Make instance missions reset upon warping out

src/NPCManager.cpp

@@ -2,6 +2,7 @@
 #include "ItemManager.hpp"
 #include "settings.hpp"
 #include "MobManager.hpp"
+#include "MissionManager.hpp"
 
 #include <cmath>
 #include <algorithm>
@@ -588,6 +589,21 @@ void NPCManager::handleWarp(CNSocket* sock, int32_t warpId) {
     if (Warps.find(warpId) == Warps.end())
         return;
 
+    // loop through all tasks; if the required instance is being left, "fail" the task
+    for (int taskNum : plrv.plr->tasks) {
+        if (MissionManager::Tasks.find(taskNum) == MissionManager::Tasks.end())
+            continue; // sanity check
+
+        TaskData* task = MissionManager::Tasks[taskNum];
+        if ((plrv.plr->instanceID & 0xffffffff) == (int)(task->task["m_iRequireInstanceID"])) { // instance ID matches
+            int failTaskID = task->task["m_iFOutgoingTask"];
+            if (failTaskID != 0) {
+                MissionManager::quitTask(sock, taskNum);
+                // TODO: start fail task
+            }
+        }
+    }
+
     // std::cerr << "Warped to Map Num:" << Warps[warpId].instanceID << " NPC ID " << Warps[warpId].npcID << std::endl;
     if (Warps[warpId].isInstance)
     {