ILLUSIONS: DUCKMAN: Move game credits into own file and class

6 files changed, 270 insertions, 168 deletions

diff --git a/engines/illusions/duckman/duckman_credits.cpp b/engines/illusions/duckman/duckman_credits.cpp
new file mode 100644
index 0000000000..18a0482ae4
--- /dev/null
+++ b/engines/illusions/duckman/duckman_credits.cpp
@@ -0,0 +1,198 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *                                                                                                                                  
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "illusions/duckman/illusions_duckman.h"
+#include "illusions/duckman/duckman_credits.h"
+#include "illusions/actor.h"
+#include "illusions/dictionary.h"
+#include "illusions/resources/fontresource.h"
+#include "illusions/resources/scriptresource.h"
+#include "illusions/textdrawer.h"
+#include "illusions/time.h"
+#include "illusions/updatefunctions.h"
+
+#include "engines/util.h"
+
+namespace Illusions {
+
+// Duckman_SpecialCode
+
+DuckmanCredits::DuckmanCredits(IllusionsEngine_Duckman *vm)
+	: _vm(vm) {
+
+}
+
+DuckmanCredits::~DuckmanCredits() {
+}
+
+void DuckmanCredits::start() {
+	static const struct { uint32 objectId; int scrollPosY; } kCreditsItems[] = {
+		{0x40136,   0}, {0x40137,  16}, {0x40138,  32}, {0x40139,  48},
+		{0x4013A,  64}, {0x4013B,  80}, {0x4013C,  96}, {0x4013D, 112}
+	};
+	_currText = (char*)_vm->_resSys->getResource(0x190052)->_data;
+	_creditsItems.clear();
+	for (uint i = 0; i < ARRAYSIZE(kCreditsItems);  ++i) {
+		CreditsItem creditsItem;
+		creditsItem.objectId = kCreditsItems[i].objectId;
+		creditsItem.scrollPosY = kCreditsItems[i].scrollPosY;
+		creditsItem.scrollPosIndex = 0;
+		creditsItem.active = false;
+		_creditsItems.push_back(creditsItem);
+	}
+	uint32 currSceneId = _vm->getCurrentScene();
+	_vm->_updateFunctions->add(0, currSceneId, new Common::Functor1Mem<uint, int, DuckmanCredits>(this, &DuckmanCredits::update));
+	_nextUpdateTicks = getCurrentTime();
+	_lastUpdateTicks = _nextUpdateTicks - 4;
+}
+
+int DuckmanCredits::update(uint flags) {
+
+	if (_vm->_pauseCtr > 0) {
+		_nextUpdateTicks = getCurrentTime() + 4;
+		return 1;
+	}
+
+	if (flags & 1) {
+		_vm->_scriptResource->_properties.set(0x000E0096, true);
+		_lastItemIndex = -1;
+		_endReached = false;
+		return 2;
+	}
+
+	if (!isTimerExpired(_lastUpdateTicks, _nextUpdateTicks)) {
+		return 1;
+	}
+
+	bool creditsRunning = false;
+	int index = 0;
+	for (CreditsItems::iterator it = _creditsItems.begin(); it != _creditsItems.end(); ++it, ++index) {
+		CreditsItem &creditsItem = *it;
+		Control *control = _vm->getObjectControl(creditsItem.objectId);
+		if (!creditsItem.active && creditsItem.scrollPosY == 0 && !_endReached) {
+			creditsItem.active = true;
+			creditsItem.scrollPosIndex = 0;
+			control->fillActor(0);
+			char *text = readNextLine();
+			if (!strncmp(text, "&&&END", 6)) {
+				creditsItem.active = false;
+				_endReached = true;
+			} else {
+				uint16 wtext[128];
+				charToWChar(text, wtext, ARRAYSIZE(wtext));
+
+				FontResource *font = _vm->_dict->findFont(0x120001); 
+				TextDrawer textDrawer;
+				WidthHeight dimensions;
+				uint16 *outText;
+				control->getActorFrameDimensions(dimensions);
+				textDrawer.wrapText(font, wtext, &dimensions, Common::Point(0, 0), 2, outText);
+				textDrawer.drawText(_vm->_screen, control->_actor->_surface, 0, 0);
+				control->_actor->_flags |= 0x4000;
+
+				_lastItemIndex = index;
+			}
+		}
+		if (creditsItem.active) {
+			if (_endReached && _creditsItems[_lastItemIndex].scrollPosIndex > 53) {
+				creditsItem.active = false;
+				creditsItem.scrollPosY = -1;
+			} else {
+				creditsRunning = true;
+				control->_actor->_position = getItemPosition(creditsItem.scrollPosIndex);
+				++creditsItem.scrollPosIndex;
+				if (getItemPosition(creditsItem.scrollPosIndex).x < 0)
+					creditsItem.active = false;
+			}
+		}
+		if (creditsItem.scrollPosY > 0)
+			--creditsItem.scrollPosY;
+	}
+	_lastUpdateTicks = _nextUpdateTicks;
+	_nextUpdateTicks = getCurrentTime() + 4;
+
+	if (!creditsRunning) {
+		_vm->_scriptResource->_properties.set(0x000E0096, true);
+		_lastItemIndex = -1;
+		_endReached = false;
+		return 2;
+	}
+
+	return 1;
+}
+
+char *DuckmanCredits::readNextLine() {
+	static char line[256];
+	char *dest = line;
+	char *src = _currText;
+	do {
+		if (*src == 10 || *src == 13) {
+			src += 2;
+			*dest = 0;
+			break;
+		}
+		*dest++ = *src++;
+	} while (1);
+	_currText = src;
+	return line;
+}
+
+Common::Point DuckmanCredits::getItemPosition(int index) {
+	static const struct { int16 x, y; } kCreditsItemsPoints[] = {
+		{159, 200}, {158, 195}, {157, 190}, {156, 185}, {156, 180}, {157, 176}, 
+		{158, 172}, {159, 168}, {161, 164}, {162, 161}, {163, 158}, {163, 155}, 
+		{162, 152}, {161, 149}, {159, 147}, {158, 144}, {157, 142}, {156, 140}, 
+		{156, 138}, {157, 136}, {158, 134}, {159, 132}, {161, 130}, {162, 128}, 
+		{163, 127}, {163, 126}, {162, 125}, {161, 124}, {159, 123}, {158, 122}, 
+		{157, 121}, {156, 120}, {156, 119}, {157, 118}, {158, 117}, {159, 116}, 
+		{161, 115}, {162, 114}, {163, 113}, {163, 112}, {162, 111}, {161, 110}, 
+		{159, 109}, {158, 108}, {157, 107}, {156, 106}, {156, 105}, {157, 104}, 
+		{158, 103}, {159, 102}, {161, 101}, {162, 100}, {163,  99}, {163,  98}, 
+		{162,  97}, {161,  96}, {159,  95}, {158,  94}, {157,  93}, {156,  92}, 
+		{156,  91}, {157,  90}, {158,  89}, {159,  88}, {161,  87}, {162,  86}, 
+		{163,  85}, {163,  84}, {162,  83}, {161,  82}, {159,  81}, {158,  80}, 
+		{157,  79}, {156,  78}, {156,  77}, {157,  76}, {158,  75}, {159,  74},
+		{161,  73}, {162,  72}, {163,  71}, {163,  70}, {162,  69}, {161,  68}, 
+		{159,  67}, {158,  66}, {157,  64}, {156,  62}, {156,  60}, {157,  58}, 
+		{158,  56}, {159,  54}, {161,  52}, {162,  50}, {163,  40}, {163,  40}, 
+		{162,  40}, {161,  40}, {159,  40}, {158,  40}, {157,  40}, {156,  40}, 
+		{156,  40}, {157,  40}, {158,  40}, {159,  40}, {161,  40}, {162,  40}, 
+		{163,  40}, {163,  40}, {162,  40}, {161,  40}, {159,  40}, {158,  40}, 
+		{157,  40}, {156,  40}, {156,  40}, {157,  40}, {158,  40}, {159,  40}, 
+		{161,  40}, {162,  40}, {163,  40}, {163,  40}, {162,  40}, {161,  40}, 
+		{159,  40}, {158,  40}, { -1,  -1} 
+	};
+
+	if (index < 0 || index >= ARRAYSIZE(kCreditsItemsPoints))
+		return Common::Point(-1, -1);
+	return Common::Point(kCreditsItemsPoints[index].x, kCreditsItemsPoints[index].y);
+}
+
+void DuckmanCredits::charToWChar(char *text, uint16 *wtext, uint size) {
+	while (*text != 0 && size > 1) {
+		*wtext++ = (byte)*text++;
+		--size;
+	}
+	*wtext++ = 0;
+}
+
+} // End of namespace Illusions
diff --git a/engines/illusions/duckman/duckman_credits.h b/engines/illusions/duckman/duckman_credits.h
new file mode 100644
index 0000000000..039575ced5
--- /dev/null
+++ b/engines/illusions/duckman/duckman_credits.h
@@ -0,0 +1,62 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef ILLUSIONS_DUCKMAN_CREDITS_H
+#define ILLUSIONS_DUCKMAN_CREDITS_H
+
+#include "illusions/illusions.h"
+
+namespace Illusions {
+
+class IllusionsEngine_Duckman;
+
+struct CreditsItem {
+	uint32 objectId;
+	bool active;
+	int16 scrollPosIndex;
+	int16 scrollPosY;
+};
+
+class DuckmanCredits {
+public:
+	DuckmanCredits(IllusionsEngine_Duckman *vm);
+	~DuckmanCredits();
+	void start();
+public:	
+	typedef Common::Array<CreditsItem> CreditsItems;
+	IllusionsEngine_Duckman *_vm;
+	uint32 _lastUpdateTicks;
+	uint32 _nextUpdateTicks;
+	int _lastItemIndex;
+	bool _endReached;
+	CreditsItems _creditsItems;
+	char *_currText;
+	int update(uint flags);
+	char *readNextLine();
+	Common::Point getItemPosition(int index);
+	void charToWChar(char *text, uint16 *wtext, uint size);
+
+};
+
+} // End of namespace Illusions
+
+#endif // ILLUSIONS_ILLUSIONS_H
diff --git a/engines/illusions/duckman/duckman_specialcode.cpp b/engines/illusions/duckman/duckman_specialcode.cpp
index f0c3698520..d53896d6ac 100644
--- a/engines/illusions/duckman/duckman_specialcode.cpp
+++ b/engines/illusions/duckman/duckman_specialcode.cpp
@@ -21,6 +21,7 @@
  */
 
 #include "illusions/duckman/illusions_duckman.h"
+#include "illusions/duckman/duckman_credits.h"
 #include "illusions/duckman/duckman_screenshakereffects.h"
 #include "illusions/duckman/duckman_specialcode.h"
 #include "illusions/duckman/duckman_inventory.h"
@@ -47,6 +48,8 @@ DuckmanSpecialCode::DuckmanSpecialCode(IllusionsEngine_Duckman *vm)
 
 	_propertyTimers = new PropertyTimers(_vm);
 	_inventory = new DuckmanInventory(_vm);
+	_credits = new DuckmanCredits(_vm);
+	
 	_wasCursorHoldingElvisPoster = false;
 	_counter = 0;
 	_savedTempMasterSfxVolume = 16;
@@ -56,6 +59,7 @@ DuckmanSpecialCode::DuckmanSpecialCode(IllusionsEngine_Duckman *vm)
 DuckmanSpecialCode::~DuckmanSpecialCode() {
 	delete _propertyTimers;
 	delete _inventory;
+	delete _credits;
 }
 
 typedef Common::Functor1Mem<OpCall&, void, DuckmanSpecialCode> SpecialCodeFunctionDM;
@@ -339,7 +343,7 @@ void DuckmanSpecialCode::spcHoldGlowingElvisPoster(OpCall &opCall) {
 void DuckmanSpecialCode::spcStartCredits(OpCall &opCall) {
 	ARG_BYTE(mode);
 	if (mode == 0)
-		startCredits();
+		_credits->start();
 	_vm->notifyThreadId(opCall._threadId);
 }
 
@@ -391,155 +395,4 @@ void DuckmanSpecialCode::updateTeleporterProperties() {
 	_vm->_scriptResource->_properties.set(0x000E0078, _teleporterPosition.x == 1 && _teleporterPosition.y == 1);	
 }
 
-void DuckmanSpecialCode::startCredits() {
-	static const struct { uint32 objectId; int scrollPosY; } kCreditsItems[] = {
-		{0x40136,   0}, {0x40137,  16}, {0x40138,  32}, {0x40139,  48},
-		{0x4013A,  64}, {0x4013B,  80}, {0x4013C,  96}, {0x4013D, 112}
-	};
-	_creditsCurrText = (char*)_vm->_resSys->getResource(0x190052)->_data;
-	_creditsItems.clear();
-	for (uint i = 0; i < ARRAYSIZE(kCreditsItems);  ++i) {
-		CreditsItem creditsItem;
-		creditsItem.objectId = kCreditsItems[i].objectId;
-		creditsItem.scrollPosY = kCreditsItems[i].scrollPosY;
-		creditsItem.scrollPosIndex = 0;
-		creditsItem.active = false;
-		_creditsItems.push_back(creditsItem);
-	}
-	uint32 currSceneId = _vm->getCurrentScene();
-	_vm->_updateFunctions->add(0, currSceneId, new Common::Functor1Mem<uint, int, DuckmanSpecialCode>(this, &DuckmanSpecialCode::updateCredits));
-	_creditsNextUpdateTicks = getCurrentTime();
-	_creditsLastUpdateTicks = _creditsNextUpdateTicks - 4;
-}
-
-int DuckmanSpecialCode::updateCredits(uint flags) {
-
-	if (_vm->_pauseCtr > 0) {
-		_creditsNextUpdateTicks = getCurrentTime() + 4;
-		return 1;
-	}
-
-	if (flags & 1) {
-		_vm->_scriptResource->_properties.set(0x000E0096, true);
-		_lastCreditsItemIndex = -1;
-		_creditsEndReached = false;
-		return 2;
-	}
-
-	if (!isTimerExpired(_creditsLastUpdateTicks, _creditsNextUpdateTicks)) {
-		return 1;
-	}
-
-	bool creditsRunning = false;
-	int index = 0;
-	for (CreditsItems::iterator it = _creditsItems.begin(); it != _creditsItems.end(); ++it, ++index) {
-		CreditsItem &creditsItem = *it;
-		Control *control = _vm->getObjectControl(creditsItem.objectId);
-		if (!creditsItem.active && creditsItem.scrollPosY == 0 && !_creditsEndReached) {
-			creditsItem.active = true;
-			creditsItem.scrollPosIndex = 0;
-			control->fillActor(0);
-			char *text = readNextCreditsLine();
-			if (!strncmp(text, "&&&END", 6)) {
-				creditsItem.active = false;
-				_creditsEndReached = true;
-			} else {
-				uint16 wtext[128];
-				charToWChar(text, wtext, ARRAYSIZE(wtext));
-
-				FontResource *font = _vm->_dict->findFont(0x120001); 
-				TextDrawer textDrawer;
-				WidthHeight dimensions;
-				uint16 *outText;
-				control->getActorFrameDimensions(dimensions);
-				textDrawer.wrapText(font, wtext, &dimensions, Common::Point(0, 0), 2, outText);
-				textDrawer.drawText(_vm->_screen, control->_actor->_surface, 0, 0);
-				control->_actor->_flags |= 0x4000;
-
-				_lastCreditsItemIndex = index;
-			}
-		}
-		if (creditsItem.active) {
-			if (_creditsEndReached && _creditsItems[_lastCreditsItemIndex].scrollPosIndex > 53) {
-				creditsItem.active = false;
-				creditsItem.scrollPosY = -1;
-			} else {
-				creditsRunning = true;
-				control->_actor->_position = getCreditsItemPosition(creditsItem.scrollPosIndex);
-				++creditsItem.scrollPosIndex;
-				if (getCreditsItemPosition(creditsItem.scrollPosIndex).x < 0)
-					creditsItem.active = false;
-			}
-		}
-		if (creditsItem.scrollPosY > 0)
-			--creditsItem.scrollPosY;
-	}
-	_creditsLastUpdateTicks = _creditsNextUpdateTicks;
-	_creditsNextUpdateTicks = getCurrentTime() + 4;
-
-	if (!creditsRunning) {
-		_vm->_scriptResource->_properties.set(0x000E0096, true);
-		_lastCreditsItemIndex = -1;
-		_creditsEndReached = false;
-		return 2;
-	}
-
-	return 1;
-}
-
-char *DuckmanSpecialCode::readNextCreditsLine() {
-	static char line[256];
-	char *dest = line;
-	char *src = _creditsCurrText;
-	do {
-		if (*src == 10 || *src == 13) {
-			src += 2;
-			*dest = 0;
-			break;
-		}
-		*dest++ = *src++;
-	} while (1);
-	_creditsCurrText = src;
-	return line;
-}
-
-Common::Point DuckmanSpecialCode::getCreditsItemPosition(int index) {
-	static const struct { int16 x, y; } kCreditsItemsPoints[] = {
-		{159, 200}, {158, 195}, {157, 190}, {156, 185}, {156, 180}, {157, 176}, 
-		{158, 172}, {159, 168}, {161, 164}, {162, 161}, {163, 158}, {163, 155}, 
-		{162, 152}, {161, 149}, {159, 147}, {158, 144}, {157, 142}, {156, 140}, 
-		{156, 138}, {157, 136}, {158, 134}, {159, 132}, {161, 130}, {162, 128}, 
-		{163, 127}, {163, 126}, {162, 125}, {161, 124}, {159, 123}, {158, 122}, 
-		{157, 121}, {156, 120}, {156, 119}, {157, 118}, {158, 117}, {159, 116}, 
-		{161, 115}, {162, 114}, {163, 113}, {163, 112}, {162, 111}, {161, 110}, 
-		{159, 109}, {158, 108}, {157, 107}, {156, 106}, {156, 105}, {157, 104}, 
-		{158, 103}, {159, 102}, {161, 101}, {162, 100}, {163,  99}, {163,  98}, 
-		{162,  97}, {161,  96}, {159,  95}, {158,  94}, {157,  93}, {156,  92}, 
-		{156,  91}, {157,  90}, {158,  89}, {159,  88}, {161,  87}, {162,  86}, 
-		{163,  85}, {163,  84}, {162,  83}, {161,  82}, {159,  81}, {158,  80}, 
-		{157,  79}, {156,  78}, {156,  77}, {157,  76}, {158,  75}, {159,  74},
-		{161,  73}, {162,  72}, {163,  71}, {163,  70}, {162,  69}, {161,  68}, 
-		{159,  67}, {158,  66}, {157,  64}, {156,  62}, {156,  60}, {157,  58}, 
-		{158,  56}, {159,  54}, {161,  52}, {162,  50}, {163,  40}, {163,  40}, 
-		{162,  40}, {161,  40}, {159,  40}, {158,  40}, {157,  40}, {156,  40}, 
-		{156,  40}, {157,  40}, {158,  40}, {159,  40}, {161,  40}, {162,  40}, 
-		{163,  40}, {163,  40}, {162,  40}, {161,  40}, {159,  40}, {158,  40}, 
-		{157,  40}, {156,  40}, {156,  40}, {157,  40}, {158,  40}, {159,  40}, 
-		{161,  40}, {162,  40}, {163,  40}, {163,  40}, {162,  40}, {161,  40}, 
-		{159,  40}, {158,  40}, { -1,  -1} 
-	};
-
-	if (index < 0 || index >= ARRAYSIZE(kCreditsItemsPoints))
-		return Common::Point(-1, -1);
-	return Common::Point(kCreditsItemsPoints[index].x, kCreditsItemsPoints[index].y);
-}
-
-void DuckmanSpecialCode::charToWChar(char *text, uint16 *wtext, uint size) {
-	while (*text != 0 && size > 1) {
-		*wtext++ = (byte)*text++;
-		--size;
-	}
-	*wtext++ = 0;
-}
-
 } // End of namespace Illusions
diff --git a/engines/illusions/duckman/duckman_specialcode.h b/engines/illusions/duckman/duckman_specialcode.h
index 9176a643b0..a9fb7b9803 100644
--- a/engines/illusions/duckman/duckman_specialcode.h
+++ b/engines/illusions/duckman/duckman_specialcode.h
@@ -30,18 +30,12 @@
 namespace Illusions {
 
 class IllusionsEngine_Duckman;
+class DuckmanCredits;
 class DuckmanInventory;
 class PropertyTimers;
 
 typedef Common::Functor1<OpCall&, void> SpecialCodeFunction;
 
-struct CreditsItem {
-	uint32 objectId;
-	bool active;
-	int16 scrollPosIndex;
-	int16 scrollPosY;
-};
-
 class DuckmanSpecialCode : public SpecialCode {
 public:
 	DuckmanSpecialCode(IllusionsEngine_Duckman *vm);
@@ -51,7 +45,6 @@ public:
 public:	
 	typedef Common::HashMap<uint32, SpecialCodeFunction*> SpecialCodeMap;
 	typedef SpecialCodeMap::iterator SpecialCodeMapIterator;
-	typedef Common::Array<CreditsItem> CreditsItems;
 
 	IllusionsEngine_Duckman *_vm;
 	SpecialCodeMap _specialCodeMap;
@@ -67,12 +60,7 @@ public:
 	int16 _savedTempMasterSfxVolume;
 	int16 _lastRandomSoundIndex;
 
-	uint32 _creditsLastUpdateTicks;
-	uint32 _creditsNextUpdateTicks;
-	int _lastCreditsItemIndex;
-	bool _creditsEndReached;
-	CreditsItems _creditsItems;
-	char *_creditsCurrText;
+	DuckmanCredits *_credits;
 
 	// Special code interface functions
 	void runSpecialCode(uint32 specialCodeId, OpCall &opCall);
diff --git a/engines/illusions/duckman/scriptopcodes_duckman.cpp b/engines/illusions/duckman/scriptopcodes_duckman.cpp
index 759b4bc606..251800268c 100644
--- a/engines/illusions/duckman/scriptopcodes_duckman.cpp
+++ b/engines/illusions/duckman/scriptopcodes_duckman.cpp
@@ -259,7 +259,7 @@ void ScriptOpcodes_Duckman::opUnloadResourcesBySceneId(ScriptThread *scriptThrea
 
 //static uint dsceneId = 0, dthreadId = 0;
 //static uint dsceneId = 0x00010008, dthreadId = 0x00020029;//Beginning in Jac
-static uint dsceneId = 0x0001000A, dthreadId = 0x00020043;//Home front
+//static uint dsceneId = 0x0001000A, dthreadId = 0x00020043;//Home front
 //static uint dsceneId = 0x0001000E, dthreadId = 0x0002007C;
 //static uint dsceneId = 0x00010012, dthreadId = 0x0002009D;//Paramount
 //static uint dsceneId = 0x00010020, dthreadId = 0x00020112;//Xmas
@@ -276,7 +276,7 @@ static uint dsceneId = 0x0001000A, dthreadId = 0x00020043;//Home front
 //static uint dsceneId = 0x10002, dthreadId = 0x20001;//Debug menu, not supported
 //static uint dsceneId = 0x10044, dthreadId = 0x000202B8; // Starship Enterprise
 //static uint dsceneId = 0x00010039, dthreadId = 0x00020089; // Map
-//static uint dsceneId = 0x00010052, dthreadId = 0x00020347; // Credits
+static uint dsceneId = 0x00010052, dthreadId = 0x00020347; // Credits
 
 void ScriptOpcodes_Duckman::opChangeScene(ScriptThread *scriptThread, OpCall &opCall) {
 	ARG_SKIP(2);
diff --git a/engines/illusions/module.mk b/engines/illusions/module.mk
index 82116960ca..1f164cdff9 100644
--- a/engines/illusions/module.mk
+++ b/engines/illusions/module.mk
@@ -16,6 +16,7 @@ MODULE_OBJS := \
 	cursor.o \
 	detection.o \
 	dictionary.o \
+	duckman/duckman_credits.o \
 	duckman/duckman_dialog.o \
 	duckman/duckman_inventory.o \
 	duckman/duckman_screenshakereffects.o \