Started implementing the 'max number of karts' track parameter as per the todo ticket in the tracker. The count is read but not yet enforced. The values I added in the track files are very approximative and not tested. Ideally the track exporter should generate this field

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@5728 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/tracks/track.cpp

@@ -81,6 +81,7 @@ Track::Track(std::string filename)
     m_start_angle          = 0;
     m_sky_dx               = 0.05f;
     m_sky_dy               = 0.0f;
+    m_max_kart_count       = 8;
     m_start_transform.setIdentity();
     loadTrackInfo();
 }   // Track
@@ -265,6 +266,9 @@ void Track::loadTrackInfo()
     root->get("gravity",               &m_gravity);
     root->get("arena",                 &m_is_arena);
     root->get("groups",                &m_groups);
+    
+    root->get("maxKartCount",          &m_max_kart_count);
+        
     for(unsigned int i=0; i<root->getNumNodes(); i++)
     {
         const XMLNode *mode=root->getNode(i);

src/tracks/track.hpp

@@ -155,6 +155,9 @@ private:
     /** List of all modes for a track. */
     std::vector<TrackMode> m_all_modes;
 
+    /** Maximum number of karts that this track can sustain without them starting off-track */
+    int m_max_kart_count;
+    
     /** Name of the track to display. */
     irr::core::stringw  m_name;
     bool                m_use_fog;
@@ -294,6 +297,10 @@ public:
     const Vec3 &getStartPosition(unsigned int i) {return m_start_positions[i];}
     /** Returns the heading of the i-th. start position. */
     const float getStartHeading(unsigned int i) {return m_start_heading[i]; }
+    
+    /** \return the maximum number of karts that this track can sustain without them starting off-track */
+    int getMaxKartCount() const { return m_max_kart_count; }
+    
 };   // class Track
 
 #endif