Differences

This shows you the differences between two versions of the page.

--- zh_cn:tutorial:extendedscreenhandler [2022/02/10 13:19] – [使用扩展的 ScreenHandler 同步数据] timothy_starman
+++ zh_cn:tutorial:extendedscreenhandler [2022/02/10 13:26] – 注册我们的 ScreenHandler timothy_starman
@@ Line 104: / Line 104: @@
     @Override
     public ItemStack transferSlot(PlayerEntity player, int invSlot);
+}
+</code>
+====== 在 Screen 中使用 ExtendedScreenHandler 信息 ======
+<code java [enable_line_numbers="true"] BoxScreen.java>
+public class BoxScreen extends HandledScreen<ScreenHandler> {
+    private static final Identifier TEXTURE = new Identifier("minecraft", "textures/gui/container/dispenser.png");
+    public BoxScreen(ScreenHandler handler, PlayerInventory inventory, Text title) {
+        super(handler, inventory, getPositionText(handler).orElse(title));
+        //我们尝试获取方块位置以将其用作我们的标题，如果由于某种原因失败，我们将使用默认标题
+    }
+    //此方法将尝试从 ScreenHandler 获取位置，因为 ScreenRendering 仅发生在客户端上，
+    //我们在此处获取具有正确 BlockPos 的 ScreenHandler 实例！
+    private static Optional<Text> getPositionText(ScreenHandler handler) {
+        if (handler instanceof BoxScreenHandler) {
+            BlockPos pos = ((BoxScreenHandler) handler).getPos();
+            return pos != null ? Optional.of(new LiteralText("(" + pos.toShortString() + ")")) : Optional.empty();
+        } else {
+            return Optional.empty();
+        }
+    }
+    @Override
+    protected void drawBackground(MatrixStack matrices, float delta, int mouseX, int mouseY) { [...] }
+    @Override
+    public void render(MatrixStack matrices, int mouseX, int mouseY, float delta) { [...] }
+    @Override
+    protected void init() { [...] }
+}
+</code>
+====== 注册我们的 ScreenHandler ======
+<code java [enable_line_numbers="true"] ExampleMod.java>
+public class ExampleMod implements ModInitializer {
+    [...]
+    public static final ScreenHandlerType<BoxScreenHandler> BOX_SCREEN_HANDLER;
+    static {
+        [...]
+        //我们现在使用 registerExtended 作为我们的 screenHandler 现在在其构造函数中接受一个 packetByteBuf
+        BOX_SCREEN_HANDLER = ScreenHandlerRegistry.registerExtended(BOX, BoxScreenHandler::new);
+    }
+    @Override
+    public void onInitialize() {
+    }
 }
 </code>