void CFluidFX::ObstacleCollisionCheck(int xpos, int ypos)
{
float relx = (float)xpos / m_width;
float rely = (float)ypos / m_height;
float dx = m_mouseX - relx;
float dy = m_mouseY - rely;
// roughly distance check !
float collideDist = 0.01f * (AdjustX() * AdjustX() + AdjustY() * AdjustY());
m_mouseOnObstacle = false;
if (dx*dx + dy*dy <= collideDist)
{
m_mouseOnObstacle = true;
}
}
void CFluidFX::SetMousePosition(int xpos, int ypos)
{
m_mouseX = (float)xpos / m_width;
m_mouseY = (float)ypos / m_height;
// Only need to update circle position
FluidSetCirclePosition(m_mouseX, m_mouseY, RealWidth(), RealHeight(), AdjustX(), AdjustY());
}
/* Process the movement of one line. */
void TList::LineTick( HDC DC )
{
EraseLine(DC, CurrentLine);
if (ColorDuration < 0) SelectNewColor();
if (!IncrementCount) SelectNewDeltaValues();
AdjustX(X1,DeltaX1); AdjustX(X2,DeltaX2);
AdjustY(Y1,DeltaY1); AdjustY(Y2,DeltaY2);
Line[CurrentLine].LX1 = X1;
Line[CurrentLine].LX2 = X2;
Line[CurrentLine].LY1 = Y1;
Line[CurrentLine].LY2 = Y2;
Line[CurrentLine].Color = PenColor;
DrawLine(DC, CurrentLine);
CurrentLine++;
if (CurrentLine >= MaxLines) CurrentLine = 1;
ColorDuration--;
IncrementCount--;
};
bool CFluidFX::WindowResize(int width, int height)
{
if (! CEffect::WindowResize(width, height))
return false;
if (width > m_widthLimit && height > m_heightLimit)
{
// re-create obstacle to maintain correct visual ratio, so
// the circle won't looks like ellipsoid, and put obstacle in
// correct position.
//
// So, don't return here, even though our real textures size
// are unchanged. Re-create all to avoid strange result.
}
FluidResize(RealWidth(), RealHeight());
FluidObstacleResize(m_mouseX, m_mouseY, RealWidth(), RealHeight(), AdjustX(), AdjustY());
return true;
}