-
Notifications
You must be signed in to change notification settings - Fork 4
/
TileU.pas
420 lines (356 loc) · 9.05 KB
/
TileU.pas
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
unit TileU;
interface
uses
System.Math, System.UITypes, System.SysUtils, System.StrUtils;
type
TIncScoreEvent = procedure(const aScore: Integer) of object;
TTile = class
strict private
const
COLOR_DEFAULT: TColor = $B4C0CD;
COLORS: array [1 .. 11] of TColor = ($DAE4EE, $C8E0ED, $79B1F2, $6395F5, $5F7CF6, $3B5EF6, $72CFED, $61CCED, $50C8ED, $3FC5ED, $2EC2ED);
BASE: Integer = 2;
DEFAULT_POWER: Integer = 0;
INITIAL_POWER: Integer = 1;
MAX_POWER: Integer = 11;
private
FChanged: Boolean;
FCol: Integer;
FDownTile: TTile;
FLeftTile: TTile;
FOnIncScore: TIncScoreEvent;
FPower: Integer;
FRightTile: TTile;
FRow: Integer;
FUpTile: TTile;
procedure DoMerge(aTile: TTile);
function GetContrastColor(aColor: TColor): TColor;
procedure Clear;
procedure DoOnIncScore(const aScore: Integer);
function GetCanMerge: Boolean;
function GetCaption: String; inline;
function GetColor: TColor;
function GetValue: Integer;
function HasSamePower(const aTile: TTile): Boolean;
function DoMove(aTile: TTile): Boolean;
procedure MoveDown;
procedure MoveLeft;
procedure MoveRight;
procedure MoveUp;
procedure MergeDown;
procedure MergeLeft;
procedure MergeRight;
procedure MergeUp;
procedure RecursiveMergeDown;
procedure RecursiveMergeLeft;
procedure RecursiveMergeRight;
procedure RecursiveMergeUp;
procedure RecursiveMoveDown;
procedure RecursiveMoveLeft;
procedure RecursiveMoveRight;
procedure RecursiveMoveUp;
function GetTextColor: TColor;
function HasDownTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function HasLeftTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function HasRightTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function HasUpTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function IsDownTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function IsLeftTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function IsRightTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function IsUpTile: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
public
constructor Create(const aRow: Integer; const aCol: Integer); overload;
constructor Create(const aTile: TTile); overload;
procedure AlignDown;
procedure AlignLeft;
procedure AlignRight;
procedure AlignUp;
procedure Fill;
function IsMax: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function IsEmpty: Boolean; {$IFNDEF DEBUG}inline; {$ENDIF}
function ToString: String; override;
property CanMerge: Boolean read GetCanMerge;
property Caption: String read GetCaption;
property TilePower: Integer read FPower write FPower;
property Changed: Boolean read FChanged write FChanged;
property Col: Integer read FCol write FCol;
property Color: TColor read GetColor;
property DownTile: TTile read FDownTile write FDownTile;
property LeftTile: TTile read FLeftTile write FLeftTile;
property RightTile: TTile read FRightTile write FRightTile;
property Row: Integer read FRow write FRow;
property UpTile: TTile read FUpTile write FUpTile;
property Value: Integer read GetValue;
property OnIncScore: TIncScoreEvent read FOnIncScore write FOnIncScore;
property TextColor: TColor read GetTextColor;
end;
implementation
uses
VCL.GraphUtil;
constructor TTile.Create(const aRow: Integer; const aCol: Integer);
begin
FPower := DEFAULT_POWER;
FRow := aRow;
FCol := aCol;
FLeftTile := nil;
FRightTile := nil;
FUpTile := nil;
FDownTile := nil;
FOnIncScore := nil;
end;
constructor TTile.Create(const aTile: TTile);
begin
FPower := aTile.FPower;
FRow := aTile.FRow;
FCol := aTile.FCol;
FLeftTile := aTile.FLeftTile;
FRightTile := aTile.FRightTile;
FUpTile := aTile.FUpTile;
FDownTile := aTile.FDownTile;
FOnIncScore := aTile.FOnIncScore;
end;
procedure TTile.AlignDown;
begin
if not IsDownTile then
exit;
RecursiveMoveDown;
RecursiveMergeDown;
RecursiveMoveDown;
end;
procedure TTile.AlignLeft;
begin
if not IsLeftTile then
exit;
RecursiveMoveLeft;
RecursiveMergeLeft;
RecursiveMoveLeft;
end;
procedure TTile.AlignRight;
begin
if not IsRightTile then
exit;
RecursiveMoveRight;
RecursiveMergeRight;
RecursiveMoveRight;
end;
procedure TTile.AlignUp;
begin
if not IsUpTile then
exit;
RecursiveMoveUp;
RecursiveMergeUp;
RecursiveMoveUp;
end;
procedure TTile.Clear;
begin
FPower := DEFAULT_POWER;
FChanged := True;
end;
procedure TTile.DoMerge(aTile: TTile);
begin
if not Assigned(aTile) then
exit;
if aTile.IsEmpty then
exit;
if FPower <> aTile.TilePower then
exit;
Inc(FPower);
aTile.Clear;
DoOnIncScore(Value);
end;
function TTile.DoMove(aTile: TTile): Boolean;
begin
if (not Assigned(aTile)) or (IsEmpty or (not aTile.IsEmpty)) then
exit(false);
Result := True;
aTile.TilePower := FPower;
Clear;
end;
procedure TTile.DoOnIncScore(const aScore: Integer);
begin
FChanged := True;
if Assigned(FOnIncScore) then
FOnIncScore(aScore);
end;
procedure TTile.Fill;
begin
FPower := INITIAL_POWER;
FChanged := false;
end;
function TTile.GetCanMerge: Boolean;
begin
Result := IsEmpty;
if (not Result) and HasLeftTile then
Result := HasSamePower(FLeftTile);
if (not Result) and HasRightTile then
Result := HasSamePower(FRightTile);
if (not Result) and HasUpTile then
Result := HasSamePower(FUpTile);
if (not Result) and HasDownTile then
Result := HasSamePower(FDownTile);
end;
function TTile.GetCaption: String;
begin
Result := IfThen(IsEmpty, String.Empty, Value.ToString);
end;
function TTile.GetColor: TColor;
begin
if IsEmpty then
Result := COLOR_DEFAULT
else
Result := COLORS[FPower];
end;
function TTile.GetContrastColor(aColor: TColor): TColor;
var
Hue, Luminance, Saturation: Word;
begin
// convert the color in hue, luminance, saturation
ColorRGBToHLS(aColor, Hue, Luminance, Saturation);
if (Luminance < 120) or ((Luminance = 120) and (Hue > 120)) then
Result := TColors.White
else
Result := TColors.Black;
end;
function TTile.GetTextColor: TColor;
begin
Result := GetContrastColor(Color);
end;
function TTile.GetValue: Integer;
begin
Result := Round(Power(BASE, FPower));
end;
function TTile.HasDownTile: Boolean;
begin
Result := Assigned(FDownTile);
end;
function TTile.HasLeftTile: Boolean;
begin
Result := Assigned(FLeftTile);
end;
function TTile.HasRightTile: Boolean;
begin
Result := Assigned(FRightTile);
end;
function TTile.HasSamePower(const aTile: TTile): Boolean;
begin
Result := false;
if Assigned(aTile) then
Result := FPower = aTile.TilePower;
end;
function TTile.HasUpTile: Boolean;
begin
Result := Assigned(FUpTile);
end;
function TTile.IsDownTile: Boolean;
begin
Result := not HasDownTile;
end;
function TTile.IsEmpty: Boolean;
begin
Result := FPower = DEFAULT_POWER;
end;
function TTile.IsLeftTile: Boolean;
begin
Result := not HasLeftTile;
end;
function TTile.IsMax: Boolean;
begin
Result := FPower >= MAX_POWER;
end;
function TTile.IsRightTile: Boolean;
begin
Result := not HasRightTile;
end;
function TTile.IsUpTile: Boolean;
begin
Result := not HasUpTile;
end;
procedure TTile.MergeDown;
begin
DoMerge(FUpTile);
end;
procedure TTile.MergeLeft;
begin
DoMerge(FRightTile);
end;
procedure TTile.MergeRight;
begin
DoMerge(FLeftTile);
end;
procedure TTile.MergeUp;
begin
DoMerge(FDownTile);
end;
procedure TTile.MoveDown;
begin
if DoMove(FDownTile) then
FDownTile.MoveDown;
end;
procedure TTile.MoveLeft;
begin
if DoMove(FLeftTile) then
FLeftTile.MoveLeft;
end;
procedure TTile.MoveRight;
begin
if DoMove(FRightTile) then
FRightTile.MoveRight;
end;
procedure TTile.MoveUp;
begin
if DoMove(FUpTile) then
FUpTile.MoveUp;
end;
procedure TTile.RecursiveMergeDown;
begin
MergeDown;
if HasUpTile then
FUpTile.RecursiveMergeDown;
end;
procedure TTile.RecursiveMergeLeft;
begin
MergeLeft;
if HasRightTile then
FRightTile.RecursiveMergeLeft;
end;
procedure TTile.RecursiveMergeRight;
begin
MergeRight;
if HasLeftTile then
FLeftTile.RecursiveMergeRight;
end;
procedure TTile.RecursiveMergeUp;
begin
MergeUp;
if HasDownTile then
FDownTile.RecursiveMergeUp;
end;
procedure TTile.RecursiveMoveDown;
begin
MoveDown;
if HasUpTile then
FUpTile.RecursiveMoveDown;
end;
procedure TTile.RecursiveMoveLeft;
begin
MoveLeft;
if HasRightTile then
FRightTile.RecursiveMoveLeft;
end;
procedure TTile.RecursiveMoveRight;
begin
MoveRight;
if HasLeftTile then
FLeftTile.RecursiveMoveRight;
end;
procedure TTile.RecursiveMoveUp;
begin
MoveUp;
if HasDownTile then
FDownTile.RecursiveMoveUp;
end;
function TTile.ToString: String;
begin
Result := Caption;
end;
end.