Initial commit

engines/zvision/scripting/controls/safe_control.cpp

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+/* 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/scummsys.h"
+#include "common/stream.h"
+#include "common/system.h"
+#include "common/tokenizer.h"
+#include "graphics/surface.h"
+#include "video/video_decoder.h"
+#include "zvision/zvision.h"
+#include "zvision/graphics/render_manager.h"
+#include "zvision/graphics/cursors/cursor_manager.h"
+#include "zvision/scripting/script_manager.h"
+#include "zvision/scripting/controls/safe_control.h"
+
+namespace ZVision {
+
+SafeControl::SafeControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream)
+	: Control(engine, key, CONTROL_SAFE) {
+	_statesCount = 0;
+	_curState = 0;
+	_animation = NULL;
+	_innerRaduis = 0;
+	_innerRadiusSqr = 0;
+	_outerRadius = 0;
+	_outerRadiusSqr = 0;
+	_zeroPointer = 0;
+	_startPointer = 0;
+	_targetFrame = 0;
+
+	// Loop until we find the closing brace
+	Common::String line = stream.readLine();
+	_engine->getScriptManager()->trimCommentsAndWhiteSpace(&line);
+	Common::String param;
+	Common::String values;
+	getParams(line, param, values);
+
+	while (!stream.eos() && !line.contains('}')) {
+		if (param.matchString("animation", true)) {
+			_animation = _engine->loadAnimation(Common::Path(values));
+			_animation->start();
+		} else if (param.matchString("rectangle", true)) {
+			int x;
+			int y;
+			int width;
+			int height;
+
+			if (sscanf(values.c_str(), "%d %d %d %d", &x, &y, &width, &height) == 4)
+				_rectangle = Common::Rect(x, y, width, height);
+		} else if (param.matchString("num_states", true)) {
+			_statesCount = atoi(values.c_str());
+		} else if (param.matchString("center", true)) {
+			int x;
+			int y;
+
+			if (sscanf(values.c_str(), "%d %d", &x, &y) == 2)
+				_center = Common::Point(x, y);
+		} else if (param.matchString("dial_inner_radius", true)) {
+			_innerRaduis = atoi(values.c_str());
+			_innerRadiusSqr = _innerRaduis * _innerRaduis;
+		} else if (param.matchString("radius", true)) {
+			_outerRadius = atoi(values.c_str());
+			_outerRadiusSqr = _outerRadius * _outerRadius;
+		} else if (param.matchString("zero_radians_offset", true)) {
+			_zeroPointer = atoi(values.c_str());
+		} else if (param.matchString("pointer_offset", true)) {
+			_startPointer = atoi(values.c_str());
+			_curState = _startPointer;
+		} else if (param.matchString("cursor", true)) {
+			// Not used
+		} else if (param.matchString("mirrored", true)) {
+			// Not used
+		} else if (param.matchString("venus_id", true)) {
+			_venusId = atoi(values.c_str());
+		}
+
+		line = stream.readLine();
+		_engine->getScriptManager()->trimCommentsAndWhiteSpace(&line);
+		getParams(line, param, values);
+	}
+
+	if (_animation)
+		_animation->seekToFrame(_curState);
+}
+
+SafeControl::~SafeControl() {
+	if (_animation)
+		delete _animation;
+
+}
+
+bool SafeControl::process(uint32 deltaTimeInMillis) {
+	if (_engine->getScriptManager()->getStateFlag(_key) & Puzzle::DISABLED)
+		return false;
+
+	if (_animation && _animation->getCurFrame() != _targetFrame && _animation->needsUpdate()) {
+		// If we're past the target frame, move back one
+		if (_animation->getCurFrame() > _targetFrame)
+			_animation->seekToFrame(_animation->getCurFrame() - 1);
+
+		const Graphics::Surface *frameData = _animation->decodeNextFrame();
+		if (_animation->getCurFrame() == _targetFrame)
+			_engine->getScriptManager()->setStateValue(_key, _curState);
+		if (frameData)
+			_engine->getRenderManager()->blitSurfaceToBkg(*frameData, _rectangle.left, _rectangle.top);
+	}
+
+	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 <= _outerRadiusSqr && mR >= _innerRadiusSqr) {
+			_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 <= _outerRadiusSqr && mR >= _innerRadiusSqr) {
+			setVenus();
+
+			Common::Point tmp = backgroundImageSpacePos - _center;
+
+			// Coverity complains about the order of arguments here,
+			// but changing that breaks the Zork Nemesis safe puzzle.
+			float dd = atan2((float)tmp.x, (float)tmp.y) * 57.29578;
+
+			int16 dp_state = 360 / _statesCount;
+
+			int16 m_state = (_statesCount - ((((int16)dd + 540) % 360) / dp_state)) % _statesCount;
+
+			int16 tmp2 = (m_state + _curState - _zeroPointer + _statesCount - 1) % _statesCount;
+
+			if (_animation)
+				_animation->seekToFrame((_curState + _statesCount - _startPointer) % _statesCount);
+
+			_curState = (_statesCount * 2 + tmp2) % _statesCount;
+
+			_targetFrame = (_curState + _statesCount - _startPointer) % _statesCount;
+			return true;
+		}
+	}
+	return false;
+}
+
+} // End of namespace ZVision