From 940c686858d9a0bf92c1473b9a81653a9937b88a Mon Sep 17 00:00:00 2001
From: Eugene Sandulenko <sev@scummvm.org>
Date: Sat, 7 Sep 2013 22:57:56 +0300
Subject: [PATCH] FULLPIPE: Implement CInteraction::isOverlapping()

---
 engines/fullpipe/interaction.cpp | 17 +++++++++++++----
 engines/fullpipe/interaction.h   |  3 ++-
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/engines/fullpipe/interaction.cpp b/engines/fullpipe/interaction.cpp
index 231fe57afa6..f9ea41b2aec 100644
--- a/engines/fullpipe/interaction.cpp
+++ b/engines/fullpipe/interaction.cpp
@@ -72,10 +72,8 @@ void CInteractionController::sortInteractions(int sceneId) {
 	Common::sort(_interactions.begin(), _interactions.end(), CInteractionController::compareInteractions);
 }
 
-int CInteractionController::handleInteraction(GameObject *subject, GameObject *object, int invId) {
-	warning("STUB: CInteractionController::handleInteraction()");
-
-	return 0;
+bool CInteractionController::handleInteraction(GameObject *subj, GameObject *obj, int invId) {
+	return true;
 }
 
 CInteraction::CInteraction() {
@@ -172,6 +170,17 @@ bool CInteraction::canInteract(GameObject *obj1, GameObject *obj2, int invId) {
 	return true;
 }
 
+bool CInteraction::isOverlapping(StaticANIObject *subj, StaticANIObject *obj) {
+	if (abs(_xOffs + obj->_ox - subj->_ox) <= 1
+		&& abs(obj->_oy + _yOffs - subj->_oy) <= 1) {
+		if (!this->_staticsId2 || subj->_statics != 0 && subj->_statics->_staticsId == _staticsId2) {
+			if (!_staticsId1 || !(_flags & 1) || obj->_statics != 0 && obj->_statics->_staticsId == _staticsId1)
+				return true;
+		}
+	}
+	return false;
+}
+
 bool EntranceInfo::load(MfcArchive &file) {
 	debug(5, "EntranceInfo::load()");
 
diff --git a/engines/fullpipe/interaction.h b/engines/fullpipe/interaction.h
index b336641dc1e..d5ea5eaf9ca 100644
--- a/engines/fullpipe/interaction.h
+++ b/engines/fullpipe/interaction.h
@@ -54,6 +54,7 @@ class CInteraction : public CObject {
 	CInteraction();
 	virtual bool load(MfcArchive &file);
 	bool canInteract(GameObject *obj1, GameObject *obj2, int invId);
+	bool isOverlapping(StaticANIObject *subj, StaticANIObject *obj);
 };
 
 class CInteractionController : public CObject {
@@ -75,7 +76,7 @@ class CInteractionController : public CObject {
 
 	void sortInteractions(int sceneId);
 
-	int handleInteraction(GameObject *subject, GameObject *object, int invId);
+	bool handleInteraction(GameObject *subj, GameObject *obj, int invId);
 };
 
 struct EntranceInfo {