[gbrainy/new-games] Two men puzzle more random

[Jordi Mas <jmas src gnome org>]

commit 8b99125d341907f9876dee37f4b36b62d0dd79d4
Author: Jordi Mas <jmas softcatala org>
Date:   Mon Mar 12 20:46:06 2018 +0100

    Two men puzzle more random

 data/games.xml |   32 ++++++++++++++++++++++++--------
 1 files changed, 24 insertions(+), 8 deletions(-)
---
diff --git a/data/games.xml b/data/games.xml
index f89166e..8e69301 100644
--- a/data/games.xml
+++ b/data/games.xml
@@ -810,27 +810,43 @@
                <type>Logic</type>
                <difficulty>All</difficulty>
                <answer_checkattributes>MultiOption | IgnoreSpaces</answer_checkattributes>
-                       <!-- Translators: Adapt 'feet' to the right unit of length for your locale. -->
-               <_question>Two men starting at the same point walk in opposite directions for 4 feet. Both 
turn left and walk another 3 feet. What is the distance between them? [option_answers]</_question>
+               <variables>
+                               int [] dists_a = new int [] {3, 8, 12};
+                               int [] dists_b = new int [] {4, 6, 9};
+                               int [] dists_c = new int [] {5, 10, 15};
+
+                               int index = random.Next (dists_a.Length);
+                               int dist_a = dists_a[index];
+                               int dist_b = dists_b[index];
+
+                               int answer_a = dists_c[index];
+                               int answer_b = dists_c[index] + 2 + random.Next (10);
+                               int answer_c = answer_b + 2 + random.Next (5); // Based on answer_b to avoid 
duplicated answers
+                               int answer_d = dists_c[index] - 2;
+               </variables>
+
+               <!-- Translators: Adapt 'feet' to the right unit of length for your locale. -->
+               <_question>Two men starting at the same point walk in opposite directions for [dist_a] feet. 
Both turn left and walk another [dist_b] feet. What is the distance between them? [option_answers]</_question>
+
                <string _text = "Choose one of the following:" x = "0.1" y = "0.15" size = "large"/>
 
                        <option x = "0.3" y = "0.3" width ="0.45" height ="0.1" order ="randomized" correct = 
"yes">
-                               <string text = "[option_prefix] 10"  x = "0.05"  y = "0.02" size = "large"/>
+                               <string text = "[option_prefix] [answer_a]"  x = "0.05"  y = "0.02" size = 
"large"/>
                        </option>
 
                        <option x = "0.3" y = "0.4" width ="0.45" height ="0.1" order ="randomized">
-                               <string text = "[option_prefix] 5" x = "0.05" y = "0.02" size = "large"/>
+                               <string text = "[option_prefix] [answer_b]" x = "0.05" y = "0.02" size = 
"large"/>
                        </option>
 
                        <option x = "0.3" y = "0.5" width ="0.45" height ="0.1" order ="randomized">
-                               <string text = "[option_prefix] 15" x = "0.05" y = "0.02" size = "large"/>
+                               <string text = "[option_prefix] [answer_c]" x = "0.05" y = "0.02" size = 
"large"/>
                        </option>
 
                        <option x = "0.3" y = "0.6" width ="0.45" height ="0.1" order ="randomized">
-                               <string text = "[option_prefix] 3" x = "0.05" y = "0.02" size = "large"/>
+                               <string text = "[option_prefix] [answer_d]" x = "0.05" y = "0.02" size = 
"large"/>
                        </option>
-        <_rationale>Using the Pythagorean theorem, the solution is 2 by the square root of (4^2 + 3^2). 
</_rationale>
-               <answer>10</answer>
+        <_rationale>Using the Pythagorean theorem, the solution is 2 by the square root of ([dist_a]^2 + 
[dist_b]^2). </_rationale>
+               <answer>[answer_a]</answer>
        </game>
 
 </games>