Updated to 6.68.6

eco-api/src/main/kotlin/com/willfp/eco/core/items/Items.kt

@@ -37,9 +37,14 @@ fun ItemStack.toSNBT() =
     Items.toSNBT(this)
 
 /** @see Items.isEmpty */
+@Deprecated("Use ItemStack.isEcoEmpty", ReplaceWith("Items.isEmpty(this)"))
 val ItemStack?.isEmpty: Boolean
     get() = Items.isEmpty(this)
 
+/** @see Items.isEmpty */
+val ItemStack?.isEcoEmpty: Boolean
+    get() = Items.isEmpty(this)
+
 /** @see Items.matchesAny */
 fun Collection<TestableItem>.matches(item: ItemStack): Boolean =
     Items.matchesAny(item, this)

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/gui/menu/RenderedInventory.kt

@@ -1,6 +1,7 @@
 package com.willfp.eco.internal.gui.menu
 
 import com.willfp.eco.core.gui.menu.events.CaptiveItemChangeEvent
+import com.willfp.eco.core.items.isEcoEmpty
 import com.willfp.eco.core.recipe.parts.EmptyTestableItem
 import com.willfp.eco.util.MenuUtils
 import com.willfp.eco.util.openMenu
@@ -54,7 +55,7 @@ class RenderedInventory(
                     val actualItem = inventory.getItem(bukkit) ?: continue
 
                     if (slot.isCaptiveFromEmpty) {
-                        if (!actualItem.isEmpty) {
+                        if (!actualItem.isEcoEmpty) {
                             newCaptive[position] = actualItem
                         }
                     } else {

eco-core/core-backend/src/main/kotlin/com/willfp/eco/internal/placeholder/PlaceholderParser.kt

@@ -7,6 +7,8 @@ import com.willfp.eco.core.placeholder.InjectablePlaceholder
 import com.willfp.eco.core.placeholder.Placeholder
 import com.willfp.eco.core.placeholder.context.PlaceholderContext
 import com.willfp.eco.util.StringUtils
+import com.willfp.eco.util.evaluateExpression
+import com.willfp.eco.util.toNiceString
 import java.util.concurrent.TimeUnit
 
 /*
@@ -19,6 +21,8 @@ but it's still best to minimise the memory overhead.
 
 class PlaceholderParser {
     private val placeholderRegex = Regex("%([^% ]+)%")
+    private val prettyMathExpressionRegex = Regex("(\\{\\^\\{)(.)+(}})")
+    private val mathExpressionRegex = Regex("(\\{\\{)(.)+(}})")
 
     private val placeholderLookupCache = Caffeine.newBuilder()
         .expireAfterWrite(1, TimeUnit.SECONDS)
@@ -34,6 +38,29 @@ class PlaceholderParser {
         injections: Collection<InjectablePlaceholder>,
         translateEcoPlaceholders: Boolean = true
     ): String {
+        var processed = text
+
+        // Only evaluate math expressions if there might be any
+        // Checking { as a char is faster than checking a string sequence,
+        // even if it might lead to false positives.
+        if ('{' in processed) {
+            if ('^' in processed) {
+                // Evaluate pretty math expressions
+                processed = prettyMathExpressionRegex.findAll(processed).fold(processed) { acc, matchResult ->
+                    val expression = matchResult.value.substring(3, matchResult.value.length - 2)
+                    val result = evaluateExpression(expression, context)
+                    acc.replace(matchResult.value, result.toNiceString())
+                }
+            }
+
+            // Evaluate math expressions
+            processed = mathExpressionRegex.findAll(processed).fold(processed) { acc, matchResult ->
+                val expression = matchResult.value.substring(2, matchResult.value.length - 2)
+                val result = evaluateExpression(expression, context)
+                acc.replace(matchResult.value, result.toString())
+            }
+        }
+
         /*
 
         Why am I doing injections at the start, and again at the end?
@@ -55,7 +82,7 @@ class PlaceholderParser {
          */
 
         // Apply injections first
-        var processed = injections.fold(text) { acc, injection ->
+        processed = injections.fold(processed) { acc, injection ->
             injection.tryTranslateQuickly(acc, context)
         }
 

eco-core/core-plugin/build.gradle.kts

@@ -25,7 +25,7 @@ dependencies {
 
     // Included in spigot jar
     compileOnly("com.google.code.gson:gson:2.8.8")
-    compileOnly("io.papermc.paper:paper-api:1.19.3-R0.1-SNAPSHOT")
+    compileOnly("io.papermc.paper:paper-api:1.20.2-R0.1-SNAPSHOT")
 
     // Plugin dependencies
     compileOnly("com.comphenix.protocol:ProtocolLib:5.0.0-SNAPSHOT")

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/arrows/ArrowDataListener.kt

@@ -1,7 +1,7 @@
 package com.willfp.eco.internal.spigot.arrows
 
 import com.willfp.eco.core.EcoPlugin
-import com.willfp.eco.core.items.isEmpty
+import com.willfp.eco.core.items.isEcoEmpty
 import org.bukkit.entity.Arrow
 import org.bukkit.entity.LivingEntity
 import org.bukkit.event.EventHandler
@@ -29,7 +29,7 @@ class ArrowDataListener(
 
         val item = entity.equipment?.itemInMainHand
 
-        if (item.isEmpty || item == null) {
+        if (item.isEcoEmpty || item == null) {
             return
         }
 

eco-core/core-plugin/src/main/kotlin/com/willfp/eco/internal/spigot/recipes/StackedRecipeListener.kt

@@ -2,7 +2,7 @@ package com.willfp.eco.internal.spigot.recipes
 
 import com.willfp.eco.core.EcoPlugin
 import com.willfp.eco.core.items.TestableItem
-import com.willfp.eco.core.items.isEmpty
+import com.willfp.eco.core.items.isEcoEmpty
 import com.willfp.eco.core.recipe.Recipes
 import com.willfp.eco.core.recipe.parts.GroupedTestableItems
 import com.willfp.eco.core.recipe.parts.TestableStack
@@ -33,7 +33,7 @@ class StackedRecipeListener(
         }
 
         // Just in case
-        if (inventory.getItem(event.slot).isEmpty) {
+        if (inventory.getItem(event.slot).isEcoEmpty) {
             return
         }
 

eco-core/core-plugin/src/main/resources/plugin.yml

@@ -13,6 +13,10 @@ loadbefore:
   - Lands
   - EconomyShopGUI
   - EconomyShopGUI-Premium
+  - CMI
+  - DeluxeCombat
+  - SCore
+  - ExecutableItems
 softdepend:
   - ProtocolLib
   - WorldGuard
@@ -35,18 +39,15 @@ softdepend:
   - Alice
   - HolographicDisplays
   - GHolo
-  - CMI
   - Essentials
   - Vault
   - BentoBox
-  - DeluxeCombat
   - IridiumSkyblock
   - SuperiorSkyblock2
   - FabledSkyBlock
   - CrashClaim
   - DecentHolograms
   - MythicMobs
-  - ExecutableItems
   - RPGHorses
   - zShop
   - DeluxeSellwands

gradle.properties

@@ -1,2 +1,2 @@
-version = 6.68.2
+version = 6.68.6
 kotlin.incremental.useClasspathSnapshot=false