From fe73a2407820000d0321173a50e0d98dbcfc213f Mon Sep 17 00:00:00 2001
From: Bertrand Augereau <bertrand_augereau@yahoo.fr>
Date: Wed, 27 Jul 2011 17:53:50 +0200
Subject: [PATCH] DREAMWEB: 'makebackob' ported

---
 devtools/tasmrecover/tasm-recover |  1 +
 engines/dreamweb/dreamgen.cpp     | 35 -------------------------------
 engines/dreamweb/dreamgen.h       |  3 +--
 engines/dreamweb/structs.h        |  3 ++-
 engines/dreamweb/stubs.cpp        | 23 ++++++++++++++++++++
 engines/dreamweb/stubs.h          |  1 +
 6 files changed, 28 insertions(+), 38 deletions(-)

diff --git a/devtools/tasmrecover/tasm-recover b/devtools/tasmrecover/tasm-recover
index e0b0e213941..f550cb0826d 100755
--- a/devtools/tasmrecover/tasm-recover
+++ b/devtools/tasmrecover/tasm-recover
@@ -75,6 +75,7 @@ generator = cpp(context, "DreamGen", blacklist = [
 	'cancelch0',
 	'cancelch1',
 	'getroomspaths',
+	'makebackob',
 	'facerightway',
 	])
 generator.generate('dreamweb') #start routine
diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index 182a4411ddb..9fa7f169959 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -7476,40 +7476,6 @@ blankframe:
 	goto showobsloop;
 }
 
-void DreamGenContext::makebackob() {
-	STACK_CHECK;
-	_cmp(data.byte(kNewobs), 0);
-	if (flags.z())
-		return /* (nomake) */;
-	al = es.byte(si+5);
-	ah = es.byte(si+8);
-	push(si);
-	push(ax);
-	push(si);
-	ax = data.word(kObjectx);
-	bx = data.word(kObjecty);
-	ah = bl;
-	si = ax;
-	cx = 49520;
-	dx = data.word(kSetframes);
-	di = (0);
-	makesprite();
-	ax = pop();
-	es.word(bx+20) = ax;
-	ax = pop();
-	_cmp(al, 255);
-	if (!flags.z())
-		goto usedpriority;
-	al = 0;
-usedpriority:
-	es.byte(bx+23) = al;
-	es.byte(bx+30) = ah;
-	es.byte(bx+16) = 0;
-	es.byte(bx+18) = 0;
-	es.byte(bx+19) = 0;
-	si = pop();
-}
-
 void DreamGenContext::showallfree() {
 	STACK_CHECK;
 	es = data.word(kBuffers);
@@ -21046,7 +21012,6 @@ void DreamGenContext::__dispatch_call(uint16 addr) {
 		case addr_addlength: addlength(); break;
 		case addr_drawflags: drawflags(); break;
 		case addr_showallobs: showallobs(); break;
-		case addr_makebackob: makebackob(); break;
 		case addr_showallfree: showallfree(); break;
 		case addr_showallex: showallex(); break;
 		case addr_calcfrframe: calcfrframe(); break;
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index 130e0f0b5be..2b7149621b7 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -505,7 +505,6 @@ public:
 	static const uint16 addr_calcfrframe = 0xc454;
 	static const uint16 addr_showallex = 0xc450;
 	static const uint16 addr_showallfree = 0xc44c;
-	static const uint16 addr_makebackob = 0xc448;
 	static const uint16 addr_showallobs = 0xc444;
 	static const uint16 addr_drawflags = 0xc43c;
 	static const uint16 addr_addlength = 0xc438;
@@ -1559,7 +1558,7 @@ public:
 	void discops();
 	//void printdirect();
 	void delthisone();
-	void makebackob();
+	//void makebackob();
 	void middlepanel();
 	void dumpwatch();
 	void saveload();
diff --git a/engines/dreamweb/structs.h b/engines/dreamweb/structs.h
index e274375cf46..ac304ae2c24 100644
--- a/engines/dreamweb/structs.h
+++ b/engines/dreamweb/structs.h
@@ -31,7 +31,8 @@ struct Sprite {
 	uint16 w12;
 	uint8  b14;
 	uint8  b15;
-	uint16 w16;
+	uint8  b16;
+	uint8  b17;
 	uint8  delay;
 	uint8  frame;
 	uint16 obj_data;
diff --git a/engines/dreamweb/stubs.cpp b/engines/dreamweb/stubs.cpp
index 140e278d1dd..8c278b5990c 100644
--- a/engines/dreamweb/stubs.cpp
+++ b/engines/dreamweb/stubs.cpp
@@ -825,5 +825,28 @@ uint8 *DreamGenContext::getroomspathsCPP() {
 	return (uint8 *)result;
 }
 
+void DreamGenContext::makebackob() {
+	if (data.byte(kNewobs) == 0)
+		return;
+	uint8 priority = es.byte(si+5);
+	uint8 type = es.byte(si+8);
+	Sprite *sprite = makesprite(data.word(kObjectx), data.word(kObjecty), addr_backobject, data.word(kSetframes), 0);
+
+	// Recover es:bx from sprite
+	es = data.word(kBuffers);
+	bx = kSpritetable;
+	Sprite *sprites = (Sprite *)es.ptr(bx, sizeof(Sprite) * 16);
+	bx += sizeof(Sprite) * (sprite - sprites);
+	//
+	WRITE_LE_UINT16(&sprite->obj_data, si);
+	if (priority == 255)
+		priority = 0;
+	sprite->priority = priority;
+	sprite->type = type;
+	sprite->b16 = 0;
+	sprite->delay = 0;
+	sprite->frame = 0;
+}
+
 } /*namespace dreamgen */
 
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 559c95625db..e72229639be 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -90,6 +90,7 @@
 	void turnpathoffCPP(uint8 param);
 	void getroomspaths();
 	uint8 *getroomspathsCPP();
+	void makebackob();
 	void modifychar();
 	void lockmon();
 	void cancelch0();