ZVISION: Action:region and visual effects implemented.

9 files changed, 899 insertions, 2 deletions

diff --git a/engines/zvision/graphics/effect.h b/engines/zvision/graphics/effect.h
new file mode 100644
index 0000000000..c6653c6037
--- /dev/null
+++ b/engines/zvision/graphics/effect.h
@@ -0,0 +1,83 @@
+/* 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 EFFECT_H_INCLUDED
+#define EFFECT_H_INCLUDED
+
+#include "common/rect.h"
+#include "common/list.h"
+#include "graphics/surface.h"
+
+#include "zvision/zvision.h"
+
+namespace ZVision {
+
+class ZVision;
+
+class Effect {
+public:
+
+	Effect(ZVision *engine, uint32 key, Common::Rect region, bool ported) : _engine(engine), _key(key), _region(region), _ported(ported) {
+		_surface.create(_region.width(), _region.height(), _engine->_pixelFormat);
+	}
+	virtual ~Effect() {}
+
+	uint32 getKey() {
+		return _key;
+	}
+
+	Common::Rect getRegion() {
+		return _region;
+	}
+
+	bool isPort() {
+		return _ported;
+	}
+
+	virtual const Graphics::Surface *draw(const Graphics::Surface &srcSubRect) {
+		return &_surface;
+	}
+
+	virtual void update() {}
+
+protected:
+	ZVision *_engine;
+	uint32 _key;
+	Common::Rect _region;
+	bool _ported;
+	Graphics::Surface _surface;
+
+// Static member functions
+public:
+
+};
+
+struct EffectMapUnit {
+	uint32 count;
+	bool inEffect;
+};
+
+typedef Common::List<EffectMapUnit> EffectMap;
+
+} // End of namespace ZVision
+
+#endif // EFFECT_H_INCLUDED
diff --git a/engines/zvision/graphics/effects/fog.cpp b/engines/zvision/graphics/effects/fog.cpp
new file mode 100644
index 0000000000..b6c5e7b011
--- /dev/null
+++ b/engines/zvision/graphics/effects/fog.cpp
@@ -0,0 +1,174 @@
+/* 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 "common/scummsys.h"
+
+#include "zvision/graphics/effects/fog.h"
+
+#include "zvision/zvision.h"
+#include "zvision/graphics/render_manager.h"
+#include "zvision/scripting/script_manager.h"
+
+
+namespace ZVision {
+
+FogFx::FogFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, EffectMap *Map, const Common::String &clouds):
+	Effect(engine, key, region, ported) {
+
+	_map = Map;
+
+	_r = 0;
+	_g = 0;
+	_b = 0;
+
+	_pos = 0;
+
+	if (_engine->getSearchManager()->hasFile(clouds))
+		_engine->getRenderManager()->readImageToSurface(clouds, _fog);
+	else
+		_engine->getRenderManager()->readImageToSurface("cloud.tga", _fog);
+
+	_mp.resize(_fog.h);
+	for (int16 i = 0; i < _fog.h; i++) {
+		_mp[i].resize(_fog.w);
+		for (int16 j = 0; j < _fog.w; j++)
+			_mp[i][j] = true;
+	}
+
+	for (uint8 i = 0; i < 32; i++)
+		_colorMap[i] = 0;
+}
+
+FogFx::~FogFx() {
+	if (_map)
+		delete _map;
+
+	for (uint16 i = 0; i < _mp.size(); i++)
+		_mp[i].clear();
+	_mp.clear();
+}
+
+const Graphics::Surface *FogFx::draw(const Graphics::Surface &srcSubRect) {
+	_surface.copyFrom(srcSubRect);
+	EffectMap::iterator it = _map->begin();
+
+	uint32 cnt = 0;
+
+	for (uint16 j = 0; j < _surface.h; j++) {
+		uint16 *lineBuf = (uint16 *)_surface.getBasePtr(0, j);
+
+		for (uint16 i = 0; i < _surface.w; i++) {
+			if (it->inEffect) {
+				// Not 100% equivalent, but looks nice and not buggy
+				uint8 sr, sg, sb;
+				_engine->_pixelFormat.colorToRGB(lineBuf[i], sr, sg, sb);
+				uint16 fogColor = *(uint16 *)_fog.getBasePtr((i + _pos) % _fog.w, j);
+				uint8 dr, dg, db;
+				_engine->_pixelFormat.colorToRGB(_colorMap[fogColor & 0x1F], dr, dg, db);
+				uint16 fr = dr + sr;
+				if (fr > 255)
+					fr = 255;
+				uint16 fg = dg + sg;
+				if (fg > 255)
+					fg = 255;
+				uint16 fb = db + sb;
+				if (fb > 255)
+					fb = 255;
+				lineBuf[i] = _engine->_pixelFormat.RGBToColor(fr, fg, fb);
+			}
+			cnt++;
+			if (cnt >= it->count) {
+				it++;
+				cnt = 0;
+			}
+			if (it == _map->end())
+				break;
+		}
+		if (it == _map->end())
+			break;
+	}
+
+	return &_surface;
+}
+
+void FogFx::update() {
+	_pos += _engine->getScriptManager()->getStateValue(StateKey_EF9_Speed);
+	_pos %= _fog.w;
+
+	uint8 dr = _engine->getScriptManager()->getStateValue(StateKey_EF9_R);
+	uint8 dg = _engine->getScriptManager()->getStateValue(StateKey_EF9_G);
+	uint8 db = _engine->getScriptManager()->getStateValue(StateKey_EF9_B);
+	dr = CLIP((int)dr, 0, 31);
+	dg = CLIP((int)dg, 0, 31);
+	db = CLIP((int)db, 0, 31);
+
+	if (dr != _r || dg != _g || db != _b) {
+		if (_r > dr)
+			_r--;
+		else if (_r < dr)
+			_r++;
+
+		if (_g > dg)
+			_g--;
+		else if (_g < dg)
+			_g++;
+
+		if (_b > db)
+			_b--;
+		else if (_b < db)
+			_b++;
+
+		// Not 100% equivalent, but looks nice and not buggy
+
+		_colorMap[31] = _engine->_pixelFormat.RGBToColor(_r << 3, _g << 3, _b << 3);
+
+		for (uint8 i = 0; i < 31; i++) {
+			float perc = (float)i / 31.0;
+			uint8 cr = (float)_r * perc;
+			uint8 cg = (float)_g * perc;
+			uint8 cb = (float)_b * perc;
+			_colorMap[i] = _engine->_pixelFormat.RGBToColor(cr << 3, cg << 3, cb << 3);
+		}
+	}
+
+	for (uint16 j = 0; j < _fog.h; j++) {
+		uint16 *pix = (uint16 *)_fog.getBasePtr(0, j);
+
+		for (uint16 i = 0; i < _fog.w; i++) {
+			if (_mp[j][i]) {
+				if ((pix[i] & 0x1F) == 0x1F) {
+					pix[i]--;
+					_mp[j][i] = false;
+				} else
+					pix[i]++;
+			} else {
+				if ((pix[i] & 0x1F) == 0) {
+					pix[i]++;
+					_mp[j][i] = true;
+				} else
+					pix[i]--;
+			}
+		}
+	}
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/graphics/effects/fog.h b/engines/zvision/graphics/effects/fog.h
new file mode 100644
index 0000000000..62dd1f9473
--- /dev/null
+++ b/engines/zvision/graphics/effects/fog.h
@@ -0,0 +1,52 @@
+/* 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 FOGFX_H_INCLUDED
+#define FOGFX_H_INCLUDED
+
+#include "zvision/graphics/effect.h"
+
+namespace ZVision {
+
+class ZVision;
+
+class FogFx : public Effect {
+public:
+
+	FogFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, EffectMap *Map, const Common::String &clouds);
+	~FogFx();
+
+	const Graphics::Surface *draw(const Graphics::Surface &srcSubRect);
+
+	void update();
+
+private:
+	EffectMap *_map;
+	Graphics::Surface _fog;
+	uint8 _r, _g, _b;
+	int32 _pos;
+	Common::Array< Common::Array< bool > > _mp;
+	uint16 _colorMap[32];
+};
+} // End of namespace ZVision
+
+#endif // FOGFX_H_INCLUDED
diff --git a/engines/zvision/graphics/effects/light.cpp b/engines/zvision/graphics/effects/light.cpp
new file mode 100644
index 0000000000..9bff077051
--- /dev/null
+++ b/engines/zvision/graphics/effects/light.cpp
@@ -0,0 +1,110 @@
+/* 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 "common/scummsys.h"
+
+#include "zvision/graphics/effects/light.h"
+
+#include "zvision/zvision.h"
+#include "zvision/graphics/render_manager.h"
+
+
+namespace ZVision {
+
+LightFx::LightFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, EffectMap *Map, int8 delta, int8 minD, int8 maxD):
+	Effect(engine, key, region, ported) {
+	_map = Map;
+	_delta = delta;
+	_up = true;
+	_pos = 0;
+
+	_minD = minD;
+	if (_minD < -delta)
+		_minD = -delta;
+
+	_maxD = maxD;
+	if (_maxD > delta)
+		_maxD = delta;
+}
+
+LightFx::~LightFx() {
+	if (_map)
+		delete _map;
+}
+
+const Graphics::Surface *LightFx::draw(const Graphics::Surface &srcSubRect) {
+	_surface.copyFrom(srcSubRect);
+	EffectMap::iterator it = _map->begin();
+	uint32 cnt = 0;
+
+	uint32 dcolor = 0;
+
+	if (_pos < 0) {
+		uint8 cc = ((-_pos) & 0x1F) << 3;
+		dcolor = _engine->_pixelFormat.RGBToColor(cc, cc, cc);
+	} else {
+		uint8 cc = (_pos & 0x1F) << 3;
+		dcolor = _engine->_pixelFormat.RGBToColor(cc, cc, cc);
+	}
+
+	for (uint16 j = 0; j < _surface.h; j++) {
+		uint16 *lineBuf = (uint16 *)_surface.getBasePtr(0, j);
+
+		for (uint16 i = 0; i < _surface.w; i++) {
+			if (it->inEffect) {
+				if (_pos < 0) {
+					lineBuf[i] -= dcolor;
+				} else {
+					lineBuf[i] += dcolor;
+				}
+			}
+			cnt++;
+			if (cnt >= it->count) {
+				it++;
+				cnt = 0;
+			}
+			if (it == _map->end())
+				break;
+		}
+		if (it == _map->end())
+			break;
+	}
+
+	return &_surface;
+}
+
+void LightFx::update() {
+	if (_up)
+		_pos++;
+	else
+		_pos--;
+
+	if (_pos <= _minD) {
+		_up = !_up;
+		_pos = _minD;
+	} else if (_pos >= _maxD) {
+		_up = !_up;
+		_pos = _maxD;
+	}
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/graphics/effects/light.h b/engines/zvision/graphics/effects/light.h
new file mode 100644
index 0000000000..ae87d66cb3
--- /dev/null
+++ b/engines/zvision/graphics/effects/light.h
@@ -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 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 LIGHTFX_H_INCLUDED
+#define LIGHTFX_H_INCLUDED
+
+#include "zvision/graphics/effect.h"
+
+namespace ZVision {
+
+class ZVision;
+
+class LightFx : public Effect {
+public:
+
+	LightFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, EffectMap *Map, int8 delta, int8 minD = -127, int8 maxD = 127);
+	~LightFx();
+
+	const Graphics::Surface *draw(const Graphics::Surface &srcSubRect);
+
+	void update();
+
+private:
+	EffectMap *_map;
+	int32 _delta;
+	bool _up;
+	int32 _pos;
+
+	int8 _minD;
+	int8 _maxD;
+};
+} // End of namespace ZVision
+
+#endif // LIGHTFX_H_INCLUDED
diff --git a/engines/zvision/graphics/effects/wave.cpp b/engines/zvision/graphics/effects/wave.cpp
new file mode 100644
index 0000000000..88239f3cad
--- /dev/null
+++ b/engines/zvision/graphics/effects/wave.cpp
@@ -0,0 +1,146 @@
+/* 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 "common/scummsys.h"
+
+#include "zvision/graphics/effects/wave.h"
+
+#include "zvision/zvision.h"
+#include "zvision/graphics/render_manager.h"
+
+
+namespace ZVision {
+
+WaveFx::WaveFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, int16 frames, int16 s_x, int16 s_y, float ampl, float waveln, float spd):
+	Effect(engine, key, region, ported) {
+
+	_frame = 0;
+	_frame_cnt = frames;
+
+	_ampls.resize(_frame_cnt);
+	_hw = _region.width() / 2;
+	_hh = _region.height() / 2;
+
+	int32 frmsize = _hw * _hh;
+
+	float phase = 0;
+
+	int16 w_4 = _hw / 2;
+	int16 h_4 = _hh / 2;
+
+	for (int16 i = 0; i < _frame_cnt; i++) {
+		_ampls[i].resize(frmsize);
+
+		for (int16 y = 0; y < _hh; y++)
+			for (int16 x = 0; x < _hw; x++) {
+				int16 dx = (x - w_4);
+				int16 dy = (y - h_4);
+
+				_ampls[i][x + y * _hw] = ampl * sin(sqrt(dx * dx / (float)s_x + dy * dy / (float)s_y) / (-waveln * 3.1415926) + phase);
+			}
+		phase += spd;
+	}
+}
+
+WaveFx::~WaveFx() {
+	for (uint16 i = 0; i < _ampls.size(); i++)
+		_ampls[i].clear();
+	_ampls.clear();
+}
+
+const Graphics::Surface *WaveFx::draw(const Graphics::Surface &srcSubRect) {
+	for (int16 y = 0; y < _hh; y++) {
+		uint16 *abc  = (uint16 *)_surface.getBasePtr(0, y);
+		uint16 *abc2  = (uint16 *)_surface.getBasePtr(0, _hh + y);
+		uint16 *abc3  = (uint16 *)_surface.getBasePtr(_hw, y);
+		uint16 *abc4  = (uint16 *)_surface.getBasePtr(_hw, _hh + y);
+
+		for (int16 x = 0; x < _hw; x++) {
+			int8 amnt = _ampls[_frame][x + _hw * y];
+
+			int16 n_x = x + amnt;
+			int16 n_y = y + amnt;
+
+			if (n_x < 0)
+				n_x = 0;
+			if (n_x >= _region.width())
+				n_x = _region.width() - 1;
+			if (n_y < 0)
+				n_y = 0;
+			if (n_y >= _region.height())
+				n_y = _region.height() - 1;
+			*abc = *(const uint16 *)srcSubRect.getBasePtr(n_x, n_y);
+
+			n_x = x + amnt + _hw;
+			n_y = y + amnt;
+
+			if (n_x < 0)
+				n_x = 0;
+			if (n_x >= _region.width())
+				n_x = _region.width() - 1;
+			if (n_y < 0)
+				n_y = 0;
+			if (n_y >= _region.height())
+				n_y = _region.height() - 1;
+			*abc3 = *(const uint16 *)srcSubRect.getBasePtr(n_x, n_y);
+
+			n_x = x + amnt;
+			n_y = y + amnt + _hh;
+
+			if (n_x < 0)
+				n_x = 0;
+			if (n_x >= _region.width())
+				n_x = _region.width() - 1;
+			if (n_y < 0)
+				n_y = 0;
+			if (n_y >= _region.height())
+				n_y = _region.height() - 1;
+			*abc2 = *(const uint16 *)srcSubRect.getBasePtr(n_x, n_y);
+
+			n_x = x + amnt + _hw;
+			n_y = y + amnt + _hh;
+
+			if (n_x < 0)
+				n_x = 0;
+			if (n_x >= _region.width())
+				n_x = _region.width() - 1;
+			if (n_y < 0)
+				n_y = 0;
+			if (n_y >= _region.height())
+				n_y = _region.height() - 1;
+			*abc4 = *(const uint16 *)srcSubRect.getBasePtr(n_x, n_y);
+
+			abc++;
+			abc2++;
+			abc3++;
+			abc4++;
+		}
+	}
+
+	return &_surface;
+}
+
+void WaveFx::update() {
+	_frame = (_frame + 1) % _frame_cnt;
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/graphics/effects/wave.h b/engines/zvision/graphics/effects/wave.h
new file mode 100644
index 0000000000..0046dfceec
--- /dev/null
+++ b/engines/zvision/graphics/effects/wave.h
@@ -0,0 +1,51 @@
+/* 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 WAVEFX_H_INCLUDED
+#define WAVEFX_H_INCLUDED
+
+#include "common/array.h"
+#include "zvision/graphics/effect.h"
+
+namespace ZVision {
+
+class ZVision;
+
+class WaveFx : public Effect {
+public:
+
+	WaveFx(ZVision *engine, uint32 key, Common::Rect region, bool ported, int16 frames, int16 s_x, int16 s_y, float ampl, float waveln, float spd);
+	~WaveFx();
+
+	const Graphics::Surface *draw(const Graphics::Surface &srcSubRect);
+
+	void update();
+
+private:
+	int16 _frame;
+	int16 _frame_cnt;
+	int16 _hw, _hh;
+	Common::Array< Common::Array< int8 > > _ampls;
+};
+} // End of namespace ZVision
+
+#endif // WAVEFX_H_INCLUDED
diff --git a/engines/zvision/graphics/render_manager.cpp b/engines/zvision/graphics/render_manager.cpp
index 5aa0d752d0..0aa062214f 100644
--- a/engines/zvision/graphics/render_manager.cpp
+++ b/engines/zvision/graphics/render_manager.cpp
@@ -54,6 +54,7 @@ RenderManager::RenderManager(ZVision *engine, uint32 windowWidth, uint32 windowH
 	  _renderTable(_wrkWidth, _wrkHeight) {
 
 	_wrkWnd.create(_wrkWidth, _wrkHeight, _pixelFormat);
+	_effectWnd.create(_wrkWidth, _wrkHeight, _pixelFormat);
 	_outWnd.create(_wrkWidth, _wrkHeight, _pixelFormat);
 	_menuWnd.create(windowWidth, workingWindow.top, _pixelFormat);
 	_subWnd.create(windowWidth, windowHeight - workingWindow.bottom, _pixelFormat);
@@ -67,21 +68,55 @@ RenderManager::RenderManager(ZVision *engine, uint32 windowWidth, uint32 windowH
 RenderManager::~RenderManager() {
 	_curBkg.free();
 	_wrkWnd.free();
+	_effectWnd.free();
 	_outWnd.free();
+	_menuWnd.free();
+	_subWnd.free();
 }
 
 void RenderManager::renderBackbufferToScreen() {
 	Graphics::Surface *out = &_outWnd;
+	Graphics::Surface *in = &_wrkWnd;
+
+	if (!_effects.empty()) {
+		bool copied = false;
+		Common::Rect windRect(_wrkWidth, _wrkHeight);
+		for (effectsList::iterator it = _effects.begin(); it != _effects.end(); it++) {
+			Common::Rect rect = (*it)->getRegion();
+			Common::Rect scrPlace = rect;
+			if ((*it)->isPort())
+				scrPlace = bkgRectToScreen(scrPlace);
+			if (windRect.intersects(scrPlace)) {
+				if (!copied) {
+					copied = true;
+					_effectWnd.copyFrom(_wrkWnd);
+					in = &_effectWnd;
+				}
+				const Graphics::Surface *post;
+				if ((*it)->isPort())
+					post = (*it)->draw(_curBkg.getSubArea(rect));
+				else
+					post = (*it)->draw(_effectWnd.getSubArea(rect));
+				blitSurfaceToSurface(*post, _effectWnd, scrPlace.left, scrPlace.top);
+				scrPlace.clip(windRect);
+				if (_wrkWndDirtyRect .isEmpty()) {
+					_wrkWndDirtyRect = scrPlace;
+				} else {
+					_wrkWndDirtyRect.extend(scrPlace);
+				}
+			}
+		}
+	}
 
 	RenderTable::RenderState state = _renderTable.getRenderState();
 	if (state == RenderTable::PANORAMA || state == RenderTable::TILT) {
 		if (!_wrkWndDirtyRect.isEmpty()) {
-			_renderTable.mutateImage(&_outWnd, &_wrkWnd);
+			_renderTable.mutateImage(&_outWnd, in);
 			out = &_outWnd;
 			_outWndDirtyRect = Common::Rect(_wrkWidth, _wrkHeight);
 		}
 	} else {
-		out = &_wrkWnd;
+		out = in;
 		_outWndDirtyRect = _wrkWndDirtyRect;
 	}
 
@@ -832,4 +867,183 @@ Common::Point RenderManager::getBkgSize() {
 	return Common::Point(_bkgWidth, _bkgHeight);
 }
 
+void RenderManager::addEffect(Effect *_effect) {
+	_effects.push_back(_effect);
+}
+
+void RenderManager::deleteEffect(uint32 ID) {
+	for (effectsList::iterator it = _effects.begin(); it != _effects.end(); it++) {
+		if ((*it)->getKey() == ID) {
+			delete *it;
+			it = _effects.erase(it);
+		}
+	}
+}
+
+Common::Rect RenderManager::bkgRectToScreen(const Common::Rect &src) {
+	Common::Rect tmp = src;
+	RenderTable::RenderState state = _renderTable.getRenderState();
+
+	if (state == RenderTable::PANORAMA) {
+		if (_bkgOff < _screenCenterX) {
+			Common::Rect rScreen(_screenCenterX + _bkgOff, _wrkHeight);
+			Common::Rect lScreen(_wrkWidth - rScreen.width(), _wrkHeight);
+			lScreen.translate(_bkgWidth - lScreen.width(), 0);
+			lScreen.clip(src);
+			rScreen.clip(src);
+			if (rScreen.width() < lScreen.width()) {
+				tmp.translate(_screenCenterX - _bkgOff - _bkgWidth, 0);
+			} else {
+				tmp.translate(_screenCenterX - _bkgOff, 0);
+			}
+		} else if (_bkgWidth - _bkgOff < _screenCenterX) {
+			Common::Rect rScreen(_screenCenterX - (_bkgWidth - _bkgOff), _wrkHeight);
+			Common::Rect lScreen(_wrkWidth - rScreen.width(), _wrkHeight);
+			lScreen.translate(_bkgWidth - lScreen.width(), 0);
+			lScreen.clip(src);
+			rScreen.clip(src);
+			if (lScreen.width() < rScreen.width()) {
+				tmp.translate(_screenCenterX + (_bkgWidth - _bkgOff), 0);
+			} else {
+				tmp.translate(_screenCenterX - _bkgOff, 0);
+			}
+		} else {
+			tmp.translate(_screenCenterX - _bkgOff, 0);
+		}
+	} else if (state == RenderTable::TILT) {
+		tmp.translate(0, (_screenCenterY - _bkgOff));
+	}
+
+	return tmp;
+}
+
+EffectMap *RenderManager::makeEffectMap(const Common::Point &xy, int16 depth, const Common::Rect &rect, int8 *_minComp, int8 *_maxComp) {
+	Common::Rect bkgRect(_bkgWidth, _bkgHeight);
+	if (!bkgRect.contains(xy))
+		return NULL;
+
+	if (!bkgRect.intersects(rect))
+		return NULL;
+
+	uint16 color = *(uint16 *)_curBkg.getBasePtr(xy.x, xy.y);
+	uint8 stC1, stC2, stC3;
+	_curBkg.format.colorToRGB(color, stC1, stC2, stC3);
+	EffectMap *newMap = new EffectMap;
+
+	EffectMapUnit unit;
+	unit.count = 0;
+	unit.inEffect = false;
+
+	int16 w = rect.width();
+	int16 h = rect.height();
+
+	bool first = true;
+
+	uint8 minComp = MIN(MIN(stC1, stC2), stC3);
+	uint8 maxComp = MAX(MAX(stC1, stC2), stC3);
+
+	uint8 depth8 = depth << 3;
+
+	for (int16 j = 0; j < h; j++) {
+		uint16 *pix = (uint16 *)_curBkg.getBasePtr(rect.left, rect.top + j);
+		for (int16 i = 0; i < w; i++) {
+			uint16 curClr = pix[i];
+			uint8 cC1, cC2, cC3;
+			_curBkg.format.colorToRGB(curClr, cC1, cC2, cC3);
+
+			bool use = false;
+
+			if (curClr == color)
+				use = true;
+			else if (curClr > color) {
+				if ((cC1 - stC1 < depth8) &&
+				        (cC2 - stC2 < depth8) &&
+				        (cC3 - stC3 < depth8))
+					use = true;
+			} else { /* if (curClr < color) */
+				if ((stC1 - cC1 < depth8) &&
+				        (stC2 - cC2 < depth8) &&
+				        (stC3 - cC3 < depth8))
+					use = true;
+			}
+
+			if (first) {
+				unit.inEffect = use;
+				first = false;
+			}
+
+			if (use) {
+				uint8 cMinComp = MIN(MIN(cC1, cC2), cC3);
+				uint8 cMaxComp = MAX(MAX(cC1, cC2), cC3);
+				if (cMinComp < minComp)
+					minComp = cMinComp;
+				if (cMaxComp > maxComp)
+					maxComp = cMaxComp;
+			}
+
+			if (unit.inEffect == use)
+				unit.count++;
+			else {
+				newMap->push_back(unit);
+				unit.count = 1;
+				unit.inEffect = use;
+			}
+		}
+	}
+	newMap->push_back(unit);
+
+	if (_minComp) {
+		if (minComp - depth8 < 0)
+			*_minComp = -(minComp >> 3);
+		else
+			*_minComp = -depth;
+	}
+	if (_maxComp) {
+		if ((int16)maxComp + (int16)depth8 > 255)
+			*_maxComp = (255 - maxComp) >> 3;
+		else
+			*_maxComp = depth;
+	}
+
+	return newMap;
+}
+
+EffectMap *RenderManager::makeEffectMap(const Graphics::Surface &surf, uint16 transp) {
+	EffectMapUnit unit;
+	unit.count = 0;
+	unit.inEffect = false;
+
+	int16 w = surf.w;
+	int16 h = surf.h;
+
+	EffectMap *newMap = new EffectMap;
+
+	bool first = true;
+
+	for (int16 j = 0; j < h; j++) {
+		const uint16 *pix = (const uint16 *)surf.getBasePtr(0, j);
+		for (int16 i = 0; i < w; i++) {
+			bool use = false;
+			if (pix[i] != transp)
+				use = true;
+
+			if (first) {
+				unit.inEffect = use;
+				first = false;
+			}
+
+			if (unit.inEffect == use)
+				unit.count++;
+			else {
+				newMap->push_back(unit);
+				unit.count = 1;
+				unit.inEffect = use;
+			}
+		}
+	}
+	newMap->push_back(unit);
+
+	return newMap;
+}
+
 } // End of namespace ZVision
diff --git a/engines/zvision/graphics/render_manager.h b/engines/zvision/graphics/render_manager.h
index 24234e28e1..665a27bf64 100644
--- a/engines/zvision/graphics/render_manager.h
+++ b/engines/zvision/graphics/render_manager.h
@@ -31,6 +31,8 @@
 
 #include "graphics/surface.h"
 
+#include "effect.h"
+
 
 class OSystem;
 
@@ -68,6 +70,7 @@ private:
 //	};
 //
 	typedef Common::HashMap<uint16, oneSub> subMap;
+	typedef Common::List<Effect *> effectsList;
 
 private:
 	ZVision *_engine;
@@ -93,6 +96,8 @@ private:
 
 	Common::Rect _menuWndDirtyRect;
 
+	Graphics::Surface _effectWnd;
+
 
 	// A buffer the exact same size as the workingWindow
 	// This buffer stores everything un-warped, then does a warp at the end of the frame
@@ -151,6 +156,8 @@ private:
 	/** Holds any 'leftover' milliseconds between frames */
 	//uint _accumulatedVelocityMilliseconds;
 
+	effectsList _effects;
+
 public:
 	void initialize();
 
@@ -267,6 +274,13 @@ public:
 	 */
 	void readImageToSurface(const Common::String &fileName, Graphics::Surface &destination);
 	void readImageToSurface(const Common::String &fileName, Graphics::Surface &destination, bool transposed);
+
+	void addEffect(Effect *_effect);
+	void deleteEffect(uint32 ID);
+	EffectMap *makeEffectMap(const Common::Point &xy, int16 depth, const Common::Rect &rect, int8 *minD, int8 *maxD);
+	EffectMap *makeEffectMap(const Graphics::Surface &surf, uint16 transp);
+
+	Common::Rect bkgRectToScreen(const Common::Rect &src);
 };
 
 } // End of namespace ZVision