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Introduce a factor for when the lakes are frozen over and use it to alter the fricton factor, bumpiness and load resistance factor

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This commit is contained in:
Erik Hofman 2021-12-21 10:30:30 +01:00
parent 612dff2ea1
commit 1269a8d27c
1 changed files with 16 additions and 3 deletions
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19
simgear/bvh/BVHMaterial.hxx
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@ -37,11 +37,20 @@ public:
bool get_solid () const {
return _solid_is_prop ? _solid_property->getBoolValue() : _solid;
}
/**
* Return the solid factor for when the lakes are frozen over or not.
*/
double get_frozen_fact () const {
return _solid_is_prop ? (_solid_property->getBoolValue() ? 0.1 : 1.) : 1.;
}
/**
* Get the friction factor for that material
*/
double get_friction_factor () const { return _friction_factor; }
double get_friction_factor () const {
return _friction_factor * get_frozen_fact();
}
/**
* Get the rolling friction for that material
@ -51,12 +60,16 @@ public:
/**
* Get the bumpines for that material
*/
double get_bumpiness () const { return _bumpiness; }
double get_bumpiness () const {
return _bumpiness * get_frozen_fact();
}
/**
* Get the load resistance
*/
double get_load_resistance () const { return _load_resistance; }
double get_load_resistance () const {
return _load_resistance / get_frozen_fact();
}
protected:
// True if the material is solid, false if it is a fluid