From 678de0f73f4f48348895efdaccb656a4ae583a48 Mon Sep 17 00:00:00 2001
From: Nipun Garg
Date: Thu, 27 Jun 2019 22:28:21 +0530
Subject: HDB: Add _callbacks data

---
 engines/hdb/ai-init.cpp |  3 +++
 engines/hdb/ai.h        | 28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/engines/hdb/ai-init.cpp b/engines/hdb/ai-init.cpp
index 989454cffd..5bb8c89c05 100644
--- a/engines/hdb/ai-init.cpp
+++ b/engines/hdb/ai-init.cpp
@@ -840,6 +840,9 @@ void AI::restartSystem() {
 	// Clear the Auto-Action list
 	memset(_autoActions, 0, sizeof(_autoActions));
 
+	// Clear the Callback List
+	memset(_callbacks, 0, sizeof(_callbacks));
+
 	// Clear the Entity List
 	_ents->clear();
 
diff --git a/engines/hdb/ai.h b/engines/hdb/ai.h
index 33e107a9f4..6f5653ad6c 100644
--- a/engines/hdb/ai.h
+++ b/engines/hdb/ai.h
@@ -39,6 +39,7 @@ enum {
 	kMaxTeleporters = 20,
 	kMaxAutoActions = 30,
 	kMaxLuaEnts = 50,
+	kMaxCallbacks = 20,
 	kPlayerMoveSpeed = 4,
 	kEnemyMoveSpeed = 2,
 	kPushMoveSpeed = (kPlayerMoveSpeed >> 1),
@@ -354,6 +355,15 @@ enum CineType {
 	C_ENDLIST
 };
 
+enum CallbackType {
+	NO_FUNCTION,
+	AI_BARREL_EXPLOSION_END,
+	CALLBACK_DOOR_OPEN_CLOSE,
+	CALLBACK_AUTODOOR_OPEN_CLOSE,
+
+	CALLBACK_END
+};
+
 struct AIStateDef {
 	AIState state;
 	const char name[64];
@@ -640,6 +650,22 @@ struct Trigger {
 	Trigger() : id(""), x(0), y(0), value1(0), value2(0), luaFuncInit(""), luaFuncUse("") {}
 };
 
+struct CallbackDef {
+	CallbackType type;
+	void(*function)(int x, int y);
+
+	CallbackDef() : type(NO_FUNCTION), function(NULL) {}
+	CallbackDef(CallbackType type, void(*function)(int, int)) : type(type), function(function) {}
+};
+
+struct Callback {
+	CallbackType type;
+	uint16 x, y;
+	uint16 delay;
+
+	Callback() : type(NO_FUNCTION), x(0), y(0), delay(0) {}
+};
+
 struct CineCommand {
 	CineType cmdType;
 	double x, y;
@@ -1034,6 +1060,8 @@ public:
 
 	AutoAction _autoActions[kMaxAutoActions];
 
+	Callback _callbacks[kMaxCallbacks];
+
 	Common::Array<ArrowPath *> *_arrowPaths;
 	Common::Array<HereT *> *_hereList;
 	Common::Array<Trigger *> *_triggerList;
-- 
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