fix: Citizens trait (#210)

Author: toxicity188

core/src/main/kotlin/kr/toxicity/model/compatibility/citizens/trait/ModelTrait.kt

@@ -8,19 +8,17 @@ package kr.toxicity.model.compatibility.citizens.trait
 
 import kr.toxicity.model.api.BetterModel
 import kr.toxicity.model.api.data.renderer.ModelRenderer
-import net.citizensnpcs.api.event.DespawnReason
 import net.citizensnpcs.api.trait.Trait
 import net.citizensnpcs.api.trait.TraitName
 import net.citizensnpcs.api.util.DataKey
-import net.citizensnpcs.api.util.RemoveReason
 
 @TraitName("model")
 class ModelTrait : Trait("model") {
     private var _renderer: ModelRenderer? = null
     var renderer
         get() = _renderer
         set(value) {
-            npc.entity?.let {
+            npc?.entity?.let {
                 value?.create(it) ?: BetterModel.registryOrNull(it.uniqueId)?.close()
             }
             _renderer = value
@@ -35,13 +33,13 @@ class ModelTrait : Trait("model") {
     }
 
     override fun save(key: DataKey) {
-        npc.entity?.uniqueId?.let { uuid ->
+        npc?.entity?.uniqueId?.let { uuid ->
             key.setString("", BetterModel.registryOrNull(uuid)?.first()?.name())
         }
     }
 
     override fun onSpawn() {
-        npc.entity?.let {
+        npc?.entity?.let {
             if (BetterModel.registryOrNull(it.uniqueId) == null) {
                 renderer?.create(it)
             }
@@ -58,17 +56,9 @@ class ModelTrait : Trait("model") {
         }
     }
 
-    override fun onDespawn(reason: DespawnReason?) {
-        onDespawn()
-    }
-
     override fun onRemove() {
         npc?.entity?.uniqueId?.let {
             BetterModel.registryOrNull(it)?.close()
         }
     }
-
-    override fun onRemove(reason: RemoveReason?) {
-        onRemove()
-    }
 }