Don't call setLastTriggeredCheckline for check cannon

It will override the track check line

src/graphics/irr_driver.cpp

@@ -913,6 +913,8 @@ void IrrDriver::applyResolutionSettings()
     // above) - this happens dynamically when the tracks are loaded.
     GUIEngine::reshowCurrentScreen();
     MessageQueue::updatePosition();
+    // Preload the explosion effects (explode.png)
+    ParticleKindManager::get()->getParticles("explosion.xml");
 #endif   // !SERVER_ONLY
 }   // applyResolutionSettings
 

src/graphics/particle_kind.cpp

@@ -134,6 +134,8 @@ ParticleKind::ParticleKind(const std::string &file)
             delete xml;
             throw std::runtime_error("[ParticleKind] <material> tag has invalid 'file' attribute");
         }
+        // Preload textures
+        getMaterial();
     }
 
     // ------------------------------------------------------------------------

src/main.cpp

@@ -1461,6 +1461,8 @@ void initRest()
 
     race_manager->setTrack(UserConfigParams::m_last_track);
 
+    // Preload the explosion effects (explode.png)
+    ParticleKindManager::get()->getParticles("explosion.xml");
 }   // initRest
 
 //=============================================================================

src/tracks/check_cannon.hpp

@@ -62,7 +62,7 @@ public:
     virtual void trigger(unsigned int kart_index) OVERRIDE;
     virtual void changeDebugColor(bool is_active) OVERRIDE;
     virtual void update(float dt) OVERRIDE;
-
+    virtual bool triggeringCheckline() const { return false; }
     void addFlyable(Flyable *flyable);
     void removeFlyable(Flyable *flyable);
 };   // CheckLine

src/tracks/check_line.cpp

@@ -234,7 +234,7 @@ bool CheckLine::isTriggered(const Vec3 &old_pos, const Vec3 &new_pos,
         if (result)
         {
             LinearWorld* lw = dynamic_cast<LinearWorld*>(w);
-            if (lw != NULL)
+            if (triggeringCheckline() && lw != NULL)
                 lw->setLastTriggeredCheckline(kart_index, m_index);
         }
     }

src/tracks/check_line.hpp

@@ -86,6 +86,7 @@ public:
     virtual void reset(const Track &track);
     virtual void resetAfterKartMove(unsigned int kart_index);
     virtual void changeDebugColor(bool is_active);
+    virtual bool triggeringCheckline() const { return true; }
     // ------------------------------------------------------------------------
     /** Returns the actual line data for this checkpoint. */
     const core::line2df &getLine2D() const {return m_line;}