1 files changed, 22 insertions, 11 deletions
diff --git a/labb5/src/Boggle.cpp b/labb5/src/Boggle.cpp
index 5bec889..7eb37e8 100755
--- a/labb5/src/Boggle.cpp
+++ b/labb5/src/Boggle.cpp
@@ -4,14 +4,15 @@
 // Also remove these comments here and add your own.
 // TODO: remove this comment header and replace it with your own
 
-#include <sstream>
-#include <iostream>
 #include "Boggle.h"
+
+#include <algorithm>
+#include <chrono>
+#include <iostream>
+#include <sstream>
 #include "random.h"
 #include "shuffle.h"
 #include "strlib.h"
-#include <chrono>
-#include <algorithm>
 
 static const int NUM_CUBES = 16;    // the number of cubes in the game
 static const int CUBE_SIDES = 6;    // the number of sides on each cube
@@ -22,6 +23,12 @@ static string CUBES[NUM_CUBES] = {  // the letters on all 6 sides of every cube
     "EIOSST", "ELRTTY", "HIMNQU", "HLNNRZ"
 };
 
+/*
+ * Find all immediate neighbours (including diagonally).
+ *
+ * Only returns points where x is in [0, w) and y is in [0, h).
+ * Additionally, points in visited are ignored.
+ */
 vector<point> neighbours_in_range_filt(const point& p, int width, int height, const set<point>& visited) {
     int x, y;
     tie(x, y) = p;
@@ -39,6 +46,17 @@ vector<point> neighbours_in_range_filt(const point& p, int width, int height, co
     return res;
 }
 
+/*
+ * Return wether word starts with prefix.
+ */
+// There is a string::starts_with in C++20.
+bool prefix_matches(const string& prefix, const string& word) {
+    for (int i = 0; i < prefix.length(); i++) {
+        if (prefix[i] != word[i]) return false;
+    }
+    return true;
+}
+
 Boggle::Boggle() {
     board = Grid<char>(4, 4);
     dictionary = Lexicon(DICTIONARY_FILE);
@@ -108,13 +126,6 @@ bool Boggle::find_single_word(const string& word) const {
     return found;
 }
 
-bool prefix_matches(const string& prefix, const string& word) {
-    for (int i = 0; i < prefix.length(); i++) {
-        if (prefix[i] != word[i]) return false;
-    }
-    return true;
-}
-
 bool Boggle::find_single_word_helper(const string& word, point cur_point, string cur_word, set<point> visited) const {
     if (cur_word == word && dictionary.contains(cur_word)) {
         return true;