Resolve issues #106 and #107

.github/workflows/actions.yml

@@ -0,0 +1,23 @@
+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: g++ main.cpp -std=c++17 -o firstIO

GameDie.cpp

@@ -3,6 +3,23 @@
 #include <cstdlib>
 #include <ctime>
 
+/*
+ * get_distribution() keeps a tally of how many times each face has been rolled, but some users are reporting that
+ * they want this same information as a percentage of total rolls.
+
+Add a public member function vector<double> GameDie::get_percentages() that returns
+ the percentage of rolls for each face relative to the number of total rolls.
+ Each percentage should be a double between 0 and 1 inclusively.
+ For example, if we have a 4-sided die that has rolled each face 1 time and has the get_distribution() of:
+{1,1,1,1}
+then the get_percentages() function should return:
+{0.25,0.25,0.25,0.25}
+
+If there are no rolls yet, percentages should report 0 for each face in the vector.
+ Otherwise, the percentage should be calculated by face rolls / total rolls.
+ */
+
+
 //class constructor that seeds the random number generator
 GameDie::GameDie()
 {
@@ -30,6 +47,21 @@ GameDie::GameDie(unsigned int num)
 
 }
 
+GameDie::vector<double> get_percentages(){
+    vector<double> percentages;
+    vector<int> distribution = get_distribution();
+
+    int totalRolls = 0;
+    for (int i = 0; i < FACES; i++){
+        totalRolls += distribution[i];
+    }
+    for (int i = 0; i < FACES ; ++){
+        percentages[i] = distribution / totalRolls;
+    }
+
+    return percentages;
+}
+
 //generate a random number between 1-n where n is the counter size
 // (inclusive) and return it
 int GameDie::roll()

GameDie.h

@@ -11,9 +11,11 @@ class GameDie
    GameDie(unsigned int);
    int roll();
    vector <int> get_distribution();
+   vector<double> get_percentages();
 
   private:
-   vector <int> roll_counter;
+
+   vector <int> counter;
    const static int FACES = 6;
 };
 

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="$(pwd)",target=/usr/src -it cpp-container`
+`docker run --mount type=bind,source="$(pwd)",target=/usr/src -it cpp-container`
+
+[![Build C++](https://github.com/SloaneTribble/GameDie/actions/workflows/actions.yml/badge.svg)](https://github.com/SloaneTribble/GameDie/actions/workflows/actions.yml)