StatsComponent.java

net.minecraft.server.gui.StatsComponent

信息

• 全限定名：net.minecraft.server.gui.StatsComponent
• 类型：public class
• 包：net.minecraft.server.gui
• 源码路径：src/main/java/net/minecraft/server/gui/StatsComponent.java
• 起始行号：L15
• 继承：JComponent
• 职责：

  TODO

字段/常量

• DECIMAL_FORMAT

  • 类型: DecimalFormat
  • 修饰符: private static final
  • 源码定位: L16
  • 说明:

    TODO

• values

  • 类型: int[]
  • 修饰符: private final
  • 源码定位: L17
  • 说明:

    TODO

• vp

  • 类型: int
  • 修饰符: private
  • 源码定位: L18
  • 说明:

    TODO

• msgs

  • 类型: String[]
  • 修饰符: private final
  • 源码定位: L19
  • 说明:

    TODO

• server

  • 类型: MinecraftServer
  • 修饰符: private final
  • 源码定位: L20
  • 说明:

    TODO

• timer

  • 类型: Timer
  • 修饰符: private final
  • 源码定位: L21
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public StatsComponent(MinecraftServer server) @ L23

• 构造器名：StatsComponent
• 源码定位：L23
• 修饰符：public

参数:

• server: MinecraftServer

说明:

TODO

方法

下面的方法块按源码顺序生成。

private void tick() @ L33

• 方法名：tick
• 源码定位：L33
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

public void paint(Graphics g) @ L45

• 方法名：paint
• 源码定位：L45
• 返回类型：void
• 修饰符：public

参数:

• g: Graphics

说明:

TODO

public void close() @ L66

• 方法名：close
• 源码定位：L66
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

代码

public class StatsComponent extends JComponent {
    private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("########0.000", DecimalFormatSymbols.getInstance(Locale.ROOT));
    private final int[] values = new int[256];
    private int vp;
    private final @Nullable String[] msgs = new String[11];
    private final MinecraftServer server;
    private final Timer timer;
 
    public StatsComponent(MinecraftServer server) {
        this.server = server;
        this.setPreferredSize(new Dimension(456, 246));
        this.setMinimumSize(new Dimension(456, 246));
        this.setMaximumSize(new Dimension(456, 246));
        this.timer = new Timer(500, event -> this.tick());
        this.timer.start();
        this.setBackground(Color.BLACK);
    }
 
    private void tick() {
        long usedRam = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
        this.msgs[0] = "Memory use: "
            + usedRam / 1024L / 1024L
            + " mb ("
            + Runtime.getRuntime().freeMemory() * 100L / Runtime.getRuntime().maxMemory()
            + "% free)";
        this.msgs[1] = "Avg tick: " + DECIMAL_FORMAT.format((double)this.server.getAverageTickTimeNanos() / TimeUtil.NANOSECONDS_PER_MILLISECOND) + " ms";
        this.values[this.vp++ & 0xFF] = (int)(usedRam * 100L / Runtime.getRuntime().maxMemory());
        this.repaint();
    }
 
    @Override
    public void paint(Graphics g) {
        g.setColor(new Color(16777215));
        g.fillRect(0, 0, 456, 246);
 
        for (int x = 0; x < 256; x++) {
            int v = this.values[x + this.vp & 0xFF];
            g.setColor(new Color(v + 28 << 16));
            g.fillRect(x, 100 - v, 1, v);
        }
 
        g.setColor(Color.BLACK);
 
        for (int i = 0; i < this.msgs.length; i++) {
            String msg = this.msgs[i];
            if (msg != null) {
                g.drawString(msg, 32, 116 + i * 16);
            }
        }
    }
 
    public void close() {
        this.timer.stop();
    }
}

引用的其他类

• MainTarget

  • 引用位置: 构造调用
  • 关联成员: Dimension()

• DeltaTracker

  • 引用位置: 字段/构造调用
  • 关联成员: Timer()

• MinecraftServer

  • 引用位置: 参数/字段