bool CFXRings::LoadData(CResourceList* pResourceList)
{
int i;
if(!(m_pResHorTexture = this->FindResource(pResourceList, "Horizontal Texture", CResourceTexture2D::CLASSNAME)))
{
FXLoadError("Can't find horizontal texture resource");
return false;
}
m_pResHorTexture->NotifyDependency(this);
if(!(m_pResVertTexture = this->FindResource(pResourceList, "Vertical Texture", CResourceTexture2D::CLASSNAME)))
{
FXLoadError("Can't find vertical texture resource");
return false;
}
m_pResVertTexture->NotifyDependency(this);
// Build mesh and ring properties
CVarInt::CValueInt valueHorRingCount;
CVarFloat::CValueFloat valueHorVariation;
CVarInt::CValueInt valueVertRingCount;
CVarFloat::CValueFloat valueVertVariation;
CVarInt::CValueInt valueRingSubdivisions;
CVarInt::CValueInt valueSeed;
EvaluateVar("Horizontal Ring Count", 0.0f, &valueHorRingCount);
EvaluateVar("Horizontal Variation", 0.0f, &valueHorVariation);
EvaluateVar("Vertical Ring Count", 0.0f, &valueVertRingCount);
EvaluateVar("Vertical Variation", 0.0f, &valueVertVariation);
EvaluateVar("Ring Subdivisions", 0.0f, &valueRingSubdivisions);
EvaluateVar("Seed", 0.0f, &valueSeed);
srand(valueSeed.GetValue());
m_nSubdivisions = valueRingSubdivisions.GetValue();
if(m_nSubdivisions < 2) m_nSubdivisions = 2;
m_pv3Circle = new CVector3[m_nSubdivisions + 1];
m_pv3MeshVertices = new CVector3[(m_nSubdivisions + 1) * 2];
m_pv2MeshMapping = new CVector2[(m_nSubdivisions + 1) * 2];
m_pnMeshFaceList = new int [m_nSubdivisions * 4];
for(i = 0; i < m_nSubdivisions + 1; i++)
{
// Precomputed normalized circle
CMatrix rotMatrix;
rotMatrix.BuildRotationY(((float)i / (float)m_nSubdivisions) * 360.0f);
m_pv3Circle[i].Set(1.0f, 0.0f, 0.0f);
rotMatrix.Transform(&m_pv3Circle[i]);
// Precomputed mapping
m_pv2MeshMapping[i ].Set((float)i / (float)m_nSubdivisions, 0.0f);
m_pv2MeshMapping[i + m_nSubdivisions + 1].Set((float)i / (float)m_nSubdivisions, 1.0f);
// Precomputed face list
if(i < m_nSubdivisions)
{
m_pnMeshFaceList[i * 4 + 0] = i;
m_pnMeshFaceList[i * 4 + 1] = i + m_nSubdivisions + 1;
m_pnMeshFaceList[i * 4 + 2] = i + m_nSubdivisions + 2;
m_pnMeshFaceList[i * 4 + 3] = i + 1;
}
}
for(i = 0; i < valueHorRingCount.GetValue(); i++)
{
SRing ring;
ring.eType = SRing::HORIZONTAL;
ring.fRadius = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());
ring.fWidth = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());
ring.fAlpha = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());
ring.fDistToCenter = ComputeLERP(-0.5f, 0.5f, (float)i / (float)valueHorRingCount.GetValue()) + ComputeRandWithVariation((float)i / (float)valueHorRingCount.GetValue(), valueHorVariation.GetValue());
ring.fRotSpeed = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());
ring.fRotAngleStart = ComputeRand(0.0f, 360.0f);
ring.fOscillationAmplitude = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());
ring.fOscillationFrequency = ComputeRandWithVariation(1.0f, valueHorVariation.GetValue());;
ring.fOscillationOffset = ComputeRand(0.0f, 1.0f);
if(rand() % 2)
{
ring.fRotSpeed = -ring.fRotSpeed;
}
m_vecRings.push_back(ring);
}
for(i = 0; i < valueVertRingCount.GetValue(); i++)
{
SRing ring;
ring.eType = SRing::VERTICAL;
ring.fRadius = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());
ring.fWidth = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());
ring.fAlpha = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());
ring.fDistToCenter = ComputeLERP(-0.5f, 0.5f, (float)i / (float)valueVertRingCount.GetValue()) + ComputeRandWithVariation((float)i / (float)valueVertRingCount.GetValue(), valueVertVariation.GetValue());
ring.fRotSpeed = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());
ring.fRotAngleStart = ComputeRand(0.0f, 360.0f);
ring.fOscillationAmplitude = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());
ring.fOscillationFrequency = ComputeRandWithVariation(1.0f, valueVertVariation.GetValue());;
ring.fOscillationOffset = ComputeRand(0.0f, 1.0f);
if(rand() % 2)
{
ring.fRotSpeed = -ring.fRotSpeed;
}
m_vecRings.push_back(ring);
}
return true;
}
