2 files changed, 86 insertions, 2 deletions

diff --git a/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/Widget.java b/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/Widget.java
index 5f0d2c3c..e37da755 100644
--- a/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/Widget.java
+++ b/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/Widget.java
@@ -67,6 +67,11 @@ public abstract class Widget {
         this.addComponent(new IcoTextComponent(ico, txt));
     }
 
+    public final void addSimpleIcoText(ItemStack ico, String string, Formatting fmt, String content) {
+        Text txt = Widget.simpleEntryText(content, string, fmt);
+        this.addComponent(new IcoTextComponent(ico, txt));
+    }
+
     /**
      * Calculate the size of this widget.
      * <b>Must be called before returning from the widget constructor and after all
diff --git a/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/hud/HudPowderWidget.java b/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/hud/HudPowderWidget.java
index 1d11c2a6..fe23f19a 100644
--- a/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/hud/HudPowderWidget.java
+++ b/src/main/java/de/hysky/skyblocker/skyblock/tabhud/widget/hud/HudPowderWidget.java
@@ -1,17 +1,47 @@
 package de.hysky.skyblocker.skyblock.tabhud.widget.hud;
 
+import de.hysky.skyblocker.skyblock.dwarven.DwarvenHud;
 import de.hysky.skyblocker.skyblock.tabhud.util.Ico;
 import de.hysky.skyblocker.skyblock.tabhud.widget.Widget;
 import net.minecraft.text.MutableText;
 import net.minecraft.text.Text;
 import net.minecraft.util.Formatting;
 
+import java.text.NumberFormat;
+import java.text.ParseException;
+import java.util.Locale;
+
 // this widget shows the status of the king's commissions.
 // (dwarven mines and crystal hollows)
 // USE ONLY WITH THE DWARVEN HUD!
 
 public class HudPowderWidget extends Widget {
 
+    /**
+     * American number format instance
+     */
+    private static final NumberFormat NUMBER_FORMAT = NumberFormat.getInstance(Locale.US);
+    /**
+     * current value of Mithril Powder
+     */
+    private static int mithrilPowder = 0;
+    /**
+     * current value of Gemstone Powder
+     */
+    private static int gemstonePowder = 0;
+    /**
+     * the difference between the previous and current value of Mithril Powder
+     */
+    private static int mithrilPowderDiff = 0;
+    /**
+     * the difference between the previous and current value of Gemstone Powder
+     */
+    private static int gemstonePowderDiff = 0;
+    /**
+     * The initial value of the timer for the difference update delay countdown.
+     */
+    private static long startTime = System.currentTimeMillis();
+
     private static final MutableText TITLE = Text.literal("Powders").formatted(Formatting.DARK_AQUA,
             Formatting.BOLD);
 
@@ -30,11 +60,60 @@ public class HudPowderWidget extends Widget {
         super(TITLE, Formatting.DARK_AQUA.getColorValue());
     }
 
+    /**
+     * Converts a string with a number and commas between digits to an integer value.
+     *
+     * @param str a string with a number and commas between digits
+     * @return integer value
+     */
+    private static int parsePowder(String str) {
+        try {
+            return NUMBER_FORMAT.parse(str).intValue();
+        } catch (ParseException e) {
+            return 0;
+        }
+    }
+
+    /**
+     * Converts Powder and difference values to a string and adds commas to the digits of the numbers.
+     *
+     * @param powder the value of Mithril or Gemstone Powder
+     * @param diff   the difference between the previous and current value of Mithril or Gemstone Powder
+     * @return formatted string
+     */
+    private static String formatPowderString(int powder, int diff) {
+        if (diff == 0) return NUMBER_FORMAT.format(powder);
+        return NUMBER_FORMAT.format(powder) + (diff > 0 ? " (+" : " (") + NUMBER_FORMAT.format(diff) + ")";
+    }
+
+    /**
+     * Updates Powders and difference values when Powder values change or every 2 seconds.
+     */
+    private static void updatePowders() {
+        long elapsedTime = System.currentTimeMillis() - startTime;
+
+        int newMithrilPowder = parsePowder(DwarvenHud.mithrilPowder);
+        int newGemstonePowder = parsePowder(DwarvenHud.gemStonePowder);
+
+        if (newMithrilPowder != mithrilPowder || newGemstonePowder != gemstonePowder || elapsedTime > 2000) {
+            startTime = System.currentTimeMillis();
+
+            mithrilPowderDiff = newMithrilPowder - mithrilPowder;
+            gemstonePowderDiff = newGemstonePowder - gemstonePowder;
+
+            mithrilPowder = newMithrilPowder;
+            gemstonePowder = newGemstonePowder;
+        }
+    }
 
     @Override
     public void updateContent() {
-        this.addSimpleIcoText(Ico.MITHRIL, "Mithril:", Formatting.AQUA, 46);
-        this.addSimpleIcoText(Ico.AMETHYST_SHARD, "Gemstone:", Formatting.DARK_PURPLE, 47);
+        updatePowders();
+        String mithrilPowderString = formatPowderString(mithrilPowder, mithrilPowderDiff);
+        String gemstonePowderString = formatPowderString(gemstonePowder, gemstonePowderDiff);
+
+        this.addSimpleIcoText(Ico.MITHRIL, "Mithril: ", Formatting.AQUA, mithrilPowderString);
+        this.addSimpleIcoText(Ico.AMETHYST_SHARD, "Gemstone: ", Formatting.DARK_PURPLE, gemstonePowderString);
     }
 
 }