[Scummvm-git-logs] scummvm master -> 133a2dc9b6baee91a5c45e74f41f7ebd6303567c

neuromancer noreply at scummvm.org
Thu May 9 06:31:16 UTC 2024


This automated email contains information about 4 new commits which have been
pushed to the 'scummvm' repo located at https://github.com/scummvm/scummvm .

Summary:
9646dd5638 FREESCAPE: improved rendering of floors
aac1e51e5b FREESCAPE: improved rendering of planar over planar
ebc0c06096 FREESCAPE: only add a floor if needed
133a2dc9b6 FREESCAPE: file structure for castle


Commit: 9646dd563800d35d625f4e589260846326d229ff
    https://github.com/scummvm/scummvm/commit/9646dd563800d35d625f4e589260846326d229ff
Author: neuromancer (gustavo.grieco at gmail.com)
Date: 2024-05-09T08:31:57+02:00

Commit Message:
FREESCAPE: improved rendering of floors

Changed paths:
    engines/freescape/area.cpp
    engines/freescape/gfx.h
    engines/freescape/gfx_opengl.cpp
    engines/freescape/gfx_opengl.h
    engines/freescape/gfx_opengl_shaders.cpp
    engines/freescape/gfx_opengl_shaders.h
    engines/freescape/gfx_tinygl.cpp
    engines/freescape/gfx_tinygl.h


diff --git a/engines/freescape/area.cpp b/engines/freescape/area.cpp
index 364523534d0..71e80c43c63 100644
--- a/engines/freescape/area.cpp
+++ b/engines/freescape/area.cpp
@@ -227,9 +227,15 @@ void Area::draw(Freescape::Renderer *gfx, uint32 animationTicks, Math::Vector3d
 	assert(_drawableObjects.size() > 0);
 	ObjectArray planarObjects;
 	ObjectArray nonPlanarObjects;
+	Object *floor = nullptr;
 
 	for (auto &obj : _drawableObjects) {
 		if (!obj->isDestroyed() && !obj->isInvisible()) {
+			if (obj->getObjectID() == 0 && _groundColor < 255 && _skyColor < 255) {
+				floor = obj;
+				continue;
+			}
+
 			if (obj->getType() == ObjectType::kGroupType) {
 				drawGroup(gfx, (Group *)obj, runAnimation);
 				continue;
@@ -242,6 +248,12 @@ void Area::draw(Freescape::Renderer *gfx, uint32 animationTicks, Math::Vector3d
 		}
 	}
 
+	if (floor) {
+		gfx->depthTesting(false);
+		floor->draw(gfx);
+		gfx->depthTesting(true);
+	}
+
 	Common::HashMap<Object *, float> offsetMap;
 	for (auto &planar : planarObjects)
 		offsetMap[planar] = 0;
@@ -472,7 +484,7 @@ void Area::addFloor() {
 		id,
 		0,                                           // flags
 		Math::Vector3d(-maxSize, -3, -maxSize),      // Position
-		Math::Vector3d(maxSize * 4, 1, maxSize * 4), // size
+		Math::Vector3d(maxSize * 4, 3, maxSize * 4), // size
 		gColors,
 		nullptr,
 		nullptr,
diff --git a/engines/freescape/gfx.h b/engines/freescape/gfx.h
index 40b6bc9d008..297c2e9fd89 100644
--- a/engines/freescape/gfx.h
+++ b/engines/freescape/gfx.h
@@ -74,6 +74,7 @@ public:
 	 */
 	virtual void flipBuffer() {}
 	virtual void useColor(uint8 r, uint8 g, uint8 b) = 0;
+	virtual void depthTesting(bool enabled) {};
 	virtual void polygonOffset(bool enabled) = 0;
 
 	virtual Texture *createTexture(const Graphics::Surface *surface) = 0;
diff --git a/engines/freescape/gfx_opengl.cpp b/engines/freescape/gfx_opengl.cpp
index d004f5f7ef6..68bd519273c 100644
--- a/engines/freescape/gfx_opengl.cpp
+++ b/engines/freescape/gfx_opengl.cpp
@@ -435,6 +435,14 @@ void OpenGLRenderer::renderFace(const Common::Array<Math::Vector3d> &vertices) {
 	glDisableClientState(GL_VERTEX_ARRAY);
 }
 
+void OpenGLRenderer::depthTesting(bool enabled) {
+	if (enabled) {
+		glEnable(GL_DEPTH_TEST);
+	} else {
+		glDisable(GL_DEPTH_TEST);
+	}
+};
+
 void OpenGLRenderer::polygonOffset(bool enabled) {
 	if (enabled) {
 		glEnable(GL_POLYGON_OFFSET_FILL);
diff --git a/engines/freescape/gfx_opengl.h b/engines/freescape/gfx_opengl.h
index 6cdd5a10552..9ea1ddc5e29 100644
--- a/engines/freescape/gfx_opengl.h
+++ b/engines/freescape/gfx_opengl.h
@@ -94,6 +94,7 @@ public:
 	virtual void polygonOffset(bool enabled) override;
 	virtual void setStippleData(byte *data) override;
 	virtual void useStipple(bool enabled) override;
+	virtual void depthTesting(bool enabled) override;
 
 
 	Texture *createTexture(const Graphics::Surface *surface) override;
diff --git a/engines/freescape/gfx_opengl_shaders.cpp b/engines/freescape/gfx_opengl_shaders.cpp
index 142859a2754..39c27d5d305 100644
--- a/engines/freescape/gfx_opengl_shaders.cpp
+++ b/engines/freescape/gfx_opengl_shaders.cpp
@@ -434,6 +434,14 @@ void OpenGLShaderRenderer::renderFace(const Common::Array<Math::Vector3d> &verti
 	glDrawArrays(GL_TRIANGLES, 0, vi + 3);
 }
 
+void OpenGLShaderRenderer::depthTesting(bool enabled) {
+	if (enabled) {
+		glEnable(GL_DEPTH_TEST);
+	} else {
+		glDisable(GL_DEPTH_TEST);
+	}
+};
+
 void OpenGLShaderRenderer::polygonOffset(bool enabled) {
 	if (enabled) {
 		glEnable(GL_POLYGON_OFFSET_FILL);
diff --git a/engines/freescape/gfx_opengl_shaders.h b/engines/freescape/gfx_opengl_shaders.h
index 889fa7934ab..030ac6aa6fa 100644
--- a/engines/freescape/gfx_opengl_shaders.h
+++ b/engines/freescape/gfx_opengl_shaders.h
@@ -73,6 +73,8 @@ public:
 
 	virtual void useColor(uint8 r, uint8 g, uint8 b) override;
 	virtual void polygonOffset(bool enabled) override;
+	virtual void depthTesting(bool enabled) override;
+
 	virtual void setStippleData(byte *data) override;
 	virtual void useStipple(bool enabled) override;
 
diff --git a/engines/freescape/gfx_tinygl.cpp b/engines/freescape/gfx_tinygl.cpp
index 259c642c92f..28ebc619400 100644
--- a/engines/freescape/gfx_tinygl.cpp
+++ b/engines/freescape/gfx_tinygl.cpp
@@ -240,6 +240,14 @@ void TinyGLRenderer::renderFace(const Common::Array<Math::Vector3d> &vertices) {
 	tglDisableClientState(TGL_VERTEX_ARRAY);
 }
 
+void TinyGLRenderer::depthTesting(bool enabled) {
+	if (enabled) {
+		tglEnable(TGL_DEPTH_TEST);
+	} else {
+		tglDisable(TGL_DEPTH_TEST);
+	}
+};
+
 void TinyGLRenderer::polygonOffset(bool enabled) {
 	if (enabled) {
 		tglEnable(TGL_POLYGON_OFFSET_FILL);
diff --git a/engines/freescape/gfx_tinygl.h b/engines/freescape/gfx_tinygl.h
index ac7461091cb..f9e12a37f66 100644
--- a/engines/freescape/gfx_tinygl.h
+++ b/engines/freescape/gfx_tinygl.h
@@ -54,6 +54,7 @@ public:
 
 	virtual void useColor(uint8 r, uint8 g, uint8 b) override;
 	virtual void polygonOffset(bool enabled) override;
+	virtual void depthTesting(bool enabled) override;
 
 	Texture *createTexture(const Graphics::Surface *surface) override;
 	void freeTexture(Texture *texture) override;


Commit: aac1e51e5b204754cf0d401dea87084a454309b6
    https://github.com/scummvm/scummvm/commit/aac1e51e5b204754cf0d401dea87084a454309b6
Author: neuromancer (gustavo.grieco at gmail.com)
Date: 2024-05-09T08:31:57+02:00

Commit Message:
FREESCAPE: improved rendering of planar over planar

Changed paths:
    engines/freescape/area.cpp


diff --git a/engines/freescape/area.cpp b/engines/freescape/area.cpp
index 71e80c43c63..9d103d82d93 100644
--- a/engines/freescape/area.cpp
+++ b/engines/freescape/area.cpp
@@ -288,6 +288,57 @@ void Area::draw(Freescape::Renderer *gfx, uint32 animationTicks, Math::Vector3d
 		}
 	}
 
+	for (auto &planar : planarObjects) {
+		Math::Vector3d centerPlanar = planar->_boundingBox.getMin() + planar->_boundingBox.getMax();
+		centerPlanar /= 2;
+		Math::Vector3d distance;
+		for (auto &object : planarObjects) {
+			if (object == planar)
+				continue;
+
+			distance = object->_boundingBox.distance(centerPlanar);
+			if (distance.length() > 0)
+				continue;
+
+			if (planar->getSize().x() == 0) {
+				if (object->getSize().x() > 0)
+					continue;
+			} else if (planar->getSize().y() == 0) {
+				if (object->getSize().y() > 0)
+					continue;
+			} else if (planar->getSize().z() == 0) {
+				if (object->getSize().z() > 0)
+					continue;
+			} else
+				continue;
+
+			//debug("planar object %d collides with planar object %d", planar->getObjectID(), object->getObjectID());
+			if (offsetMap[planar] == offsetMap[object] && offsetMap[object] != 0) {
+				// Nothing to do?
+			} else if (offsetMap[planar] == offsetMap[object] && offsetMap[object] == 0) {
+				float offset = 1.0;
+				if (planar->getSize().x() == 0) {
+					if (object->getOrigin().x() < centerPlanar.x())
+						offsetMap[planar] = -offset;
+					else
+						offsetMap[planar] = offset;
+				} else if (planar->getSize().y() == 0) {
+					if (object->getOrigin().y() < centerPlanar.y())
+						offsetMap[planar] = -offset;
+					else
+						offsetMap[planar] = offset;
+				} else if (planar->getSize().z() == 0) {
+					if (object->getOrigin().z() < centerPlanar.z())
+						offsetMap[planar] = -offset;
+					else
+						offsetMap[planar] = offset;
+				} else
+					; //It was not really planar?!
+			}
+		}
+	}
+
+
 	for (auto &pair : offsetMap) {
 		pair._key->draw(gfx, pair._value);
 	}


Commit: ebc0c060969075079957173b45ee666aaba3498f
    https://github.com/scummvm/scummvm/commit/ebc0c060969075079957173b45ee666aaba3498f
Author: neuromancer (gustavo.grieco at gmail.com)
Date: 2024-05-09T08:31:57+02:00

Commit Message:
FREESCAPE: only add a floor if needed

Changed paths:
    engines/freescape/area.cpp
    engines/freescape/games/castle/castle.cpp
    engines/freescape/games/eclipse/eclipse.cpp


diff --git a/engines/freescape/area.cpp b/engines/freescape/area.cpp
index 9d103d82d93..ee5ac8c9867 100644
--- a/engines/freescape/area.cpp
+++ b/engines/freescape/area.cpp
@@ -546,7 +546,6 @@ void Area::addFloor() {
 
 void Area::addStructure(Area *global) {
 	if (!global || !_entrancesByID->contains(255)) {
-		addFloor();
 		return;
 	}
 	GlobalStructure *rs = (GlobalStructure *)(*_entrancesByID)[255];
diff --git a/engines/freescape/games/castle/castle.cpp b/engines/freescape/games/castle/castle.cpp
index ef6e61db99e..dc71505fd06 100644
--- a/engines/freescape/games/castle/castle.cpp
+++ b/engines/freescape/games/castle/castle.cpp
@@ -189,6 +189,7 @@ void CastleEngine::loadAssetsDOSFullGame() {
 		for (auto &it : _areaMap)
 			it._value->addStructure(_areaMap[255]);
 
+		_areaMap[1]->addFloor();
 		_areaMap[2]->addFloor();
 		delete stream;
 	} else
@@ -271,6 +272,7 @@ void CastleEngine::loadAssetsAmigaDemo() {
 	for (auto &it : _areaMap)
 		it._value->addStructure(_areaMap[255]);
 
+	_areaMap[1]->addFloor();
 	_areaMap[2]->addFloor();
 }
 
diff --git a/engines/freescape/games/eclipse/eclipse.cpp b/engines/freescape/games/eclipse/eclipse.cpp
index fcb28d43bdd..13ebc7c3bdf 100644
--- a/engines/freescape/games/eclipse/eclipse.cpp
+++ b/engines/freescape/games/eclipse/eclipse.cpp
@@ -91,6 +91,8 @@ void EclipseEngine::loadAssets() {
 	//_noEnergyMessage = _messagesList[16];
 	_fallenMessage = _messagesList[3];
 	_crushedMessage = _messagesList[2];
+	_areaMap[1]->addFloor();
+	_areaMap[51]->addFloor();
 }
 
 bool EclipseEngine::checkIfGameEnded() {


Commit: 133a2dc9b6baee91a5c45e74f41f7ebd6303567c
    https://github.com/scummvm/scummvm/commit/133a2dc9b6baee91a5c45e74f41f7ebd6303567c
Author: neuromancer (gustavo.grieco at gmail.com)
Date: 2024-05-09T08:31:58+02:00

Commit Message:
FREESCAPE: file structure for castle

Changed paths:
  A engines/freescape/games/castle/amiga.cpp
  A engines/freescape/games/castle/dos.cpp
    engines/freescape/games/castle/castle.cpp
    engines/freescape/games/castle/castle.h
    engines/freescape/module.mk


diff --git a/engines/freescape/games/castle/amiga.cpp b/engines/freescape/games/castle/amiga.cpp
new file mode 100644
index 00000000000..65a70078637
--- /dev/null
+++ b/engines/freescape/games/castle/amiga.cpp
@@ -0,0 +1,53 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/file.h"
+#include "common/memstream.h"
+
+#include "freescape/freescape.h"
+#include "freescape/games/castle/castle.h"
+#include "freescape/language/8bitDetokeniser.h"
+
+namespace Freescape {
+
+void CastleEngine::loadAssetsAmigaDemo() {
+	Common::File file;
+	file.open("x");
+	if (!file.isOpen())
+		error("Failed to open 'x' file");
+
+	loadMessagesVariableSize(&file, 0x8bb2, 164);
+	load8bitBinary(&file, 0x162a6, 16);
+	loadPalettes(&file, 0x151a6);
+
+	file.seek(0x2be96); // Area 255
+	_areaMap[255] = load8bitArea(&file, 16);
+	file.close();
+
+	_areaMap[2]->_groundColor = 1;
+	for (auto &it : _areaMap)
+		it._value->addStructure(_areaMap[255]);
+
+	_areaMap[1]->addFloor();
+	_areaMap[2]->addFloor();
+}
+
+} // End of namespace Freescape
\ No newline at end of file
diff --git a/engines/freescape/games/castle/castle.cpp b/engines/freescape/games/castle/castle.cpp
index dc71505fd06..2487889b14b 100644
--- a/engines/freescape/games/castle/castle.cpp
+++ b/engines/freescape/games/castle/castle.cpp
@@ -37,6 +37,7 @@ CastleEngine::CastleEngine(OSystem *syst, const ADGameDescription *gd) : Freesca
 	_playerWidth = 8;
 	_playerDepth = 8;
 	_stepUpDistance = 32;
+	_maxFallingDistance = 8192;
 	_option = nullptr;
 }
 
@@ -109,174 +110,6 @@ byte kFreescapeCastleFont[] = {
 	0x7f, 0x87, 0x0e, 0x1c, 0x38, 0x71, 0xfd, 0xe6,
 };
 
-Common::SeekableReadStream *CastleEngine::decryptFile(const Common::Path &filename) {
-	Common::File file;
-	file.open(filename);
-	if (!file.isOpen())
-		error("Failed to open %s", filename.toString().c_str());
-
-	int size = file.size();
-	byte *encryptedBuffer = (byte *)malloc(size);
-	file.read(encryptedBuffer, size);
-	file.close();
-
-	int seed = 24;
-	for (int i = 0; i < size; i++) {
-		encryptedBuffer[i] ^= seed;
-		seed = (seed + 1) & 0xff;
-	}
-
-	return (new Common::MemoryReadStream(encryptedBuffer, size));
-}
-
-extern byte kEGADefaultPalette[16][3];
-extern Common::MemoryReadStream *unpackEXE(Common::File &ms);
-
-void CastleEngine::loadAssetsDOSFullGame() {
-	Common::File file;
-	Common::SeekableReadStream *stream = nullptr;
-
-	if (_renderMode == Common::kRenderEGA) {
-		_viewArea = Common::Rect(40, 33, 280, 152);
-
-		file.open("CME.EXE");
-		stream = unpackEXE(file);
-		if (stream) {
-			loadSpeakerFxDOS(stream, 0x636d + 0x200, 0x63ed + 0x200);
-		}
-
-		delete stream;
-		file.close();
-
-		file.open("CMLE.DAT");
-		_title = load8bitBinImage(&file, 0x0);
-		_title->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		file.open("CMOE.DAT");
-		_option = load8bitBinImage(&file, 0x0);
-		_option->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		file.open("CME.DAT");
-		_border = load8bitBinImage(&file, 0x0);
-		_border->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		switch (_language) {
-			case Common::ES_ESP:
-				stream = decryptFile("CMLS");
-				break;
-			case Common::FR_FRA:
-				stream = decryptFile("CMLF");
-				break;
-			case Common::DE_DEU:
-				stream = decryptFile("CMLG");
-				break;
-			case Common::EN_ANY:
-				stream = decryptFile("CMLE");
-				break;
-			default:
-				error("Invalid or unsupported language: %x", _language);
-		}
-
-		loadFonts(kFreescapeCastleFont, 59);
-		loadMessagesVariableSize(stream, 0x11, 164);
-		delete stream;
-
-		stream = decryptFile("CMEDF");
-		load8bitBinary(stream, 0, 16);
-		for (auto &it : _areaMap)
-			it._value->addStructure(_areaMap[255]);
-
-		_areaMap[1]->addFloor();
-		_areaMap[2]->addFloor();
-		delete stream;
-	} else
-		error("Not implemented yet");
-
-	for (auto &it : _areaMap) {
-		for (auto &sensor : it._value->getSensors()) {
-			if (sensor->getObjectID() == 125)
-				_areaMap[it._key]->addGroupFromArea(195, _areaMap[255]);
-			else if (sensor->getObjectID() == 126)
-				_areaMap[it._key]->addGroupFromArea(191, _areaMap[255]);
-			else if (sensor->getObjectID() == 127)
-				_areaMap[it._key]->addGroupFromArea(182, _areaMap[255]);
-			else
-				debugC(1, kFreescapeDebugParser, "Sensor %d in area %d", sensor->getObjectID(), it._key);
-		}
-	}
-	// CPC
-	// file = gameDir.createReadStreamForMember("cm.bin");
-	// if (file == nullptr)
-	//	error("Failed to open cm.bin");
-	// load8bitBinary(file, 0x791a, 16);
-}
-
-void CastleEngine::loadAssetsDOSDemo() {
-	Common::File file;
-	Common::SeekableReadStream *stream = nullptr;
-
-	if (_renderMode == Common::kRenderEGA) {
-		_viewArea = Common::Rect(40, 33, 280, 152);
-
-		file.open("CMLE.DAT");
-		_title = load8bitBinImage(&file, 0x0);
-		_title->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		file.open("CMOE.DAT");
-		_option = load8bitBinImage(&file, 0x0);
-		_option->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		file.open("CME.DAT");
-		_border = load8bitBinImage(&file, 0x0);
-		_border->setPalette((byte *)&kEGADefaultPalette, 0, 16);
-		file.close();
-
-		stream = decryptFile("CMLD"); // Only english
-
-		loadFonts(kFreescapeCastleFont, 59);
-		loadMessagesVariableSize(stream, 0x11, 164);
-		delete stream;
-
-		stream = decryptFile("CDEDF");
-		load8bitBinary(stream, 0, 16);
-		for (auto &it : _areaMap)
-			it._value->addStructure(_areaMap[255]);
-
-		_areaMap[2]->addFloor();
-		delete stream;
-	} else
-		error("Not implemented yet");
-}
-
-void CastleEngine::loadAssetsAmigaDemo() {
-	Common::File file;
-	file.open("x");
-	if (!file.isOpen())
-		error("Failed to open 'x' file");
-
-	loadMessagesVariableSize(&file, 0x8bb2, 164);
-	load8bitBinary(&file, 0x162a6, 16);
-	loadPalettes(&file, 0x151a6);
-
-	file.seek(0x2be96); // Area 255
-	_areaMap[255] = load8bitArea(&file, 16);
-	file.close();
-
-
-	_areaMap[2]->_groundColor = 1;
-	for (auto &it : _areaMap)
-		it._value->addStructure(_areaMap[255]);
-
-	_areaMap[1]->addFloor();
-	_areaMap[2]->addFloor();
-}
-
-
 void CastleEngine::gotoArea(uint16 areaID, int entranceID) {
 	debugC(1, kFreescapeDebugMove, "Jumping to area: %d, entrance: %d", areaID, entranceID);
 
@@ -320,32 +153,6 @@ void CastleEngine::gotoArea(uint16 areaID, int entranceID) {
 	resetInput();
 }
 
-void CastleEngine::drawDOSUI(Graphics::Surface *surface) {
-	uint32 color = 10;
-	uint8 r, g, b;
-
-	_gfx->readFromPalette(color, r, g, b);
-	uint32 front = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
-
-	color = 0;
-
-	_gfx->readFromPalette(color, r, g, b);
-	uint32 back = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
-
-	Common::Rect backRect(97, 181, 232, 190);
-	surface->fillRect(backRect, back);
-
-	Common::String message;
-	int deadline;
-	getLatestMessages(message, deadline);
-	if (deadline <= _countdown) {
-		drawStringInSurface(message, 97, 182, front, back, surface);
-		_temporaryMessages.push_back(message);
-		_temporaryMessageDeadlines.push_back(deadline);
-	} else
-		drawStringInSurface(_currentArea->_name, 97, 182, front, back, surface);
-}
-
 void CastleEngine::initGameState() {
 	FreescapeEngine::initGameState();
 	_playerHeightNumber = 1;
diff --git a/engines/freescape/games/castle/castle.h b/engines/freescape/games/castle/castle.h
index b675ed057be..d127b9b2f6e 100644
--- a/engines/freescape/games/castle/castle.h
+++ b/engines/freescape/games/castle/castle.h
@@ -43,4 +43,6 @@ private:
 	Common::SeekableReadStream *decryptFile(const Common::Path &filename);
 };
 
+extern byte kFreescapeCastleFont[];
+
 }
\ No newline at end of file
diff --git a/engines/freescape/games/castle/dos.cpp b/engines/freescape/games/castle/dos.cpp
new file mode 100644
index 00000000000..d9243f89b46
--- /dev/null
+++ b/engines/freescape/games/castle/dos.cpp
@@ -0,0 +1,201 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/file.h"
+#include "common/memstream.h"
+
+#include "freescape/freescape.h"
+#include "freescape/games/castle/castle.h"
+#include "freescape/language/8bitDetokeniser.h"
+
+namespace Freescape {
+
+Common::SeekableReadStream *CastleEngine::decryptFile(const Common::Path &filename) {
+	Common::File file;
+	file.open(filename);
+	if (!file.isOpen())
+		error("Failed to open %s", filename.toString().c_str());
+
+	int size = file.size();
+	byte *encryptedBuffer = (byte *)malloc(size);
+	file.read(encryptedBuffer, size);
+	file.close();
+
+	int seed = 24;
+	for (int i = 0; i < size; i++) {
+		encryptedBuffer[i] ^= seed;
+		seed = (seed + 1) & 0xff;
+	}
+
+	return (new Common::MemoryReadStream(encryptedBuffer, size));
+}
+
+extern byte kEGADefaultPalette[16][3];
+extern Common::MemoryReadStream *unpackEXE(Common::File &ms);
+
+void CastleEngine::loadAssetsDOSFullGame() {
+	Common::File file;
+	Common::SeekableReadStream *stream = nullptr;
+
+	if (_renderMode == Common::kRenderEGA) {
+		_viewArea = Common::Rect(40, 33, 280, 152);
+
+		file.open("CME.EXE");
+		stream = unpackEXE(file);
+		if (stream) {
+			loadSpeakerFxDOS(stream, 0x636d + 0x200, 0x63ed + 0x200);
+		}
+
+		delete stream;
+		file.close();
+
+		file.open("CMLE.DAT");
+		_title = load8bitBinImage(&file, 0x0);
+		_title->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		file.open("CMOE.DAT");
+		_option = load8bitBinImage(&file, 0x0);
+		_option->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		file.open("CME.DAT");
+		_border = load8bitBinImage(&file, 0x0);
+		_border->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		switch (_language) {
+			case Common::ES_ESP:
+				stream = decryptFile("CMLS");
+				break;
+			case Common::FR_FRA:
+				stream = decryptFile("CMLF");
+				break;
+			case Common::DE_DEU:
+				stream = decryptFile("CMLG");
+				break;
+			case Common::EN_ANY:
+				stream = decryptFile("CMLE");
+				break;
+			default:
+				error("Invalid or unsupported language: %x", _language);
+		}
+
+		loadFonts(kFreescapeCastleFont, 59);
+		loadMessagesVariableSize(stream, 0x11, 164);
+		delete stream;
+
+		stream = decryptFile("CMEDF");
+		load8bitBinary(stream, 0, 16);
+		for (auto &it : _areaMap)
+			it._value->addStructure(_areaMap[255]);
+
+		_areaMap[1]->addFloor();
+		_areaMap[2]->addFloor();
+		delete stream;
+	} else
+		error("Not implemented yet");
+
+	for (auto &it : _areaMap) {
+		for (auto &sensor : it._value->getSensors()) {
+			if (sensor->getObjectID() == 125)
+				_areaMap[it._key]->addGroupFromArea(195, _areaMap[255]);
+			else if (sensor->getObjectID() == 126)
+				_areaMap[it._key]->addGroupFromArea(191, _areaMap[255]);
+			else if (sensor->getObjectID() == 127)
+				_areaMap[it._key]->addGroupFromArea(182, _areaMap[255]);
+			else
+				debugC(1, kFreescapeDebugParser, "Sensor %d in area %d", sensor->getObjectID(), it._key);
+		}
+	}
+	// CPC
+	// file = gameDir.createReadStreamForMember("cm.bin");
+	// if (file == nullptr)
+	//	error("Failed to open cm.bin");
+	// load8bitBinary(file, 0x791a, 16);
+}
+
+void CastleEngine::loadAssetsDOSDemo() {
+	Common::File file;
+	Common::SeekableReadStream *stream = nullptr;
+
+	if (_renderMode == Common::kRenderEGA) {
+		_viewArea = Common::Rect(40, 33, 280, 152);
+
+		file.open("CMLE.DAT");
+		_title = load8bitBinImage(&file, 0x0);
+		_title->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		file.open("CMOE.DAT");
+		_option = load8bitBinImage(&file, 0x0);
+		_option->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		file.open("CME.DAT");
+		_border = load8bitBinImage(&file, 0x0);
+		_border->setPalette((byte *)&kEGADefaultPalette, 0, 16);
+		file.close();
+
+		stream = decryptFile("CMLD"); // Only english
+
+		loadFonts(kFreescapeCastleFont, 59);
+		loadMessagesVariableSize(stream, 0x11, 164);
+		delete stream;
+
+		stream = decryptFile("CDEDF");
+		load8bitBinary(stream, 0, 16);
+		for (auto &it : _areaMap)
+			it._value->addStructure(_areaMap[255]);
+
+		_areaMap[2]->addFloor();
+		delete stream;
+	} else
+		error("Not implemented yet");
+}
+
+void CastleEngine::drawDOSUI(Graphics::Surface *surface) {
+	uint32 color = 10;
+	uint8 r, g, b;
+
+	_gfx->readFromPalette(color, r, g, b);
+	uint32 front = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
+
+	color = 0;
+
+	_gfx->readFromPalette(color, r, g, b);
+	uint32 back = _gfx->_texturePixelFormat.ARGBToColor(0xFF, r, g, b);
+
+	Common::Rect backRect(97, 181, 232, 190);
+	surface->fillRect(backRect, back);
+
+	Common::String message;
+	int deadline;
+	getLatestMessages(message, deadline);
+	if (deadline <= _countdown) {
+		drawStringInSurface(message, 97, 182, front, back, surface);
+		_temporaryMessages.push_back(message);
+		_temporaryMessageDeadlines.push_back(deadline);
+	} else
+		drawStringInSurface(_currentArea->_name, 97, 182, front, back, surface);
+}
+
+} // End of namespace Freescape
diff --git a/engines/freescape/module.mk b/engines/freescape/module.mk
index e4df9695d3c..df4c96fb3e4 100644
--- a/engines/freescape/module.mk
+++ b/engines/freescape/module.mk
@@ -7,6 +7,8 @@ MODULE_OBJS := \
 	demo.o \
 	freescape.o \
 	games/castle/castle.o \
+	games/castle/amiga.o \
+	games/castle/dos.o \
 	games/dark/amiga.o \
 	games/dark/atari.o \
 	games/dark/cpc.o \




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