    001    package net.minecraft.server.gui;
    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 javax.swing.Timer;
    011    import net.minecraft.network.TcpConnection;
    012    import net.minecraft.server.MinecraftServer;
    013    import net.minecraft.world.WorldServer;
    014    import net.minecraftforge.common.DimensionManager;
    015
    016    @SideOnly(Side.SERVER)
    017    public 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.func_79015_a(this.field_79017_e.tickTimeArray) * 1.0E-6D) + " ms";
    054            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);
    055            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);
    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.func_79015_a(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.func_79015_a(this.field_79017_e.sentPacketSizeArray) * 100.0D / 12500.0D);
    075            this.repaint();
    076        }
    077
    078        private double func_79015_a(long[] par1ArrayOfLong)
    079        {
    080            long var2 = 0L;
    081
    082            for (int var4 = 0; var4 < par1ArrayOfLong.length; ++var4)
    083            {
    084                var2 += par1ArrayOfLong[var4];
    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    }