From 9e1afc89eee47db03df65d541da6f64b69181184 Mon Sep 17 00:00:00 2001
From: samuncle <sam.un@protonmail.com>
Date: Sun, 22 Jan 2017 23:20:07 -0500
Subject: [PATCH] Add a permanant exhaust to the kart, tweaking needed

---
 data/gfx/kart_exhaust.xml | 33 +++++++++++++++++++++++++++++++++
 src/karts/kart_gfx.cpp    |  8 ++++++++
 src/karts/kart_gfx.hpp    |  2 ++
 3 files changed, 43 insertions(+)
 create mode 100644 data/gfx/kart_exhaust.xml

diff --git a/data/gfx/kart_exhaust.xml b/data/gfx/kart_exhaust.xml
new file mode 100644
index 000000000..32dd35fc7
--- /dev/null
+++ b/data/gfx/kart_exhaust.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+<particles emitter="box" box_x="0.05" box_y="0.05" box_z="0.60">
+
+    <spreading angle="2"         />
+    
+    <velocity  x="0.0"
+               y="0.0"
+               z="-0.003"         />
+    
+    <material  file="smoke_black.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"  />
+    
+    <!-- How much time in milliseconds before the particle is fully faded out  -->
+    <fadeout   time="50"         />
+
+</particles>
diff --git a/src/karts/kart_gfx.cpp b/src/karts/kart_gfx.cpp
index 59d5ceffe..00b04d56c 100644
--- a/src/karts/kart_gfx.cpp
+++ b/src/karts/kart_gfx.cpp
@@ -138,6 +138,10 @@ KartGFX::KartGFX(const AbstractKart *kart, RaceManager::KartType type, bool is_d
     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_EXHAUST1,    "kart_exhaust.xml",rear_nitro_right, false );
+    addEffect(KGFX_EXHAUST2,    "kart_exhaust.xml",rear_nitro_left,  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 );
@@ -436,6 +440,10 @@ void KartGFX::updateNitroGraphics(float nitro_frac)
         setCreationRateAbsolute(KartGFX::KGFX_NITROSMOKE2, 0);
         m_nitro_light->setVisible(false);
     }
+    
+    // Exhaust is always emitting
+    setCreationRateRelative(KartGFX::KGFX_EXHAUST1, 1.0);
+    setCreationRateRelative(KartGFX::KGFX_EXHAUST2, 1.0);
 #endif
 }  // updateGraphics
 
diff --git a/src/karts/kart_gfx.hpp b/src/karts/kart_gfx.hpp
index efabccac5..68f92d336 100644
--- a/src/karts/kart_gfx.hpp
+++ b/src/karts/kart_gfx.hpp
@@ -50,6 +50,8 @@ public:
                        KGFX_NITRO2,
                        KGFX_NITROSMOKE1,
                        KGFX_NITROSMOKE2,
+                       KGFX_EXHAUST1,
+                       KGFX_EXHAUST2,
                        KGFX_ZIPPER,
                        KGFX_TERRAIN,
                        KGFX_SKIDL,