97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef ZVISION_LEVER_CONTROL_H
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#define ZVISION_LEVER_CONTROL_H
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#include "common/list.h"
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#include "common/path.h"
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#include "common/rect.h"
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#include "math/vector2d.h"
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#include "zvision/scripting/control.h"
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namespace Video {
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class VideoDecoder;
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}
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namespace ZVision {
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// Only used in Zork Nemesis, handles draggable levers (te2e, tm7e, tp2e, tt2e, tz2e)
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class LeverControl : public Control {
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public:
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LeverControl(ZVision *engine, uint32 key, Common::SeekableReadStream &stream);
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~LeverControl() override;
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private:
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struct PathSegment {
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PathSegment(uint a, uint t) : angle(Math::deg2rad<float>(a)), toFrame(t), direction(cos(angle), -sin(angle)) {}
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float angle; // Radians
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uint toFrame;
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Math::Vector2d direction; // NB unit vector upon initialisation
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float distance = 1.0f;
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};
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struct FrameInfo {
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Common::Rect hotspot;
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Common::List<PathSegment> paths;
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Common::List<uint> returnRoute;
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};
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private:
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Video::VideoDecoder *_animation;
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int _cursor;
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Common::Rect _animationCoords;
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bool _mirrored;
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uint _frameCount;
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uint _startFrame;
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Common::Point _hotspotDelta;
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FrameInfo *_frameInfo;
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uint _currentFrame;
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uint _lastRenderedFrame;
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bool _mouseIsCaptured;
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bool _isReturning;
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Common::Point _gripOffset;
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Common::List<uint>::iterator _returnRoutesCurrentProgress;
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uint _returnRoutesCurrentFrame;
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const uint8 _returnFramePeriod = 60; // milliseconds
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uint32 _accumulatedTime;
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public:
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bool onMouseDown(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) override;
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bool onMouseUp(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) override;
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bool onMouseMove(const Common::Point &screenSpacePos, const Common::Point &backgroundImageSpacePos) override;
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bool process(uint32 deltaTimeInMillis) override;
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private:
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void parseLevFile(const Common::Path &fileName);
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void renderFrame(uint frameNumber);
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void getLevParams(const Common::String &inputStr, Common::String ¶meter, Common::String &values);
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uint getNextFrame(Common::Point &deltaPos);
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};
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} // End of namespace ZVision
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#endif
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