FloorMarker emits a weak redstone signal when elevator is at selected floor.

src/main/java/net/slimevoid/dynamictransport/blocks/BlockTransportBase.java

@@ -122,13 +122,23 @@ public IIcon[] registerSideIcons(IIconRegister iconRegister) {
         return null;
     }
 
+    @Override
+    public boolean canProvidePower() {
+        return true;
+    }
+
     @Override
     public int isProvidingWeakPower(IBlockAccess world, int x, int y, int z, int side) {
 
 
         TileEntity tile = world.getTileEntity(x,
                 y,
                 z);
+        if (tile instanceof TileEntityFloorMarker) {
+            if (((TileEntityFloorMarker) tile).atFloor) {
+                return 3;
+            }
+        }
         if (tile instanceof TileEntityTransportBase) {
 
             ItemStack itemstack = ((TileEntityTransportBase) tile).getCamoItem();
@@ -152,6 +162,11 @@ public int isProvidingStrongPower(IBlockAccess world, int x, int y, int z, int s
         TileEntity tile = world.getTileEntity(x,
                 y,
                 z);
+        if (tile instanceof TileEntityFloorMarker) {
+            if (((TileEntityFloorMarker) tile).atFloor) {
+                return 3;
+            }
+        }
         if (tile instanceof TileEntityTransportBase) {
 
             ItemStack itemstack = ((TileEntityTransportBase) tile).getCamoItem();

src/main/java/net/slimevoid/dynamictransport/tileentity/TileEntityElevatorComputer.java

@@ -14,6 +14,7 @@
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ChunkCoordinates;
 import net.minecraft.util.MathHelper;
+import net.slimevoid.dynamictransport.blocks.BlockTransportBase;
 import net.slimevoid.dynamictransport.core.lib.BlockLib;
 import net.slimevoid.dynamictransport.core.lib.ConfigurationLib;
 import net.slimevoid.dynamictransport.entities.EntityMasterElevator;
@@ -397,6 +398,14 @@ private void doCallElevator(int i, String floorname) {
                 this.boundElevatorBlocks
         );
 
+        for (ChunkCoordinates boundBlock : this.boundMarkerBlocks) {
+            TileEntity tile = this.worldObj.getTileEntity(boundBlock.posX, boundBlock.posY, boundBlock.posZ);
+            if (tile != null && tile instanceof TileEntityFloorMarker) {
+                TileEntityFloorMarker marker = (TileEntityFloorMarker) tile;
+                marker.setActive(false);
+                worldObj.notifyBlockChange(boundBlock.posX, boundBlock.posY, boundBlock.posZ, worldObj.getBlock(boundBlock.posX, boundBlock.posY, boundBlock.posZ));
+            }
+        }
 
     }
 
@@ -573,7 +582,17 @@ public void elevatorArrived(int destination) {
                                this.floorSpool.get(nextFloor));
             }
         }
-
+        for (ChunkCoordinates boundBlock : this.boundMarkerBlocks) {
+            TileEntity tile = this.worldObj.getTileEntity(boundBlock.posX, boundBlock.posY, boundBlock.posZ);
+            if (tile != null && tile instanceof TileEntityFloorMarker) {
+                TileEntityFloorMarker marker = (TileEntityFloorMarker) tile;
+                int floorY = marker.getFloorY();
+                if (floorY == destination) {
+                    marker.setActive(true);
+                }
+                worldObj.notifyBlockChange(boundBlock.posX, boundBlock.posY, boundBlock.posZ, worldObj.getBlock(boundBlock.posX, boundBlock.posY, boundBlock.posZ));
+            }
+        }
     }
 
     @SuppressWarnings("UnusedDeclaration")

src/main/java/net/slimevoid/dynamictransport/tileentity/TileEntityFloorMarker.java

@@ -22,6 +22,7 @@ public class TileEntityFloorMarker extends TileEntityTransportBase {
     private String           floorName;
     private boolean          Powered = false;
     private int              yOffset = -2;
+    public boolean atFloor = false;
 
     public ChunkCoordinates getParentChunkCoords() {
         return this.parentTransportBase;
@@ -152,7 +153,8 @@ public void writeToNBT(NBTTagCompound nbttagcompound) {
                                   yOffset);
         nbttagcompound.setBoolean("Powered",
                                   this.Powered);
-
+        nbttagcompound.setBoolean("atFloor",
+                                  this.atFloor);
     }
 
     @Override
@@ -164,6 +166,7 @@ public void readFromNBT(NBTTagCompound nbttagcompound) {
 
         this.yOffset = nbttagcompound.getInteger("yOffset");
         this.Powered = nbttagcompound.getBoolean("Powered");
+        this.atFloor = nbttagcompound.getBoolean("atFloor");
     }
 
     public void removeParent() {
@@ -246,4 +249,8 @@ public Packet getDescriptionPacket()
         this.writeToNBT(nbttagcompound);
         return new S35PacketUpdateTileEntity(this.xCoord, this.yCoord, this.zCoord, 2, nbttagcompound);
     }
+
+    public void setActive(boolean flag) {
+        this.atFloor = flag;
+    }
 }