Minor dialogue and UI bug fixing

src/items/GameObjectLoader.cpp

@@ -391,7 +391,7 @@ namespace ZL {
 			npc->modelScale       = npcData.modelScale;
 			npc->position         = Eigen::Vector3f(npcData.positionX, npcData.positionY, npcData.positionZ);
 			npc->facingAngle      = npcData.facingAngle;
-			npc->hp               = npcData.hp;
+			npc->setHp(npcData.hp);
 			npc->initialHp        = npcData.hp;
 			npc->canAttack        = npcData.canAttack;
 			npc->enabled          = npcData.enabled;