stk-code_catmod/data/stk_config.xml

<?xml version="1.0"?>

<config>
  <!--  Minimum and maximum kart versions that can be used by this binary.
        Older version will be ignored. -->
  <kart-version min="2" max="2"/>

  <!-- Minimum and maxium track versions that be be read by this binary.
       Older versions will be ignored. -->
  <track-version min="3" max="5"/>

  <!-- Maximum number of karts to be used at the same time. This limit
       can easily be increased, but some tracks might not have valid start
       positions for those additional karts. -->
  <karts max-number="20"/>

  <!-- Scores are the number of points given when the race ends, 
       order is most-points-first or most-points-last. -->
  <grand-prix order = "most-points-first">
    <!-- Karts on position 1 and 2 will have 3 more points than the next kart;
         a kart on position 3 and 4 will have two more points than the next;
         and all remaining karts will have one more point than the next. -->
    <points from="1" to="2" points="3"/>
    <points from="3" to="4" points="2"/>
    <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
       for each kart in the race. -->
  <follow-the-leader intervals="30 20 10"
                     time-per-kart="1.5"  />

  <!-- Startup information. 
       Penalty: Penalty time if a kart accelerates before GO. -->
  <startup penalty="1" />

  <!-- How often a news message is going to be displayed before
       it will be ignored. -->
  <news max-display="10"/>

  <!-- If the normals (for wheel raycasts) should be smoothened -->
  <physics smooth-normals="false"/>

  <!-- The title music. -->
  <music title="main_theme.music"/>

  <!-- Mostly for debugging: maximum number of history entries -->
  <history max-frames="10000"/>

  <!--  Replay related values, mostly concerned with saving less data
        and using interpolation instead.
        delta-t Minumum time between saving consecutive transform events.
        delta-pos If the interpolated position is within this delta, a
                transform event is not generated.
        delta-angle If the interpolated angle is within this delta,
                a transform event is not generated. -->
  <replay delta-t="0.05"  delta-pos="0.1" delta-angle="0.5" />

  <!-- Skidmark data: maximum number of skid marks, and
       time for skidmarks to fade out. -->
  <skid-marks max-number="100"  fadeout-time="60"/>   
 
  <!-- Defines when the upright constraint should be acctive, it's
       disabled when the kart is more than this value from the track. -->
  <near-ground distance="2"/> 

  <!-- How long the end animation will be shown. -->
  <delay-finish time="0.5"/>

  <!-- How long the music credits are shown. -->
  <credits music="10"/>

  <!-- weight is the additional weight an anvil adds to a kart.
       speed-factor is the additional slowdown caused by the anvil.
       time is the time an anvil is active. -->
  <anvil time="2.0" weight="150"  speed-factor="0.2"/>

  <!-- friction is the friction increase when a parachute is attached.
       time is the time an attached parachute is active
       time-other is the time a parachute attached from other kart works
       done-fraction is the fraction of speed when lost will detach parachute -->
  <parachute friction="2.0" time="4.0" time-other="8.0" done-fraction="0.7"/>

  <!-- time is the time till a bomb explodes. time-increase is the time added 
       to timer when bomb is passed on. -->
  <bomb time="30.0" time-increase="-5.0"/>

  <!-- Powerup collect-mode decides what is collected if a kart has already an 
       powerup: same: get one more item of the same type.
                new:  always get a new item.
                only-if-same: if the random item is the same one as the
                      one currently owned, increase the number, otherwise
                      no more/new item s are given to the kart. -->
  <powerup collect-mode="new"/>
  <!-- time: How long a switch is being effective.
       items for each item list the index of the item it is switched with.
             Order: giftbox, banana, big-nitro, small-nitro, bubble-bum, trigger -->
  <switch time="5"  items="1 0 4 4 2 5"/>

  <!-- How often bubble gum get driven over before it disappears. --> 
  <bubble-gum disappear-counter="1"/>

  <!-- explosion-impulse-objects is the impulse that pushes physical objects
       away if there is an explosion. -->
  <explosion impulse-objects="500.0" />

  <!-- Networking - the current networking code is outdated and will not
      work anymore - so for now don't enable this. -->
  <networking enable="false"/>

  <!-- Default values for all karts
       ============================ -->
  <general-kart-defaults>
  
    <!-- Camera: Distance between kart and camera. 
         forward-up-angle: Angle between camera and plane of kart (pitch) 
                 when the camera is pointing forward
         backward-up-angke: Angle between camera and plane of kart (pitch)
                 when the camera is pointing backwards. This is usually 
                 larger than the forward-up-angle, since the kart itself
                 otherwise obstricts too much of the view.  -->
    <camera distance="1.5" forward-up-angle="15"
            backward-up-angle="30"/>

    <!-- If a kart starts within the specified time after 'go',
         it receives the corresponding bonus from 'boost'. Those
         fields must have the same size, and must be sorted by
         increasing times. -->
    <startup time   = "0.3 0.5"
             boost  = "6 3"  />

    <!-- Rescue: time: How long it takes the kart to be raised.
         height: how height the kart will be raised before it is
         dropped back onto the track. 
         vert rescue offset: used to raise karts a bit higher before
         releasing them on the ground after a rescue. Used to avoid
         resetting karts into the track. Not sure if this is still
         necessary. -->
    <rescue vert-offset="0.0" time="1.2" height="2"/>

    <!-- Nitro: power-boost: increase in engine power, i.e. 1=plus 100%
         consumption: nitro consumption - heavier characters can be set
         to need more nitro than lighter character.
         small-container: how much energy a small container gives.
         big-container: how much energy a big container gives. 
         max-speed-increase: How much the speed of a kart might exceed
         its maximum speed (in m/s). 
         duration: How long the increased speed will be valid after
         the kart stops using nitro (and the fade-out-time starts).
         fade-out-time: Duration during which the increased maximum
         speed due to nitro fades out.  -->
    <nitro power-boost="3" consumption="1" small-container="1" big-container="3"
           max-speed-increase="5" duration="1" fade-out-time="2"/>

    <!-- time is the time a zipper is active. force is the additional 
         zipper force. speed-gain is the one time additional speed.
         max-speed-increase is the additional speed allowed on top
         of the kart-specific maximum kart speed. Fade-out time determines
         how long it takes for a zipper to fade out (after 'time').  -->
    <zipper time="3.5" force="250.0" speed-gain="4.5" max-speed-increase="15"
            fade-out-time="1.0"  />

    <!-- Skidding: increase: multiplicative increase of skidding factor in each frame.
         decrease: multiplicative decrease of skidding factor in each frame.
         max: maximum skidding factor = maximum increase of steering angle.
         time-till-max: Time till maximum skidding is reached.
         visual: Additional graphical rotation of kart.
         visual-time: How long it takes for the visual skid to reach maximum.
         angular-velocity: Angular velocity to be used for the kart when skidding.
         time-till-bonus: How long a kart needs to skid in order to get a bonus.
         bonus-force: A speedup applied to the kart whick skidded for a while.
         bonus-time: How long the bonus-force is applied.
         post-skid-rotate-factor: a factor to be used to determine how much 
           the chassis of a kart should rotate to match the graphical view. 
           A factor of 1 is identical, a smaller factor will rotate the kart
           less (which might  feel better).   
         reduce-turn: A factor that's multiplied to the steering when skidding,
           which is used to reduce the turn angle  used to reduce the turn angle. -->
    <skid increase="1.05" decrease="0.95" max="2.5" time-till-max="0.5"
          visual="1.0" visual-time="0"
          time-till-bonus="1.5 2.5" 
          bonus-speed="100 200" bonus-time="3.0 4.0" 
          post-skid-rotate-factor="1" reduce-turn-min="0.3"
          reduce-turn-max="0.8"/>

    <!-- Slipstream: length: How far behind a kart slipstream works
         collect-time: How many seconds of sstream give  maximum benefit
         use-time: How long the benefit will last.
         add-power: Additional power due to sstreaming. 1 = +100%
         min-speed: Minimum speed necessary for slipstream to take effect. 
         max-speed-increase: How much the speed of the kart might exceed
         its normal maximum speed.
         duration: How long the higher speed lasts after slipstream stopped
         working.
         fade-out-time: How long the slip stream speed increase will 
         gradually be reduced.  -->
    <slipstream length="10" collect-time="2" use-time="5"
                add-power="3" min-speed="10"
                max-speed-increase="5" duration="1" fade-out-time="2"/>

    <!-- Kart-specific settings for the swatter:
         duration: how long can the swatter be active.
         distance: How close a kart or an item must be before it can be hit.
         squash-duration: How long a kart will remain squashed.
         squash-slowdown: percentage of max speed that a kart is
                 restricted to.  -->
    <swatter duration="10" distance="3" squash-duration="5" 
             squash-slowdown="0.5"/>

    <!-- turn-speed and turn-radius define the turn radius of the kart at
         the given speed. The actual steering  angle is dependent on the
         wheel base of the kart: radius = wheel_base/sin(steering_angle).
         The values below define that at speed 0 the turn radius is 3, at
         speed 10 (and up to 25 then) the radius is 15 etc.
         The actual turn radius is piece-wise linearly interpolated. This
         allows for tighter turning at lower speeds, and also avoids that
         the kart becomes too hard to control at high speed (speeds of higher
         than 23 can only be reached with powerups).
         time-full-steer is the time when a player's input goes from neutral
                         steering to extreme left or right.
         time-full-steer-ai is the time for the AI to go from neutral steering to
                         extreme left (or right). This can be used to reduce 
                         'shaking' of AI karts caused by changing steering direction
                         too often. It also helps with making it easier to push the
                         AI karts (otherwise micro-corrections make this nearly
                         impossible). A value of 1/maxFPS / 2 will guarantee that
                         the wheel can go from -1 to +1 steering in one frame, 
                         basically  disabling this mechanism.       -->
    <turn turn-speed= "0 10 25 45"
          turn-radius="2.6 12.5 15 25"
          time-full-steer ="0.2" time-full-steer-ai="0.1"    />

    <!-- Speed and acceleration related values: power and max-speed (in m/s) 
         have 3 values, one for low, medium, and hard.
         brake-factor: Value used when braking. max-speed-reverse-ratio is
         the percentage of max speed for reverse gear. -->
    <engine power="400 450 500"  max-speed="15 20 23" brake-factor="11.0"
            max-speed-reverse-ratio="0.3"/>

    <!-- Simulated gears: switch-ratio defines at what ratio of the maximum
         speed what gear is selected, e.g. 0.25 means that if the speed is
         bigger or equal to 0.25 x maxSpeed then use gear 1, 0.5 means if 
         the speed is bigger or equal to 0.5 x maxSpeed then gear 2.
         gear-power-increase contains the increase in max power (to simulate
         different gears), e.g. 2.5 as first entry means: 2.5*maxPower in gear 1
         | first  | second |  third | . -->
    <gear switch-ratio="0.25 0.7 1.0" power-increase="2.2 1.7 1.3"/>

    <!-- mass  -->
    <mass value="225"/>

    <!-- Suspension related values. stiffness: kart's suspension stiffness.
         rest: Length of suspension when at rest. 
         travel-cm: maximum movement of suspension - in cm!! 
         exp-string-response: dampen the suspension spring reaction 
            exponentially.
         max-force: Maximum suspension force -->
    <suspension stiffness="248" rest="0.2" travel-cm="19"
         exp-spring-response="false" max-force="12000"/>

    <!-- Wheel related parameters: damping-relaxation/compression: for
         bullet, damping parameters. Radius and width of wheel.
         front-right, front-left, rear-right and rear-left give the 
         position of the physics raycast wheels relative to the center of
         gravity. Default is to use the corners of the chassis to attach 
         the wheels to. -->
    <wheels damping-relaxation="20"  damping-compression="4.4" radius="0.25">
      <front-right position="0.38 0 0.6"  />
      <front-left  position="-0.38 0 0.6" />
      <rear-right  position="0.38 0 -0.6" />
      <rear-left   position="-0.38 0 -0.6"/>
    </wheels>

    <!-- friction: slip used for bullet skidding. A high value 
         (like 10000000) disables bullet skidding. -->
    <friction slip="10000000"/>

    <!-- Values related to stability of the chassis: damping, and reduced
         impact of roll. 
         downward-impulse-factor: A speed proportional impulse applied each
           frame that pushes the vehicle onto the ground. 
         track-connection-accel: An artificial force that pulls a wheel to
           the ground if its off ground. Reduces the affect if a kart loses
           contact with the ground (i.e. it then can't steer or accelerate
           anymore). -->
    <stability roll-influence="0.03"
               chassis-linear-damping="0.2"
               chassis-angular-damping="0"
               downward-impulse-factor="0"
               track-connection-accel="2"/>

    <!-- Parameters for the upright constraint, which keeps karts upright. -->
    <upright tolerance="0.2" max-force="30"/>

    <!-- collision
         impulse: an additional impulse to be applied in a non-frontal
           collision to push two karts away from each other.
         impulse-time: The impulse will be applied over a certain time
           period, which results in less abrupt changes. If set to 0,
           the impulse is only applied once.
         resitution: restitution value to be used for the kart rigid bodies.
         side-impulse: an additional (artificial) impulse that
           pushes the slower kart out of the way of the faster karts (i.e. 
           sideways to the faster kart) when a collision happens. This is 
           for now disabled since it needs tuning and additionally has the
           problem that the amount of push a hit kart receives depends on
           the orientation - if a kart is pushed in the direction it is 
           driving, it will be more (no friction from tires), while when 
           pushed to the side, hardly anything happens. 
         bevel-factor: for each point of the chassis collision box one 
           additional point is added, resulting in a bevelled box shape.
           The original Z coordinate of the chassis is multiplied by 
           1-bevelZ (i.e. the main box part of the shape is shortened).
           The bevel point has the original Z coordinate, and the X and 
           Y coordinates of the box are multiplied with (1-bevelX) and 
           (1-bevelY).  A value of 0 for all bevel coordinates disables
           bevelling, and uses a simple box shape.
           As an example, a value of 1 for x and z will result in a 
           sharp 'arrow' like shape.  -->
    <collision impulse="5000" impulse-time="0.1" terrain-impulse="8000"
               restitution="1.0" bevel-factor="0.5 0.0 0.5" />

    <!-- Kart-specific plunger and rubber band handling: max-length is
         the maximum length of rubber band before it snaps. force is
         the force a plunger/rubber band applies to the kart(s).
         duration is the duration a rubber band acts. -->
    <plunger band-max-length="50" band-force="1500" band-duration="1"
          band-speed-increase="7" band-fade-out-time="3"
          in-face-time="4 6 7"/>

    <!-- Kart-specific explosion parameters. 
         Time: how long it takes before the kart can drive again (this
               determines how height the kart is being thrown).
         Invulnerability-time: how long a kart will be invulnerable
               after being hit by an explosion.
         radius: Kart closer to this value will be affected by
               an explosion as well.  -->
    <explosion time="2" radius="5" 
         invulnerability-time="6" />

    <!-- Kart-specific settings used by the AI.
         steering-variation: make each kart steer towards slightly
         different driveline points, so that AI don't create trains.
         Maximum value should be 1 (steer towards left/right side 
         of driveline), 0 means exactly towards quad center point.
         Depending on kart id karts will aim at different points.-->
    <ai steering-variation="0.0"  />
    
  </general-kart-defaults>
</config>