001package net.minecraft.server.gui;
002
003import cpw.mods.fml.relauncher.Side;
004import cpw.mods.fml.relauncher.SideOnly;
005import java.awt.Color;
006import java.awt.Dimension;
007import java.awt.Graphics;
008import java.text.DecimalFormat;
009import javax.swing.JComponent;
010import javax.swing.Timer;
011import net.minecraft.network.TcpConnection;
012import net.minecraft.server.MinecraftServer;
013import net.minecraft.world.WorldServer;
014import net.minecraftforge.common.DimensionManager;
015
016@SideOnly(Side.SERVER)
017public class GuiStatsComponent extends JComponent
018{
019    private static final DecimalFormat field_79020_a = new DecimalFormat("########0.000");
020
021    /** An array containing the columns that make up the memory use graph. */
022    private int[] memoryUse = new int[256];
023
024    /**
025     * Counts the number of updates. Used as the index into the memoryUse array to display the latest value.
026     */
027    private int updateCounter = 0;
028
029    /** An array containing the strings displayed in this stats component. */
030    private String[] displayStrings = new String[11];
031    private final MinecraftServer field_79017_e;
032
033    public GuiStatsComponent(MinecraftServer par1MinecraftServer)
034    {
035        this.field_79017_e = par1MinecraftServer;
036        this.setPreferredSize(new Dimension(456, 246));
037        this.setMinimumSize(new Dimension(456, 246));
038        this.setMaximumSize(new Dimension(456, 246));
039        (new Timer(500, new GuiStatsListener(this))).start();
040        this.setBackground(Color.BLACK);
041    }
042
043    /**
044     * Updates the stat values and calls paint to redraw the component.
045     */
046    private void updateStats()
047    {
048        this.displayStrings = new String[5 + DimensionManager.getIDs().length];
049        long var1 = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
050        System.gc();
051        this.displayStrings[0] = "Memory use: " + var1 / 1024L / 1024L + " mb (" + Runtime.getRuntime().freeMemory() * 100L / Runtime.getRuntime().maxMemory() + "% free)";
052        this.displayStrings[1] = "Threads: " + TcpConnection.field_74471_a.get() + " + " + TcpConnection.field_74469_b.get();
053        this.displayStrings[2] = "Avg tick: " + field_79020_a.format(this.calcArrayAverage(this.field_79017_e.tickTimeArray) * 1.0E-6D) + " ms";
054        this.displayStrings[3] = "Avg sent: " + (int)this.calcArrayAverage(this.field_79017_e.sentPacketCountArray) + ", Avg size: " + (int)this.calcArrayAverage(this.field_79017_e.sentPacketSizeArray);
055        this.displayStrings[4] = "Avg rec: " + (int)this.calcArrayAverage(this.field_79017_e.receivedPacketCountArray) + ", Avg size: " + (int)this.calcArrayAverage(this.field_79017_e.receivedPacketSizeArray);
056
057        if (this.field_79017_e.worldServers != null)
058        {
059            int var3 = 0;
060            for (Integer id : DimensionManager.getIDs())
061            {
062                this.displayStrings[5 + var3] = "Lvl " + id + " tick: " + field_79020_a.format(this.calcArrayAverage(this.field_79017_e.worldTickTimes.get(id)) * 1.0E-6D) + " ms";
063
064                WorldServer world = DimensionManager.getWorld(id);
065                if (world != null && world.theChunkProviderServer != null)
066                {
067                    this.displayStrings[5 + var3] = this.displayStrings[5 + var3] + ", " + world.theChunkProviderServer.makeString();
068                    this.displayStrings[5 + var3] = this.displayStrings[5 + var3] + ", Vec3: " + world.getWorldVec3Pool().func_82590_d() + " / " + world.getWorldVec3Pool().getPoolSize();
069                }
070                var3++;
071            }
072        }
073
074        this.memoryUse[this.updateCounter++ & 255] = (int)(this.calcArrayAverage(this.field_79017_e.sentPacketSizeArray) * 100.0D / 12500.0D);
075        this.repaint();
076    }
077
078    /**
079     * Calculates the avarage value of the given long array.
080     */
081    private double calcArrayAverage(long[] par1ArrayOfLong)
082    {
083        long var2 = 0L;
084
085        for (int var4 = 0; var4 < par1ArrayOfLong.length; ++var4)
086        {
087            var2 += par1ArrayOfLong[var4];
088        }
089
090        return (double)var2 / (double)par1ArrayOfLong.length;
091    }
092
093    public void paint(Graphics par1Graphics)
094    {
095        par1Graphics.setColor(new Color(16777215));
096        par1Graphics.fillRect(0, 0, 456, 246);
097        int var2;
098
099        for (var2 = 0; var2 < 256; ++var2)
100        {
101            int var3 = this.memoryUse[var2 + this.updateCounter & 255];
102            par1Graphics.setColor(new Color(var3 + 28 << 16));
103            par1Graphics.fillRect(var2, 100 - var3, 1, var3);
104        }
105
106        par1Graphics.setColor(Color.BLACK);
107
108        for (var2 = 0; var2 < this.displayStrings.length; ++var2)
109        {
110            String var4 = this.displayStrings[var2];
111
112            if (var4 != null)
113            {
114                par1Graphics.drawString(var4, 32, 116 + var2 * 16);
115            }
116        }
117    }
118
119    /**
120     * Public static accessor to call updateStats.
121     */
122    static void update(GuiStatsComponent par0GuiStatsComponent)
123    {
124        par0GuiStatsComponent.updateStats();
125    }
126}