/**
*
* Renders the Final Texture into the game window.
*
* @author Jade Abbott
* @return Void.
*
*/
void
CRadialMenu::RenderFinalTextureToScreen()
{
assert(m_pRenderer);
assert(m_iFinalTextureID != Utility::INVALID_ID);
assert(m_uiVertexBufferQuadID != Utility::INVALID_ID);
// Prepare the vertices on the quad for rendering.
CVertexBuffer* pVertexBuffer = m_pRenderer->GetVertexBufferManager().GetVertexBuffer(m_uiVertexBufferQuadID);
assert(pVertexBuffer);
if (pVertexBuffer->IsVerticesDynamic())
{
CVertex1TexSCSP* pVertices = reinterpret_cast<CVertex1TexSCSP*>(pVertexBuffer->GetDynamicVertices());
assert(pVertices);
float fRadius = (m_uiDiameter * 0.5f) + 0.5f; // + 0.5f for rasterisation rules.
pVertices[0].SetPos(m_fDrawPositionX - fRadius, m_fDrawPositionY - fRadius);
pVertices[1].SetPos(m_fDrawPositionX + fRadius, m_fDrawPositionY - fRadius);
pVertices[2].SetPos(m_fDrawPositionX - fRadius, m_fDrawPositionY + fRadius);
pVertices[3].SetPos(m_fDrawPositionX + fRadius, m_fDrawPositionY + fRadius);
pVertexBuffer->UpdateDynamicVertices();
}
// Set the texture to render with.
m_pRenderer->GetTextureManager().SetTexture(m_iFinalTextureID);
// Render the quad.
EnsureTexturedAlphaBlending();
pVertexBuffer->Render(m_pRenderer->GetDeviceManager());
}
/**
*
* ITS = Into Target Surface (render target).
* The icons for each button are drawn into the render target surface.
*
* @author Jade Abbott
* @return Void.
*
*/
void
CRadialMenu::DrawIconsITS()
{
assert(m_pRenderer);
assert(m_ucNumButtons);
if (m_arrButtonData)
{
if (m_uiVertexBufferQuadID != Utility::INVALID_ID)
{
CVertexBuffer* pBuffer = m_pRenderer->GetVertexBufferManager().GetVertexBuffer(m_uiVertexBufferQuadID);
assert(pBuffer);
if (pBuffer->IsVerticesDynamic())
{
CVertex1TexSCSP* pVertices = reinterpret_cast<CVertex1TexSCSP*>(pBuffer->GetDynamicVertices());
assert(pVertices);
CTextureManager& rTextureManager = m_pRenderer->GetTextureManager();
CDeviceManager& rDeviceManager = m_pRenderer->GetDeviceManager();
PrepareDeviceData(true);
EnsureTexturedAlphaBlending();
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x0);
float fAngle = (2.0f * MathUtility::PI) / m_ucNumButtons;
float fRadius = m_uiDiameter * 0.5f;
float fHalfScale = m_uiDiameter * 0.0625f; // If diameter is 512, this equals 32 (for 64x64 images).
for (unsigned char uc = 0; uc < m_ucNumButtons; ++uc)
{
if (m_arrButtonData[uc].m_pkReferenceData)
{
if (m_arrButtonData[uc].m_pkReferenceData->m_iIconTextureID != Utility::INVALID_ID)
{
float fDistance = m_fInnerRadius + ((fRadius - m_fInnerRadius) * 0.5f);
float fPosX = fRadius + (cosf((fAngle * uc) + (fAngle * 0.5f)) * fDistance);
float fPosY = fRadius - (sinf((fAngle * uc) + (fAngle * 0.5f)) * fDistance);
pVertices[0].SetPos(fPosX - fHalfScale, fPosY - fHalfScale);
pVertices[1].SetPos(fPosX + fHalfScale, fPosY - fHalfScale);
pVertices[2].SetPos(fPosX - fHalfScale, fPosY + fHalfScale);
pVertices[3].SetPos(fPosX + fHalfScale, fPosY + fHalfScale);
rTextureManager.SetTexture(m_arrButtonData[uc].m_pkReferenceData->m_iIconTextureID);
pBuffer->UpdateDynamicVertices();
pBuffer->Render(rDeviceManager);
}
}
}
}
}
}
}
/**
*
* Sets up the stencil for the number of buttons provided.
* Should only be called in Draw().
* Invalidates the render target surface, as redrawing with the new stencil will not overwrite all of the old image.
*
* @author Jade Abbott
* @return Void.
*
*/
void
CRadialMenu::AssembleStencil()
{
assert(m_ucNumButtons); // Must be non-zero.
assert(m_pLine);
assert(m_pRenderer);
assert(m_uiNumLineVertices >= 2);
assert(m_pLineVertices);
assert(m_ucFlags & FLG_RAD_REDOSTENCIL); // Should only be called when the stencil needs updating.
m_ucFlags = m_ucFlags ^ FLG_RAD_REDOSTENCIL; // Turn off flag.
// Set the render target, stencil surface, and render states.
PrepareDeviceData(true);
// Clear all surfaces, as a change in stencil requires a redraw of everything.
CDeviceManager& rDeviceManager = m_pRenderer->GetDeviceManager();
rDeviceManager.DeviceClear(true, false, true, 0x00000000, 0.0f, 0);
rDeviceManager.SetRenderState(D3DRS_STENCILFUNC, D3DCMP_ALWAYS); // Always...
rDeviceManager.SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_REPLACE); // Replace the existing stencil values.
const float kfFraction((2.0f * MathUtility::PI) / (m_uiNumLineVertices - 1)); // m_uiNumVertices guaranteed >= 2, so no div/0.
const float kfOuterRadius(0.5f * m_uiDiameter);
// Draw lines into the stencil.
if(SUCCEEDED(m_pLine->Begin()))
{
// Set render states so the line can draw into the stencil.
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x2); // With 0x2.
// Draw shapes into stencil, beginning with the circle.
for (unsigned int ui = 0; ui < m_uiNumLineVertices; ++ui)
{
m_pLineVertices[ui].x = kfOuterRadius + (cosf(kfFraction * ui) * m_fInnerRadius);
m_pLineVertices[ui].y = kfOuterRadius + (sinf(kfFraction * ui) * m_fInnerRadius);
}
// Draw circle.
m_pLine->Draw(m_pLineVertices, m_uiNumLineVertices, 0x00000000); // Writes 0x2 into the stencil.
// Draw each dividing line, if greater than one.
if (m_ucNumButtons > 1)
{
const float kfFraction((2.0f * MathUtility::PI) / m_ucNumButtons); // m_ucNumButtons guaranteed non-zero.
for (unsigned char uc = 0; uc < m_ucNumButtons; ++uc)
{
m_pLineVertices[0].x = kfOuterRadius + (cosf(kfFraction * uc) * m_fInnerRadius);
m_pLineVertices[0].y = kfOuterRadius + (sinf(kfFraction * uc) * m_fInnerRadius);
m_pLineVertices[1].x = kfOuterRadius + (cosf(kfFraction * uc) * kfOuterRadius);
m_pLineVertices[1].y = kfOuterRadius + (sinf(kfFraction * uc) * kfOuterRadius);
m_pLine->Draw(m_pLineVertices, 2, 0x00000000); // Writes 0x2 into the stencil.
}
}
// Else there is only one button, so do not draw any dividers.
m_pLine->End();
}
// Draw stencil'd circle in the middle.
CVertexBuffer* pBuffer = m_pRenderer->GetVertexBufferManager().GetVertexBuffer(m_uiVertexBufferMaskID);
if (pBuffer)
{
if (pBuffer->IsVerticesDynamic())
{
CVertexSCSP* pVertices = reinterpret_cast<CVertexSCSP*>(pBuffer->GetDynamicVertices());
assert(pVertices);
pVertices->SetPos(m_uiDiameter * 0.5f, m_uiDiameter * 0.5f);
for (unsigned int ui = 1; ui < pBuffer->GetVertexBufferData().m_uiNumVerts; ++ui)
{
pVertices[ui].SetPos(kfOuterRadius + (cosf(kfFraction * ui) * m_fInnerRadius), kfOuterRadius + (sinf(kfFraction * ui) * m_fInnerRadius));
}
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x1);
pBuffer->UpdateDynamicVertices();
pBuffer->Render(rDeviceManager);
}
}
}
/**
*
* ITS = Into Target Surface (render target).
* This highlights the current button selected.
*
* @author Jade Abbott
* @return Void.
*
*/
void
CRadialMenu::DrawHighlightITS()
{
assert(m_pRenderer);
assert(m_uiVertexBufferMaskID != Utility::INVALID_ID);
// Replace the backbuffer with the Radial Menu's render target and stencil, disabling Z-buffer and enabling stencil.
PrepareDeviceData(true);
CDeviceManager& rDeviceManager = m_pRenderer->GetDeviceManager();
CVertexBuffer* pBuffer = m_pRenderer->GetVertexBufferManager().GetVertexBuffer(m_uiVertexBufferMaskID);
assert(pBuffer);
if (pBuffer->IsVerticesDynamic())
{
CVertexSCSP* pVertices = reinterpret_cast<CVertexSCSP*>(pBuffer->GetDynamicVertices());
assert(pVertices);
// Set render states.
rDeviceManager.SetRenderState(D3DRS_STENCILFUNC, D3DCMP_EQUAL); // When equal to the value previously provided...
rDeviceManager.SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_KEEP); // Do not edit stencil, just draw.
rDeviceManager.SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE); // Allow blending.
rDeviceManager.SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_ADD); // Merge colour components for a highlight effect.
rDeviceManager.SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_ADD); // Merge alpha components as well, so more of the button is lit.
rDeviceManager.SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVDESTCOLOR); // To the Radial Menu's colour (make brighter).
unsigned int uiNumVerts = 0; // Used later in the for loop.
float fRadius = m_uiDiameter * 0.5f; // fRadius == centre of image
// Count the number of disabled buttons there are, create a highlight for each, the apply the selection highlight.
for (unsigned char ucButton = 0; ucButton <= m_ucNumButtons; ++ucButton)
{
unsigned char ucButtonToHighlight = MathUtility::kMaxUC;
if (ucButton == m_ucNumButtons) // If this is the final run...
{
ucButtonToHighlight = m_ucButtonSelected; // Apply highlight to the button the user has selected.
rDeviceManager.SetRenderState(D3DRS_SRCBLEND, D3DBLEND_DESTCOLOR); // Blend the Radial Menu's colour...
}
else if (m_arrButtonData[ucButton].m_bDisabled)
{
ucButtonToHighlight = ucButton; // Apply highlight to the disabled button.
rDeviceManager.SetRenderState(D3DRS_SRCBLEND, D3DBLEND_DESTALPHA); // Blend the colourless mask...
}
else
{
continue; // This button is neither disabled nor selected.
}
if (ucButtonToHighlight == MathUtility::kMaxUC || m_ucNumButtons == 1)
{
if (ucButtonToHighlight == MathUtility::kMaxUC)
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x1); // The value of the centre button.
else
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x0); // The value of an ordinary button.
// Highlight the entire area.
uiNumVerts = 4;
pVertices[0].SetPos(-0.5f, -0.5f);
pVertices[1].SetPos(m_uiDiameter + 0.5f, -0.5f);
pVertices[2].SetPos(m_uiDiameter + 0.5f, m_uiDiameter + 0.5f);
pVertices[3].SetPos(-0.5f, m_uiDiameter + 0.5f);
}
else
{
rDeviceManager.SetRenderState(D3DRS_STENCILREF, 0x0); // The value of an ordinary button.
if (m_ucNumButtons == 2) // Highlight either the top half or bottom half.
{
uiNumVerts = 4;
float fTop = ucButtonToHighlight == 0 ? -0.5f : fRadius;
float fBottom = ucButtonToHighlight == 0 ? fRadius : m_uiDiameter + 0.5f;
pVertices[0].SetPos(-0.5f, fTop);
pVertices[1].SetPos(m_uiDiameter + 0.5f, fTop);
pVertices[2].SetPos(m_uiDiameter + 0.5f, fBottom);
pVertices[3].SetPos(-0.5f, fBottom);
}
else // A slice of pie.
{
uiNumVerts = 3;
float fFraction = (2.0f * MathUtility::PI) / m_ucNumButtons; // fFraction = radians per button.
pVertices[0].SetPos(fRadius, fRadius);
float fY = -sinf(fFraction * (ucButtonToHighlight + 1)) * m_fOuterPlanarLength;
pVertices[1].SetPos(fRadius + (cosf(fFraction * (ucButtonToHighlight + 1)) * m_fOuterPlanarLength),
fRadius + fY);
fY = -sinf(fFraction * ucButtonToHighlight) * m_fOuterPlanarLength;
pVertices[2].SetPos(fRadius + (cosf(fFraction * ucButtonToHighlight) * m_fOuterPlanarLength),
fRadius + fY);
}
}
pBuffer->UpdateDynamicVertices(uiNumVerts);
pBuffer->Render(rDeviceManager, uiNumVerts);
}
}
}