tutorial:extendedscreenhandler
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tutorial:extendedscreenhandler [2020/08/14 16:18] – [BlockEntity] manymoney2 | tutorial:extendedscreenhandler [2022/12/17 15:38] (current) – [Registering our ScreenHandler] registry (f***) miir | ||
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====== Syncing Custom Data with Extended ScreenHandlers ====== | ====== Syncing Custom Data with Extended ScreenHandlers ====== | ||
- | In this tutorial we will use the ExtendedScreenHandler to transfer arbitary data from the Server | + | In this tutorial we will use the ExtendedScreenHandler to transfer arbitary data from the server |
- | In our example we will send the position of the block and render it as the containers | + | In our example we will send the position of the block and render it as the container' |
To understand this tutorial you need to read the first [[tutorial: | To understand this tutorial you need to read the first [[tutorial: | ||
- | Methods which have no code here were already shown in that tutorial | + | Methods which have no code here were already shown in that tutorial. |
====== BlockEntity ====== | ====== BlockEntity ====== | ||
As the Block class does not need to be changed at all we leave it out here. | As the Block class does not need to be changed at all we leave it out here. | ||
- | Our blockEntity | + | Our block entity |
<code java [enable_line_numbers=" | <code java [enable_line_numbers=" | ||
Line 41: | Line 41: | ||
@Override | @Override | ||
public Text getDisplayName() { | public Text getDisplayName() { | ||
+ | // versions 1.18 and below | ||
return new TranslatableText(getCachedState().getBlock().getTranslationKey()); | return new TranslatableText(getCachedState().getBlock().getTranslationKey()); | ||
+ | | ||
+ | // versions 1.19 and later | ||
+ | return Text.translatable(getCachedState().getBlock().getTranslationKey()); | ||
} | } | ||
Line 60: | Line 64: | ||
</ | </ | ||
- | ====== Our new ScreenHandler | + | ====== Our new ExtendedScreenHandler |
- | <code java [enable_line_numbers=" | + | <code java [enable_line_numbers=" |
public class BoxScreenHandler extends ScreenHandler { | public class BoxScreenHandler extends ScreenHandler { | ||
//We save the blockPos we got from the Server and provide a getter for it so the BoxScreen can read that information | //We save the blockPos we got from the Server and provide a getter for it so the BoxScreen can read that information | ||
Line 82: | Line 86: | ||
public BoxScreenHandler(int syncId, PlayerInventory playerInventory, | public BoxScreenHandler(int syncId, PlayerInventory playerInventory, | ||
//[...] | //[...] | ||
- | // See [[tutorial: | + | // See first Screenhandler Tutorial for the rest of the code |
| | ||
//Why do we use BlockPos.ORIGIN here? | //Why do we use BlockPos.ORIGIN here? | ||
Line 93: | Line 97: | ||
} | } | ||
+ | //this getter will be used by our Screen class | ||
public BlockPos getPos() { | public BlockPos getPos() { | ||
return pos; | return pos; | ||
Line 102: | Line 107: | ||
} | } | ||
- | // See [[tutorial: | + | // See Screenhandler Tutorial |
// Shift + Player Inv Slot | // Shift + Player Inv Slot | ||
@Override | @Override | ||
Line 108: | Line 113: | ||
} | } | ||
</ | </ | ||
+ | |||
+ | ====== Using the Information of the ExtendedScreenHandler in our Screen ====== | ||
+ | |||
+ | <code java [enable_line_numbers=" | ||
+ | |||
+ | public class BoxScreen extends HandledScreen< | ||
+ | private static final Identifier TEXTURE = new Identifier(" | ||
+ | |||
+ | public BoxScreen(ScreenHandler handler, PlayerInventory inventory, Text title) { | ||
+ | super(handler, | ||
+ | //We try to get the block position to use it as our title, if that fails for some reason we will use the default title | ||
+ | } | ||
+ | |||
+ | //This method will try to get the Position from the ScreenHandler, | ||
+ | //get the ScreenHandler instance here which has the correct BlockPos in it! | ||
+ | private static Optional< | ||
+ | if (handler instanceof BoxScreenHandler) { | ||
+ | BlockPos pos = ((BoxScreenHandler) handler).getPos(); | ||
+ | // for versions 1.18.2 and below, use `new LiteralText` | ||
+ | return pos != null ? Optional.of(Text.literal(" | ||
+ | } 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() { [...] } | ||
+ | } | ||
+ | |||
+ | </ | ||
+ | |||
+ | ====== Registering our ScreenHandler ====== | ||
+ | |||
+ | <code java [enable_line_numbers=" | ||
+ | public class ExampleMod implements ModInitializer { | ||
+ | |||
+ | [...] | ||
+ | public static final ScreenHandlerType< | ||
+ | |||
+ | static { | ||
+ | [...] | ||
+ | |||
+ | //we now use registerExtended as our screenHandler now accepts a packetByteBuf in its Constructor | ||
+ | BOX_SCREEN_HANDLER = Registry.register(Registries.SCREEN_HANDLER, | ||
+ | } | ||
+ | |||
+ | @Override | ||
+ | public void onInitialize() { | ||
+ | |||
+ | } | ||
+ | } | ||
+ | </ | ||
+ | |||
+ | ====== Result ====== | ||
+ | You have now seen how to transfer data when the ScreenHandler is opened. In the image you can see the result: The Block' | ||
+ | there are easier ways of setting the position as the title. | ||
+ | |||
+ | You might be wondering: //Can I transfer this data again even after the Screen was opened?// | ||
+ | This is possible by sending custom Packets (see: [[tutorial: | ||
+ | You might also want to have a look at the '' | ||
+ | |||
+ | If you only want to sync integer values you can use '' | ||
+ | |||
+ | {{: | ||
+ | |||
tutorial/extendedscreenhandler.txt · Last modified: 2022/12/17 15:38 by miir