[1.12] Open GuiScreen on connect

[THEJean_Kevin]

Hello,

 

I would like to open a GuiScreen when the player login but currently  the Gui doesn't open when the player connects

 

EventHandler : (register with FMLCommonHandler.instance().bus().register(eventHandler);)

Spoiler

@SubscribeEvent
	public void JoinWorld(EntityJoinWorldEvent event) {
		if (event.getEntity() instanceof EntityPlayer) {

			EntityPlayer player = (EntityPlayer) event.getEntity();
			if (player.world.isRemote) {

				player.openGui(IdPlayer.instance, ModGuiHandler.LANGUAGE, player.world, (int) player.posX,
						(int) player.posY, (int) player.posZ);
			}
		}
	}

 

 

GuiHandler :

Spoiler

public class ModGuiHandler implements IGuiHandler {
	public static final int LANGUAGE = 0;

	@Override
	public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {

		return null;

	}

	@Override
	public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
		switch (ID) {
		case LANGUAGE:
			return new GuiLanguage();
		default:
			return null;
		}
	}

}

 

 

Gui :

Spoiler

public class GuiLanguage extends GuiScreen {
	private static final ResourceLocation BG_TEXTURE = new ResourceLocation(Reference.MODID,
			"textures/gui/idbackgroundlanguage.png");

	protected final int xSize = 256;
	protected final int ySize = 256;
	
	private int guiLeft;
	private int guiTop;

	// button
	private final int fr = 0;
	private final int en = 1;
	private final int valid = 2;

	// variable
	private String validString;

	
	@Override
	public void drawScreen(int mouseX, int mouseY, float partialTicks) {
		GlStateManager.color(1, 1, 1, 1);
		mc.getTextureManager().bindTexture(BG_TEXTURE);
		int x = (width - this.xSize) / 2;
		int y = (height - this.ySize) / 2;
		drawTexturedModalRect(x, y, 0, 0, this.xSize, this.ySize);
		super.drawScreen(mouseX, mouseY, partialTicks);
	}

	@Override
	public boolean doesGuiPauseGame() {
		return false;
	}

	@Override
	public void initGui() {
		
		this.guiLeft = (this.width - this.xSize) / 2;
		this.guiTop = (this.height - this.ySize) / 2;

		this.buttonList.clear();
		this.buttonList.add(new GuiButton(this.fr, this.guiLeft + 74, this.guiTop + 118, 50, 15, "Francais"));
		this.buttonList.add(new GuiButton(this.en, this.guiLeft + 131, this.guiTop + 118, 50, 15, "English"));
	
		super.initGui();
	}
	
	

	@Override
	protected void actionPerformed(GuiButton button) throws IOException {
		switch (button.id) {
		case fr:
			validString = "valider";
			break;
		case en:
			validString = "valid";
			break;
		default:
			break;

		}
		
		this.buttonList.clear();
		this.buttonList.add(new GuiButton(this.fr, this.guiLeft + 74, this.guiTop + 118, 50, 15, "Francais"));
		this.buttonList.add(new GuiButton(this.en, this.guiLeft + 131, this.guiTop + 118, 50, 15, "English"));
		this.buttonList.add(new GuiButton(this.valid, this.guiLeft + 103, this.guiTop + 148, 50, 15, validString));
	}
}

 

 

[THEJean_Kevin]

• I used IGuiHandler because I read EntityJoinWorldEvent it's a server event and GuiScreen it's only client (so it's for this reason I used player.openGui)
• This Gui show a menu for choose language. I would like to open this GUI when player join the server for the first time

[THEJean_Kevin]

Ty for information, but do you have an exemple to use packet (I never used this before)