From e7383cc38bf2182e5ab95f30d639fe4a0317fd51 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Tue, 5 Sep 2017 22:43:38 -0400
Subject: Implement bonus division

---
 src/dice.js   | 9 +++++++++
 src/lexer.js  | 1 +
 src/parser.js | 1 +
 3 files changed, 11 insertions(+)

(limited to 'src')

diff --git a/src/dice.js b/src/dice.js
index 6351929..0197f25 100644
--- a/src/dice.js
+++ b/src/dice.js
@@ -81,6 +81,14 @@ const bonusMultiply = (die1, die2) => {
   }
 }
 
+const bonusDivide = (die1, die2) => {
+  return () => {
+    return die1().map(die => {
+      return () => Math.floor(die() / roll(die2))
+    })
+  }
+}
+
 const explode = (comparison, die1, die2) => {
   return () => {
     const explodeOn = roll(die1)
@@ -225,6 +233,7 @@ exports.divide = divide
 exports.bonusAdd = bonusAdd
 exports.bonusSubtract = bonusSubtract
 exports.bonusMultiply = bonusMultiply
+exports.bonusDivide = bonusDivide
 exports.negative = negative
 exports.explodeAbove = explodeAbove
 exports.explodeUnder = explodeUnder
diff --git a/src/lexer.js b/src/lexer.js
index e700f87..6b75129 100644
--- a/src/lexer.js
+++ b/src/lexer.js
@@ -23,6 +23,7 @@ newLexemeType('bigDivide', ' / ')
 newLexemeType('plus', '\\+')
 newLexemeType('minus', '-')
 newLexemeType('times', '\\*')
+newLexemeType('divide', '/')
 newLexemeType('(', '\\(')
 newLexemeType(')', '\\)')
 newLexemeType('E', 'E')
diff --git a/src/parser.js b/src/parser.js
index 54dc0ae..acae9ad 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -76,6 +76,7 @@ newInfix('bigDivide', 23, { type: 'divide' })
 newInfix('plus', 25, { type: 'bonusAdd' })
 newInfix('minus', 25, { type: 'bonusSubtract' })
 newInfix('times', 26, { type: 'bonusMultiply' })
+newInfix('divide', 26, { type: 'bonusDivide' })
 newSymbol('minus', (parser) => {
   return {
     type: 'negative',
-- 
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