1/*
2	File:		MBCBoardView.h
3	Contains:	Displays and manipulates an OpenGL chess board
4	Copyright:	� 2002-2012 by Apple Inc., all rights reserved.
5
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30	The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
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44*/
45
46#import "MBCBoard.h"
47#import <sys/time.h>
48
49struct MBCColor {
50    GLfloat	color[4];
51
52	operator GLfloat *() { return color; }
53
54	NSColor *	GetColor() const;
55	void		SetColor(NSColor * newColor);
56};
57
58struct MBCPosition {
59    GLfloat 	pos[3];
60
61	operator GLfloat *() 				{ return pos; 		}
62	GLfloat & operator[](int i) 		{ return pos[i];	}
63	GLfloat   operator[](int i) const 	{ return pos[i];	}
64	float     FlatDistance(const MBCPosition & other)
65		{
66			return hypot(pos[0]-other[0], pos[2]-other[2]);
67		}
68};
69
70MBCPosition operator-(const MBCPosition & a, const MBCPosition & b);
71
72extern MBCPieceCode gInHandOrder[];
73const float kInHandPieceX 		= 51.0f;
74const float kInHandPieceZOffset	=  3.0f;
75const float	kInHandPieceSize	=  8.0f;
76const float	kPromotionPieceX	= 50.0f;
77const float kPromotionPieceZ	= 35.0f;
78const float kBoardRadius		= 40.0f;
79const float kBorderWidth		=  6.25f;
80const float kMinElevation		= 10.0f;
81const float kMaxElevation		= 80.0f;
82
83@class MBCInteractivePlayer;
84@class MBCDrawStyle;
85@class MBCBoardWin;
86
87@interface MBCBoardView : NSOpenGLView
88{
89    MBCBoardWin *         fController;
90    MBCInteractivePlayer *fInteractive;
91    MBCBoard *            fBoard;
92    MBCSquare             fPickedSquare;
93    MBCPiece              fSelectedPiece;
94    MBCSquare             fSelectedSquare;
95    MBCSquare             fSelectedDest;
96    MBCPosition           fSelectedPos;
97    MBCPosition           fLastSelectedPos;
98    float                 fRawAzimuth;
99    NSPoint               fOrigMouse;
100    NSPoint               fCurMouse;
101    struct timeval		    fLastRedraw;
102@public
103	float					fAzimuth;
104	float					fElevation;
105	float					fBoardReflectivity;
106	float					fLabelIntensity;
107	float					fAmbient;
108	MBCDrawStyle	*		fBoardDrawStyle[2];
109	MBCDrawStyle	*		fPieceDrawStyle[2];
110	MBCDrawStyle 	*		fBorderDrawStyle;
111	MBCDrawStyle 	*		fSelectedPieceDrawStyle;
112	GLfloat					fLightPos[4];
113@private
114	GLuint					fNumberTextures[8];
115	GLuint					fLetterTextures[8];
116	int						fMaxFSAA;
117	int						fCurFSAA;
118	int						fLastFSAASize;
119	bool					fNeedStaticModels;
120	bool					fIsPickingFormat;
121	bool					fIsFloating;
122	bool					fWantMouse;
123	bool					fNeedPerspective;
124	bool					fInAnimation;
125	bool					fInBoardManipulation;
126	MBCVariant				fVariant;
127	MBCSide					fSide;
128	MBCSide					fPromotionSide;
129	NSDictionary *			fBoardAttr;
130	NSDictionary *			fPieceAttr;
131	NSString *				fBoardStyle;
132	NSString *				fPieceStyle;
133	MBCMove	*				fHintMove;
134	MBCMove	*				fLastMove;
135	NSCursor *				fHandCursor;
136	NSCursor *				fArrowCursor;
137	MBCPiece				fLastPieceDrawn;
138	char					fKeyBuffer;
139	float					fAnisotropy;
140	GLint					fNumSamples;
141    NSTrackingArea *       fTrackingArea;
142}
143
144//
145// Basic view routines
146//
147- (id) initWithFrame:(NSRect)rect;
148- (void) awakeFromNib;
149- (void) drawRect:(NSRect)rect;
150
151- (void) startGame:(MBCVariant)variant playing:(MBCSide) side;
152- (void) drawNow;			// Redraw immediately
153- (void) profileDraw;		// Redraw in a tight loop
154- (void) needsUpdate;		// Perspective changed
155- (void) endGame;     		// Clean up the previous game
156- (void) startAnimation;	// Start animation
157- (void) animationDone;		// Animation finished
158
159//
160// Fall back to less memory hungry graphics format
161//
162- (void) pickPixelFormat:(BOOL)afterFailure;
163
164//
165// Change textures
166//
167- (void) setStyleForBoard:(NSString *)boardStyle pieces:(NSString *)pieceStyle;
168
169//
170// Selection manipulation
171//
172- (void) selectPiece:(MBCPiece)piece at:(MBCSquare)square;
173- (void) selectPiece:(MBCPiece)piece at:(MBCSquare)square to:(MBCSquare)dest;
174- (void) moveSelectionTo:(MBCPosition *)position;
175- (void) unselectPiece;
176- (void) clickPiece;
177
178//
179// Show hints and last moves
180//
181- (void) showMoveAsHint:(MBCMove *)move;
182- (void) showMoveAsLast:(MBCMove *)move;
183- (void) hideMoves;
184
185//
186// Translate between squares and positions
187//
188- (MBCSquare) 	positionToSquare:(const MBCPosition *)position;
189- (MBCSquare) 	positionToSquareOrRegion:(const MBCPosition *)position;
190- (MBCPosition)	squareToPosition:(MBCSquare)square;
191- (void) snapToSquare:(MBCPosition *)position;
192- (MBCSide) 	facing;			// What player are we facing?
193- (BOOL) 		facingWhite;	// Are we facing white?
194
195//
196// Pass mouse clicks on to interactive player?
197//
198- (void) wantMouse:(BOOL)wantIt;
199
200@end
201
202// Local Variables:
203// mode:ObjC
204// End:
205