1.20.1 port #736 override solid substitution

src/main/java/com/ldtteam/structurize/client/BlueprintRenderer.java

@@ -123,6 +123,7 @@ private void init(final BlueprintPreviewData previewData, final Map<Object, Exce
 
         blockAccess.setBlockEntities(tileEntitiesMap);
         blockAccess.setEntities(entities);
+        blockAccess.setSolidSubstitutionOverride(previewData.getSolidSubstitutionOverride());
 
         final PoseStack matrixStack = new PoseStack();
         matrixStack.translate(0.01, 0.01, 0.01);
@@ -197,6 +198,8 @@ private void init(final BlueprintPreviewData previewData, final Map<Object, Exce
             }
         }
 
+        blockAccess.setSolidSubstitutionOverride(null);
+
         vertexBuffers = blockVertexBuffersFactory.get();
         for (final RenderType renderType : blockRenderTypes)
         {

src/main/java/com/ldtteam/structurize/client/fakelevel/BlueprintBlockAccess.java

@@ -22,6 +22,11 @@ public class BlueprintBlockAccess extends FakeLevel
     public static final IFakeLevelLightProvider LIGHT_PROVIDER = new ConfigBasedLightProvider(Structurize.getConfig().getClient().rendererLightLevel);
     private static final Scoreboard SCOREBOARD = new Scoreboard();
 
+    /**
+     * Override blockstate for solid placeholders
+     */
+    private BlockState solidSubstitutionOverride = null;
+
     public BlueprintBlockAccess(final Blueprint blueprint)
     {
         super(blueprint, LIGHT_PROVIDER, SCOREBOARD, true);
@@ -50,6 +55,10 @@ public BlockState prepareBlockStateForRendering(final BlockState state, final Bl
         {
             if (state.getBlock() == ModBlocks.blockSolidSubstitution.get())
             {
+                if (solidSubstitutionOverride != null)
+                {
+                    return solidSubstitutionOverride;
+                }
                 return BlockUtils.getSubstitutionBlockAtWorld(anyLevel(), worldPos.offset(pos), levelSource.getRawBlockStateFunction().compose(b -> b.subtract(worldPos)));
             }
             else if (state.getBlock() == ModBlocks.blockFluidSubstitution.get())
@@ -72,4 +81,14 @@ else if (state.getBlock() == ModBlocks.blockTagSubstitution.get())
 
         return state;
     }
+
+    /**
+     * Set the solid placeholder blockstate override, only updates when the renderer is recalculated
+     *
+     * @return
+     */
+    public void setSolidSubstitutionOverride(final BlockState solidSubstitutionOverride)
+    {
+        this.solidSubstitutionOverride = solidSubstitutionOverride;
+    }
 }

src/main/java/com/ldtteam/structurize/storage/rendering/types/BlueprintPreviewData.java

@@ -14,6 +14,7 @@
 import net.minecraft.util.Mth;
 import net.minecraft.world.level.block.Mirror;
 import net.minecraft.world.level.block.Rotation;
+import net.minecraft.world.level.block.state.BlockState;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import org.jetbrains.annotations.Nullable;
@@ -77,6 +78,11 @@ public class BlueprintPreviewData
      */
     private boolean renderBlocksNice = Structurize.getConfig().getClient() != null && Structurize.getConfig().getClient().renderPlaceholdersNice.get();
 
+    /**
+     * Override blockstate for solid placeholders
+     */
+    private BlockState solidSubstitutionOverride = null;
+
     /**
      * Default constructor to create a new setup.
      */
@@ -429,4 +435,24 @@ public float getOverridePreviewTransparency()
     {
         return overridePreviewTransparency;
     }
+
+    /**
+     * Get the solid placeholder blockstate override
+     *
+     * @return
+     */
+    public BlockState getSolidSubstitutionOverride()
+    {
+        return solidSubstitutionOverride;
+    }
+
+    /**
+     * Set the solid placeholder blockstate override, only updates when the renderer is recalculated
+     *
+     * @return
+     */
+    public void setSolidSubstitutionOverride(final BlockState solidSubstitutionOverride)
+    {
+        this.solidSubstitutionOverride = solidSubstitutionOverride;
+    }
 }