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engines/sherlock/scalpel/tsage/logo.h

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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/>.
+ *
+ */
+
+#ifndef SHERLOCK_SCALPEL_TSAGE_LOGO_H
+#define SHERLOCK_SCALPEL_TSAGE_LOGO_H
+
+#include "common/scummsys.h"
+#include "common/array.h"
+#include "common/file.h"
+#include "common/list.h"
+#include "common/str.h"
+#include "common/str-array.h"
+#include "common/util.h"
+#include "graphics/surface.h"
+#include "sherlock/scalpel/tsage/resources.h"
+#include "sherlock/screen.h"
+
+namespace Sherlock {
+namespace Scalpel {
+
+class ScalpelEngine;
+
+namespace TsAGE {
+
+class ObjectSurface : public Surface {
+public:
+	Common::Point _centroid;
+public:
+	ObjectSurface() : Surface() {}
+	~ObjectSurface() override {}
+};
+
+class Visage {
+private:
+	Common::SeekableReadStream *_stream;
+
+	/**
+	 * Translates a raw image resource into a graphics surface
+	 */
+	void surfaceFromRes(ObjectSurface &s);
+public:
+	static TLib *_tLib;
+	int _resNum;
+	int _rlbNum;
+public:
+	Visage();
+	~Visage();
+
+	/**
+	 * Set the visage number
+	 */
+	void setVisage(int resNum, int rlbNum = 9999);
+
+	/**
+	 * Clear the visage
+	 */
+	void clear();
+
+	/**
+	 * Get a frame from the visage
+	 */
+	void getFrame(ObjectSurface &s, int frameNum);
+
+	/**
+	 * Return the number of frames
+	 */
+	int getFrameCount() const;
+
+	/**
+	 * Returns whether the visage is loaded
+	 */
+	bool isLoaded() const;
+};
+
+class Object {
+private:
+	Visage _visage;
+	uint32 _updateStartFrame;
+	bool _isAnimating;
+	bool _finished;
+	uint32 _walkStartFrame;
+	int _angle;
+	int _changeCtr;
+	int _majorDiff, _minorDiff;
+	Common::Point _moveDelta;
+	Common::Point _moveSign;
+
+	/**
+	 * Return the next frame when the object is animating
+	 */
+	int changeFrame();
+
+	/**
+	 * Gets the next frame in the sequence
+	 */
+	int getNewFrame();
+
+	/**
+	 * Calculate the angle between the current position and a designated destination
+	 */
+	void calculateMoveAngle();
+
+	/**
+	 * Handle any object movement
+	 */
+	void move();
+
+	/**
+	 * Returns whether not to make any movement
+	 */
+	bool dontMove() const;
+
+	/**
+	 * Ends any current movement
+	 */
+	void endMove();
+public:
+	static ScalpelEngine *_vm;
+	Common::Point _position;
+	Common::Point _destination;
+	Common::Rect _oldBounds;
+	int _frame;
+	int _numFrames;
+	int _frameChange;
+public:
+	Object();
+
+	/**
+	 * Load the data for the object
+	 */
+	void setVisage(int visage, int strip);
+
+	/**
+	 * Sets whether the object is animating
+	 */
+	void setAnimMode(bool isAnimating);
+
+	/**
+	 * Starts an object moving to a given destination
+	 */
+	void setDestination(const Common::Point &pt);
+
+	/**
+	 * Returns true if an animation is ended
+	 */
+	bool isAnimEnded() const;
+
+	/**
+	 * Return true if object is moving
+	 */
+	bool isMoving() const;
+
+	/**
+	 * Erase the area the object was previously drawn at, by restoring the background
+	 */
+	void erase();
+
+	/**
+	 * Update the frame
+	 */
+	void update();
+
+	/**
+	 * Remove an object from being displayed
+	 */
+	void remove() { _visage.clear(); }
+};
+
+struct AnimationFrame {
+	int	frame;
+	int	x;
+	int	y;
+};
+
+class Logo {
+private:
+	ScalpelEngine *_vm;
+	TLib _lib;
+	int _counter, _frameCounter;
+	bool _finished;
+	byte _originalPalette[Graphics::PALETTE_SIZE];
+	byte _palette1[Graphics::PALETTE_SIZE];
+	byte _palette2[Graphics::PALETTE_SIZE];
+	byte _palette3[Graphics::PALETTE_SIZE];
+	Object _objects[4];
+	uint _waitFrames;
+	uint32 _waitStartFrame;
+	int _animateObject;
+	uint32 _animateStartFrame;
+	uint _animateFrameDelay;
+	const AnimationFrame *_animateFrames;
+	uint _animateFrame;
+
+	Logo(ScalpelEngine *vm);
+	~Logo();
+
+	void nextFrame();
+
+	bool finished() const;
+
+	/**
+	 * Wait for a number of frames. Note that the frame count in _events is
+	 * not the same as the number of calls to nextFrame().
+	 */
+	void waitFrames(uint frames);
+
+	/**
+	 * Start an animation sequence. Used for sequences that are described
+	 * one frame at a time because they do unusual things, or run at
+	 * unusual rates.
+	 */
+	void startAnimation(uint object, uint frameDelay, const AnimationFrame *frames);
+
+	/**
+	 * Load the background for the scene
+	 */
+	void loadBackground();
+
+	/**
+	 * Fade from the current palette to a new one
+	 */
+	void fade(const byte palette[Graphics::PALETTE_SIZE], int step = 6);
+public:
+	static bool show(ScalpelEngine *vm);
+};
+
+} // end of namespace TsAGE
+} // end of namespace Scalpel
+} // end of namespace Sherlock
+
+#endif