void GameWorldView::SetNextZoomFactor()
{
if (zoomFactor_ == targetZoomFactor_) // == with float is ok here, is explicitly set in last step
return;
float remainingZoomDiff = targetZoomFactor_ - zoomFactor_;
if (std::abs(remainingZoomDiff) <= 0.5 * zoomSpeed_ * zoomSpeed_ / ZOOM_ACCELERATION)
{
// deceleration towards zero zoom speed
if (zoomSpeed_ > 0)
zoomSpeed_ -= ZOOM_ACCELERATION;
else
zoomSpeed_ += ZOOM_ACCELERATION;
}
else
{
// acceleration to unlimited speed
if (remainingZoomDiff > 0)
zoomSpeed_ += ZOOM_ACCELERATION;
else
zoomSpeed_ -= ZOOM_ACCELERATION;
}
if (std::abs(remainingZoomDiff) < std::abs(zoomSpeed_))
{
// last step
zoomFactor_ = targetZoomFactor_;
zoomSpeed_ = 0;
}
zoomFactor_ = zoomFactor_ + zoomSpeed_;
CalcFxLx();
}
/**
* verschiebt das Bild zu einer bestimmten Stelle.
*
* @author FloSoft
*/
void GameWorldView::MoveTo(int x, int y, bool absolute)
{
if(absolute)
{
xoffset = x;
yoffset = y;
}
else
{
xoffset += x;
yoffset += y;
}
CalcFxLx();
}
void GameWorldView::MoveTo(const DrawPoint& newPos, bool absolute)
{
if(absolute)
offset = newPos;
else
offset += newPos;
DrawPoint size(GetWorld().GetWidth() * TR_W, GetWorld().GetHeight() * TR_H);
if(size.x && size.y)
{
offset.x %= size.x;
offset.y %= size.y;
if(offset.x < 0)
offset.x += size.x;
if(offset.y < 0)
offset.y += size.y;
}
CalcFxLx();
}
void GameWorldView::Resize(unsigned short width, unsigned short height)
{
this->width = width;
this->height = height;
CalcFxLx();
}
GameWorldView::GameWorldView(GameWorldViewer* gwv, unsigned short x, unsigned short y, unsigned short width, unsigned short height) : selx(0), sely(0), show_coordinates(false), show_bq(false), show_names(false), show_productivity(false), xoffset(0), yoffset(0), last_xoffset(0), last_yoffset(0), gwv(gwv), d_what(0), d_player(0), d_active(false), x(x), y(y), width(width), height(height), terrain_list(0), terrain_last_xoffset(0), terrain_last_yoffset(0), terrain_last_global_animation(0), terrain_last_water(0)
{
CalcFxLx();
}
