Method viewportsUpdatePosition

src/OpenLoco/src/Ui/Window.cpp:282–390

0x004C6456

    // 0x004C6456
    void Window::viewportsUpdatePosition()
    {
        for (int i = 0; i < 2; i++)
        {
            Viewport* viewport = this->viewports[i];
            ViewportConfig* config = &this->viewportConfigurations[i];

            if (viewport == nullptr)
            {
                continue;
            }

            viewport_pos centre;

            if (config->viewportTargetSprite != EntityId::null)
            {
                auto entity = EntityManager::get<EntityBase>(config->viewportTargetSprite);

                int z = (TileManager::getHeight(entity->position).landHeight) - 16;
                bool underground = (entity->position.z < z);

                viewportSetUndergroundFlag(underground, viewport);

                centre = viewport->centre2dCoordinates(entity->position + Pos3{ 0, 0, 12 });
            }
            else
            {
                int16_t midX = config->savedViewX + (viewport->viewWidth / 2);
                int16_t midY = config->savedViewY + (viewport->viewHeight / 2);

                World::Pos2 mapCoord = viewportCoordToMapCoord(midX, midY, 128, viewport->getRotation());
                viewportSetUndergroundFlag(false, viewport);

                bool atMapEdge = false;
                if (mapCoord.x < -256)
                {
                    mapCoord.x = -256;
                    atMapEdge = true;
                }
                if (mapCoord.y < -256)
                {
                    mapCoord.y = -256;
                    atMapEdge = true;
                }
                if (mapCoord.x > 0x30FE)
                {
                    mapCoord.x = 0x30FE;
                    atMapEdge = true;
                }
                if (mapCoord.y > 0x30FE)
                {
                    mapCoord.y = 0x30FE;
                    atMapEdge = true;
                }

                if (atMapEdge)
                {
                    auto coord_2d = gameToScreen({ mapCoord.x, mapCoord.y, 128 }, viewport->getRotation());