Adjust color of check lines according to state: active ones are

light red, inactive ones white-grey.


git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@6765 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/tracks/check_line.cpp

@@ -21,6 +21,8 @@
 
 #include <string>
 
+#include "irrlicht.h"
+
 #include "io/xml_node.hpp"
 #include "modes/world.hpp"
 #include "race/race_manager.hpp"
@@ -46,6 +48,7 @@ CheckLine::CheckLine(CheckManager *check_manager, const XMLNode &node,
     {
         video::SMaterial material;
         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+        material.setFlag(video::EMF_LIGHTING, false);
         material.MaterialType = video::EMT_TRANSPARENT_ADD_COLOR;
         scene::IMesh *mesh = irr_driver->createQuadMesh(&material, 
                                                         /*create mesh*/true);
@@ -101,6 +104,22 @@ void CheckLine::reset(const Track &track)
     }
 }   // reset
 
+// ----------------------------------------------------------------------------
+void CheckLine::changeDebugColor(bool is_active)
+{
+    assert(m_debug_node);
+
+    scene::IMesh *mesh         = m_debug_node->getMesh();
+    scene::IMeshBuffer *buffer = mesh->getMeshBuffer(0);
+    irr::video::S3DVertex* vertices 
+                               = (video::S3DVertex*)buffer->getVertices();
+    for(unsigned int i=0; i<4; i++)
+    {
+        vertices[i].Color = is_active ? video::SColor(0, 255, 0, 0)
+                                      : video::SColor(0, 128, 128, 128);
+    }
+}   // changeDebugColor
+
 // ----------------------------------------------------------------------------
 /** True if going from old_pos to new_pos crosses this checkline. This function
  *  is called from update (of the checkline structure).

src/tracks/check_line.hpp

@@ -69,6 +69,7 @@ public:
     virtual     ~CheckLine();
     virtual bool isTriggered(const Vec3 &old_pos, const Vec3 &new_pos, int indx);
     virtual void reset(const Track &track);
+    virtual void changeDebugColor(bool is_active);
     /** Returns the actual line data for this checkpoint. */
     const core::line2df &getLine2D() const {return m_line;}
 };   // CheckLine

src/tracks/check_structure.cpp

@@ -121,6 +121,10 @@ void CheckStructure::changeStatus(const std::vector<int> indices,
                                   int kart_index,
                                   ChangeState change_state)
 {
+    bool update_debug_colors = 
+        UserConfigParams::m_check_debug &&
+        kart_index==World::getWorld()->getPlayerKart(0)->getWorldKartId();
+
     for(unsigned int i=0; i<indices.size(); i++)
     {
         CheckStructure *cs = 
@@ -160,7 +164,10 @@ void CheckStructure::changeStatus(const std::vector<int> indices,
             }
             cs->m_is_active[kart_index] = !cs->m_is_active[kart_index]; 
         }   // switch
-
+        if(update_debug_colors)
+        {
+            cs->changeDebugColor(cs->m_is_active[kart_index]);
+        }
     }   // for i<indices.size()
 }   //changeStatus
 

src/tracks/check_structure.hpp

@@ -104,6 +104,7 @@ public:
                                unsigned int index);
     virtual    ~CheckStructure() {};
     virtual void update(float dt);
+    virtual void changeDebugColor(bool is_active) {}
     /** True if going from old_pos to new_pos crosses this checkline. This function
      *  is called from update (of the checkline structure).
      *  \param old_pos  Position in previous frame.
@@ -117,6 +118,7 @@ public:
 
     /** Returns the type of this check structure. */
     CheckType getType() const { return m_check_type; }
+
 };   // CheckStructure
 
 #endif