diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..791c1d1
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,24 @@
+name: Build C++
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  install:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y -f build-essential g++ cmake
+    
+  build:
+    needs: install
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Build project
+      run: make
diff --git a/GameDie.cpp b/GameDie.cpp
index e9fb279..1fe3d57 100644
--- a/GameDie.cpp
+++ b/GameDie.cpp
@@ -2,12 +2,18 @@
 #include <vector>
 #include <cstdlib>
 #include <ctime>
+#include<iostream>
+
+int main() {
+    return 0;
+}
 
 //class constructor that seeds the random number generator
 GameDie::GameDie()
 {
     srand(time(NULL));
     roll_counter.resize(FACES);
+    roll_percentages.resize(FACES);
 
     for(int i=0; i<FACES; i++)
       roll_counter[i] = 0;
@@ -19,13 +25,16 @@ GameDie::GameDie(unsigned int num)
     if( num == 0 )
     {
         roll_counter.resize(FACES);
+        roll_percentages.resize(FACES);
     }
     else{
         roll_counter.resize(num);
+        roll_percentages.resize(num);
     }
     for(int i=0; i<FACES; i++)
     {
         roll_counter[i] = 0;
+        roll_percentages[i] = 0.0;
     }
 
 }
@@ -36,6 +45,7 @@ int GameDie::roll()
 {
     int roll = rand() % roll_counter.size();
     roll_counter[roll]++;
+    num_rolls++;
     return roll + 1;
 }
 
@@ -44,3 +54,11 @@ int GameDie::roll()
 vector <int> GameDie::get_distribution(){
     return roll_counter;
 }
+
+vector<double> GameDie::get_percentages() {
+    for (int i = 0; i < (int) roll_counter.size(); i++) {
+        roll_percentages[i] = roll_counter[i]/(double) num_rolls;
+    }
+    return roll_percentages;
+}
+
diff --git a/GameDie.h b/GameDie.h
index 939e8f7..f02889c 100644
--- a/GameDie.h
+++ b/GameDie.h
@@ -11,10 +11,13 @@ class GameDie
    GameDie(unsigned int);
    int roll();
    vector <int> get_distribution();
+   vector<double> get_percentages();
 
   private:
    vector <int> roll_counter;
+   vector <double> roll_percentages;
    const static int FACES = 6;
+   int num_rolls = 0;
 };
 
 #endif
diff --git a/README.md b/README.md
index 9a8fe2c..a5eaef2 100644
--- a/README.md
+++ b/README.md
@@ -23,4 +23,6 @@ Once built, run the image:
 
 ...or run it with a bind mount to the current source code:
 
-`docker run --mount type=bind,source="$(pwd)",target=/usr/src -it cpp-container`
\ No newline at end of file
+`docker run --mount type=bind,source="$(pwd)",target=/usr/src -it cpp-container`
+
+[![Build C++](https://github.com/no-bugs-only-features/GameDie/actions/workflows/build.yml/badge.svg)](https://github.com/no-bugs-only-features/GameDie/actions/workflows/build.yml)