Adds configurable display of backpack fullness (#101)

src/main/java/forestry/core/config/Config.java

@@ -137,6 +137,7 @@ public class Config {
     public static boolean enableHints = true;
     public static final LinkedListMultimap<String, String> hints = LinkedListMultimap.create();
     public static boolean enableEnergyStat = true;
+    public static boolean showBackpackDurability = true;
 
     public static boolean isStructureEnabled(String uid) {
         return !Config.disabledStructures.contains(uid);
@@ -301,6 +302,9 @@ public class Config {
         configCommon.moveProperty("tweaks.gui", "mail.alert", "tweaks.gui.mail.alert");
         configCommon.renameProperty("tweaks.gui.mail.alert", "mail.alert", "enabled");
 
+        showBackpackDurability = configCommon
+                .getBooleanLocalized("tweaks.gui", "showBackpackDurability", showBackpackDurability);
+
         mailAlertEnabled = configCommon.getBooleanLocalized("tweaks.gui.mail.alert", "enabled", mailAlertEnabled);
         mailAlertXPosition = configCommon.getEnumLocalized(
                 "tweaks.gui.mail.alert",

src/main/java/forestry/storage/items/ItemBackpack.java

@@ -348,4 +348,17 @@ public class ItemBackpack extends ItemWithGui {
                 return null;
         }
     }
+
+    @Override
+    public double getDurabilityForDisplay(final ItemStack stack) {
+        final int occupied = ItemInventory.getOccupiedSlotCount(stack);
+        final int max = getBackpackSize();
+
+        return 1.0d - (occupied + 1.0d) / (max + 1.0d);
+    }
+
+    @Override
+    public boolean showDurabilityBar(final ItemStack stack) {
+        return Config.showBackpackDurability && ItemInventory.getOccupiedSlotCount(stack) > 0;
+    }
 }

src/main/resources/assets/forestry/lang/en_US.lang

@@ -1781,6 +1781,7 @@ for.config.crafting.stamps.disabled.comment=Disables the crafting recipe for cer
 
 for.config.tweaks=Tweaks
 
+for.config.tweaks.gui.showBackpackDurability=Shows a durability bar on backpacks indicating how full they are.
 for.config.tweaks.gui.mail.alert.enabled=Mail Alert
 for.config.tweaks.gui.mail.alert.enabled.comment=Enables the new mail alert box.
 for.config.tweaks.gui.mail.alert.xPosition=Horizontal Position