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#pragma once
struct surfacephysicsparams_t {
// vphysics physical properties
float friction;
float elasticity; // collision elasticity - used to compute coefficient of restitution
float density; // physical density (in kg / m^3)
float thickness; // material thickness if not solid (sheet materials) in inches
float dampening;
};
struct surfaceaudioparams_t {
float reflectivity; // like elasticity, but how much sound should be reflected by this surface
float hardnessFactor; // like elasticity, but only affects impact sound choices
float roughnessFactor; // like friction, but only affects scrape sound choices
float roughThreshold; // surface roughness > this causes "rough" scrapes, < this causes "smooth" scrapes
float hardThreshold; // surface hardness > this causes "hard" impacts, < this causes "soft" impacts
float hardVelocityThreshold; // collision velocity > this causes "hard" impacts, < this causes "soft" impacts
float highPitchOcclusion; //a value betweeen 0 and 100 where 0 is not occluded at all and 100 is silent (except for any additional reflected sound)
float midPitchOcclusion;
float lowPitchOcclusion;
};
struct surfacesoundnames_t {
unsigned short walkStepLeft;
unsigned short walkStepRight;
unsigned short runStepLeft;
unsigned short runStepRight;
unsigned short impactSoft;
unsigned short impactHard;
unsigned short scrapeSmooth;
unsigned short scrapeRough;
unsigned short bulletImpact;
unsigned short rolling;
unsigned short breakSound;
unsigned short strainSound;
};
struct surfacegameprops_t {
float maxspeedfactor;
float jumpfactor;
float penetrationmodifier;
float damagemodifier;
uint16_t material;
uint8_t climbable;
};
struct surfacedata_t {
surfacephysicsparams_t physics; // physics parameters
surfaceaudioparams_t audio; // audio parameters
surfacesoundnames_t sounds; // names of linked sounds
surfacegameprops_t game; // Game data / properties
};
class IPhysicsSurfaceProps
{
public:
virtual ~IPhysicsSurfaceProps( void ) {}
// parses a text file containing surface prop keys
virtual int ParseSurfaceData( const char* pFilename, const char* pTextfile ) = 0;
// current number of entries in the database
virtual int SurfacePropCount( void ) const = 0;
virtual int GetSurfaceIndex( const char* pSurfacePropName ) const = 0;
virtual void GetPhysicsProperties( int surfaceDataIndex, float* density, float* thickness, float* friction, float* elasticity ) const = 0;
virtual surfacedata_t* GetSurfaceData( int surfaceDataIndex ) = 0;
virtual const char* GetString( unsigned short stringTableIndex ) const = 0;
virtual const char* GetPropName( int surfaceDataIndex ) const = 0;
// sets the global index table for world materials
// UNDONE: Make this per-CPhysCollide
virtual void SetWorldMaterialIndexTable( int* pMapArray, int mapSize ) = 0;
// NOTE: Same as GetPhysicsProperties, but maybe more convenient
//virtual void GetPhysicsParameters(int surfaceDataIndex, surfacephysicsparams_t* pParamsOut) const = 0;
};
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