For the nolok kart, use dedicated nitro textures

Author: Al2Klimov

data/gfx/nitro-nolok.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+<particles emitter="box" box_x="0.05" box_y="0.05" box_z="0.05">
+
+    <spreading angle="2"         />
+
+    <velocity  x="0.0"
+               y="0.0"
+               z="-0.003"         />
+
+    <material  file="nitro-particle-nolok.png"  />
+
+    <!-- Amount of particles emitted per second -->
+    <rate      min="600"
+               max="800"          />
+
+    <!-- Minimal and maximal lifetime of a particle, in milliseconds. -->
+    <lifetime  min="85"
+               max="120"           />
+
+    <!-- Size of the particles -->
+    <size      min="0.1"
+               max="0.25"
+               x-increase-factor="1.2"
+               y-increase-factor="1.2"
+               />
+
+    <color     min="255 255 255"
+               max="255 255 255"  />
+
+</particles>

data/gfx/nitro-smoke-nolok.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+<particles emitter="box" box_x="0.35" box_y="0.2" box_z="0.2">
+
+    <spreading angle="30"         />
+
+    <velocity  x="0.0"
+               y="0.0"
+               z="-0.006"         />
+
+    <material  file="smoke_nitro_nolok.png"  />
+
+    <!-- Amount of particles emitted per second -->
+    <rate      min="500"
+               max="800"          />
+
+    <!-- Minimal and maximal lifetime of a particle, in milliseconds. -->
+    <lifetime  min="100"
+               max="150"          />
+
+    <!-- Size of the particles -->
+    <size      min="0.20"
+               max="0.40"         />
+
+    <color     min="255 255 255"
+               max="255 255 255"  />
+
+</particles>

src/karts/kart_gfx.cpp

@@ -54,12 +54,25 @@ KartGFX::KartGFX(const AbstractKart *kart, bool is_day)
     scene::ISceneNode *node = m_kart->getNode();
     // Create nitro light
     core::vector3df location(0.0f, 0.5f, -0.5f*length - 0.05f);
+
+    bool is_nolok = m_kart->getIdent() == "nolok";
+
 #ifndef SERVER_ONLY
     if (!GUIEngine::isNoGraphics() && supportsLight())
     {
-        m_nitro_light = irr_driver->addLight(location, /*force*/ 0.4f,
-                                             /*radius*/ 5.0f, 0.0f, 0.4f, 1.0f,
-                                             false, node);
+        if (is_nolok)
+        {
+            m_nitro_light = irr_driver->addLight(location, /*force*/ 0.4f,
+                                                 /*radius*/ 5.0f, 1.0f, 0.0f, 0.4f,
+                                                 false, node);
+        }
+        else
+        {
+            m_nitro_light = irr_driver->addLight(location, /*force*/ 0.4f,
+                                                 /*radius*/ 5.0f, 0.0f, 0.4f, 1.0f,
+                                                 false, node);
+        }
+
         m_nitro_light->setVisible(false);
 #ifdef DEBUG
         m_nitro_light->setName( ("nitro emitter (" + m_kart->getIdent()
@@ -107,12 +120,15 @@ KartGFX::KartGFX(const AbstractKart *kart, bool is_day)
     if (!km->hasNitroEmitters())
         rear_nitro_right = rear_nitro_left = rear_nitro_center;
 
+    const char *nitro_xml = is_nolok ? "nitro-nolok.xml" : "nitro.xml";
+    const char *nitro_smoke_xml = is_nolok ? "nitro-smoke-nolok.xml" : "nitro-smoke.xml";
+
     // Create all effects. Note that they must be created
     // in the order of KartGFXType.
-    addEffect(KGFX_NITRO1,      "nitro.xml",       rear_nitro_right, true );
-    addEffect(KGFX_NITRO2,      "nitro.xml",       rear_nitro_left,  true );
-    addEffect(KGFX_NITROSMOKE1, "nitro-smoke.xml", rear_nitro_left,  false);
-    addEffect(KGFX_NITROSMOKE2, "nitro-smoke.xml", rear_nitro_right, false);
+    addEffect(KGFX_NITRO1,      nitro_xml,         rear_nitro_right, true );
+    addEffect(KGFX_NITRO2,      nitro_xml,         rear_nitro_left,  true );
+    addEffect(KGFX_NITROSMOKE1, nitro_smoke_xml,   rear_nitro_left,  false);
+    addEffect(KGFX_NITROSMOKE2, nitro_smoke_xml,   rear_nitro_right, false);
     addEffect(KGFX_ZIPPER,      "zipper_fire.xml", rear_center,      true );
     addEffect(KGFX_TERRAIN,     "smoke.xml",       Vec3(0, 0, 0),    false);
     addEffect(KGFX_SKID1L,      "skid1.xml",       rear_left,        true );