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engines/gnap/gamesys.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 GNAP_GAMESYS_H
+#define GNAP_GAMESYS_H
+
+#include "gnap/gnap.h"
+#include "gnap/resource.h"
+#include "common/array.h"
+#include "common/rect.h"
+#include "graphics/surface.h"
+
+namespace Gnap {
+
+const int kMaxSequenceItems = 40;
+const int kMaxSpriteDrawItems = 30;
+const int kMaxSoundIds = 50;
+const int kMaxSeqItems = 50;
+const int kMaxUpdRects = 20;
+const int kMaxGfxItems = 50;
+const int kMaxAnimations = 12;
+
+enum {
+	kSeqNone		= 0x00,
+	kSeqScale		= 0x01, // Enable scaling
+	kSeqLoop		= 0x02, // Loop
+	kSeqUnk			= 0x04,	// Unknown
+	kSeqSyncWait	= 0x08,	// Start if other sequence is done
+	kSeqSyncExists	= 0x20	// Start if other sequence exists
+};
+
+struct Sequence {
+	int32 _sequenceId;
+	int32 _id;
+	int32 _sequenceId2;
+	int32 _id2;
+	uint32 _flags;
+	int32 _totalDuration;
+	int16 _x, _y;
+};
+
+struct SpriteDrawItem {
+	int _id;
+	Common::Rect _rect;
+	Graphics::Surface *_surface;
+};
+
+struct RemoveSequenceItem {
+	int _sequenceId;
+	int _id;
+	bool _forceFrameReset;
+};
+
+struct RemoveSpriteDrawItem {
+	int _id;
+	Graphics::Surface *_surface;
+};
+
+struct GfxItem {
+	int _sequenceId;
+	int _id;
+	int _flags;
+	SequenceAnimation *_animation;
+	int _currFrameNum;
+	int _delayTicks;
+	bool _updFlag;
+	int _updRectsCount;
+	Graphics::Surface *_surface;
+	Common::Rect _updRects[kMaxUpdRects];
+	SequenceFrame _prevFrame;
+	SequenceFrame _currFrame;
+	void testUpdRect(const Common::Rect &updRect);
+};
+
+struct Animation {
+	int _sequenceId;
+	int _id;
+	int _status;
+};
+
+class GameSys {
+public:
+	GameSys(GnapEngine *vm);
+	~GameSys();
+	void insertSequence(int sequenceId, int id, int sequenceId2, int id2, int flags, int totalDuration, int16 x, int16 y);
+	void insertDirtyRect(const Common::Rect &rect);
+	void removeSequence(int sequenceId, int id, bool resetFl);
+	void invalidateGrabCursorSprite(int id, Common::Rect &rect, Graphics::Surface *surface1, Graphics::Surface *surface2);
+	void requestClear2(bool resetFl);
+	void requestClear1();
+	void requestRemoveSequence(int sequenceId, int id);
+	void waitForUpdate();
+	int isSequenceActive(int sequenceId, int id);
+	void setBackgroundSurface(Graphics::Surface *surface, int a4, int a5, int a6, int a7);
+	void setScaleValues(int a1, int a2, int a3, int a4);
+	void insertSpriteDrawItem(Graphics::Surface *surface, int x, int y, int id);
+	void removeSpriteDrawItem(Graphics::Surface *surface, int id);
+	void drawSpriteToBackground(int x, int y, int resourceId);
+	Graphics::Surface *allocSurface(int width, int height);
+	Graphics::Surface *createSurface(int resourceId);
+	void drawSpriteToSurface(Graphics::Surface *surface, int x, int y, int resourceId);
+	void drawTextToSurface(Graphics::Surface *surface, int x, int y, byte r, byte g, byte b, const char *text);
+	int getTextHeight(const char *text);
+	int getTextWidth(const char *text);
+	void fillSurface(Graphics::Surface *surface, int x, int y, int width, int height, byte r, byte g, byte b);
+	void setAnimation(int sequenceId, int id, int animationIndex);
+	int getAnimationStatus(int animationIndex);
+	int getSpriteWidthById(int resourceId);
+	int getSpriteHeightById(int resourceId);
+	Graphics::Surface *loadBitmap(int resourceId);
+	void drawBitmap(int resourceId);
+public:
+	GnapEngine *_vm;
+
+	Common::Array<Common::Rect> _dirtyRects;
+
+	SpriteDrawItem _newSpriteDrawItems[kMaxSpriteDrawItems];
+	int _newSpriteDrawItemsCount;
+
+	RemoveSequenceItem _removeSequenceItems[kMaxSequenceItems];
+	int _removeSequenceItemsCount;
+
+	RemoveSpriteDrawItem _removeSpriteDrawItems[kMaxSpriteDrawItems];
+	int _removeSpriteDrawItemsCount;
+
+	int _grabSpriteId;
+	Common::Rect _grabSpriteRect;
+	bool _grabSpriteChanged;
+	Graphics::Surface *_grabSpriteSurface1, *_grabSpriteSurface2;
+
+	bool _reqRemoveSequenceItem;
+	int _removeSequenceItemSequenceId, _removeSequenceItemValue;
+
+	Common::Array<int> _soundIds;
+
+	////////////////////////////////////////////////////////////////////////////
+
+	Common::Array<Sequence> _seqItems;
+	Common::Array<Sequence> _fatSequenceItems;
+
+	GfxItem _gfxItems[kMaxGfxItems];
+	int _gfxItemsCount;
+
+	Animation _animations[kMaxAnimations];
+	int _animationsCount;
+
+	int _backgroundImageValue3, _backgroundImageValue1;
+	int _backgroundImageValue4, _backgroundImageValue2;
+
+	int32 _gameSysClock, _lastUpdateClock;
+	bool _animationsDone;
+
+
+	Graphics::Surface *_backgroundSurface;
+	Graphics::Surface *_frontSurface;
+	Common::Rect _screenRect;
+
+	Sequence *seqFind(int sequenceId, int id, int *outIndex);
+	int seqLocateGfx(int sequenceId, int id, int *outGfxIndex);
+	void seqInsertGfx(int index, int duration);
+	void seqRemoveGfx(int sequenceId, int id);
+	bool updateSequenceDuration(int sequenceId, int id, int *outDuration);
+	void updateAnimationsStatus(int sequenceId, int id);
+
+	void restoreBackgroundRect(const Common::Rect &rect);
+
+	void blitSurface32(Graphics::Surface *destSurface, int x, int y, Graphics::Surface *sourceSurface,
+		Common::Rect &sourceRect, bool transparent);
+	void blitSprite32(Graphics::Surface *destSurface, int x, int y, byte *sourcePixels,
+		int sourceWidth, Common::Rect &sourceRect, uint32 *sourcePalette, bool transparent);
+	void blitSpriteScaled32(Graphics::Surface *destSurface, Common::Rect &frameRect,
+		Common::Rect &destRect, byte *sourcePixels, int sourceWidth, Common::Rect &sourceRect, uint32 *sourcePalette);
+
+	void seqDrawStaticFrame(Graphics::Surface *surface, SequenceFrame &frame, Common::Rect *subRect);
+	void seqDrawSpriteFrame(SpriteResource *spriteResource, SequenceFrame &frame, Common::Rect *subRect);
+
+	void drawSprites();
+	void updateRect(const Common::Rect &r);
+	void updateScreen();
+
+	void handleReqRemoveSequenceItem();
+	void handleReqRemoveSequenceItems();
+	void handleReqRemoveSpriteDrawItems();
+	void fatUpdateFrame();
+	void fatUpdate();
+	void updatePlaySounds();
+
+};
+
+bool intersectRect(Common::Rect &intersectingRect, const Common::Rect &r1, const Common::Rect &r2);
+
+} // End of namespace Gnap
+
+#endif // GNAP_GAMESYS_H