Add rollLootTable method for loot generation and update version (#367)

Author: twisti-dev

gradle.properties

@@ -7,6 +7,6 @@ org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled
 javaVersion=25
 mcVersion=26.1.2
 group=dev.slne.surf.api
-version=3.17.2
+version=3.18.0
 relocationPrefix=dev.slne.surf.api.libs
 snapshot=false

surf-api-paper/surf-api-paper-nms/surf-api-paper-nms-v1-21-11/src/main/kotlin/dev/slne/surf/api/paper/server/nms/v1_21_11/bridges/V1_21_11SurfPaperNmsLootTableBridgeImpl.kt

@@ -52,4 +52,36 @@ class V1_21_11SurfPaperNmsLootTableBridgeImpl : SurfPaperNmsLootTableBridge {
         return lootTable.getRandomItems(lootParams, nmsEntity.lootTableSeed)
             .mapTo(mutableObjectListOf()) { it.toBukkit() }
     }
+
+    override fun rollLootTable(
+        entity: LivingEntity,
+        damageSource: DamageSource,
+        causedByPlayer: Boolean
+    ): Collection<ItemStack> {
+        val nmsEntity = entity.toNms()
+        val lootTableKey = nmsEntity.lootTable.getOrNull() ?: return emptyObjectList()
+        val lootTable = MinecraftServer.getServer().reloadableRegistries().getLootTable(lootTableKey)
+        val nmsDamageSource = damageSource.toNms()
+
+        val paramBuilder = LootParams.Builder(nmsEntity.level() as ServerLevel)
+            .withParameter(LootContextParams.THIS_ENTITY, nmsEntity)
+            .withParameter(LootContextParams.ORIGIN, nmsEntity.position())
+            .withParameter(LootContextParams.DAMAGE_SOURCE, nmsDamageSource)
+            .withOptionalParameter(LootContextParams.ATTACKING_ENTITY, nmsDamageSource.entity)
+            .withOptionalParameter(
+                LootContextParams.DIRECT_ATTACKING_ENTITY,
+                nmsDamageSource.directEntity
+            )
+
+        val lastHurtByPlayer = nmsEntity.getLastHurtByPlayer()
+        if (causedByPlayer && lastHurtByPlayer != null) {
+            paramBuilder.withParameter(LootContextParams.LAST_DAMAGE_PLAYER, lastHurtByPlayer)
+                .withLuck(lastHurtByPlayer.luck)
+        }
+
+        val lootParams = paramBuilder.create(LootContextParamSets.ENTITY)
+
+        return lootTable.getRandomItems(lootParams, nmsEntity.lootTableSeed)
+            .mapTo(mutableObjectListOf()) { it.toBukkit() }
+    }
 }

surf-api-paper/surf-api-paper-nms/surf-api-paper-nms-v26-1/src/main/kotlin/dev/slne/surf/api/paper/server/nms/v26_1/bridges/V26_1SurfPaperNmsLootTableBridgeImpl.kt

@@ -53,4 +53,36 @@ class V26_1SurfPaperNmsLootTableBridgeImpl : SurfPaperNmsLootTableBridge {
         return lootTable.getRandomItems(lootParams, nmsEntity.lootTableSeed)
             .mapTo(mutableObjectListOf()) { it.toBukkit() }
     }
+
+    override fun rollLootTable(
+        entity: LivingEntity,
+        damageSource: DamageSource,
+        causedByPlayer: Boolean
+    ): Collection<ItemStack> {
+        val nmsEntity = entity.toNms()
+        val lootTableKey = nmsEntity.lootTable.getOrNull() ?: return emptyObjectList()
+        val lootTable = MinecraftServer.getServer().reloadableRegistries().getLootTable(lootTableKey)
+        val nmsDamageSource = damageSource.toNms()
+
+        val paramBuilder = LootParams.Builder(nmsEntity.level() as ServerLevel)
+            .withParameter(LootContextParams.THIS_ENTITY, nmsEntity)
+            .withParameter(LootContextParams.ORIGIN, nmsEntity.position())
+            .withParameter(LootContextParams.DAMAGE_SOURCE, nmsDamageSource)
+            .withOptionalParameter(LootContextParams.ATTACKING_ENTITY, nmsDamageSource.entity)
+            .withOptionalParameter(
+                LootContextParams.DIRECT_ATTACKING_ENTITY,
+                nmsDamageSource.directEntity
+            )
+
+        val lastHurtByPlayer = nmsEntity.getLastHurtByPlayer()
+        if (causedByPlayer && lastHurtByPlayer != null) {
+            paramBuilder.withParameter(LootContextParams.LAST_DAMAGE_PLAYER, lastHurtByPlayer)
+                .withLuck(lastHurtByPlayer.luck)
+        }
+
+        val lootParams = paramBuilder.create(LootContextParamSets.ENTITY)
+
+        return lootTable.getRandomItems(lootParams, nmsEntity.lootTableSeed)
+            .mapTo(mutableObjectListOf()) { it.toBukkit() }
+    }
 }

surf-api-paper/surf-api-paper/api/surf-api-paper.api

@@ -1703,11 +1703,13 @@ public final class dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsItemBridge$Co
 public abstract interface class dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge {
 	public static final field Companion Ldev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge$Companion;
 	public abstract fun getDifferentLootTable (Lorg/bukkit/entity/LivingEntity;Lorg/bukkit/damage/DamageSource;Lorg/bukkit/entity/EntityType;Z)Ljava/util/Collection;
+	public abstract fun rollLootTable (Lorg/bukkit/entity/LivingEntity;Lorg/bukkit/damage/DamageSource;Z)Ljava/util/Collection;
 }
 
 public final class dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge$Companion : dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge {
 	public fun getDifferentLootTable (Lorg/bukkit/entity/LivingEntity;Lorg/bukkit/damage/DamageSource;Lorg/bukkit/entity/EntityType;Z)Ljava/util/Collection;
 	public final fun getINSTANCE ()Ldev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge;
+	public fun rollLootTable (Lorg/bukkit/entity/LivingEntity;Lorg/bukkit/damage/DamageSource;Z)Ljava/util/Collection;
 }
 
 public abstract interface class dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsNbtBridge {

surf-api-paper/surf-api-paper/src/main/kotlin/dev/slne/surf/api/paper/nms/bridges/SurfPaperNmsLootTableBridge.kt

@@ -17,6 +17,12 @@ interface SurfPaperNmsLootTableBridge {
         causedByPlayer: Boolean,
     ): Collection<ItemStack>
 
+    fun rollLootTable(
+        entity: LivingEntity,
+        damageSource: DamageSource,
+        causedByPlayer: Boolean,
+    ): Collection<ItemStack>
+
     companion object : SurfPaperNmsLootTableBridge by bridge {
         val INSTANCE get() = bridge
     }