From 5af9ce44b1646873a1906e4fb154b3b186167eaa Mon Sep 17 00:00:00 2001
From: auria <auria@178a84e3-b1eb-0310-8ba1-8eac791a3b58>
Date: Sun, 30 Oct 2011 20:37:14 +0000
Subject: [PATCH] Add adjustable AI handicap in stk_config.xml

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@10066 178a84e3-b1eb-0310-8ba1-8eac791a3b58
---
 data/stk_config.xml                            | 3 +++
 src/config/stk_config.cpp                      | 9 ++++++++-
 src/config/stk_config.hpp                      | 3 +++
 src/karts/controller/default_ai_controller.cpp | 2 +-
 src/karts/controller/new_ai_controller.cpp     | 2 +-
 5 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/data/stk_config.xml b/data/stk_config.xml
index 98aeaf885..5dfeb582e 100644
--- a/data/stk_config.xml
+++ b/data/stk_config.xml
@@ -25,6 +25,9 @@
     <points from="5"        points="1"/>
   </grand-prix>
 
+  <!-- A value between 0 and 1, change this to handicap AIs -->
+  <ai acceleration="1.0"  />
+
   <!-- Time in follow-the-leader after which karts are removed.
        The last values applies for all remaining karts. 
        time-per-kart Additional time added to the interval
diff --git a/src/config/stk_config.cpp b/src/config/stk_config.cpp
index cb219d406..10b285ebc 100644
--- a/src/config/stk_config.cpp
+++ b/src/config/stk_config.cpp
@@ -160,6 +160,8 @@ void STKConfig::init_defaults()
     m_enable_networking        = true;
     m_smooth_normals           = false;
     m_same_powerup_mode        = POWERUP_MODE_ONLY_IF_SAME;
+    m_ai_acceleration          = 1.0f;
+    
     m_score_increase.clear();
     m_leader_intervals.clear();
     m_switch_items.clear();
@@ -227,7 +229,7 @@ void STKConfig::getAllData(const XMLNode * root)
     {
         physics_node->get("smooth-normals", &m_smooth_normals );
     }
-
+    
     if (const XMLNode *startup_node= root->getNode("startup"))
     {
         startup_node->get("penalty", &m_penalty_time );
@@ -324,6 +326,11 @@ void STKConfig::getAllData(const XMLNode * root)
         explosion_node->get("impulse-objects", &m_explosion_impulse_objects);
     }
 
+    if(const XMLNode *ai_node = root->getNode("ai"))
+    {
+        ai_node->get("acceleration", &m_ai_acceleration);
+    }
+    
     if(const XMLNode *networking_node= root->getNode("networking"))
         networking_node->get("enable", &m_enable_networking);
 
diff --git a/src/config/stk_config.hpp b/src/config/stk_config.hpp
index 56607ef35..faf273381 100644
--- a/src/config/stk_config.hpp
+++ b/src/config/stk_config.hpp
@@ -101,6 +101,9 @@ public:
                                          before it is ignored. */
     bool  m_enable_networking;
 
+    float m_ai_acceleration;         /**<Between 0 and 1, default being 1, can be
+                                         used to give a handicap to AIs */
+    
     std::vector<float>
           m_leader_intervals;        /**<Interval in follow the leader till
                                          last kart is reomved.               */
diff --git a/src/karts/controller/default_ai_controller.cpp b/src/karts/controller/default_ai_controller.cpp
index 00971dbe3..6df3675ec 100644
--- a/src/karts/controller/default_ai_controller.cpp
+++ b/src/karts/controller/default_ai_controller.cpp
@@ -689,7 +689,7 @@ void DefaultAIController::handleAcceleration( const float dt)
         }
     }
 
-    m_controls->m_accel = 1.0f;
+    m_controls->m_accel = stk_config->m_ai_acceleration;
 }   // handleAcceleration
 
 //-----------------------------------------------------------------------------
diff --git a/src/karts/controller/new_ai_controller.cpp b/src/karts/controller/new_ai_controller.cpp
index 352cf3468..ccbe0f879 100644
--- a/src/karts/controller/new_ai_controller.cpp
+++ b/src/karts/controller/new_ai_controller.cpp
@@ -546,7 +546,7 @@ void NewAIController::handleAcceleration( const float DELTA )
         }
     }
 
-    m_controls->m_accel = 1.0f;
+    m_controls->m_accel = stk_config->m_ai_acceleration;
 }   // handleAcceleration
 
 //-----------------------------------------------------------------------------