Now skidding's particle are just under wheels

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@12921 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/karts/abstract_kart.cpp

@@ -53,6 +53,7 @@ AbstractKart::AbstractKart(const std::string& ident,
     m_kart_width  = m_kart_model->getWidth();
     m_kart_height = m_kart_model->getHeight();
     m_kart_length = m_kart_model->getLength();
+    m_wheel_graphics_position = m_kart_model->getWheelsGraphicsPosition();
 }   // AbstractKart
 
 // ----------------------------------------------------------------------------

src/karts/abstract_kart.hpp

@@ -51,6 +51,8 @@ private:
     float m_kart_width;
     /** Height of the kart, copy of the data from KartModel. */
     float m_kart_height;
+    /** The position of all four wheels in the 3d model */
+    const Vec3* m_wheel_graphics_position;
 
     /** Index of kart in world. */
     unsigned int m_world_kart_id;
@@ -147,6 +149,12 @@ public:
     // ------------------------------------------------------------------------
     /** Returns true if this kart has no wheels. */
     bool isWheeless() const;
+    // ------------------------------------------------------------------------
+    /** Returns the position of a wheel relative to the kart.
+     *  \param i Index of the wheel: 0=front right, 1 = front left, 2 = rear
+     *           right, 3 = rear left.  */
+    const Vec3& getWheelGraphicsPosition(int i) const
+                {assert(i>=0 && i<4); return m_wheel_graphics_position[i];}
 
     // ========================================================================
     // Emergency animation related functions.

src/karts/kart_gfx.cpp

@@ -40,12 +40,18 @@ KartGFX::KartGFX(const AbstractKart *kart)
     }
 
     m_kart = kart;
-
+    /*
+    // FIXME Old Positioning system Maybe usefull for another effect
     Vec3 rear_left(-(kart->getKartWidth()+0.20f)*0.35f, (kart->getKartHeight()-0.6f)*0.35f,
                        -kart->getKartLength()*0.35f);
 
     Vec3 rear_right((kart->getKartWidth()+0.20f)*0.35f, (kart->getKartHeight()-0.6f)*0.35f,
                        -kart->getKartLength()*0.35f);
+    */
+    Vec3 rear_left(kart->getWheelGraphicsPosition(3).toIrrVector().X, (kart->getKartHeight()-0.6f)*0.35f,
+                        kart->getWheelGraphicsPosition(3).toIrrVector().Z);
+    Vec3 rear_right(kart->getWheelGraphicsPosition(2).toIrrVector().X, (kart->getKartHeight()-0.6f)*0.35f,
+                        kart->getWheelGraphicsPosition(2).toIrrVector().Z);
 
     Vec3 rear_center(0, kart->getKartHeight()*0.35f,
                        -kart->getKartLength()*0.35f);

src/karts/kart_model.hpp

@@ -181,6 +181,11 @@ public:
     const Vec3& getWheelGraphicsPosition(int i) const
                 {assert(i>=0 && i<4); return m_wheel_graphics_position[i];}
     // ------------------------------------------------------------------------
+    /** Returns the position of wheels relative to the kart.
+     */
+    const Vec3* getWheelsGraphicsPosition() const
+                {return m_wheel_graphics_position;}
+    // ------------------------------------------------------------------------
     /** Returns the position of a wheel relative to the kart for the physics.
      *  The physics wheels can be attached at a different place to make the
      *  karts more stable.