void CWaterSurfaceSceneNode::animateWaterSurface()
{
if (!Mesh)
return;
s32 meshBufferCount = Mesh->getMeshBufferCount();
f32 time = os::Timer::getTime() / WaveSpeed;
for (s32 b=0; b<meshBufferCount; ++b)
{
s32 vtxCnt = Mesh->getMeshBuffer(b)->getVertexCount();
switch(Mesh->getMeshBuffer(b)->getVertexType())
{
case video::EVT_STANDARD:
{
video::S3DVertex* v =
(video::S3DVertex*)Mesh->getMeshBuffer(b)->getVertices();
video::S3DVertex* v2 =
(video::S3DVertex*)OriginalMesh->getMeshBuffer(b)->getVertices();
for (s32 i=0; i<vtxCnt; ++i)
{
v[i].Pos.Y = v2[i].Pos.Y +
((f32)FastSin(((v2[i].Pos.X/WaveLength) + time)) * WaveHeight) +
((f32)FastCos(((v2[i].Pos.Z/WaveLength) + time)) * WaveHeight);
}
//printf("water2c %d %d\n", os::Timer::getRealTime() -d, vtxCnt);
}
break;
case video::EVT_2TCOORDS:
{
video::S3DVertex2TCoords* v =
(video::S3DVertex2TCoords*)Mesh->getMeshBuffer(b)->getVertices();
video::S3DVertex2TCoords* v2 =
(video::S3DVertex2TCoords*)OriginalMesh->getMeshBuffer(b)->getVertices();
for (s32 i=0; i<vtxCnt; ++i)
{
v[i].Pos.Y = v2[i].Pos.Y +
((f32)FastSin(((v2[i].Pos.X/WaveLength) + time)) * WaveHeight) +
((f32)FastCos(((v2[i].Pos.Z/WaveLength) + time)) * WaveHeight);
}
//printf("water2c %d %d\n", os::Timer::getRealTime() -d, vtxCnt);
}
break;
} // end switch
} // end for all mesh buffers
SceneManager->getMeshManipulator()->recalculateNormals(Mesh);
}
void ParticleSystem::InitParticle(Particle &particle, bool random)
{
if (random)
{
//random life
particle.life = RandomNumber(0.0f, m_maxLife);
}
else
{
//full life
particle.life = m_maxLife;
}
//random fade between min and max fade
particle.fade = RandomNumber(m_minFade, m_maxFade);
//zero position
PointZero(particle.position);
//perturb initial velocity by spread factor
float s = FastSin(m_spread);
particle.vX = m_vX + s * RandomNumber(-1.0f, 1.0f);
particle.vY = m_vY + s * RandomNumber(-1.0f, 1.0f);
particle.vZ = m_vZ + s * RandomNumber(-1.0f, 1.0f);
}