From 6a6938882279d08af526b2a600d971abd54cf7a5 Mon Sep 17 00:00:00 2001
From: dongresource <dongresource@protonmail.com>
Date: Sun, 10 Sep 2023 20:02:52 +0200
Subject: [PATCH] Refactor and generalize NPCEvent logic

---
 src/Combat.cpp     | 10 ++++------
 src/NPCManager.cpp | 12 +++++-------
 src/NPCManager.hpp | 13 ++++---------
 3 files changed, 13 insertions(+), 22 deletions(-)

diff --git a/src/Combat.cpp b/src/Combat.cpp
index 48598b1..80fbab1 100644
--- a/src/Combat.cpp
+++ b/src/Combat.cpp
@@ -316,12 +316,10 @@ void CombatNPC::transition(AIState newState, EntityRef src) {
         transition(AIState::INACTIVE, id);
     }
 
-    // TODO: Properly refactor this
-    if (newState == AIState::DEAD && src.kind == EntityKind::PLAYER) {
-        for (NPCEvent& event : NPCManager::NPCEvents)
-            if (event.trigger == ON_KILLED && event.npcType == type)
-                event.handler(src.sock, this);
-    }
+    // trigger special NPCEvents, if applicable
+    for (NPCEvent& event : NPCManager::NPCEvents)
+        if (event.triggerState == newState && event.npcType == type)
+            event.handler(this);
 }
 #pragma endregion
 
diff --git a/src/NPCManager.cpp b/src/NPCManager.cpp
index 8a368bf..1d80a93 100644
--- a/src/NPCManager.cpp
+++ b/src/NPCManager.cpp
@@ -293,13 +293,12 @@ BaseNPC* NPCManager::getNearestNPC(std::set<Chunk*>* chunks, int X, int Y, int Z
     return npc;
 }
 
-// TODO: Move this to MobAI, possibly
+// TODO: Move this to separate file in ai/ subdir when implementing more events
 #pragma region NPCEvents
 
 // summon right arm and stage 2 body
-static void lordFuseStageTwo(CNSocket *sock, BaseNPC *npc) {
+static void lordFuseStageTwo(CombatNPC *npc) {
     Mob *oldbody = (Mob*)npc; // adaptium, stun
-    Player *plr = PlayerManager::getPlayer(sock);
 
     std::cout << "Lord Fuse stage two" << std::endl;
 
@@ -320,9 +319,8 @@ static void lordFuseStageTwo(CNSocket *sock, BaseNPC *npc) {
 }
 
 // summon left arm and stage 3 body
-static void lordFuseStageThree(CNSocket *sock, BaseNPC *npc) {
+static void lordFuseStageThree(CombatNPC *npc) {
     Mob *oldbody = (Mob*)npc;
-    Player *plr = PlayerManager::getPlayer(sock);
 
     std::cout << "Lord Fuse stage three" << std::endl;
 
@@ -342,8 +340,8 @@ static void lordFuseStageThree(CNSocket *sock, BaseNPC *npc) {
 }
 
 std::vector<NPCEvent> NPCManager::NPCEvents = {
-    NPCEvent(2466, ON_KILLED, lordFuseStageTwo),
-    NPCEvent(2467, ON_KILLED, lordFuseStageThree),
+    NPCEvent(2466, AIState::DEAD, lordFuseStageTwo),
+    NPCEvent(2467, AIState::DEAD, lordFuseStageThree),
 };
 
 #pragma endregion NPCEvents
diff --git a/src/NPCManager.hpp b/src/NPCManager.hpp
index c8738d0..ec497d3 100644
--- a/src/NPCManager.hpp
+++ b/src/NPCManager.hpp
@@ -14,20 +14,15 @@
 
 #define RESURRECT_HEIGHT 400
 
-enum Trigger {
-    ON_KILLED,
-    ON_COMBAT
-};
-
-typedef void (*NPCEventHandler)(CNSocket*, BaseNPC*);
+typedef void (*NPCEventHandler)(CombatNPC*);
 
 struct NPCEvent {
     int32_t npcType;
-    int trigger;
+    AIState triggerState;
     NPCEventHandler handler;
 
-    NPCEvent(int32_t t, int tr, NPCEventHandler hndlr)
-        : npcType(t), trigger(tr), handler(hndlr) {}
+    NPCEvent(int32_t t, AIState tr, NPCEventHandler hndlr)
+        : npcType(t), triggerState(tr), handler(hndlr) {}
 };
 
 namespace NPCManager {