static void AddDetailSpriteToLump( const Vector &vecOrigin, const QAngle &vecAngles, DetailModel_t const& model, float flScale )
{
AddDetailSpriteToLump( vecOrigin,
vecAngles,
model.m_Orientation,
model.m_Pos,
model.m_Tex,
flScale,
model.m_Type,
model.m_ShapeAngle,
model.m_ShapeSize,
model.m_SwayAmount );
}
//-----------------------------------------------------------------------------
// Places Detail Objects in the level
//-----------------------------------------------------------------------------
void EmitDetailModels()
{
StartPacifier("Placing detail props : ");
// Place stuff on each face
dface_t* pFace = dfaces;
for (int j = 0; j < numfaces; ++j)
{
UpdatePacifier( (float)j / (float)numfaces );
// Get at the material associated with this face
texinfo_t* pTexInfo = &texinfo[pFace[j].texinfo];
dtexdata_t* pTexData = GetTexData( pTexInfo->texdata );
// Try to get at the material
bool found;
MaterialSystemMaterial_t handle =
FindOriginalMaterial( TexDataStringTable_GetString( pTexData->nameStringTableID ),
&found, false );
if (!found)
continue;
// See if its got any detail objects on it
const char* pDetailType = GetMaterialVar( handle, "%detailtype" );
if (!pDetailType)
continue;
// Get the detail type...
DetailObject_t search;
search.m_Name = pDetailType;
int objectType = s_DetailObjectDict.Find(search);
if (objectType < 0)
{
Warning("Material %s uses unknown detail object type %s!\n",
TexDataStringTable_GetString( pTexData->nameStringTableID ),
pDetailType);
continue;
}
// Emit objects on a particular face
DetailObject_t& detail = s_DetailObjectDict[objectType];
if (pFace[j].dispinfo < 0)
{
EmitDetailObjectsOnFace( &pFace[j], detail );
}
else
{
// Get a CCoreDispInfo. All we need is the triangles and lightmap texture coordinates.
mapdispinfo_t *pMapDisp = &mapdispinfo[pFace[j].dispinfo];
CCoreDispInfo coreDispInfo;
DispMapToCoreDispInfo( pMapDisp, &coreDispInfo, &pFace[j] );
EmitDetailObjectsOnDisplacementFace( &pFace[j], detail, coreDispInfo );
}
}
// Emit specifically specified detail props
Vector origin;
QAngle angles;
Vector2D pos[2];
Vector2D tex[2];
for (int i = 0; i < num_entities; ++i)
{
char* pEntity = ValueForKey(&entities[i], "classname");
if (!strcmp(pEntity, "detail_prop") || !strcmp(pEntity, "prop_detail"))
{
GetVectorForKey( &entities[i], "origin", origin );
GetAnglesForKey( &entities[i], "angles", angles );
char* pModelName = ValueForKey( &entities[i], "model" );
int nOrientation = IntForKey( &entities[i], "detailOrientation" );
AddDetailToLump( pModelName, origin, angles, nOrientation );
// strip this ent from the .bsp file
entities[i].epairs = 0;
continue;
}
if (!strcmp(pEntity, "prop_detail_sprite"))
{
GetVectorForKey( &entities[i], "origin", origin );
GetAnglesForKey( &entities[i], "angles", angles );
int nOrientation = IntForKey( &entities[i], "detailOrientation" );
GetVector2DForKey( &entities[i], "position_ul", pos[0] );
GetVector2DForKey( &entities[i], "position_lr", pos[1] );
GetVector2DForKey( &entities[i], "tex_ul", tex[0] );
GetVector2DForKey( &entities[i], "tex_size", tex[1] );
float flTextureSize = FloatForKey( &entities[i], "tex_total_size" );
tex[1].x += tex[0].x - 0.5f;
tex[1].y += tex[0].y - 0.5f;
tex[0].x += 0.5f;
tex[0].y += 0.5f;
tex[0] /= flTextureSize;
tex[1] /= flTextureSize;
AddDetailSpriteToLump( origin, angles, nOrientation, pos, tex, 1.0f );
// strip this ent from the .bsp file
entities[i].epairs = 0;
continue;
}
}
EndPacifier( true );
}
static void PlaceDetail( DetailModel_t const& model, const Vector& pt, const Vector& normal )
{
// But only place it on the surface if it meets the angle constraints...
float cosAngle = normal.z;
// Never emit if the angle's too steep
if (cosAngle < model.m_MaxCosAngle)
return;
// If it's between min + max, flip a coin...
if (cosAngle < model.m_MinCosAngle)
{
float probability = (cosAngle - model.m_MaxCosAngle) /
(model.m_MinCosAngle - model.m_MaxCosAngle);
float t = rand() / (float)RAND_MAX;
if (t > probability)
return;
}
// Compute the orientation of the detail
QAngle angles;
if (model.m_Flags & MODELFLAG_UPRIGHT)
{
// If it's upright, we just select a random yaw
angles.Init( 0, 360.0f * rand() / (float)RAND_MAX, 0.0f );
}
else
{
// It's not upright, so it must conform to the ground. Choose
// a random orientation based on the surface normal
Vector zaxis;
VectorCopy( normal, zaxis );
// Choose any two arbitrary axes which are perpendicular to the normal
Vector xaxis( 1, 0, 0 );
if (fabs(xaxis.Dot(zaxis)) - 1.0 > -1e-3)
xaxis.Init( 0, 1, 0 );
Vector yaxis;
CrossProduct( zaxis, xaxis, yaxis );
CrossProduct( yaxis, zaxis, xaxis );
VMatrix matrix;
matrix.SetBasisVectors( xaxis, yaxis, zaxis );
float rotAngle = 360.0f * rand() / (float)RAND_MAX;
VMatrix rot = SetupMatrixAxisRot( Vector( 0, 0, 1 ), rotAngle );
matrix = matrix * rot;
MatrixToAngles( matrix, angles );
}
// FIXME: We may also want a purely random rotation too
// Insert an element into the object dictionary if it aint there...
switch ( model.m_Type )
{
case DETAIL_PROP_TYPE_MODEL:
AddDetailToLump( model.m_ModelName.String(), pt, angles, model.m_Orientation );
break;
case DETAIL_PROP_TYPE_SPRITE:
{
float flScale = 1.0f;
if ( model.m_flRandomScaleStdDev != 0.0f )
{
flScale = fabs( RandomGaussianFloat( 1.0f, model.m_flRandomScaleStdDev ) );
}
AddDetailSpriteToLump( pt, angles, model.m_Orientation, model.m_Pos, model.m_Tex, flScale );
}
break;
}
}
