
@@ -6,10 +6,24 @@ pub struct Gene {
 
 #[derive(PartialEq,Eq,Clone)]
 pub enum GeneType {
-    Producer,
-    Transport,
-    Consumer,
-    Modifier,
+    PureProducer {
+        create_flow: fn()
+    },
+    Transport {
+        distribute_between_children: fn()
+    },
+    Consumer {
+        consume: fn()
+    },
+    Modifier {
+        modify_flow: fn()
+    },
+    Trigger {
+        check_trigger: fn()
+    },
+    Observer {
+        observe: fn()
+    },
 }
 
 impl Gene {
@@ -20,3 +34,27 @@ impl Gene {
         }
     }
 }
+
+impl GeneType {
+    pub fn pure_producer(flow_function: fn()) -> Self {
+        Self::PureProducer { create_flow: flow_function }
+    }
+    pub fn random_distribution() -> Self {
+        Self::Transport { distribute_between_children: ||{} }
+    }
+    pub fn fill_all() -> Self {
+        Self::Transport { distribute_between_children: ||{} }
+    }
+    pub fn consumer(consumer_function: fn()) -> Self {
+        Self::Consumer { consume: consumer_function }
+    }
+    pub fn modifier(modifier_function: fn()) -> Self {
+        Self::Modifier { modify_flow: modifier_function }
+    }
+    pub fn trigger(trigger_function: fn()) -> Self {
+        Self::Trigger { check_trigger: trigger_function }
+    }
+    pub fn observer(observer_function: fn()) -> Self {
+        Self::Observer { observe: observer_function }
+    }
+}
diff --git a/rust-pvz-genetics/src/genetics/genome_builder.rs b/rust-pvz-genetics/src/genetics/genome_builder.rs
index d7dbe31..73f4290 100644
--- a/rust-pvz-genetics/src/genetics/genome_builder.rs
+++ b/rust-pvz-genetics/src/genetics/genome_builder.rs
@@ -20,6 +20,7 @@ impl GenomeBuilder {
     }
 
     pub fn create_root(mut self, root: Gene) -> Result<Self,GenomeBuilderError> {
+        // Check for root existance
         if self.genome.genes.len() > 0 {
             return Err(GenomeBuilderError::RootExists);
         }
@@ -29,15 +30,12 @@ impl GenomeBuilder {
     }
 
     pub fn insert_gene(mut self, gene: Gene, parent: Gene) -> Result<Self,GenomeBuilderError> {
+        // Check for gene collision
         if self.genome.genes.contains(&gene){
             return Err(GenomeBuilderError::GeneExists);
         }
 
         let edge = Edge::new(parent,gene.clone());
-        if self.genome.edges.contains(&edge) {
-            return Err(GenomeBuilderError::EdgeExists);
-        }
-
         self.genome.edges.push(edge);
 
         self.current_gene = self.genome.genes.len();
@@ -46,10 +44,37 @@ impl GenomeBuilder {
         Ok(self)
     }
     pub fn add_gene(mut self, gene: Gene) -> Result<Self,GenomeBuilderError> {
-       if self.genome.genes.len() == 0 {
+        // Check for root existance
+        if self.genome.genes.len() == 0 {
            return Err(GenomeBuilderError::RootDoesntExist);
-       }
-       todo!();
+        }
+        // Check for gene collision
+        if self.genome.genes.contains(&gene){
+            return Err(GenomeBuilderError::GeneExists);
+        }
+        let edge = Edge::new(self.get_current_gene().clone(),gene.clone());
+        self.genome.edges.push(edge);
+
+        self.current_gene = self.genome.genes.len();
+        self.genome.genes.push(gene);
+
+        Ok(self)
+
+    }
+    pub fn back(mut self, amount: Option<usize>) -> Self {
+        for _ in 0..amount.unwrap_or(0) {
+            
+        }
+        self
+    }
+    #[inline(always)]
+    pub fn get_current_gene(&self) -> &Gene {
+        &self.genome.genes[self.current_gene]
+    }
+
+    #[inline(always)]
+    pub fn get_current_gene_mut(&mut self) -> &mut Gene {
+        &mut self.genome.genes[self.current_gene]
     }
     
 }
diff --git a/rust-pvz-genetics/src/genetics/mod.rs b/rust-pvz-genetics/src/genetics/mod.rs
index 91e1dc0..1d2e255 100644
--- a/rust-pvz-genetics/src/genetics/mod.rs
+++ b/rust-pvz-genetics/src/genetics/mod.rs
@@ -5,6 +5,7 @@ pub mod edge;
 pub mod gene;
 pub mod genome;
 pub mod genome_builder;
+pub mod arguments;
 
 pub mod prelude {
     pub use crate::genetics::edge::*;
diff --git a/rust-pvz-genetics/src/genetics/plant_templates.rs b/rust-pvz-genetics/src/genetics/plant_templates.rs
index 6abc0a8..700d66f 100644
--- a/rust-pvz-genetics/src/genetics/plant_templates.rs
+++ b/rust-pvz-genetics/src/genetics/plant_templates.rs
@@ -2,6 +2,11 @@ use crate::genetics::{genome_builder::GenomeBuilder, prelude::*};
 
 pub fn peashooter_template() -> PlantGenome {
     GenomeBuilder::new()
-        .create_root(Gene::new("base", GeneType::Producer)).unwrap()
+        .create_root(Gene::new("root", GeneType::pure_producer(||{}))).unwrap()
+        .add_gene(Gene::new("stem", GeneType::fill_all())).unwrap()
+        .add_gene(Gene::new("head",GeneType::random_distribution())).unwrap()
+        .add_gene(Gene::new("leaf",GeneType::modifier(||{}))).unwrap()
+        .back(None)
+        .add_gene(Gene::new("face",GeneType::consumer(||{}))).unwrap()
         .finish()
 }