1 files changed, 32 insertions, 0 deletions
diff --git a/src/main/kotlin/features/texturepack/ItemPredicate.kt b/src/main/kotlin/features/texturepack/ItemPredicate.kt
new file mode 100644
index 0000000..4302b53
--- /dev/null
+++ b/src/main/kotlin/features/texturepack/ItemPredicate.kt
@@ -0,0 +1,32 @@
+
+package moe.nea.firmament.features.texturepack
+
+import com.google.gson.JsonElement
+import com.google.gson.JsonPrimitive
+import kotlin.jvm.optionals.getOrNull
+import net.minecraft.item.Item
+import net.minecraft.item.ItemStack
+import net.minecraft.registry.RegistryKey
+import net.minecraft.registry.RegistryKeys
+import net.minecraft.util.Identifier
+import moe.nea.firmament.util.MC
+
+class ItemPredicate(
+    val item: Item
+) : FirmamentModelPredicate {
+    override fun test(stack: ItemStack): Boolean {
+        return stack.item == item
+    }
+
+    object Parser : FirmamentModelPredicateParser {
+        override fun parse(jsonElement: JsonElement): ItemPredicate? {
+            if (jsonElement is JsonPrimitive && jsonElement.isString) {
+                val itemKey = RegistryKey.of(RegistryKeys.ITEM,
+                                             Identifier.tryParse(jsonElement.asString)
+                                                 ?: return null)
+                return ItemPredicate(MC.defaultItems.getOptional(itemKey).getOrNull()?.value() ?: return null)
+            }
+            return null
+        }
+    }
+}