Expand and color destination previews

README.md

@@ -26,9 +26,10 @@ right-clicking with an empty hand. Sneak-right-click with an empty hand to take
 the book back and restore the vanilla lectern. Breaking a Book Stand drops both
 the stored book and a vanilla lectern.
 
-Bound Linking Books request a small, server-validated snapshot around their
-destination and render its blocks as a rotating Ponder scene on the left page.
-The snapshot is visual only; the server independently validates every link.
+Bound Linking Books request a server-validated 9-by-7-by-17 snapshot around
+their destination and render its blocks as a rotating Ponder scene on the left
+page, backed by the destination biome's sky color. The snapshot is visual only;
+the server independently validates every link.
 
 ## Requirements
 

docs/PORTING.md

@@ -114,6 +114,10 @@ Version 0.1.13 requests a bounded, server-validated 9-by-7-by-9 block snapshot
 from the held book or nearby Book Stand and renders it as a clipped, rotating
 Ponder world section on the Linking Book's left page.
 
+Version 0.1.14 expands the destination snapshot to 9-by-7-by-17 blocks along
+the Z axis, rescales the rotating scene to expose that depth, and colors the
+panel background with the destination biome's sky color.
+
 The preview code is separated behind a renderer interface and uses an isolated
 Ponder level. The first iteration supplies the animated loading boundary; the
 next iteration will add server-authoritative snapshot transport and populate

gradle.properties

@@ -33,7 +33,7 @@ mod_name=Rivencraft
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=LGPL-3.0-or-later
 # The mod version. See https://semver.org/
-mod_version=0.1.13
+mod_version=0.1.14
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html

src/main/java/net/dnorberg/rivencraft/client/preview/PonderDestinationPreviewRenderer.java

@@ -38,11 +38,12 @@ public final class PonderDestinationPreviewRenderer implements DestinationPrevie
     private final PonderSceneElement section;
     private int ticks;
     private boolean loaded;
+    private int backgroundColor = 0xFF080C18;
 
     public PonderDestinationPreviewRenderer() {
         Minecraft minecraft = Minecraft.getInstance();
         previewLevel = new PonderLevel(BlockPos.ZERO, minecraft.level);
-        selection = SelectionImpl.of(new BoundingBox(0, 0, 0, 8, 6, 8));
+        selection = SelectionImpl.of(new BoundingBox(0, 0, 0, 8, 6, 16));
         section = new WorldSectionElementImpl(selection);
     }
 
@@ -51,6 +52,7 @@ public final class PonderDestinationPreviewRenderer implements DestinationPrevie
         selection.forEach(pos -> previewLevel.setBlock(pos, Blocks.AIR.defaultBlockState(), 2));
         payload.blocks().forEach(block -> previewLevel.setBlock(block.pos(), block.state(), 2));
         ((net.createmod.ponder.api.element.WorldSectionElement)section).queueRedraw();
+        backgroundColor = 0xFF000000 | payload.skyColor() & 0x00FFFFFF;
         loaded = true;
     }
 
@@ -62,7 +64,7 @@ public final class PonderDestinationPreviewRenderer implements DestinationPrevie
 
     @Override
     public void render(GuiGraphics graphics, int left, int top, int width, int height, float partialTick) {
-        graphics.fill(left, top, left + width, top + height, 0xFF080C18);
+        graphics.fill(left, top, left + width, top + height, backgroundColor);
         graphics.renderOutline(left, top, width, height, 0xFF7B6AA8);
 
         if (loaded) {
@@ -103,8 +105,8 @@ public final class PonderDestinationPreviewRenderer implements DestinationPrevie
         poseStack.mulPose(Axis.XP.rotationDegrees(-28.0F));
         poseStack.mulPose(Axis.YP.rotationDegrees((ticks + partialTick) * 0.6F));
         UIRenderHelper.flipForGuiRender(poseStack);
-        poseStack.scale(10.0F, 10.0F, 10.0F);
-        poseStack.translate(-4.5F, -1.5F, -4.5F);
+        poseStack.scale(7.0F, 7.0F, 7.0F);
+        poseStack.translate(-4.5F, -1.5F, -8.5F);
 
         SuperRenderTypeBuffer buffer = DefaultSuperRenderTypeBuffer.getInstance();
         section.renderFirst(previewLevel, buffer, graphics, partialTick);

src/main/java/net/dnorberg/rivencraft/network/LinkPreviewPayload.java

@@ -11,13 +11,14 @@ import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.state.BlockState;
 
-public record LinkPreviewPayload(List<SnapshotBlock> blocks) implements CustomPacketPayload {
-    private static final int MAX_BLOCKS = 9 * 7 * 9;
+public record LinkPreviewPayload(int skyColor, List<SnapshotBlock> blocks) implements CustomPacketPayload {
+    private static final int MAX_BLOCKS = 9 * 7 * 17;
     public static final Type<LinkPreviewPayload> TYPE = new Type<>(
             ResourceLocation.fromNamespaceAndPath(Rivencraft.MOD_ID, "link_preview")
     );
     public static final StreamCodec<RegistryFriendlyByteBuf, LinkPreviewPayload> STREAM_CODEC = StreamCodec.of(
             (buffer, payload) -> {
+                buffer.writeInt(payload.skyColor);
                 buffer.writeVarInt(payload.blocks.size());
                 for (SnapshotBlock block : payload.blocks) {
                     buffer.writeBlockPos(block.pos);
@@ -25,6 +26,7 @@ public record LinkPreviewPayload(List<SnapshotBlock> blocks) implements CustomPa
                 }
             },
             buffer -> {
+                int skyColor = buffer.readInt();
                 int size = buffer.readVarInt();
                 if (size < 0 || size > MAX_BLOCKS) {
                     throw new IllegalArgumentException("Invalid link preview size: " + size);
@@ -33,7 +35,7 @@ public record LinkPreviewPayload(List<SnapshotBlock> blocks) implements CustomPa
                 for (int i = 0; i < size; i++) {
                     blocks.add(new SnapshotBlock(buffer.readBlockPos(), Block.stateById(buffer.readVarInt())));
                 }
-                return new LinkPreviewPayload(List.copyOf(blocks));
+                return new LinkPreviewPayload(skyColor, List.copyOf(blocks));
             }
     );
 

src/main/java/net/dnorberg/rivencraft/network/ModNetworking.java

@@ -30,7 +30,7 @@ public final class ModNetworking {
     }
 
     public static void register(RegisterPayloadHandlersEvent event) {
-        PayloadRegistrar registrar = event.registrar("2");
+        PayloadRegistrar registrar = event.registrar("3");
         registrar.playToServer(BindLinkingBookPayload.TYPE, BindLinkingBookPayload.STREAM_CODEC, ModNetworking::bindBook);
         registrar.playToServer(UseLinkingBookPayload.TYPE, UseLinkingBookPayload.STREAM_CODEC, ModNetworking::useBook);
         registrar.playToServer(UseBookStandPayload.TYPE, UseBookStandPayload.STREAM_CODEC, ModNetworking::useBookStand);
@@ -114,13 +114,14 @@ public final class ModNetworking {
 
         BlockPos origin = target.location().pos();
         List<LinkPreviewPayload.SnapshotBlock> blocks = new ArrayList<>();
-        for (BlockPos pos : BlockPos.betweenClosed(origin.offset(-4, -2, -4), origin.offset(4, 4, 4))) {
+        for (BlockPos pos : BlockPos.betweenClosed(origin.offset(-4, -2, -8), origin.offset(4, 4, 8))) {
             var state = level.getBlockState(pos);
             if (!state.isAir()) {
-                blocks.add(new LinkPreviewPayload.SnapshotBlock(pos.subtract(origin).offset(4, 2, 4), state));
+                blocks.add(new LinkPreviewPayload.SnapshotBlock(pos.subtract(origin).offset(4, 2, 8), state));
             }
         }
-        PacketDistributor.sendToPlayer(player, new LinkPreviewPayload(List.copyOf(blocks)));
+        int skyColor = level.getBiome(origin).value().getSkyColor();
+        PacketDistributor.sendToPlayer(player, new LinkPreviewPayload(skyColor, List.copyOf(blocks)));
     }
 
     private static InteractionHand hand(boolean offhand) {