Probably more thread safe (#1501)

src/main/java/appeng/api/parts/IPartCollisionHelper.java

@@ -13,6 +13,7 @@
 
 package appeng.api.parts;
 
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 public interface IPartCollisionHelper {
@@ -50,4 +51,8 @@ public interface IPartCollisionHelper {
      * @return true if this test is to get the BB Collision information.
      */
     boolean isBBCollision();
+
+    default IBlockAccess getBlockAccess() {
+        return null;
+    }
 }

src/main/java/appeng/api/parts/IPartRenderHelper.java

@@ -18,6 +18,7 @@ import java.util.EnumSet;
 import net.minecraft.block.Block;
 import net.minecraft.client.renderer.RenderBlocks;
 import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import cpw.mods.fml.relauncher.Side;
@@ -189,4 +190,8 @@ public interface IPartRenderHelper {
      * @param complementOf sides to render
      */
     void setFacesToRender(EnumSet<ForgeDirection> complementOf);
+
+    default IBlockAccess getBlockAccess() {
+        return null;
+    }
 }

src/main/java/appeng/client/render/BusRenderHelper.java

@@ -18,6 +18,7 @@ import net.minecraft.block.Block;
 import net.minecraft.client.renderer.RenderBlocks;
 import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import com.google.common.base.Function;
@@ -190,6 +191,11 @@ public final class BusRenderHelper implements IPartRenderHelper {
         public boolean isBBCollision() {
             return false;
         }
+
+        @Override
+        public IBlockAccess getBlockAccess() {
+            return BusRenderHelper.this.getBlockAccess();
+        }
     }
 
     private static final class BaseBlockTransformFunction implements Function<Block, AEBaseBlock> {
@@ -606,4 +612,9 @@ public final class BusRenderHelper implements IPartRenderHelper {
     public ForgeDirection getWorldZ() {
         return this.az;
     }
+
+    @Override
+    public IBlockAccess getBlockAccess() {
+        return BusRenderer.INSTANCE.getRenderer().blockAccess;
+    }
 }

src/main/java/appeng/client/render/CableRenderHelper.java

@@ -17,6 +17,7 @@ import java.util.List;
 import net.minecraft.client.Minecraft;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.AxisAlignedBB;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import appeng.api.parts.IFacadeContainer;
@@ -35,6 +36,11 @@ public class CableRenderHelper {
     }
 
     public void renderStatic(final CableBusContainer cableBusContainer, final IFacadeContainer iFacadeContainer) {
+        this.renderStatic(cableBusContainer, iFacadeContainer, Minecraft.getMinecraft().theWorld);
+    }
+
+    public void renderStatic(final CableBusContainer cableBusContainer, final IFacadeContainer iFacadeContainer,
+            final IBlockAccess world) {
         final TileEntity te = cableBusContainer.getTile();
         final RenderBlocksWorkaround renderer = BusRenderer.INSTANCE.getRenderer();
         final BusRenderHelper busRenderHelper = BusRenderHelper.instances.get();
@@ -42,7 +48,7 @@ public class CableRenderHelper {
             busRenderHelper.setPass(0);
         }
 
-        renderer.blockAccess = Minecraft.getMinecraft().theWorld;
+        renderer.blockAccess = world;
 
         for (final ForgeDirection s : FORGE_DIRECTIONS) {
             final IPart part = cableBusContainer.getPart(s);
@@ -77,7 +83,8 @@ public class CableRenderHelper {
                             busRenderHelper.getWorldY(),
                             busRenderHelper.getWorldZ(),
                             null,
-                            true);
+                            true,
+                            world);
                     part.getBoxes(bch);
                 }
             }
@@ -198,6 +205,7 @@ public class CableRenderHelper {
             final double z) {
         final RenderBlocksWorkaround renderer = BusRenderer.INSTANCE.getRenderer();
         final BusRenderHelper busRenderHelper = BusRenderHelper.instances.get();
+        renderer.blockAccess = cableBusContainer.getTile().getWorldObj();
         for (final ForgeDirection s : FORGE_DIRECTIONS) {
             final IPart part = cableBusContainer.getPart(s);
 
@@ -248,5 +256,6 @@ public class CableRenderHelper {
                 part.renderDynamic(x, y, z, busRenderHelper, renderer);
             }
         }
+        renderer.blockAccess = null;
     }
 }

src/main/java/appeng/client/render/RenderBlocksWorkaround.java

@@ -497,7 +497,7 @@ public class RenderBlocksWorkaround extends RenderBlocks {
             for (int j = -1; j <= 1; j++) {
                 for (int k = -1; k <= 1; k++) {
 
-                    this.lightHashTmp[o] = blk.getMixedBrightnessForBlock(this.blockAccess, x + i, y + j, z + k);
+                    this.lightHashTmp[o] = blk.getMixedBrightnessForBlock(w, x + i, y + j, z + k);
                     o++;
                 }
             }

src/main/java/appeng/client/render/blocks/RenderBlockWireless.java

@@ -32,13 +32,6 @@ import appeng.util.Platform;
 
 public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWireless> {
 
-    private int centerX = 0;
-    private int centerY = 0;
-    private int centerZ = 0;
-    private BlockWireless blk;
-    private boolean hasChan = false;
-    private boolean hasPower = false;
-
     public RenderBlockWireless() {
         super(false, 20);
     }
@@ -46,13 +39,6 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
     @Override
     public void renderInventory(final BlockWireless blk, final ItemStack is, final RenderBlocks renderer,
             final ItemRenderType type, final Object[] obj) {
-        this.blk = blk;
-        this.centerX = 0;
-        this.centerY = 0;
-        this.centerZ = 0;
-        this.hasChan = false;
-        this.hasPower = false;
-
         final BlockRenderInfo ri = blk.getRendererInstance();
         final Tessellator tess = Tessellator.instance;
 
@@ -102,7 +88,16 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
 
         tess.startDrawingQuads();
         ri.setTemporaryRenderIcon(null);
-        this.renderTorchAtAngle(renderer, ForgeDirection.EAST, ForgeDirection.UP, ForgeDirection.SOUTH);
+        this.renderTorchAtAngle(
+                renderer,
+                blk,
+                false,
+                0,
+                0,
+                0,
+                ForgeDirection.EAST,
+                ForgeDirection.UP,
+                ForgeDirection.SOUTH);
         super.postRenderInWorld(renderer);
         tess.draw();
 
@@ -156,12 +151,11 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
     public boolean renderInWorld(final BlockWireless blk, final IBlockAccess world, final int x, final int y,
             final int z, final RenderBlocks renderer) {
         final TileWireless tw = blk.getTileEntity(world, x, y, z);
-        this.blk = blk;
 
         if (tw != null) {
-            this.hasChan = (tw.getClientFlags() & (TileWireless.POWERED_FLAG | TileWireless.CHANNEL_FLAG))
+            final boolean hasChan = (tw.getClientFlags() & (TileWireless.POWERED_FLAG | TileWireless.CHANNEL_FLAG))
                     == (TileWireless.POWERED_FLAG | TileWireless.CHANNEL_FLAG);
-            this.hasPower = (tw.getClientFlags() & TileWireless.POWERED_FLAG) == TileWireless.POWERED_FLAG;
+            final boolean hasPower = (tw.getClientFlags() & TileWireless.POWERED_FLAG) == TileWireless.POWERED_FLAG;
 
             final BlockRenderInfo ri = blk.getRendererInstance();
 
@@ -193,12 +187,9 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
             this.renderBlockBounds(renderer, 5, 5, 1, 11, 11, 2, fdx, fdy, fdz);
             super.renderInWorld(blk, world, x, y, z, renderer);
 
-            this.centerX = x;
-            this.centerY = y;
-            this.centerZ = z;
             ri.setTemporaryRenderIcon(null);
 
-            this.renderTorchAtAngle(renderer, fdx, fdy, fdz);
+            this.renderTorchAtAngle(renderer, blk, hasChan, x, y, z, fdx, fdy, fdz);
             super.postRenderInWorld(renderer);
 
             ri.setTemporaryRenderIcons(
@@ -251,11 +242,11 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
             this.renderBlockBounds(renderer, 5, 5, 0, 11, 11, 1, fdx, fdy, fdz);
 
             final Tessellator tess = Tessellator.instance;
-            if (this.hasChan) {
+            if (hasChan) {
                 final int l = 14;
                 tess.setBrightness(l << 20 | l << 4);
                 tess.setColorOpaque_I(AEColor.Transparent.blackVariant);
-            } else if (this.hasPower) {
+            } else if (hasPower) {
                 final int l = 9;
                 tess.setBrightness(l << 20 | l << 4);
                 tess.setColorOpaque_I(AEColor.Transparent.whiteVariant);
@@ -290,9 +281,10 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
         return true;
     }
 
-    private void renderTorchAtAngle(final RenderBlocks renderer, final ForgeDirection x, final ForgeDirection y,
+    private void renderTorchAtAngle(final RenderBlocks renderer, final BlockWireless blk, final boolean hasChan,
+            final int centerX, final int centerY, final int centerZ, final ForgeDirection x, final ForgeDirection y,
             final ForgeDirection z) {
-        final IIcon r = (this.hasChan ? CableBusTextures.BlockWirelessOn.getIcon() : this.blk.getIcon(0, 0));
+        final IIcon r = (hasChan ? CableBusTextures.BlockWirelessOn.getIcon() : blk.getIcon(0, 0));
         final IIcon sides = new OffsetIcon(r, 0.0f, -2.0f);
 
         switch (z) {
@@ -331,14 +323,14 @@ public class RenderBlockWireless extends BaseBlockRender<BlockWireless, TileWire
 
         Tessellator.instance.setColorOpaque_I(0xffffff);
         this.renderBlockBounds(renderer, 0, 7, 1, 16, 9, 16, x, y, z);
-        this.renderFace(this.centerX, this.centerY, this.centerZ, this.blk, sides, renderer, y);
-        this.renderFace(this.centerX, this.centerY, this.centerZ, this.blk, sides, renderer, y.getOpposite());
+        this.renderFace(centerX, centerY, centerZ, blk, sides, renderer, y);
+        this.renderFace(centerX, centerY, centerZ, blk, sides, renderer, y.getOpposite());
 
         this.renderBlockBounds(renderer, 7, 0, 1, 9, 16, 16, x, y, z);
-        this.renderFace(this.centerX, this.centerY, this.centerZ, this.blk, sides, renderer, x);
-        this.renderFace(this.centerX, this.centerY, this.centerZ, this.blk, sides, renderer, x.getOpposite());
+        this.renderFace(centerX, centerY, centerZ, blk, sides, renderer, x);
+        this.renderFace(centerX, centerY, centerZ, blk, sides, renderer, x.getOpposite());
 
         this.renderBlockBounds(renderer, 7, 7, 1, 9, 9, 10.6, x, y, z);
-        this.renderFace(this.centerX, this.centerY, this.centerZ, this.blk, r, renderer, z);
+        this.renderFace(centerX, centerY, centerZ, blk, r, renderer, z);
     }
 }

src/main/java/appeng/client/render/blocks/RendererCableBus.java

@@ -45,7 +45,7 @@ public class RendererCableBus extends BaseBlockRender<BlockCableBus, TileCableBu
             final RenderBlocksWorkaround rbw = BusRenderer.INSTANCE.getRenderer();
             rbw.renderAllFaces = true;
             rbw.overrideBlockTexture = renderer.overrideBlockTexture;
-            ((TileCableBus) tile).getCableBus().renderStatic(x, y, z);
+            ((TileCableBus) tile).getCableBus().renderStatic(world, x, y, z);
             rbw.renderAllFaces = false;
         }
 

src/main/java/appeng/fmp/CableBusPart.java

@@ -170,7 +170,7 @@ public class CableBusPart extends JCuboidPart implements JNormalOcclusion, IMask
             helper.setPass(pass);
             rb.renderAllFaces = true;
             rb.overrideBlockTexture = null;
-            this.getCableBus().renderStatic(pos.x, pos.y, pos.z);
+            this.getCableBus().renderStatic(this.tile().getWorldObj(), pos.x, pos.y, pos.z);
             return helper.getItemsRendered() > 0;
         }
         return false;

src/main/java/appeng/parts/AEBasePart.java

@@ -28,6 +28,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
 import net.minecraft.util.Vec3;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.Constants.NBT;
 import net.minecraftforge.common.util.ForgeDirection;
@@ -553,6 +554,21 @@ public abstract class AEBasePart implements IPart, IGridProxyable, IActionHost,
         this.renderCache.set(renderCache);
     }
 
+    protected IBlockAccess getRenderWorld(final IPartRenderHelper rh) {
+        final IBlockAccess w = rh.getBlockAccess();
+        return w != null ? w : this.getHostWorld();
+    }
+
+    protected IBlockAccess getRenderWorld(final IPartCollisionHelper bch) {
+        final IBlockAccess w = bch.getBlockAccess();
+        return w != null ? w : this.getHostWorld();
+    }
+
+    private IBlockAccess getHostWorld() {
+        final TileEntity te = this.getTile();
+        return te == null ? null : te.getWorldObj();
+    }
+
     private static int getSideIndexFromDirection(ForgeDirection direction) {
         if (direction == ForgeDirection.UNKNOWN || direction == null) {
             return -1;

src/main/java/appeng/parts/BusCollisionHelper.java

@@ -14,6 +14,7 @@ import java.util.List;
 
 import net.minecraft.entity.Entity;
 import net.minecraft.util.AxisAlignedBB;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import appeng.api.parts.IPartCollisionHelper;
@@ -28,15 +29,22 @@ public class BusCollisionHelper implements IPartCollisionHelper {
 
     private final Entity entity;
     private final boolean isVisual;
+    private final IBlockAccess blockAccess;
 
     public BusCollisionHelper(final List<AxisAlignedBB> boxes, final ForgeDirection x, final ForgeDirection y,
             final ForgeDirection z, final Entity e, final boolean visual) {
+        this(boxes, x, y, z, e, visual, null);
+    }
+
+    public BusCollisionHelper(final List<AxisAlignedBB> boxes, final ForgeDirection x, final ForgeDirection y,
+            final ForgeDirection z, final Entity e, final boolean visual, final IBlockAccess blockAccess) {
         this.boxes = boxes;
         this.x = x;
         this.y = y;
         this.z = z;
         this.entity = e;
         this.isVisual = visual;
+        this.blockAccess = blockAccess;
     }
 
     public BusCollisionHelper(final List<AxisAlignedBB> boxes, final ForgeDirection s, final Entity e,
@@ -44,6 +52,7 @@ public class BusCollisionHelper implements IPartCollisionHelper {
         this.boxes = boxes;
         this.entity = e;
         this.isVisual = visual;
+        this.blockAccess = null;
 
         switch (s) {
             case DOWN -> {
@@ -152,4 +161,9 @@ public class BusCollisionHelper implements IPartCollisionHelper {
     public boolean isBBCollision() {
         return !this.isVisual;
     }
+
+    @Override
+    public IBlockAccess getBlockAccess() {
+        return this.blockAccess;
+    }
 }

src/main/java/appeng/parts/CableBusContainer.java

@@ -17,6 +17,7 @@ import java.util.List;
 import java.util.Random;
 import java.util.Set;
 
+import net.minecraft.client.Minecraft;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.entity.player.EntityPlayer;
@@ -26,6 +27,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.AxisAlignedBB;
 import net.minecraft.util.Vec3;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.ForgeDirection;
 
@@ -719,7 +721,12 @@ public class CableBusContainer extends CableBusStorage implements AEMultiTile, I
 
     @SideOnly(Side.CLIENT)
     public void renderStatic(final double x, final double y, final double z) {
-        CableRenderHelper.getInstance().renderStatic(this, this.getFacadeContainer());
+        this.renderStatic(Minecraft.getMinecraft().theWorld, x, y, z);
+    }
+
+    @SideOnly(Side.CLIENT)
+    public void renderStatic(final IBlockAccess world, final double x, final double y, final double z) {
+        CableRenderHelper.getInstance().renderStatic(this, this.getFacadeContainer(), world);
     }
 
     @SideOnly(Side.CLIENT)

src/main/java/appeng/parts/automation/PartAdvancedLevelEmitter.java

@@ -501,7 +501,7 @@ public class PartAdvancedLevelEmitter extends PartUpgradeable implements IAdvanc
         renderer.renderAllFaces = true;
 
         final Tessellator tess = Tessellator.instance;
-        tess.setBrightness(rh.getBlock().getMixedBrightnessForBlock(this.getHost().getTile().getWorldObj(), x, y, z));
+        tess.setBrightness(rh.getBlock().getMixedBrightnessForBlock(this.getRenderWorld(rh), x, y, z));
         tess.setColorOpaque_F(1.0F, 1.0F, 1.0F);
 
         this.renderTorchAtAngle(x, y, z);

src/main/java/appeng/parts/automation/PartBaseAnnihilationPlane.java

@@ -4,6 +4,7 @@ import net.minecraft.client.renderer.RenderBlocks;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import appeng.api.networking.events.MENetworkChannelsChanged;
@@ -45,27 +46,28 @@ public abstract class PartBaseAnnihilationPlane extends PartBasicState {
 
             final ForgeDirection e = bch.getWorldX();
             final ForgeDirection u = bch.getWorldY();
+            final IBlockAccess w = this.getRenderWorld(bch);
 
             if (this.isAnnihilationPlane(
-                    te.getWorldObj().getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ),
+                    w.getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ),
                     this.getSide())) {
                 minX = 0;
             }
 
             if (this.isAnnihilationPlane(
-                    te.getWorldObj().getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ),
+                    w.getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ),
                     this.getSide())) {
                 maxX = 16;
             }
 
             if (this.isAnnihilationPlane(
-                    te.getWorldObj().getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ),
+                    w.getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ),
                     this.getSide())) {
                 minY = 0;
             }
 
             if (this.isAnnihilationPlane(
-                    te.getWorldObj().getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ),
+                    w.getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ),
                     this.getSide())) {
                 maxY = 16;
             }
@@ -101,32 +103,24 @@ public abstract class PartBaseAnnihilationPlane extends PartBasicState {
         final ForgeDirection e = rh.getWorldX();
         final ForgeDirection u = rh.getWorldY();
 
-        final TileEntity te = this.getHost().getTile();
+        final IBlockAccess w = this.getRenderWorld(rh);
 
-        if (this.isAnnihilationPlane(
-                te.getWorldObj().getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ),
-                this.getSide())) {
+        if (this.isAnnihilationPlane(w.getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ), this.getSide())) {
             minX = 0;
         }
 
         int maxX = 15;
-        if (this.isAnnihilationPlane(
-                te.getWorldObj().getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ),
-                this.getSide())) {
+        if (this.isAnnihilationPlane(w.getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ), this.getSide())) {
             maxX = 16;
         }
 
         int minY = 1;
-        if (this.isAnnihilationPlane(
-                te.getWorldObj().getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ),
-                this.getSide())) {
+        if (this.isAnnihilationPlane(w.getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ), this.getSide())) {
             minY = 0;
         }
 
         int maxY = 15;
-        if (this.isAnnihilationPlane(
-                te.getWorldObj().getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ),
-                this.getSide())) {
+        if (this.isAnnihilationPlane(w.getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ), this.getSide())) {
             maxY = 16;
         }
 

src/main/java/appeng/parts/automation/PartBaseFormationPlane.java

@@ -8,6 +8,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
 import net.minecraft.util.Vec3;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.ForgeDirection;
 
@@ -135,28 +136,21 @@ public abstract class PartBaseFormationPlane extends PartUpgradeable
 
             final ForgeDirection e = bch.getWorldX();
             final ForgeDirection u = bch.getWorldY();
+            final IBlockAccess w = this.getRenderWorld(bch);
 
-            if (this.isTransitionPlane(
-                    te.getWorldObj().getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ),
-                    this.getSide())) {
+            if (this.isTransitionPlane(w.getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ), this.getSide())) {
                 minX = 0;
             }
 
-            if (this.isTransitionPlane(
-                    te.getWorldObj().getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ),
-                    this.getSide())) {
+            if (this.isTransitionPlane(w.getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ), this.getSide())) {
                 maxX = 16;
             }
 
-            if (this.isTransitionPlane(
-                    te.getWorldObj().getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ),
-                    this.getSide())) {
+            if (this.isTransitionPlane(w.getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ), this.getSide())) {
                 minY = 0;
             }
 
-            if (this.isTransitionPlane(
-                    te.getWorldObj().getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ),
-                    this.getSide())) {
+            if (this.isTransitionPlane(w.getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ), this.getSide())) {
                 maxY = 16;
             }
         }
@@ -192,32 +186,24 @@ public abstract class PartBaseFormationPlane extends PartUpgradeable
         final ForgeDirection e = rh.getWorldX();
         final ForgeDirection u = rh.getWorldY();
 
-        final TileEntity te = this.getHost().getTile();
+        final IBlockAccess w = this.getRenderWorld(rh);
 
-        if (this.isTransitionPlane(
-                te.getWorldObj().getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ),
-                this.getSide())) {
+        if (this.isTransitionPlane(w.getTileEntity(x - e.offsetX, y - e.offsetY, z - e.offsetZ), this.getSide())) {
             minX = 0;
         }
 
         int maxX = 15;
-        if (this.isTransitionPlane(
-                te.getWorldObj().getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ),
-                this.getSide())) {
+        if (this.isTransitionPlane(w.getTileEntity(x + e.offsetX, y + e.offsetY, z + e.offsetZ), this.getSide())) {
             maxX = 16;
         }
 
         int minY = 1;
-        if (this.isTransitionPlane(
-                te.getWorldObj().getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ),
-                this.getSide())) {
+        if (this.isTransitionPlane(w.getTileEntity(x - u.offsetX, y - u.offsetY, z - u.offsetZ), this.getSide())) {
             minY = 0;
         }
 
         int maxY = 15;
-        if (this.isTransitionPlane(
-                te.getWorldObj().getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ),
-                this.getSide())) {
+        if (this.isTransitionPlane(w.getTileEntity(x + u.offsetX, y + u.offsetY, z + u.offsetZ), this.getSide())) {
             maxY = 16;
         }
 

src/main/java/appeng/parts/automation/PartLevelEmitter.java

@@ -696,7 +696,7 @@ public class PartLevelEmitter extends PartUpgradeable implements ILevelEmitter {
         renderer.renderAllFaces = true;
 
         final Tessellator tess = Tessellator.instance;
-        tess.setBrightness(rh.getBlock().getMixedBrightnessForBlock(this.getHost().getTile().getWorldObj(), x, y, z));
+        tess.setBrightness(rh.getBlock().getMixedBrightnessForBlock(this.getRenderWorld(rh), x, y, z));
         tess.setColorOpaque_F(1.0F, 1.0F, 1.0F);
 
         this.renderTorchAtAngle(x, y, z);

src/main/java/appeng/parts/networking/PartCable.java

@@ -249,7 +249,7 @@ public class PartCable extends AEBasePart implements IPartCable {
                     break;
                 }
             } else if (this.getConnections().contains(dir)) {
-                final TileEntity te = this.getTile().getWorldObj()
+                final TileEntity te = this.getRenderWorld(rh)
                         .getTileEntity(x + dir.offsetX, y + dir.offsetY, z + dir.offsetZ);
                 final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
                 final IGridHost gh = te instanceof IGridHost ? (IGridHost) te : null;
@@ -460,8 +460,7 @@ public class PartCable extends AEBasePart implements IPartCable {
     @SideOnly(Side.CLIENT)
     private void renderGlassConnection(final int x, final int y, final int z, final IPartRenderHelper rh,
             final RenderBlocks renderer, final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj()
-                .getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
+        final TileEntity te = this.getRenderWorld(rh).getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
         final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
         final IGridHost gh = te instanceof IGridHost ? (IGridHost) te : null;
 
@@ -511,8 +510,7 @@ public class PartCable extends AEBasePart implements IPartCable {
     @SideOnly(Side.CLIENT)
     void renderCoveredConnection(final int x, final int y, final int z, final IPartRenderHelper rh,
             final RenderBlocks renderer, final int channels, final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj()
-                .getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
+        final TileEntity te = this.getRenderWorld(rh).getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
         final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
         final IGridHost ghh = te instanceof IGridHost ? (IGridHost) te : null;
 
@@ -569,8 +567,7 @@ public class PartCable extends AEBasePart implements IPartCable {
     @SideOnly(Side.CLIENT)
     void renderSmartConnection(final int x, final int y, final int z, final IPartRenderHelper rh,
             final RenderBlocks renderer, final int channels, final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj()
-                .getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
+        final TileEntity te = this.getRenderWorld(rh).getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
         final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
         final IGridHost ghh = te instanceof IGridHost ? (IGridHost) te : null;
         AEColor myColor = this.getCableColor();

src/main/java/appeng/parts/networking/PartDenseCable.java

@@ -17,6 +17,7 @@ import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import org.lwjgl.opengl.GL11;
@@ -81,8 +82,9 @@ public class PartDenseCable extends PartCable implements IUsedChannelProvider {
             }
         }
 
+        final IBlockAccess w = this.getRenderWorld(bch);
         for (final ForgeDirection of : this.getConnections()) {
-            if (this.isDense(of)) {
+            if (this.isDense(w, of)) {
                 switch (of) {
                     case DOWN -> bch.addBox(min, 0.0, min, max, min, max);
                     case EAST -> bch.addBox(max, min, min, 16.0, max, max);
@@ -170,18 +172,20 @@ public class PartDenseCable extends PartCable implements IUsedChannelProvider {
 
         final EnumSet<ForgeDirection> sides = this.getConnections().clone();
 
+        final IBlockAccess w = this.getRenderWorld(rh);
+
         boolean hasBuses = false;
         for (final ForgeDirection of : this.getConnections()) {
-            if (!this.isDense(of)) {
+            if (!this.isDense(w, of)) {
                 hasBuses = true;
             }
         }
 
         if (sides.size() != 2 || !this.nonLinear(sides) || hasBuses) {
             for (final ForgeDirection of : this.getConnections()) {
-                if (this.isDense(of)) {
+                if (this.isDense(w, of)) {
                     this.renderDenseConnection(x, y, z, rh, renderer, this.getChannelsOnSide()[of.ordinal()], of);
-                } else if (this.isSmart(of)) {
+                } else if (this.isSmart(w, of)) {
                     this.renderSmartConnection(x, y, z, rh, renderer, this.getChannelsOnSide()[of.ordinal()], of);
                 } else {
                     this.renderCoveredConnection(x, y, z, rh, renderer, this.getChannelsOnSide()[of.ordinal()], of);
@@ -281,8 +285,7 @@ public class PartDenseCable extends PartCable implements IUsedChannelProvider {
             final RenderBlocks renderer, final int channels, final ForgeDirection of) {
         final Tessellator tessellator = Tessellator.instance;
 
-        final TileEntity te = this.getTile().getWorldObj()
-                .getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
+        final TileEntity te = this.getRenderWorld(rh).getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
         final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
         final IGridHost ghh = te instanceof IGridHost ? (IGridHost) te : null;
         AEColor myColor = this.getCableColor();
@@ -332,8 +335,8 @@ public class PartDenseCable extends PartCable implements IUsedChannelProvider {
         }
     }
 
-    private boolean isSmart(final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj().getTileEntity(
+    private boolean isSmart(final IBlockAccess w, final ForgeDirection of) {
+        final TileEntity te = w.getTileEntity(
                 this.getTile().xCoord + of.offsetX,
                 this.getTile().yCoord + of.offsetY,
                 this.getTile().zCoord + of.offsetZ);
@@ -366,8 +369,8 @@ public class PartDenseCable extends PartCable implements IUsedChannelProvider {
         });
     }
 
-    private boolean isDense(final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj().getTileEntity(
+    private boolean isDense(final IBlockAccess w, final ForgeDirection of) {
+        final TileEntity te = w.getTileEntity(
                 this.getTile().xCoord + of.offsetX,
                 this.getTile().yCoord + of.offsetY,
                 this.getTile().zCoord + of.offsetZ);

src/main/java/appeng/parts/networking/PartDenseCableCovered.java

@@ -16,6 +16,7 @@ import net.minecraft.client.renderer.RenderBlocks;
 import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraftforge.common.util.ForgeDirection;
 
 import org.lwjgl.opengl.GL11;
@@ -79,8 +80,9 @@ public class PartDenseCableCovered extends PartCable {
             }
         }
 
+        final IBlockAccess w = this.getRenderWorld(bch);
         for (final ForgeDirection of : this.getConnections()) {
-            if (this.isDense(of)) {
+            if (this.isDense(w, of)) {
                 switch (of) {
                     case DOWN -> bch.addBox(min, 0.0, min, max, min, max);
                     case EAST -> bch.addBox(max, min, min, 16.0, max, max);
@@ -155,16 +157,18 @@ public class PartDenseCableCovered extends PartCable {
 
         final EnumSet<ForgeDirection> sides = this.getConnections().clone();
 
+        final IBlockAccess w = this.getRenderWorld(rh);
+
         boolean hasBuses = false;
         for (final ForgeDirection of : this.getConnections()) {
-            if (!this.isDense(of)) {
+            if (!this.isDense(w, of)) {
                 hasBuses = true;
             }
         }
 
         if (sides.size() != 2 || !this.nonLinear(sides) || hasBuses) {
             for (final ForgeDirection of : this.getConnections()) {
-                if (this.isDense(of)) {
+                if (this.isDense(w, of)) {
                     this.renderDenseCoveredConnection(x, y, z, rh, renderer, of);
                 } else {
                     this.renderCoveredConnection(x, y, z, rh, renderer, this.getChannelsOnSide()[of.ordinal()], of);
@@ -226,8 +230,7 @@ public class PartDenseCableCovered extends PartCable {
     @SideOnly(Side.CLIENT)
     private void renderDenseCoveredConnection(final int x, final int y, final int z, final IPartRenderHelper rh,
             final RenderBlocks renderer, final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj()
-                .getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
+        final TileEntity te = this.getRenderWorld(rh).getTileEntity(x + of.offsetX, y + of.offsetY, z + of.offsetZ);
         final IPartHost partHost = te instanceof IPartHost ? (IPartHost) te : null;
         final IGridHost ghh = te instanceof IGridHost ? (IGridHost) te : null;
 
@@ -279,8 +282,8 @@ public class PartDenseCableCovered extends PartCable {
         });
     }
 
-    private boolean isDense(final ForgeDirection of) {
-        final TileEntity te = this.getTile().getWorldObj().getTileEntity(
+    private boolean isDense(final IBlockAccess w, final ForgeDirection of) {
+        final TileEntity te = w.getTileEntity(
                 this.getTile().xCoord + of.offsetX,
                 this.getTile().yCoord + of.offsetY,
                 this.getTile().zCoord + of.offsetZ);