ZVISION: Implement safe control

2 files changed, 279 insertions, 0 deletions

diff --git a/engines/zvision/scripting/controls/safe_control.cpp b/engines/zvision/scripting/controls/safe_control.cpp
new file mode 100644
index 0000000000..a6be20bce8
--- /dev/null
+++ b/engines/zvision/scripting/controls/safe_control.cpp
@@ -0,0 +1,208 @@
+/* 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/scripting/controls/safe_control.h"
+
+#include "zvision/zvision.h"
+#include "zvision/scripting/script_manager.h"
+#include "zvision/graphics/render_manager.h"
+#include "zvision/cursors/cursor_manager.h"
+#include "zvision/animation/meta_animation.h"
+#include "zvision/utility/utility.h"
+
+#include "common/stream.h"
+#include "common/file.h"
+#include "common/tokenizer.h"
+#include "common/system.h"
+
+#include "graphics/surface.h"
+
+
+namespace ZVision {
+
+SafeControl::SafeControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream)
+	: Control(engine, key, CONTROL_SAFE) {
+	_num_states = 0;
+	_cur_state = 0;
+	_animation = NULL;
+	_radius_inner = 0;
+	_radius_inner_sq = 0;
+	_radius_outer = 0;
+	_radius_outer_sq = 0;
+	_zero_pointer = 0;
+	_start_pointer = 0;
+	_cur_frame = -1;
+	_to_frame = 0;
+	_frame_time = 0;
+	_lastRenderedFrame = -1;
+
+	// Loop until we find the closing brace
+	Common::String line = stream.readLine();
+	trimCommentsAndWhiteSpace(&line);
+	Common::String param;
+	Common::String values;
+	getParams(line, param, values);
+
+	while (!stream.eos() && !line.contains('}')) {
+		if (param.matchString("animation", true)) {
+			if (values.hasSuffix(".avi") || values.hasSuffix(".rlf"))
+				_animation = new MetaAnimation(values, _engine);
+		} else if (param.matchString("rectangle", true)) {
+			int x;
+			int y;
+			int width;
+			int height;
+
+			sscanf(values.c_str(), "%d %d %d %d", &x, &y, &width, &height);
+
+			_rectangle = Common::Rect(x, y, width, height);
+		} else if (param.matchString("num_states", true)) {
+			_num_states = atoi(values.c_str());
+		} else if (param.matchString("center", true)) {
+			int x;
+			int y;
+
+			sscanf(values.c_str(), "%d %d", &x, &y);
+			_center = Common::Point(x,y);
+		} else if (param.matchString("dial_inner_radius", true)) {
+			_radius_inner = atoi(values.c_str());
+			_radius_inner_sq = _radius_inner * _radius_inner;
+		} else if (param.matchString("radius", true)) {
+			_radius_outer = atoi(values.c_str());
+			_radius_outer_sq = _radius_outer * _radius_outer;
+		} else if (param.matchString("zero_radians_offset", true)) {
+			_zero_pointer = atoi(values.c_str());
+		} else if (param.matchString("pointer_offset", true)) {
+			_start_pointer = atoi(values.c_str());
+			_cur_state = _start_pointer;
+		} else if (param.matchString("cursor", true)) {
+			// Not used
+		} else if (param.matchString("mirrored", true)) {
+			// Not used
+		} else if (param.matchString("venus_id", true)) {
+			_venus_id = atoi(values.c_str());
+		}
+
+		line = stream.readLine();
+		trimCommentsAndWhiteSpace(&line);
+		getParams(line, param, values);
+	}
+	renderFrame(_cur_state);
+}
+
+SafeControl::~SafeControl() {
+	if (_animation)
+		delete _animation;
+
+}
+
+void SafeControl::renderFrame(uint frameNumber) {
+	if (frameNumber == 0) {
+		_lastRenderedFrame = frameNumber;
+	} else if ((int16)frameNumber < _lastRenderedFrame) {
+		_lastRenderedFrame = frameNumber;
+		frameNumber = (_num_states * 2) - frameNumber;
+	} else {
+		_lastRenderedFrame = frameNumber;
+	}
+
+	const Graphics::Surface *frameData;
+	int x = _rectangle.left;
+	int y = _rectangle.top;
+
+	frameData = _animation->getFrameData(frameNumber);
+	if (frameData)
+		_engine->getRenderManager()->blitSurfaceToBkg(*frameData, x, y);
+}
+
+bool SafeControl::process(uint32 deltaTimeInMillis) {
+	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
+		return false;
+
+	if (_cur_frame != _to_frame) {
+		_frame_time -= deltaTimeInMillis;
+
+		if (_frame_time <= 0) {
+			if (_cur_frame < _to_frame) {
+				_cur_frame++;
+				renderFrame(_cur_frame);
+			} else if (_cur_frame > _to_frame) {
+				_cur_frame--;
+				renderFrame(_cur_frame);
+			}
+			_frame_time = _animation->frameTime();
+		}
+	}
+
+	return false;
+}
+
+bool SafeControl::onMouseMove(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) {
+	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
+		return false;
+
+	if (_rectangle.contains(backgroundImageSpacePos)) {
+		int32 mR = backgroundImageSpacePos.sqrDist(_center);
+		if (mR <= _radius_outer_sq && mR >= _radius_inner_sq) {
+			_engine->getCursorManager()->changeCursor(CursorIndex_Active);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool SafeControl::onMouseUp(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) {
+	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
+		return false;
+
+	if (_rectangle.contains(backgroundImageSpacePos)) {
+		int32 mR = backgroundImageSpacePos.sqrDist(_center);
+		if (mR <= _radius_outer_sq && mR >= _radius_inner_sq) {
+
+			Common::Point tmp = backgroundImageSpacePos - _center;
+
+			float dd = atan2(tmp.x, tmp.y) * 57.29578;
+
+			int16 dp_state = 360 / _num_states;
+
+			int16 m_state = (_num_states - ((((int16)dd + 540) % 360) / dp_state)) % _num_states;
+
+			int16 tmp2 = (m_state + _cur_state - _zero_pointer + _num_states - 1 ) % _num_states;
+
+			_cur_frame = (_cur_state + _num_states - _start_pointer) % _num_states;
+
+			_cur_state = (_num_states * 2 + tmp2) % _num_states;
+
+			_to_frame = (_cur_state + _num_states - _start_pointer) % _num_states;
+
+			_engine->getScriptManager()->setStateValue(_key, _cur_state);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/scripting/controls/safe_control.h b/engines/zvision/scripting/controls/safe_control.h
new file mode 100644
index 0000000000..2477d8c26d
--- /dev/null
+++ b/engines/zvision/scripting/controls/safe_control.h
@@ -0,0 +1,71 @@
+/* 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 ZVISION_SAFE_CONTROL_H
+#define ZVISION_SAFE_CONTROL_H
+
+#include "zvision/scripting/control.h"
+
+#include "common/list.h"
+#include "common/rect.h"
+
+
+namespace ZVision {
+
+class ZorkAVIDecoder;
+class MetaAnimation;
+
+class SafeControl : public Control {
+public:
+	SafeControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream);
+	~SafeControl();
+
+private:
+	int16  _num_states;
+	int16  _cur_state;
+	MetaAnimation *_animation;
+	Common::Point _center;
+	Common::Rect _rectangle;
+	int16  _radius_inner;
+	int32  _radius_inner_sq;
+	int16  _radius_outer;
+	int32  _radius_outer_sq;
+	int16  _zero_pointer;
+	int16  _start_pointer;
+	int16  _cur_frame;
+	int16  _to_frame;
+	int32  _frame_time;
+
+	int16 _lastRenderedFrame;
+
+public:
+	bool onMouseUp(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos);
+	bool onMouseMove(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos);
+	bool process(uint32 deltaTimeInMillis);
+
+private:
+	void renderFrame(uint frameNumber);
+};
+
+} // End of namespace ZVision
+
+#endif