From b728323df751a0aec5aee890cdce52f50796b12a Mon Sep 17 00:00:00 2001
From: Bertrand Augereau
Date: Sun, 17 Jul 2011 16:06:19 +0200
Subject: DREAMWEB: 'getnumber' ported to C++

---
 engines/dreamweb/dreamgen.cpp | 109 ------------------------------------------
 engines/dreamweb/dreamgen.h   |   3 +-
 engines/dreamweb/stubs.cpp    |  59 +++++++++++++++++++++++
 engines/dreamweb/stubs.h      |   2 +
 4 files changed, 62 insertions(+), 111 deletions(-)

(limited to 'engines/dreamweb')

diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index 3c10ea69d1..1a3b6a2497 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -5233,114 +5233,6 @@ nottrigger2:
 	data.byte(kKerning) = 0;
 }
 
-void DreamGenContext::getnumber() {
-	STACK_CHECK;
-	cx = 0;
-	push(si);
-	push(bx);
-	push(di);
-	push(ds);
-	push(es);
-	di = si;
-wordloop:
-	push(cx);
-	push(dx);
-	getnextword();
-	dx = pop();
-	cx = pop();
-	_cmp(al, 1);
-	if (flags.z())
-		goto endoftext;
-	al = cl;
-	ah = 0;
-	push(bx);
-	bh = 0;
-	_add(ax, bx);
-	bx = pop();
-	_sub(ax, 10);
-	dh = 0;
-	_cmp(ax, dx);
-	if (!flags.c())
-		goto gotoverend;
-	_add(cl, bl);
-	_add(ch, bh);
-	goto wordloop;
-gotoverend:
-	al = dl;
-	_and(al, 1);
-	if (flags.z())
-		goto notcentre;
-	push(cx);
-	al = dl;
-	_and(al, 0xfe);
-	ah = 0;
-	ch = 0;
-	_sub(ax, cx);
-	_add(ax, 20);
-	_shr(ax, 1);
-	cx = pop();
-	es = pop();
-	ds = pop();
-	di = pop();
-	bx = pop();
-	si = pop();
-	_add(di, ax);
-	cl = ch;
-	return;
-notcentre:
-	es = pop();
-	ds = pop();
-	di = pop();
-	bx = pop();
-	si = pop();
-	cl = ch;
-	return;
-endoftext:
-	al = cl;
-	ah = 0;
-	push(bx);
-	bh = 0;
-	_add(ax, bx);
-	bx = pop();
-	_sub(ax, 10);
-	dh = 0;
-	_cmp(ax, dx);
-	if (!flags.c())
-		goto gotoverend2;
-	_add(cl, bl);
-	_add(ch, bh);
-gotoverend2:
-	al = dl;
-	_and(al, 1);
-	if (flags.z())
-		goto notcent2;
-	push(cx);
-	al = dl;
-	_and(al, 0xfe);
-	_add(al, 2);
-	ah = 0;
-	ch = 0;
-	_add(ax, 20);
-	_sub(ax, cx);
-	_shr(ax, 1);
-	cx = pop();
-	es = pop();
-	ds = pop();
-	di = pop();
-	bx = pop();
-	si = pop();
-	_add(di, ax);
-	cl = ch;
-	return;
-notcent2:
-	es = pop();
-	ds = pop();
-	di = pop();
-	bx = pop();
-	si = pop();
-	cl = ch;
-}
-
 void DreamGenContext::fillryan() {
 	STACK_CHECK;
 	es = data.word(kBuffers);
@@ -21554,7 +21446,6 @@ void DreamGenContext::__dispatch_call(uint16 addr) {
 		case addr_printboth: printboth(); break;
 		case addr_printdirect: printdirect(); break;
 		case addr_monprint: monprint(); break;
-		case addr_getnumber: getnumber(); break;
 		case addr_fillryan: fillryan(); break;
 		case addr_fillopen: fillopen(); break;
 		case addr_findallryan: findallryan(); break;
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index 88ecfd53d4..782f4845fc 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -584,7 +584,6 @@ public:
 	static const uint16 addr_findallryan = 0xc328;
 	static const uint16 addr_fillopen = 0xc324;
 	static const uint16 addr_fillryan = 0xc320;
-	static const uint16 addr_getnumber = 0xc318;
 	static const uint16 addr_monprint = 0xc314;
 	static const uint16 addr_printdirect = 0xc310;
 	static const uint16 addr_printboth = 0xc30c;
@@ -1535,7 +1534,7 @@ public:
 	//void printsprites();
 	void checkifperson();
 	void showallobs();
-	void getnumber();
+	//void getnumber();
 	void adjustleft();
 	void calledenslift();
 	void useclearbox();
diff --git a/engines/dreamweb/stubs.cpp b/engines/dreamweb/stubs.cpp
index cd5350823a..b68f7e67df 100644
--- a/engines/dreamweb/stubs.cpp
+++ b/engines/dreamweb/stubs.cpp
@@ -271,6 +271,65 @@ void DreamGenContext::getnextword() {
 	bh = charCount;	
 }
 
+void DreamGenContext::getnumber() {
+	cl = getnumber(dl, (bool)(dl & 1));
+}
+
+uint8 DreamGenContext::getnumber(uint16 maxWidth, bool centered) {
+	uint8 totalWidth = 0;
+	uint8 charCount = 0;
+	push(si);
+	push(bx);
+	push(di);
+	push(ds);
+	push(es);
+	di = si;
+	while (true) {
+		uint8 wordTotalWidth, wordCharCount;
+		uint8 done = getnextword(&wordTotalWidth, &wordCharCount);
+
+		if (done == 1) { //endoftext
+			ax = totalWidth + wordTotalWidth - 10;
+			if (ax < maxWidth) {
+				totalWidth += wordTotalWidth;
+				charCount += wordCharCount;
+			}
+
+			if (centered) {
+				ax = (maxWidth & 0xfe) + 2 + 20 - totalWidth;
+				ax /= 2;
+			} else {
+				ax = 0;
+			}
+			es = pop();
+			ds = pop();
+			di = pop();
+			bx = pop();
+			si = pop();
+			_add(di, ax);
+			return charCount;
+		}
+		ax = totalWidth + wordTotalWidth - 10;
+		if (ax >= maxWidth) { //gotoverend
+			if (centered) {
+				ax = (maxWidth & 0xfe) - totalWidth + 20;
+				ax /= 2;
+			} else {
+				ax = 0;
+			}
+			es = pop();
+			ds = pop();
+			di = pop();
+			bx = pop();
+			si = pop();
+			_add(di, ax);
+			return charCount;
+		}
+		totalWidth += wordTotalWidth;
+		charCount += wordCharCount;
+	}
+}
+
 uint8 DreamGenContext::kernchars(uint8 firstChar, uint8 secondChar, uint8 width) {
 	if ((firstChar == 'a') || (al == 'u')) {
 		if ((secondChar == 'n') || (secondChar == 't') || (secondChar == 'r') || (secondChar == 'i') || (secondChar == 'l'))
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 6d9c08dd2d..b882172b4c 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -38,6 +38,8 @@
 	void quickquit2();
 	void getnextword();
 	uint8 getnextword(uint8 *totalWidth, uint8 *charCount);
+	void getnumber();
+	uint8 getnumber(uint16 maxWidth, bool centered);
 	void kernchars();
 	uint8 kernchars(uint8 firstChar, uint8 secondChar, uint8 width);
 	Sprite *spritetable();
-- 
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