From d25e7ca4fc63b5345ab4f7364423b835ce5d9ed3 Mon Sep 17 00:00:00 2001
From: dongresource <dongresource@protonmail.com>
Date: Tue, 15 Dec 2020 23:16:18 +0100
Subject: [PATCH] Implement rudimentary NPC scripting framework and Lord Fuse
 boss fight

---
 src/MobManager.cpp |  5 +++++
 src/NPCManager.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 src/NPCManager.hpp | 17 +++++++++++++++
 3 files changed, 76 insertions(+)

diff --git a/src/MobManager.cpp b/src/MobManager.cpp
index 9c2b627..6a1ca23 100644
--- a/src/MobManager.cpp
+++ b/src/MobManager.cpp
@@ -404,6 +404,11 @@ void MobManager::killMob(CNSocket *sock, Mob *mob) {
     // delay the despawn animation
     mob->despawned = false;
 
+    // fire any triggered events
+    for (NPCEvent& event : NPCManager::NPCEvents)
+        if (event.trigger == ON_KILLED && event.npcType == mob->appearanceData.iNPCType)
+            event.handler(sock, mob);
+
     auto it = TransportManager::NPCQueues.find(mob->appearanceData.iNPC_ID);
     if (it == TransportManager::NPCQueues.end() || it->second.empty())
         return;
diff --git a/src/NPCManager.cpp b/src/NPCManager.cpp
index f7961b6..e3594c6 100644
--- a/src/NPCManager.cpp
+++ b/src/NPCManager.cpp
@@ -816,3 +816,57 @@ void NPCManager::eggPickup(CNSocket* sock, CNPacketData* data) {
         egg->appearanceData.iHP = 0;
     }
 }
+
+#pragma region NPCEvents
+
+// summon right arm and stage 2 body
+static void lordFuseStageTwo(CNSocket *sock, BaseNPC *npc) {
+    Mob *oldbody = (Mob*)npc; // adaptium, stun
+    Player *plr = PlayerManager::getPlayer(sock);
+
+    std::cout << "Lord Fuse stage two" << std::endl;
+
+    // Fuse doesn't move; spawnX, etc. is shorter to write than *appearanceData*
+    // Blastons, Heal
+    Mob *newbody = (Mob*)NPCManager::summonNPC(oldbody->spawnX, oldbody->spawnY, oldbody->spawnZ, plr->instanceID, 2467);
+
+    newbody->appearanceData.iAngle = oldbody->appearanceData.iAngle;
+    NPCManager::updateNPCPosition(newbody->appearanceData.iNPC_ID, newbody->spawnX, newbody->spawnY, newbody->spawnZ,
+        plr->instanceID, oldbody->appearanceData.iAngle);
+
+    // right arm, Adaptium, Stun
+    Mob *arm = (Mob*)NPCManager::summonNPC(oldbody->spawnX - 600, oldbody->spawnY, oldbody->spawnZ, plr->instanceID, 2469);
+
+    arm->appearanceData.iAngle = oldbody->appearanceData.iAngle;
+    NPCManager::updateNPCPosition(arm->appearanceData.iNPC_ID, arm->spawnX, arm->spawnY, arm->spawnZ,
+        plr->instanceID, oldbody->appearanceData.iAngle);
+}
+
+// summon left arm and stage 3 body
+static void lordFuseStageThree(CNSocket *sock, BaseNPC *npc) {
+    Mob *oldbody = (Mob*)npc;
+    Player *plr = PlayerManager::getPlayer(sock);
+
+    std::cout << "Lord Fuse stage three" << std::endl;
+
+    // Cosmic, Damage Point
+    Mob *newbody = (Mob*)NPCManager::summonNPC(oldbody->spawnX, oldbody->spawnY, oldbody->spawnZ, plr->instanceID, 2468);
+
+    newbody->appearanceData.iAngle = oldbody->appearanceData.iAngle;
+    NPCManager::updateNPCPosition(newbody->appearanceData.iNPC_ID, newbody->spawnX, newbody->spawnY, newbody->spawnZ,
+        plr->instanceID, oldbody->appearanceData.iAngle);
+
+    // Blastons, Heal
+    Mob *arm = (Mob*)NPCManager::summonNPC(oldbody->spawnX + 600, oldbody->spawnY, oldbody->spawnZ, plr->instanceID, 2470);
+
+    arm->appearanceData.iAngle = oldbody->appearanceData.iAngle;
+    NPCManager::updateNPCPosition(arm->appearanceData.iNPC_ID, arm->spawnX, arm->spawnY, arm->spawnZ,
+        plr->instanceID, oldbody->appearanceData.iAngle);
+}
+
+std::vector<NPCEvent> NPCManager::NPCEvents = {
+    NPCEvent(2466, ON_KILLED, lordFuseStageTwo),
+    NPCEvent(2467, ON_KILLED, lordFuseStageThree),
+};
+
+#pragma endregion NPCEvents
diff --git a/src/NPCManager.hpp b/src/NPCManager.hpp
index 95ed318..7250f6e 100644
--- a/src/NPCManager.hpp
+++ b/src/NPCManager.hpp
@@ -12,6 +12,22 @@
 
 #define RESURRECT_HEIGHT 400
 
+// placeholder; there's only one trigger type right now
+enum Trigger {
+    ON_KILLED
+};
+
+typedef void (*NPCEventHandler)(CNSocket*, BaseNPC*);
+
+struct NPCEvent {
+    int32_t npcType;
+    int trigger;
+    NPCEventHandler handler;
+
+    NPCEvent(int32_t t, int tr, NPCEventHandler hndlr)
+        : npcType(t), trigger(tr), handler(hndlr) {}
+};
+
 // this should really be called vec3 or something...
 struct WarpLocation {
     int x, y, z, instanceID, isInstance, limitTaskID, npcID;
@@ -40,6 +56,7 @@ namespace NPCManager {
     extern std::map<int32_t, BaseNPC*> NPCs;
     extern std::map<int32_t, WarpLocation> Warps;
     extern std::vector<WarpLocation> RespawnPoints;
+    extern std::vector<NPCEvent> NPCEvents;
     extern std::unordered_map<int, Egg*> Eggs;
     extern std::map<std::pair<CNSocket*, int32_t>, time_t> EggBuffs;
     extern std::unordered_map<int, EggType> EggTypes;