/*
* draws the Emitter
* @author Rigardt de Vries
* @return void
*/
void
CPICParticleEmitter::Draw()
{
if (!m_pVertexBuffer)
{
return;
}
if (!IsEmpty() )
{
TVertexParticleSize* pv;
DWORD dwNumParticlesInBatch = 0;
PreDraw();
CRenderer* pRenderer = CTotalCubeDomination::GetInstance().GetRenderer();
if (m_ePICType == PIC_BULLET_DAMAGE)
{
CTextureManager::GetInstance().SetTexture(0, s_uiBulletDamageID);
}
else if (m_ePICType == PIC_BULLET_SPEED)
{
CTextureManager::GetInstance().SetTexture(0, s_uiBulletMoveID);
}
else if (m_ePICType == PIC_MOVE_SPEED)
{
CTextureManager::GetInstance().SetTexture(0, s_uiMoveID);
}
else if (m_ePICType == PIC_EXPLODE_RADIUS)
{
CTextureManager::GetInstance().SetTexture(0, s_uiRadiusID);
}
else
{
CTextureManager::GetInstance().SetTexture(0, s_uiShieldID);
}
pRenderer->SetWorldMatrix(m_matWorld);
pRenderer->GetDevice()->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_PSIZE);
pRenderer->GetDevice()->SetStreamSource(0, m_pVertexBuffer, 0, sizeof(TVertexParticleSize) );
SortParticles();
m_pVertexBuffer->Lock(NULL, 0, (void**)&pv, D3DLOCK_DISCARD);
for (int32 i = 0; i < static_cast<int32>(m_vecParticles.size() ); ++i)
{
pv->vec3Position = m_vecParticles[i].vec3Position;
const D3DXCOLOR& kr = m_vecParticles[i].colour;
pv->colour = D3DCOLOR_COLORVALUE(kr.r, kr.g, kr.b, kr.a);
pv->fsize = m_vecParticles[i].fSize;
pv++;
++dwNumParticlesInBatch;
}
m_pVertexBuffer->Unlock();
//if (IsAlive() == true)
//{
pRenderer->GetDevice()->DrawPrimitive(D3DPT_POINTLIST, 0, dwNumParticlesInBatch);
//}
PostDraw();
}
}
/*
* Draws the particles
*
* @author Michael McQuarrie
*
* @return void
*/
void
CFlagParticleEmitter::Draw()
{
if (!m_pVertexBuffer)
{
return;
}
if (!IsEmpty() )
{
//First PreDraw it
TVertexParticleSize* pv;
DWORD dwNumParticlesInBatch = 0;
PreDraw();
//Get the renderer
CRenderer* pRenderer = CTotalCubeDomination::GetInstance().GetRenderer();
//Get the texture
CTextureManager::GetInstance().SetTexture(0, s_uiTextureID);
//Set Matrix
pRenderer->SetWorldMatrix(m_matWorld);
//Set FVF and source things
pRenderer->GetDevice()->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_PSIZE);
pRenderer->GetDevice()->SetStreamSource(0, m_pVertexBuffer, 0, sizeof(TVertexParticleSize) );
SortParticles();
m_pVertexBuffer->Lock(NULL, 0, (void**)&pv, D3DLOCK_DISCARD);
//Doing colour things
for (int32 i = 0; i < static_cast<int32>(m_vecParticles.size() ); ++i)
{
if (m_vecParticles[i].bAlive)
{
pv->vec3Position = m_vecParticles[i].vec3Position;
const D3DXCOLOR& kr = m_vecParticles[i].colour;
pv->colour = D3DCOLOR_COLORVALUE(kr.r, kr.g, kr.b, 1.0f - kr.a);
pv->fsize = m_vecParticles[i].fLifeTime + 0.5f;
pv++;
++dwNumParticlesInBatch;
}
}
m_pVertexBuffer->Unlock();
//Draw it
if (IsAlive() == true)
{
pRenderer->GetDevice()->DrawPrimitive(D3DPT_POINTLIST, 0, dwNumParticlesInBatch);
}
//End the drawing
PostDraw();
}
}
/*
* Draw the particles in this emitter
* @author Rigardt de Vries
* @return void
*/
void
CSpiralParticleEmitter::Draw()
{
if (!m_pVertexBuffer)
{
return;
}
if (!IsEmpty() )
{
TVertexParticle* pv;
DWORD dwNumParticlesInBatch = 0;
PreDraw();
CRenderer* pRenderer = CTotalCubeDomination::GetInstance().GetRenderer();
CTextureManager::GetInstance().SetTexture(0, s_uiTextureID);
pRenderer->SetWorldMatrix(m_matWorld);
pRenderer->GetDevice()->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE);
pRenderer->GetDevice()->SetStreamSource(0, m_pVertexBuffer, 0, sizeof(TVertexParticle) );
SortParticles();
m_pVertexBuffer->Lock(NULL, 0, (void**)&pv, D3DLOCK_DISCARD);
for (int32 i = 0; i < static_cast<int32>(m_vecParticles.size() ); ++i)
{
if (m_vecParticles[i].bAlive)
{
pv->vec3Position = m_vecParticles[i].vec3Position;
const D3DXCOLOR& kr = m_vecParticles[i].colour;
pv->colour = D3DCOLOR_COLORVALUE(kr.r, kr.g, kr.b, kr.a);
pv++;
++dwNumParticlesInBatch;
}
}
m_pVertexBuffer->Unlock();
if (dwNumParticlesInBatch)
{
pRenderer->GetDevice()->DrawPrimitive(D3DPT_POINTLIST, 0, dwNumParticlesInBatch);
}
PostDraw();
}
}
//--------------------------------------------------------------------------------------
void CopyParticlesToVertexBuffer( PARTICLE_VERTEX* pVB, D3DXVECTOR3 vEye, D3DXVECTOR3 vRight, D3DXVECTOR3 vUp )
{
SortParticles( vEye );
g_NumActiveParticles = 0;
UINT iVBIndex = 0;
for( int i = g_NumUsedParticles - 1; i >= 0; i-- )
{
UINT index = g_pParticleIndices[i];
D3DXVECTOR3 vPos = g_pParticleArray[index].vPos;
float fRadius = g_pParticleArray[index].fRadius;
float fRot = g_pParticleArray[index].fRot;
float fFade = g_pParticleArray[index].fFade;
DWORD vColor = g_pParticleArray[index].Color;
if( !g_pParticleArray[index].bVisible )
continue;
// rotate
float fSinTheta = sinf( fRot );
float fCosTheta = cosf( fRot );
D3DXVECTOR2 New[4];
for( int v = 0; v < 4; v++ )
{
New[v].x = fCosTheta * g_sQuad[v].x - fSinTheta * g_sQuad[v].y;
New[v].y = fSinTheta * g_sQuad[v].x + fCosTheta * g_sQuad[v].y;
New[v].x *= fRadius;
New[v].y *= fRadius;
}
// Tri 0 (0,1,3)
pVB[ iVBIndex + 2 ].vPos = vPos + vRight * New[0].x + vUp * New[0].y;
pVB[ iVBIndex + 2 ].vUV = D3DXVECTOR2( 0, 1 );
pVB[ iVBIndex + 2 ].fLife = fFade;
pVB[ iVBIndex + 2 ].fRot = fRot;
pVB[ iVBIndex + 2 ].Color = vColor;
pVB[ iVBIndex + 1 ].vPos = vPos + vRight * New[1].x + vUp * New[1].y;
pVB[ iVBIndex + 1 ].vUV = D3DXVECTOR2( 1, 1 );
pVB[ iVBIndex + 1 ].fLife = fFade;
pVB[ iVBIndex + 1 ].fRot = fRot;
pVB[ iVBIndex + 1 ].Color = vColor;
pVB[ iVBIndex + 0 ].vPos = vPos + vRight * New[3].x + vUp * New[3].y;
pVB[ iVBIndex + 0 ].vUV = D3DXVECTOR2( 0, 0 );
pVB[ iVBIndex + 0 ].fLife = fFade;
pVB[ iVBIndex + 0 ].fRot = fRot;
pVB[ iVBIndex + 0 ].Color = vColor;
// Tri 1 (3,1,2)
pVB[ iVBIndex + 5 ].vPos = vPos + vRight * New[3].x + vUp * New[3].y;
pVB[ iVBIndex + 5 ].vUV = D3DXVECTOR2( 0, 0 );
pVB[ iVBIndex + 5 ].fLife = fFade;
pVB[ iVBIndex + 5 ].fRot = fRot;
pVB[ iVBIndex + 5 ].Color = vColor;
pVB[ iVBIndex + 4 ].vPos = vPos + vRight * New[1].x + vUp * New[1].y;
pVB[ iVBIndex + 4 ].vUV = D3DXVECTOR2( 1, 1 );
pVB[ iVBIndex + 4 ].fLife = fFade;
pVB[ iVBIndex + 4 ].fRot = fRot;
pVB[ iVBIndex + 4 ].Color = vColor;
pVB[ iVBIndex + 3 ].vPos = vPos + vRight * New[2].x + vUp * New[2].y;
pVB[ iVBIndex + 3 ].vUV = D3DXVECTOR2( 1, 0 );
pVB[ iVBIndex + 3 ].fLife = fFade;
pVB[ iVBIndex + 3 ].fRot = fRot;
pVB[ iVBIndex + 3 ].Color = vColor;
iVBIndex += 6;
g_NumActiveParticles ++;
}
}
