Function WindowScrollToLocation

src/openrct2/interface/Window.cpp:340–421

* * rct2: 0x006E7C9C * @param w (esi) * @param x (eax) * @param y (ecx) * @param z (edx) */

     * @param z (edx)
     */
    void WindowScrollToLocation(WindowBase& w, const CoordsXYZ& coords)
    {
        WindowUnfollowSprite(w);

        if (w.viewport == nullptr)
        {
            return;
        }

        int16_t height = TileElementHeight(coords);
        if (coords.z < height - 16)
        {
            if (!(w.viewport->flags & VIEWPORT_FLAG_UNDERGROUND_INSIDE))
            {
                w.viewport->flags |= VIEWPORT_FLAG_UNDERGROUND_INSIDE;
                w.invalidate();
            }
        }
        else
        {
            if (w.viewport->flags & VIEWPORT_FLAG_UNDERGROUND_INSIDE)
            {
                w.viewport->flags &= ~VIEWPORT_FLAG_UNDERGROUND_INSIDE;
                w.invalidate();
            }
        }

        auto screenCoords = Translate3DTo2DWithZ(w.viewport->rotation, coords);

        int32_t i = 0;
        if (gLegacyScene != LegacyScene::titleSequence)
        {
            bool found = false;
            while (!found)
            {
                auto x2 = w.viewport->pos.x + static_cast<int32_t>(w.viewport->width * kWindowScrollLocations[i][0]);
                auto y2 = w.viewport->pos.y + static_cast<int32_t>(w.viewport->height * kWindowScrollLocations[i][1]);

                auto it = WindowGetIterator(&w);
                for (; it != gWindowList.end(); it++)
                {
                    if ((*it)->flags.has(WindowFlag::dead))
                        continue;

                    auto w2 = it->get();
                    auto x1 = w2->windowPos.x - 10;
                    auto y1 = w2->windowPos.y - 10;
                    if (x2 >= x1 && x2 <= w2->width + x1 + 20)
                    {
                        if (y2 >= y1 && y2 <= w2->height + y1 + 20)
                        {
                            // window is covering this area, try the next one
                            i++;
                            found = false;
                            break;
                        }
                    }
                }