DREAMWEB: Port rollEm() to C++

7 files changed, 54 insertions, 104 deletions

diff --git a/engines/dreamweb/dreambase.h b/engines/dreamweb/dreambase.h
index 0438defc05..3bc2757ac8 100644
--- a/engines/dreamweb/dreambase.h
+++ b/engines/dreamweb/dreambase.h
@@ -563,6 +563,9 @@ public:
 	bool hangOnPQ();
 	void redes();
 
+	// from titles.cpp
+	void hangOne(uint16 delay);
+
 	// from use.cpp
 	void placeFreeObject(uint8 index);
 	void removeFreeObject(uint8 index);
@@ -710,6 +713,8 @@ public:
 	void createPanel();
 	void createPanel2();
 	void showPanel();
+	void rollEndCredits2();
+	void rollEm();
 };
 
 
diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index e92291178c..fcf8dc6727 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -73,100 +73,6 @@ void DreamGenContext::transferMap() {
 	_add(data.word(kExframepos), cx);
 }
 
-void DreamGenContext::rollEm() {
-	STACK_CHECK;
-	cl = 160;
-	ch = 160;
-	di = 25;
-	bx = 20;
-	ds = data.word(kMapstore);
-	si = 0;
-	multiGet();
-	es = data.word(kTextfile1);
-	si = 49*2;
-	ax = es.word(si);
-	si = ax;
-	_add(si, (66*2));
-	cx = 80;
-endcredits21:
-	push(cx);
-	bx = 10;
-	cx = data.word(kLinespacing);
-endcredits22:
-	push(cx);
-	push(si);
-	push(di);
-	push(es);
-	push(bx);
-	vSync();
-	cl = 160;
-	ch = 160;
-	di = 25;
-	bx = 20;
-	ds = data.word(kMapstore);
-	si = 0;
-	multiPut();
-	vSync();
-	bx = pop();
-	es = pop();
-	di = pop();
-	si = pop();
-	push(si);
-	push(di);
-	push(es);
-	push(bx);
-	cx = 18;
-onelot2:
-	push(cx);
-	di = 25;
-	dx = 161;
-	ax = 0;
-	printDirect();
-	_add(bx, data.word(kLinespacing));
-	cx = pop();
-	if (--cx)
-		goto onelot2;
-	vSync();
-	cl = 160;
-	ch = 160;
-	di = 25;
-	bx = 20;
-	multiDump();
-	bx = pop();
-	es = pop();
-	di = pop();
-	si = pop();
-	cx = pop();
-	_cmp(data.byte(kLasthardkey), 1);
-	if (flags.z())
-		goto endearly2;
-	_dec(bx);
-	if (--cx)
-		goto endcredits22;
-	cx = pop();
-looknext2:
-	al = es.byte(si);
-	_inc(si);
-	_cmp(al, ':');
-	if (flags.z())
-		goto gotnext2;
-	_cmp(al, 0);
-	if (flags.z())
-		goto gotnext2;
-	goto looknext2;
-gotnext2:
-	_cmp(data.byte(kLasthardkey), 1);
-	if (flags.z())
-		return /* (endearly) */;
-	if (--cx)
-		goto endcredits21;
-	cx = 120;
-	hangOne();
-	return;
-endearly2:
-	cx = pop();
-}
-
 void DreamGenContext::fillOpen() {
 	STACK_CHECK;
 	delTextLine();
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index 4d6946e8ab..40046c4379 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -460,7 +460,6 @@ public:
 	void pickupConts();
 	void transferMap();
 	void getSetAd();
-	void rollEm();
 	void findAllOpen();
 	void fillOpen();
 	void dreamweb();
diff --git a/engines/dreamweb/sprite.cpp b/engines/dreamweb/sprite.cpp
index c9ea699988..72be878e14 100644
--- a/engines/dreamweb/sprite.cpp
+++ b/engines/dreamweb/sprite.cpp
@@ -706,6 +706,8 @@ void DreamBase::intro3Text(uint16 nextReelPointer) {
 }
 
 void DreamBase::rollEndCredits() {
+	// Note: This function is very similar to rollEm() in vgafades.cpp
+
 	playChannel0(16, 255);
 	data.byte(kVolume) = 7;
 	data.byte(kVolumeto) = 0;
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 9e547837c7..9e1649dcaa 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -107,8 +107,6 @@
 	void inventory();
 	void mainScreen();
 	void zoomOnOff();
-	void hangOne(uint16 delay);
-	void hangOne();
 	void bibleQuote();
 	void realCredits();
 	void runIntroSeq();
@@ -131,7 +129,6 @@
 	void showGun();
 	void endGame();
 	void monkSpeaking();
-	void rollEndCredits2();
 	void triggerMessage(uint16 index);
 	void processTrigger();
 	void updateSymbolTop();
diff --git a/engines/dreamweb/titles.cpp b/engines/dreamweb/titles.cpp
index dd8b3550cf..f3dafa38d9 100644
--- a/engines/dreamweb/titles.cpp
+++ b/engines/dreamweb/titles.cpp
@@ -110,7 +110,7 @@ void DreamGenContext::bibleQuote() {
 	data.byte(kLasthardkey) = 0;
 }
 
-void DreamGenContext::hangOne(uint16 delay) {
+void DreamBase::hangOne(uint16 delay) {
 	do {
 		vSync();
 		if (data.byte(kLasthardkey) == 1)
@@ -118,10 +118,6 @@ void DreamGenContext::hangOne(uint16 delay) {
 	} while	(--delay);
 }
 
-void DreamGenContext::hangOne() {
-	hangOne(cx);
-}
-
 void DreamGenContext::intro() {
 	loadTempText("DREAMWEB.T82");
 	loadPalFromIFF();
diff --git a/engines/dreamweb/vgafades.cpp b/engines/dreamweb/vgafades.cpp
index 80f5ce608a..23a8655fa1 100644
--- a/engines/dreamweb/vgafades.cpp
+++ b/engines/dreamweb/vgafades.cpp
@@ -281,8 +281,53 @@ void DreamBase::dumpCurrent() {
 	engine->setPalette(pal, 128, 128);
 }
 
-void DreamGenContext::rollEndCredits2() {
+void DreamBase::rollEndCredits2() {
 	rollEm();
 }
 
+void DreamBase::rollEm() {
+	// Note: This function is very similar to rollEndCredits() in sprite.cpp
+
+	multiGet(mapStore(), 25, 20, 160, 160);
+
+	const uint8 *string = getTextInFile1(49);
+	const int linespacing = data.word(kLinespacing);
+
+	for (int i = 0; i < 80; ++i) {
+		// Output the text, initially with an offset of 10 pixels,
+		// then move it up one pixel until we shifted it by a complete
+		// line of text.
+		for (int j = 0; j < linespacing; ++j) {
+			vSync();
+			multiPut(mapStore(), 25, 20, 160, 160);
+			vSync();
+
+			// Output up to 18 lines of text
+			uint16 y = 10 - j;
+			const uint8 *tmp_str = string;
+			for (int k = 0; k < 18; ++k) {
+				DreamBase::printDirect(&tmp_str, 25, &y, 160 + 1, true);
+				y += linespacing;
+			}
+
+			vSync();
+			multiDump(25, 20, 160, 160);
+
+			if (data.byte(kLasthardkey) == 1)
+				return;
+		}
+
+		// Skip to the next text line
+		byte c;
+		do {
+			c = *string++;
+		} while (c != ':' && c != 0);
+
+		if (data.byte(kLasthardkey) == 1)
+			return;
+	}
+
+	hangOne(120);
+}
+
 } // End of namespace DreamGen