void CShapeEffectCreator::CreateShapeRegion (int iAngle, int iLength, int iWidth, CG16bitRegion *pRegion)
// CreateShapeRegion
//
// Creates a transformed polygon from m_Points and the given parameters
{
// Define a transformation for this shape
CXForm Trans(xformScale, ((Metric)iLength)/100.0, ((Metric)iWidth)/100.0);
Trans = Trans * CXForm(xformRotate, iAngle);
// Transform the points
for (int i = 0; i < m_iPointCount; i++)
{
Metric x, y;
Trans.Transform(m_Points[i].x, m_Points[i].y, &x, &y);
m_TransBuffer[i].x = (int)(x + 0.5);
m_TransBuffer[i].y = -(int)(y + 0.5);
}
// Create the region
if (m_bConvexPolygon)
pRegion->CreateFromConvexPolygon(m_iPointCount, m_TransBuffer);
else
pRegion->CreateFromPolygon(m_iPointCount, m_TransBuffer);
}
IAnimatron *CAniVScroller::HitTest (const CXForm &ToDest, int x, int y)
// HitTest
//
// Hit test
{
int i;
IAnimatron *pHit;
// Transform
Metric yScrollPos = m_Properties[INDEX_SCROLL_POS].GetMetric();
Metric cyViewport = m_Properties[INDEX_VIEWPORT_HEIGHT].GetMetric();
CVector vPos = m_Properties[INDEX_POSITION].GetVector();
CXForm LocalToDest = CXForm(xformTranslate, vPos - CVector(0.0, yScrollPos)) * ToDest;
// Loop over all lines
for (i = 0; i < m_List.GetCount(); i++)
{
SLine *pList = &m_List[i];
// Are we in the viewport?
RECT rcLine;
pList->pAni->GetSpacingRect(&rcLine);
Metric cyLine = (Metric)RectHeight(rcLine);
Metric yLinePos = pList->pAni->GetPropertyVector(PROP_POSITION).GetY() - yScrollPos;
if (yLinePos + cyLine < 0.0 || yLinePos >= cyViewport)
continue;
// Hit test
if (pHit = pList->pAni->HitTest(LocalToDest, x, y))
return pHit;
}
return NULL;
}
void CreateBlasterShape (int iAngle, int iLength, int iWidth, SPoint *Poly)
// CreateBlasterShape
//
// Creates a blaster-shaped polygon
{
// Define a transformation for this shape
CXForm Trans(xformScale, ((Metric)iWidth)/100.0, ((Metric)iLength)/100.0);
Trans = Trans * CXForm(xformRotate, iAngle + 270);
// Generate the points
for (int i = 0; i < 8; i++)
{
Metric x, y;
Trans.Transform(g_BlasterShape[i].x, g_BlasterShape[i].y, &x, &y);
Poly[i].x = (int)x;
Poly[i].y = (int)y;
}
}
void CMoltenBoltEffectCreator::CreateBoltShape (int iAngle, int iLength, int iWidth, SPoint *Poly)
// CreateBoltShape
//
// Creates a bolt-shaped polygon
{
// Define a transformation for this shape
CXForm Trans(xformScale, ((Metric)iLength)/100.0, ((Metric)iWidth)/34.0);
Trans = Trans * CXForm(xformRotate, iAngle);
// Generate the points
for (int i = 0; i < SHAPE_COUNT; i++)
{
Metric x, y;
Trans.Transform(g_Shape[i].x, g_Shape[i].y, &x, &y);
Poly[i].x = (int)(x + 0.5);
Poly[i].y = -(int)(y + 0.5);
}
}
void CAniVScroller::Paint (SAniPaintCtx &Ctx)
// Paint
//
// Paint the lines
{
int i;
// Basic metrics
Metric yScrollPos = m_Properties[INDEX_SCROLL_POS].GetMetric();
Metric cyViewport = m_Properties[INDEX_VIEWPORT_HEIGHT].GetMetric();
Metric cyFadeEdge = m_Properties[INDEX_FADE_EDGE_HEIGHT].GetMetric();
DWORD dwBaseOpacity = m_Properties[INDEX_OPACITY].GetOpacity() * Ctx.dwOpacityToDest / 255;
// Transform
CVector vPos = m_Properties[INDEX_POSITION].GetVector();
CXForm LocalToDest = CXForm(xformTranslate, vPos - CVector(0.0, yScrollPos)) * Ctx.ToDest;
// Local paint ctx
SAniPaintCtx LocalCtx(Ctx.Dest,
LocalToDest,
0,
Ctx.iFrame);
// Clip
RECT rcSavedClip = Ctx.Dest.GetClipRect();
RECT rcClip = rcSavedClip;
rcClip.top = (int)vPos.GetY();
rcClip.bottom = (int)(vPos.GetY() + cyViewport);
Ctx.Dest.SetClipRect(rcClip);
// Loop over all lines
for (i = 0; i < m_List.GetCount(); i++)
{
SLine *pList = &m_List[i];
// Are we in the viewport?
RECT rcLine;
pList->pAni->GetSpacingRect(&rcLine);
Metric cyLine = (Metric)RectHeight(rcLine);
Metric yLinePos = pList->pAni->GetPropertyVector(PROP_POSITION).GetY() - yScrollPos;
if (yLinePos + cyLine < 0.0 || yLinePos >= cyViewport)
continue;
// Fade edges
if (cyFadeEdge > 0.0)
{
if (yLinePos < 0.0)
LocalCtx.dwOpacityToDest = 0;
else if (yLinePos < cyFadeEdge)
LocalCtx.dwOpacityToDest = (DWORD)((Metric)dwBaseOpacity * (yLinePos / cyFadeEdge));
else if (yLinePos + cyFadeEdge > cyViewport)
LocalCtx.dwOpacityToDest = (DWORD)((Metric)dwBaseOpacity * (cyViewport - yLinePos) / cyFadeEdge);
else
LocalCtx.dwOpacityToDest = dwBaseOpacity;
}
else
LocalCtx.dwOpacityToDest = dwBaseOpacity;
// Paint
pList->pAni->Paint(LocalCtx);
}
Ctx.Dest.SetClipRect(rcSavedClip);
}