From d88f4fb7c0a8600d57652419faa51b175a0aac10 Mon Sep 17 00:00:00 2001
From: Nipun Garg
Date: Wed, 3 Jul 2019 05:50:36 +0530
Subject: HDB: Add callbackDoorOpenClose() and use function

---
 engines/hdb/ai-player.cpp |  4 ----
 engines/hdb/ai-use.cpp    | 24 ++++++++++++++++++++++--
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/engines/hdb/ai-player.cpp b/engines/hdb/ai-player.cpp
index 6a32df5f2d..ca5797c591 100644
--- a/engines/hdb/ai-player.cpp
+++ b/engines/hdb/ai-player.cpp
@@ -1444,10 +1444,6 @@ void aiNoneInit2(AIEntity *e) {
 	warning("STUB: AI: aiNoneInit2 required");
 }
 
-void callbackDoorOpenClose(int x, int y) {
-	warning("STUB: AI: callbackDoorOpenClose required");
-}
-
 // Utility Functions
 void aiAnimateStanddown(AIEntity *e, int speed) {
 	if (e->value2-- > 0)
diff --git a/engines/hdb/ai-use.cpp b/engines/hdb/ai-use.cpp
index 83a294d86a..188244ce1f 100644
--- a/engines/hdb/ai-use.cpp
+++ b/engines/hdb/ai-use.cpp
@@ -67,10 +67,30 @@ bool AI::useTouchplateOn(AIEntity *e, int x, int y, int targetX, int targetY, in
 	return false;
 }
 
+void callbackDoorOpenClose(int x, int y) {
+	int	tileIndex = g_hdb->_map->getMapBGTileIndex(x, y);
+
+	// is the door gonna close on something?  if so, wait again
+	if (!g_hdb->_ai->findEntity(x, y)) {
+		g_hdb->_ai->addCallback(CALLBACK_DOOR_OPEN_CLOSE, x, y, kDelay5Seconds);
+		return;
+	}
+
+	g_hdb->_ai->addAnimateTarget(x, y, tileIndex, tileIndex + 3, ANIM_SLOW, false, true, NULL);
+	if (g_hdb->_map->onScreen(x, y))
+		warning("STUB: Play SND_DOOR_OPEN_CLOSE");
+	return;
+}
+
 // Normal Door
 bool AI::useDoorOpenClose(AIEntity *e, int x, int y) {
-	warning("STUB: Define useDoorOpenClose");
-	return false;
+	int tileIndex = g_hdb->_map->getMapBGTileIndex(x, y);
+
+	addAnimateTarget(x, y, tileIndex, tileIndex - 3, ANIM_SLOW, false, true, NULL);
+	addCallback(CALLBACK_DOOR_OPEN_CLOSE, x, y, kDelay5Seconds);
+	if (g_hdb->_map->onScreen(x, y))
+		warning("Play SND_DOOR_OPEN_CLOSE");
+	return true;
 }
 
 void callbackAutoDoorOpenClose(int x, int y) {
-- 
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