Expand preview for full orbit

README.md

@@ -26,7 +26,7 @@ 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 server-validated 9-by-7-by-17 snapshot around
+Bound Linking Books request a server-validated 17-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.

docs/PORTING.md

@@ -123,10 +123,12 @@ component serialization, successful safe travel with restored orientation, and
 rejection of fully blocked destinations. The test suite uses a minimal bundled
 structure template and runs with `./gradlew runGameTestServer`.
 
+Version 0.1.16 makes destination previews sample a centered 17-by-7-by-17
+volume. The Ponder scene uses a scale that keeps its full horizontal diagonal
+inside the panel, so the complete snapshot remains available during its orbit.
+
 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
-that level with the destination blocks.
+Ponder level populated from server-authoritative destination snapshots.
 
 ## Version policy
 

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=0.1.15
+mod_version=0.1.16
 # 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

@@ -43,7 +43,7 @@ public final class PonderDestinationPreviewRenderer implements DestinationPrevie
     public PonderDestinationPreviewRenderer() {
         Minecraft minecraft = Minecraft.getInstance();
         previewLevel = new PonderLevel(BlockPos.ZERO, minecraft.level);
-        selection = SelectionImpl.of(new BoundingBox(0, 0, 0, 8, 6, 16));
+        selection = SelectionImpl.of(new BoundingBox(0, 0, 0, 16, 6, 16));
         section = new WorldSectionElementImpl(selection);
     }
 
@@ -105,8 +105,10 @@ 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(7.0F, 7.0F, 7.0F);
-        poseStack.translate(-4.5F, -1.5F, -8.5F);
+        // A 17×17 footprint has a 24-block diagonal. This scale fits that
+        // diagonal in the panel, including at the 45° points of the orbit.
+        poseStack.scale(4.6F, 4.6F, 4.6F);
+        poseStack.translate(-8.5F, -1.5F, -8.5F);
 
         SuperRenderTypeBuffer buffer = DefaultSuperRenderTypeBuffer.getInstance();
         section.renderFirst(previewLevel, buffer, graphics, partialTick);

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

@@ -12,7 +12,8 @@ import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.state.BlockState;
 
 public record LinkPreviewPayload(int skyColor, List<SnapshotBlock> blocks) implements CustomPacketPayload {
-    private static final int MAX_BLOCKS = 9 * 7 * 17;
+    /** A square footprint keeps every side of the scene available during a full orbit. */
+    private static final int MAX_BLOCKS = 17 * 7 * 17;
     public static final Type<LinkPreviewPayload> TYPE = new Type<>(
             ResourceLocation.fromNamespaceAndPath(Rivencraft.MOD_ID, "link_preview")
     );

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

@@ -114,10 +114,12 @@ public final class ModNetworking {
 
         BlockPos origin = target.location().pos();
         List<LinkPreviewPayload.SnapshotBlock> blocks = new ArrayList<>();
-        for (BlockPos pos : BlockPos.betweenClosed(origin.offset(-4, -2, -8), origin.offset(4, 4, 8))) {
+        // The preview rotates through a complete orbit. Use the same radius on
+        // both horizontal axes so no side falls outside the snapshot at 90°.
+        for (BlockPos pos : BlockPos.betweenClosed(origin.offset(-8, -2, -8), origin.offset(8, 4, 8))) {
             var state = level.getBlockState(pos);
             if (!state.isAir()) {
-                blocks.add(new LinkPreviewPayload.SnapshotBlock(pos.subtract(origin).offset(4, 2, 8), state));
+                blocks.add(new LinkPreviewPayload.SnapshotBlock(pos.subtract(origin).offset(8, 2, 8), state));
             }
         }
         int skyColor = level.getBiome(origin).value().getSkyColor();