Java 类net.minecraft.client.gui.GuiSlot 实例源码

private static void setSelectedID(GuiListExtended list, int id) {
    Field field;
    try{
        if(list instanceof GuiListWorldSelection) {
            field = GuiListWorldSelection.class.getDeclaredField("selectedIdx");
        } else {
            field = GuiSlot.class.getDeclaredField("selectedElement");
        }
        field.setAccessible(true);
        field.set(list, id);
        if(list instanceof GuiListWorldSelection) {
            ((GuiListWorldSelection) list).selectWorld(id);
        }
    } catch (Exception e) {
        throw new RuntimeException("Error accessing index field!", e);
    }
}

private static boolean isSelected(GuiListExtended list, int id) {
    try {
        Method method = GuiSlot.class.getDeclaredMethod("isSelected", int.class);
        method.setAccessible(true);
        return (boolean) method.invoke(list, id);
    } catch (Exception e) {
        throw new RuntimeException("Error accessing getSize()-Method!", e);
    }
}

private static int getListSize(GuiListExtended list) {
    try {
        Method method = GuiSlot.class.getDeclaredMethod("getSize");
        method.setAccessible(true);
        return (int) method.invoke(list);
    } catch (Exception e) {
        throw new RuntimeException("Error accessing getSize()-Method!", e);
    }
}

public SlotClicked(List<GuiButton> buttonList, GuiSlot slotClicked)
{
    super(buttonList);
    this.slotClicked = slotClicked;
}