From 21a278bb630fc7bae6f152861900101a58836344 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Sun, 25 Dec 2011 18:26:13 +0200
Subject: DREAMWEB: Port 'outofopen' to C++

---
 devtools/tasmrecover/tasm-recover |  1 +
 engines/dreamweb/dreamgen.cpp     | 70 -------------------------------------
 engines/dreamweb/dreamgen.h       |  1 -
 engines/dreamweb/object.cpp       | 72 +++++++++++++++++++++++++++++++++++----
 engines/dreamweb/stubs.h          |  1 +
 5 files changed, 68 insertions(+), 77 deletions(-)

diff --git a/devtools/tasmrecover/tasm-recover b/devtools/tasmrecover/tasm-recover
index c06f58311a..b058d1ea9e 100755
--- a/devtools/tasmrecover/tasm-recover
+++ b/devtools/tasmrecover/tasm-recover
@@ -661,6 +661,7 @@ generator = cpp(context, "DreamGen", blacklist = [
 	'othersmoker',
 	'out22c',
 	'outofinv',
+	'outofopen',
 	'paltoendpal',
 	'paltostartpal',
 	'panelicons1',
diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index d68bd3b88f..6ecbba7995 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -365,76 +365,6 @@ findopenp1:
 	_add(bx, (0+(228*13)));
 }
 
-void DreamGenContext::outOfOpen() {
-	STACK_CHECK;
-	_cmp(data.byte(kOpenedob), 255);
-	if (flags.z())
-		goto cantuseopen;
-	findOpenPos();
-	ax = es.word(bx);
-	_cmp(al, 255);
-	if (!flags.z())
-		goto canpick4;
-cantuseopen:
-	blank();
-	return;
-canpick4:
-	_cmp(ax, data.word(kOldsubject));
-	if (!flags.z())
-		goto difsub4;
-	_cmp(data.byte(kCommandtype), 228);
-	if (flags.z())
-		goto alreadygrb;
-	data.byte(kCommandtype) = 228;
-difsub4:
-	data.word(kOldsubject) = ax;
-	bx = ax;
-	al = 36;
-	commandWithOb();
-alreadygrb:
-	ax = data.word(kMousebutton);
-	_cmp(ax, data.word(kOldbutton));
-	if (flags.z())
-		return /* (notletgo4) */;
-	_cmp(ax, 1);
-	if (flags.z())
-		goto dogrb;
-	_cmp(ax, 2);
-	if (!flags.z())
-		return /* (notletgo4) */;
-	reExFromOpen();
-	return;
-dogrb:
-	delPointer();
-	data.byte(kPickup) = 1;
-	findOpenPos();
-	ax = es.word(bx);
-	data.byte(kItemframe) = al;
-	data.byte(kObjecttype) = ah;
-	_cmp(ah, 4);
-	if (!flags.z())
-		goto makeintoex;
-	getEitherAd();
-	es.byte(bx+2) = 20;
-	es.byte(bx+3) = 255;
-	goto actuallyout;
-makeintoex:
-	transferToEx();
-	data.byte(kItemframe) = al;
-	data.byte(kObjecttype) = 4;
-	getEitherAd();
-	es.byte(bx+2) = 20;
-	es.byte(bx+3) = 255;
-actuallyout:
-	fillOpen();
-	underTextLine();
-	readMouse();
-	useOpened();
-	showPointer();
-	workToScreen();
-	delPointer();
-}
-
 void DreamGenContext::transferToEx() {
 	STACK_CHECK;
 	emergencyPurge();
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index f585c6a7b4..7bb4793d05 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -454,7 +454,6 @@ public:
 	void __start();
 #include "stubs.h" // Allow hand-reversed functions to have a signature different than void f()
 
-	void outOfOpen();
 	void dirCom();
 	void findFirstPath();
 	void getAnyAd();
diff --git a/engines/dreamweb/object.cpp b/engines/dreamweb/object.cpp
index 6546f19da4..64b3d276bb 100644
--- a/engines/dreamweb/object.cpp
+++ b/engines/dreamweb/object.cpp
@@ -887,9 +887,9 @@ void DreamGenContext::useOpened() {
 	}
 
 	findOpenPos();
-	ax = es.word(bx);
+	uint16 subject = es.word(bx);
 
-	if (al != 255) {
+	if ((subject & 0x00FF) != 255) {
 		swapWithOpen();
 		return;
 	}
@@ -899,7 +899,7 @@ void DreamGenContext::useOpened() {
 		return;
 	}
 
-	uint16 subject = (data.byte(kObjecttype) << 8) | data.byte(kItemframe);
+	subject = (data.byte(kObjecttype) << 8) | data.byte(kItemframe);
 	if (subject == data.word(kOldsubject)) {
 		if (data.byte(kCommandtype) != 227) {
 			data.byte(kCommandtype) = 227;
@@ -945,6 +945,66 @@ void DreamGenContext::useOpened() {
 	delPointer();
 }
 
+void DreamGenContext::outOfOpen() {
+	if (data.byte(kOpenedob) == 255)
+		return;	// cannot use opened object
+
+	findOpenPos();
+	uint16 subject = es.word(bx);
+
+	if ((subject & 0x00FF) == 255) {
+		blank();
+		return;
+	}
+
+	if (subject == data.word(kOldsubject)) {
+		if (data.byte(kCommandtype) != 228) {
+			data.byte(kCommandtype) = 228;
+			data.word(kOldsubject) = subject;
+			commandWithOb(36, subject >> 8, subject & 0x00FF);
+		}
+	} else {
+		data.word(kOldsubject) = subject;
+		commandWithOb(36, subject >> 8, subject & 0x00FF);
+	}
+
+	if (data.word(kMousebutton) == data.word(kOldbutton))
+		return;	// notletgo4
+
+	if (data.word(kMousebutton) != 1) {
+		if (data.word(kMousebutton) != 2)
+			return;	// notletgo4
+
+		reExFromOpen();
+		return;
+	}
+
+	delPointer();
+	data.byte(kPickup) = 1;
+	findOpenPos();
+	subject = es.word(bx);
+	data.byte(kObjecttype) = subject >> 8;
+	data.byte(kItemframe)  = subject & 0xFF;
+
+	if (data.byte(kObjecttype) != 4) {
+		transferToEx();
+		data.byte(kItemframe) = al;
+		data.byte(kObjecttype) = 4;
+	}
+
+	DynObject *object = getEitherAdCPP();
+	object->mapad[0] = 20;
+	object->mapad[1] = 255;
+
+	fillOpen();
+	underTextLine();
+	readMouse();
+	useOpened();
+	showPointer();
+	workToScreenCPP();
+	delPointer();
+}
+
 void DreamGenContext::swapWithOpen() {
 	uint16 subject = (data.byte(kObjecttype) << 8) | data.byte(kItemframe);
 	if (subject == data.word(kOldsubject)) {
@@ -980,9 +1040,9 @@ void DreamGenContext::swapWithOpen() {
 	byte prevType = data.byte(kObjecttype);
 	byte prevFrame = data.byte(kItemframe);
 	findOpenPos();
-	ax = es.word(bx);
-	data.byte(kItemframe) = al;
-	data.byte(kObjecttype) = ah;
+	subject = es.word(bx);
+	data.byte(kObjecttype) = subject >> 8;
+	data.byte(kItemframe)  = subject & 0xFF;
 
 	if (data.byte(kObjecttype) != 4) {
 		transferToEx();
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 0cdd68fa18..4cc0ee0027 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -196,6 +196,7 @@
 	void reExFromInv();
 	void locationPic();
 	void useOpened();
+	void outOfOpen();
 	void swapWithOpen();
 	void swapWithInv();
 
-- 
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