worked on network power calculations

more of redoing them since i deleted the old ones right off the back
when updating to 1.6.2 to remove the chance of errors

src/minecraft/dark/assembly/common/machine/NetworkAssembly.java

@@ -1,5 +1,6 @@
 package dark.assembly.common.machine;
 
+import java.util.Date;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Set;
@@ -15,8 +16,27 @@ import dark.core.tile.network.NetworkTileEntities;
 
 public class NetworkAssembly extends NetworkSharedPower
 {
-    public Set<TileEntity> powerSources = new HashSet<TileEntity>();
+    /** Set of tiles that count as power sources */
-    public Set<TileEntity> powerLoads = new HashSet<TileEntity>();
+    private Set<TileEntity> powerSources = new HashSet<TileEntity>();
+    /** Set of tiles that count as power loads */
+    private Set<TileEntity> powerLoads = new HashSet<TileEntity>();
+    /** Network last calculation of power required by the network */
+    private float lastNetDemand = 0;
+    /** System time when the last power calculation was made */
+    private long lastDemandCalcTime = 0;
+    /** Network last calculation of power required by the network parts */
+    private float lastNetPartsDemand = 0;
+    /** System time when the last power calculation was made for network parts */
+    private long lastDemandPCalcTime = 0;
+    /** Date instance used to record the tile when last calculation were made */
+    private Date date = new Date();
+
+    /** Average power demand of the entire network */
+    public float averageDemand = 0;
+    /** highest demand the network has seen */
+    public float maxDemand = 0;
+    /** lowest demand the network has seen */
+    public float minDemand = 0;
 
     public NetworkAssembly(INetworkPart... parts)
     {
@@ -24,11 +44,61 @@ public class NetworkAssembly extends NetworkSharedPower
     }
 
     @Override
-    public NetworkTileEntities newInstance()
+    public NetworkAssembly newInstance()
     {
         return new NetworkAssembly();
     }
 
+    /** Gets the demand of all parts of the network including network parts */
+    public float getNetworkDemand()
+    {
+        float lastDemand = lastNetDemand;
+        float currentDemand = 0;
+        long lastTime = lastDemandCalcTime;
+        long time = date.getTime();
+        if(lastTime == 0)
+        {
+            lastTime = time;
+        }
+        currentDemand += getNetworkPartsDemand();
+
+
+        return currentDemand;
+    }
+
+    /** Gets the demand of all parts contained in the network so to power them first */
+    public float getNetworkPartsDemand()
+    {
+        float lastDemand = lastNetPartsDemand;
+        float currentDemand = 0;
+        long lastTime = lastDemandPCalcTime;
+        long time = date.getTime();
+        if(lastTime == 0)
+        {
+            lastTime = time;
+        }
+
+        for(INetworkPart part : this.getNetworkMemebers())
+        {
+            if(part instanceof TileEntityAssembly)
+            {
+                currentDemand += ((TileEntityAssembly) part).getWattLoad();
+            }
+        }
+
+        lastDemandPCalcTime = time;
+        lastNetPartsDemand = currentDemand;
+        //TODO calculate average
+        return currentDemand;
+    }
+
+    /** Called when the network gets more power then its parts need. Also called after all parts in
+     * the network get there power and is time to start suppling connections */
+    public void supplyPower(float power)
+    {
+
+    }
+
     @Override
     public boolean addTile(TileEntity tileEntity, boolean member)
     {