Clean up TE implementations

Offload some work to base classes that provide some helpers

TODO: Implementations for Inventories (using caps) and ticking tiles with inventories.

src/main/java/WayofTime/bloodmagic/tile/base/TileTicking.java

@@ -0,0 +1,63 @@
+package WayofTime.bloodmagic.tile.base;
+
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.ITickable;
+
+/**
+ * Base class for tiles that tick. Allows disabling the ticking programmatically.
+ */
+// TODO - Move implementations that depend on existed ticks to new methods from here.
+public abstract class TileTicking extends TileBase implements ITickable
+{
+    private int ticksExisted;
+    private boolean shouldTick = true;
+
+    @Override
+    public final void update()
+    {
+        if (shouldTick()) {
+            ticksExisted++;
+            onUpdate();
+        }
+    }
+
+    @Override
+    void deserializeBase(NBTTagCompound tagCompound)
+    {
+        this.ticksExisted = tagCompound.getInteger("ticksExisted");
+        this.shouldTick = tagCompound.getBoolean("shouldTick");
+    }
+
+    @Override
+    NBTTagCompound serializeBase(NBTTagCompound tagCompound)
+    {
+        tagCompound.setInteger("ticksExisted", getTicksExisted());
+        tagCompound.setBoolean("shouldTick", shouldTick());
+        return tagCompound;
+    }
+
+    /**
+     * Called every tick that {@link #shouldTick()} is true.
+     */
+    public abstract void onUpdate();
+
+    public int getTicksExisted()
+    {
+        return ticksExisted;
+    }
+
+    public void resetLifetime()
+    {
+        ticksExisted = 0;
+    }
+
+    public boolean shouldTick()
+    {
+        return shouldTick;
+    }
+
+    public void setShouldTick(boolean shouldTick)
+    {
+        this.shouldTick = shouldTick;
+    }
+}