From 30f602b6cb265000d4ac95e645598d324e3d5d49 Mon Sep 17 00:00:00 2001
From: Paul Gilbert <dreammaster@scummvm.org>
Date: Sat, 22 Nov 2014 22:17:39 -0500
Subject: [PATCH] ACCESS: Further fixes for panning

---
 engines/access/access.cpp                | 10 +++++-----
 engines/access/access.h                  |  2 +-
 engines/access/amazon/amazon_scripts.cpp | 11 +++++++----
 engines/access/asurface.h                |  2 ++
 4 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/engines/access/access.cpp b/engines/access/access.cpp
index b309e92b2955..e87b647b597c 100644
--- a/engines/access/access.cpp
+++ b/engines/access/access.cpp
@@ -72,7 +72,7 @@ AccessEngine::AccessEngine(OSystem *syst, const AccessGameDescription *gameDesc)
 	_scaleT1 = 0;
 	_scaleMaxY = 0;
 	_scaleI = 0;
-	_scaleFlag = false;
+	_imgUnscaled = false;
 	_canSaveLoad = false;
 	_eseg = nullptr;
 
@@ -351,13 +351,13 @@ void AccessEngine::plotList1() {
 	for (uint idx = 0; idx < _images.size(); ++idx) {
 		ImageEntry &ie = _images[idx];
 
-		_scaleFlag = (ie._flags & 8) != 0;
+		_imgUnscaled = (ie._flags & IMGFLAG_UNSCALED) != 0;
 		Common::Point pt = ie._position - _screen->_bufferStart;
 		SpriteResource *sprites = ie._spritesPtr;
 		SpriteFrame *frame = sprites->getFrame(ie._frameNumber);
 
 		Common::Rect bounds(pt.x, pt.y, pt.x + frame->w, pt.y + frame->h);
-		if (!_scaleFlag) {
+		if (!_imgUnscaled) {
 			bounds.setWidth(_screen->_scaleTable1[frame->w]);
 			bounds.setHeight(_screen->_scaleTable1[frame->h]);
 		}
@@ -376,7 +376,7 @@ void AccessEngine::plotList1() {
 
 			_newRects.push_back(bounds);
 
-			if (!_scaleFlag) {
+			if (!_imgUnscaled) {
 				_buffer2._rightSkip /= _scale;
 				bounds.setWidth(bounds.width() / _scale);
 
@@ -386,7 +386,7 @@ void AccessEngine::plotList1() {
 					_buffer2.sPlotF(frame, destBounds);
 				}
 			} else {
-				if (ie._flags & 2) {
+				if (ie._flags & IMGFLAG_BACKWARDS) {
 					_buffer2.plotB(frame, Common::Point(destBounds.left, destBounds.top));
 				} else {
 					_buffer2.plotF(frame, Common::Point(destBounds.left, destBounds.top));
diff --git a/engines/access/access.h b/engines/access/access.h
index 36951c750441..805abcce02be 100644
--- a/engines/access/access.h
+++ b/engines/access/access.h
@@ -189,7 +189,7 @@ class AccessEngine : public Engine {
 	int _scaleT1;
 	int _scaleMaxY;
 	int _scaleI;
-	bool _scaleFlag;
+	bool _imgUnscaled;
 	bool _canSaveLoad;
 
 	Resource *_eseg;
diff --git a/engines/access/amazon/amazon_scripts.cpp b/engines/access/amazon/amazon_scripts.cpp
index d4018c2defb0..4d354017c63b 100644
--- a/engines/access/amazon/amazon_scripts.cpp
+++ b/engines/access/amazon/amazon_scripts.cpp
@@ -425,11 +425,11 @@ void AmazonScripts::pan() {
 		for (int i = 0; i < _pNumObj; i++) {
 			_pObjZ[i] += _zTrack;
 			_pObjXl[i] += (_pObjZ[i] * tx) & 0xff;
-			_pObjX[i] += (_pObjZ[i] * tx) >> 8 + (_pObjXl[i] >> 8);
+			_pObjX[i] += ((_pObjZ[i] * tx) >> 8) + (_pObjXl[i] >> 8);
 			_pObjXl[i] &= 0xff;
 
 			_pObjYl[i] += (_pObjZ[i] * ty) & 0xff;
-			_pObjY[i] += (_pObjZ[i] * ty) >> 8 + (_pObjYl[i] >> 8);
+			_pObjY[i] += ((_pObjZ[i] * ty) >> 8) + (_pObjYl[i] >> 8);
 			_pObjYl[i] &= 0xff;
 		}
 	}
@@ -697,8 +697,9 @@ void AmazonScripts::mWhileDoOpen() {
 	_zCam = 270;
 	_vm->_timers[24]._timer = _vm->_timers[24]._initTm = 1;
 	++_vm->_timers[24]._flag;
-	_pNumObj = 10;
+	_vm->_timers.updateTimers();
 
+	_pNumObj = 10;
 	for (int i = 0; i < _pNumObj; i++) {
 		_pObject[i] = _vm->_objectsTable[1];
 		_pImgNum[i] = OPENING_OBJS[i][0];
@@ -731,7 +732,9 @@ void AmazonScripts::mWhileDoOpen() {
 			screen.forceFadeIn();
 		}
 
-		events.pollEvents();		
+		events.pollEvents();
+		g_system->delayMillis(10);
+
 		if (events._leftButton || events._rightButton || events._keypresses.size() > 0) {
 			_game->_skipStart = true;
 			_vm->_sound->newMusic(10, 1);
diff --git a/engines/access/asurface.h b/engines/access/asurface.h
index d066589f8408..1c30db8915c2 100644
--- a/engines/access/asurface.h
+++ b/engines/access/asurface.h
@@ -131,6 +131,8 @@ class SpriteResource {
 	SpriteFrame *getFrame(int idx) { return _frames[idx]; }
 };
 
+enum ImageFlag { IMGFLAG_BACKWARDS = 2, IMGFLAG_UNSCALED = 8 };
+
 class ImageEntry {
 public:
 	int _frameNumber;