001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    import java.awt.Color;
006    import java.awt.Dimension;
007    import java.awt.Graphics;
008    import java.text.DecimalFormat;
009    import javax.swing.JComponent;
010    import net.minecraft.server.MinecraftServer;
011    import net.minecraftforge.common.DimensionManager;
012    
013    @SideOnly(Side.SERVER)
014    public class GuiStatsComponent extends JComponent
015    {
016        private static final DecimalFormat field_79020_a = new DecimalFormat("########0.000");
017    
018        /** An array containing the columns that make up the memory use graph. */
019        private int[] memoryUse = new int[256];
020    
021        /**
022         * Counts the number of updates. Used as the index into the memoryUse array to display the latest value.
023         */
024        private int updateCounter = 0;
025    
026        /** An array containing the strings displayed in this stats component. */
027        private String[] displayStrings = new String[11];
028        private final MinecraftServer field_79017_e;
029    
030        public GuiStatsComponent(MinecraftServer par1MinecraftServer)
031        {
032            this.field_79017_e = par1MinecraftServer;
033            this.setPreferredSize(new Dimension(456, 246));
034            this.setMinimumSize(new Dimension(456, 246));
035            this.setMaximumSize(new Dimension(456, 246));
036            (new javax.swing.Timer(500, new GuiStatsListener(this))).start();
037            this.setBackground(Color.BLACK);
038        }
039    
040        /**
041         * Updates the stat values and calls paint to redraw the component.
042         */
043        private void updateStats()
044        {
045            this.displayStrings = new String[5 + DimensionManager.getIDs().length];
046            long var1 = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
047            System.gc();
048            this.displayStrings[0] = "Memory use: " + var1 / 1024L / 1024L + " mb (" + Runtime.getRuntime().freeMemory() * 100L / Runtime.getRuntime().maxMemory() + "% free)";
049            this.displayStrings[1] = "Threads: " + TcpConnection.field_74471_a.get() + " + " + TcpConnection.field_74469_b.get();
050            this.displayStrings[2] = "Avg tick: " + field_79020_a.format(this.func_79015_a(this.field_79017_e.tickTimeArray) * 1.0E-6D) + " ms";
051            this.displayStrings[3] = "Avg sent: " + (int)this.func_79015_a(this.field_79017_e.sentPacketCountArray) + ", Avg size: " + (int)this.func_79015_a(this.field_79017_e.sentPacketSizeArray);
052            this.displayStrings[4] = "Avg rec: " + (int)this.func_79015_a(this.field_79017_e.receivedPacketCountArray) + ", Avg size: " + (int)this.func_79015_a(this.field_79017_e.receivedPacketSizeArray);
053    
054            if (this.field_79017_e.worldServers != null)
055            {
056                int var3 = 0;
057                for (Integer id : DimensionManager.getIDs())
058                {
059                    this.displayStrings[5 + var3] = "Lvl " + id + " tick: " + field_79020_a.format(this.func_79015_a(this.field_79017_e.worldTickTimes.get(id)) * 1.0E-6D) + " ms";
060    
061                    WorldServer world = DimensionManager.getWorld(id);
062                    if (world != null && world.theChunkProviderServer != null)
063                    {
064                        this.displayStrings[5 + var3] = this.displayStrings[5 + var3] + ", " + world.theChunkProviderServer.makeString();
065                        this.displayStrings[5 + var3] = this.displayStrings[5 + var3] + ", Vec3: " + world.getWorldVec3Pool().func_82590_d() + " / " + world.getWorldVec3Pool().func_82591_c();
066                    }
067                    var3++;
068                }
069            }
070    
071            this.memoryUse[this.updateCounter++ & 255] = (int)(this.func_79015_a(this.field_79017_e.sentPacketSizeArray) * 100.0D / 12500.0D);
072            this.repaint();
073        }
074    
075        private double func_79015_a(long[] par1ArrayOfLong)
076        {
077            long var2 = 0L;
078            long[] var4 = par1ArrayOfLong;
079            int var5 = par1ArrayOfLong.length;
080    
081            for (int var6 = 0; var6 < var5; ++var6)
082            {
083                long var7 = var4[var6];
084                var2 += var7;
085            }
086    
087            return (double)var2 / (double)par1ArrayOfLong.length;
088        }
089    
090        public void paint(Graphics par1Graphics)
091        {
092            par1Graphics.setColor(new Color(16777215));
093            par1Graphics.fillRect(0, 0, 456, 246);
094            int var2;
095    
096            for (var2 = 0; var2 < 256; ++var2)
097            {
098                int var3 = this.memoryUse[var2 + this.updateCounter & 255];
099                par1Graphics.setColor(new Color(var3 + 28 << 16));
100                par1Graphics.fillRect(var2, 100 - var3, 1, var3);
101            }
102    
103            par1Graphics.setColor(Color.BLACK);
104    
105            for (var2 = 0; var2 < this.displayStrings.length; ++var2)
106            {
107                String var4 = this.displayStrings[var2];
108    
109                if (var4 != null)
110                {
111                    par1Graphics.drawString(var4, 32, 116 + var2 * 16);
112                }
113            }
114        }
115    
116        /**
117         * Public static accessor to call updateStats.
118         */
119        static void update(GuiStatsComponent par0GuiStatsComponent)
120        {
121            par0GuiStatsComponent.updateStats();
122        }
123    }