Basic sigils implementation

src/main/java/WayofTime/bloodmagic/tile/TilePhantomBlock.java

@@ -0,0 +1,39 @@
+package WayofTime.bloodmagic.tile;
+
+import WayofTime.bloodmagic.api.Constants;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.ITickable;
+
+public class TilePhantomBlock extends TileEntity implements ITickable {
+
+    private int ticksRemaining;
+
+    public TilePhantomBlock() {
+    }
+
+    @Override
+    public void readFromNBT(NBTTagCompound tagCompound) {
+        super.readFromNBT(tagCompound);
+        ticksRemaining = tagCompound.getInteger(Constants.NBT.TICKS_REMAINING);
+    }
+
+    @Override
+    public void writeToNBT(NBTTagCompound tagCompound) {
+        super.writeToNBT(tagCompound);
+        tagCompound.setInteger(Constants.NBT.TICKS_REMAINING, ticksRemaining);
+    }
+
+    @Override
+    public void update() {
+        ticksRemaining--;
+
+        if (ticksRemaining <= 0) {
+            worldObj.setBlockToAir(pos);
+        }
+    }
+
+    public void setDuration(int duration) {
+        ticksRemaining = duration;
+    }
+}