From 001f1d11e977d5586fe8496821b3a1e4bf76f10c Mon Sep 17 00:00:00 2001
From: manuel <manuel@mausz.at>
Date: Thu, 14 Apr 2011 20:37:53 +0200
Subject: place actors at random positions

---
 pacman-c++/util.cpp | 60 +++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 51 insertions(+), 9 deletions(-)

(limited to 'pacman-c++/util.cpp')

diff --git a/pacman-c++/util.cpp b/pacman-c++/util.cpp
index eaf18e4..31d2e79 100644
--- a/pacman-c++/util.cpp
+++ b/pacman-c++/util.cpp
@@ -33,7 +33,6 @@ namespace Util
     delete[] map;
   }
 
-  // temporary
   Transmission::map_t createDemoMap()
   {
     Transmission::map_t map = createEmptyMap();
@@ -67,19 +66,64 @@ namespace Util
         if (tmpl[y][x] == '#')
           cur |= Color::none | Transmission::block;
         /* this is a simple hack to create areas where no
-         * autoplaced points will be placed (see below)
+         * autoplaced points/actors will be placed (see makePoints)
          */
         else if (tmpl[y][x] == '.')
           cur |= Transmission::point;
       }
     }
+    return map;
+  }
+
+  void placeActors(Transmission::map_t map, unsigned int players, const Color::Color *colors)
+  {
+    int mindistance = 5;
+    /* this outer loop is used if there are no more valid places left
+     * so we can change mindistance
+     */
+    for(unsigned int i = 0; i < players; ++i)
+    {
+      /* get list of valid positions */
+      QList<QPoint> validpos;
+      for (unsigned int x = 0; x < Constants::map_size.width; ++x)
+      {
+        for (unsigned int y = 0; y < Constants::map_size.height; ++y)
+        {
+          Transmission::field_t &cur = map[x][y];
+          if (cur == Transmission::none)
+            validpos.append(QPoint(x, y));
+        }
+      }
+
+      /* place actors at map */
+      for(i = 0; i < players; ++i)
+      {
+        int rand = (int) (validpos.size() * (qrand() / (RAND_MAX + 1.0)));
+        QPoint newpos = validpos.at(rand);
+        map[newpos.x()][newpos.y()] = colors[i] | Transmission::pacman | Transmission::direction_none;
+        validpos.removeAt(rand);
 
-    map[0][0] |= Transmission::bonuspoint;
-    map[1][0] |= Color::red      | Transmission::pacman | Transmission::direction_right;
-    //map[23][0] = Color::blue   | Transmission::pacman | Transmission::direction_none;
-    //map[24][0] = Color::green  | Transmission::pacman | Transmission::direction_none;
-    //map[25][0] = Color::yellow | Transmission::pacman | Transmission::direction_none;
+        QMutableListIterator<QPoint> j(validpos);
+        while(j.hasNext())
+        {
+          j.next();
+          QPoint tmp = j.value() - newpos;
+          if (tmp.manhattanLength() < mindistance)
+            j.remove();
+        }
 
+        if (validpos.empty())
+        {
+          qWarning() << "There are no more valid positions for actors left on the map";
+          mindistance -= 2;
+          break;
+        }
+      }
+    }
+  }
+
+  void makePoints(Transmission::map_t map)
+  {
     /* auto place normal points*/
     for (unsigned int x = 0; x < Constants::map_size.width; ++x)
     {
@@ -92,8 +136,6 @@ namespace Util
           cur = Transmission::none;
       }
     }
-
-    return map;
   }
 
   Transmission::field_t actorMovementToTransmission(Actor::Movement mov, Transmission::field_t def)
-- 
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