Method PositionForViewport

src/intro_gui.cpp:78–97

* Calculate effective position. * This will update the position field if a vehicle is followed. * @param vp Viewport to calculate position for. * @return Calculated position in the viewport. */

	 * @return Calculated position in the viewport.
	 */
	Point PositionForViewport(const Viewport &vp)
	{
		if (this->vehicle != VehicleID::Invalid()) {
			const Vehicle *v = Vehicle::Get(this->vehicle);
			this->position = RemapCoords(v->x_pos, v->y_pos, v->z_pos);
		}

		Point p;
		switch (this->align_h) {
			case LEFT: p.x = this->position.x; break;
			case CENTRE: p.x = this->position.x - vp.virtual_width / 2; break;
			case RIGHT: p.x = this->position.x - vp.virtual_width; break;
		}
		switch (this->align_v) {
			case TOP: p.y = this->position.y; break;
			case MIDDLE: p.y = this->position.y - vp.virtual_height / 2; break;
			case BOTTOM: p.y = this->position.y - vp.virtual_height; break;
		}
		return p;
	}
};