From 3ce4f2654075a5bc1b2b93eda9064a5b79180936 Mon Sep 17 00:00:00 2001
From: Bertrand Augereau
Date: Tue, 28 Jun 2011 14:54:26 +0200
Subject: DREAMWEB: walking blacklisted

---
 engines/dreamweb/dreamgen.cpp | 53 -------------------------------------------
 engines/dreamweb/dreamgen.h   |  3 +--
 engines/dreamweb/stubs.cpp    | 31 +++++++++++++++++++++++++
 engines/dreamweb/stubs.h      |  1 +
 4 files changed, 33 insertions(+), 55 deletions(-)

(limited to 'engines/dreamweb')

diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index ce978b223d..459be79cde 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -2385,58 +2385,6 @@ decdir:
 	es.byte(bx+29) = 0;
 }
 
-void DreamGenContext::walking() {
-	STACK_CHECK;
-	_cmp(data.byte(kLinedirection), 0);
-	if (flags.z())
-		goto normalwalk;
-	al = data.byte(kLinepointer);
-	_dec(al);
-	data.byte(kLinepointer) = al;
-	_cmp(al, 200);
-	if (!flags.c())
-		goto endofline;
-	goto continuewalk;
-normalwalk:
-	al = data.byte(kLinepointer);
-	_inc(al);
-	data.byte(kLinepointer) = al;
-	_cmp(al, data.byte(kLinelength));
-	if (!flags.c())
-		goto endofline;
-continuewalk:
-	ah = 0;
-	_add(ax, ax);
-	push(es);
-	push(bx);
-	dx = data;
-	es = dx;
-	bx = 8173;
-	_add(bx, ax);
-	ax = es.word(bx);
-	bx = pop();
-	es = pop();
-	es.word(bx+10) = ax;
-	return;
-endofline:
-	data.byte(kLinepointer) = 254;
-	al = data.byte(kDestination);
-	data.byte(kManspath) = al;
-	_cmp(al, data.byte(kFinaldest));
-	if (flags.z())
-		goto finishedwalk;
-	al = data.byte(kFinaldest);
-	data.byte(kDestination) = al;
-	push(es);
-	push(bx);
-	autosetwalk();
-	bx = pop();
-	es = pop();
-	return;
-finishedwalk:
-	facerightway();
-}
-
 void DreamGenContext::facerightway() {
 	STACK_CHECK;
 	push(es);
@@ -21582,7 +21530,6 @@ void DreamGenContext::__dispatch_call(uint16 addr) {
 		case addr_initman: initman(); break;
 		case addr_mainman: mainman(); break;
 		case addr_aboutturn: aboutturn(); break;
-		case addr_walking: walking(); break;
 		case addr_facerightway: facerightway(); break;
 		case addr_checkforexit: checkforexit(); break;
 		case addr_adjustdown: adjustdown(); break;
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index d924c62c3c..41154a4353 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -665,7 +665,6 @@ public:
 	static const uint16 addr_adjustdown = 0xc14c;
 	static const uint16 addr_checkforexit = 0xc148;
 	static const uint16 addr_facerightway = 0xc144;
-	static const uint16 addr_walking = 0xc140;
 	static const uint16 addr_aboutturn = 0xc13c;
 	static const uint16 addr_mainman = 0xc138;
 	static const uint16 addr_initman = 0xc134;
@@ -1671,7 +1670,7 @@ public:
 	void zoom();
 	void outofinv();
 	void viewfolder();
-	void walking();
+	//void walking();
 	void diarykeyp();
 	//void readabyte();
 	//void showframe();
diff --git a/engines/dreamweb/stubs.cpp b/engines/dreamweb/stubs.cpp
index c643e8abb0..afbf65aafe 100644
--- a/engines/dreamweb/stubs.cpp
+++ b/engines/dreamweb/stubs.cpp
@@ -842,6 +842,37 @@ void DreamGenContext::mainmanCPP(Sprite* sprite) {
 	es = pop();
 }
 
+void DreamGenContext::walking() {
+	Sprite *sprite = (Sprite*)es.ptr(bx, sizeof(Sprite));
+
+	uint8 comp;
+	if (data.byte(kLinedirection) != 0) {
+		--data.byte(kLinepointer);
+		comp = 200;
+	} else {
+		++data.byte(kLinepointer);
+		comp = data.byte(kLinelength);
+	}
+	if (data.byte(kLinepointer) < comp) {
+		sprite->x = data.byte(kLinedata + data.byte(kLinepointer) * 2 + 0);
+		sprite->y = data.byte(kLinedata + data.byte(kLinepointer) * 2 + 1);
+		return;
+	}
+
+	data.byte(kLinepointer) = 254;
+	data.byte(kManspath) = data.byte(kDestination);
+	if (data.byte(kDestination) == data.byte(kFinaldest)) {
+		facerightway();
+		return;
+	}
+	data.byte(kDestination) = data.byte(kFinaldest);
+	push(es);
+	push(bx);
+	autosetwalk();
+	bx = pop();
+	es = pop();
+}
+
 void DreamGenContext::backobject(Sprite* sprite) {
 	push(es);
 	push(ds);
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 461cef7419..fb38a1d5b1 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -26,6 +26,7 @@
 	Sprite* makesprite(uint8 x, uint8 y, uint16 updateCallback, uint16 somethingInDx, uint16 somethingInDi);
 	void spriteupdate();
 	void mainmanCPP(Sprite* sprite);
+	void walking();
 	void backobject(Sprite* sprite);
 	void constant(Sprite* sprite, ObjData* objData);
 	void steady(Sprite* sprite, ObjData* objData);
-- 
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