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大概一年半以前闲着无聊，于是就写了一个俄罗斯方块自娱自乐，程序运行如下图1所示：
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完整的source code可以在附件下载。该程序使用WTL实现的，代码本身非常简单，无非是一些碰撞，变形等情况的判断调整。比较有意思的是程序使用了Factory Method用于创建方块，控制方块的变形。创建方块部分的设计类图如下所示：
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; v* s- P% ?9 JFactory的code如下：
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/*************************************
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0 w3 F5 E/ `/ G! s* author:hgf_starlovecpp@hotmail.com8 J! \& o0 Q; G# [" e+ d4 |
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* version:1.0/ \# V0 W( y9 i. q
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* description: just for fun4 `5 W- y# Q' L' R a% |
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* todo: hard code exists need to fixed
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**************************************/! ?8 X9 B9 @" Z3 l1 e
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#pragma once: W# u) {# @# d& r
#include <map>
$ j% H% M5 A$ }0 G: n4 B#include "Tetris.h"' ~: d7 Q& `; {4 n
#include "OneTetris.h"0 ?/ Y N: W/ |7 R. d
#include "TwoTetris.h"8 e% M: q8 a- g0 n! O
#include "ThreeTetris.h"6 k% d. u N* p8 Z' d
#include "FourTetris.h"
% ?+ `: A1 b: z5 x! I4 q" B: d: p#include "FiveTetris.h"; y- g& D, t a( E7 @
#include "SixTetris.h"
0 V7 G4 C& B x# A9 F' L1 C2 v#include "SevenTetris.h"8 k: i$ D: h) f' N: X: R' h7 n
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class TetrisFactory% ^ y0 j4 q# R$ v* s
{
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K5 y1 w" [& X% d. e+ U9 H% CTetrisFactory(void)0 n! ^# s% M& R. @
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{
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( b: x* k7 e: k0 y2 c% mm_sel2TetrisMap[0] = &TetrisFactory::CreateOneTetris;
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1 a* w8 I( d# k, S/ b7 Pm_sel2TetrisMap[1] = &TetrisFactory::CreateTwoTetris;
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m_sel2TetrisMap[2] = &TetrisFactory::CreateThreeTetris;
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m_sel2TetrisMap[3] = &TetrisFactory::CreateFourTetris;3 ^$ R* B: q7 i) R2 m! M3 F0 \8 Y
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m_sel2TetrisMap[4] = &TetrisFactory::CreateFiveTetris;) n9 }1 S% {$ h8 v
* D" I+ ~& S$ c& Jm_sel2TetrisMap[5] = &TetrisFactory::CreateSixTetris;
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m_sel2TetrisMap[6] = &TetrisFactory::CreateSevenTetris;
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~TetrisFactory(void)
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Tetris* CreateTetris(char sel)
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7 P( E( B9 Q% K0 p return (this->*(m_sel2TetrisMap.find(sel)->second))();- ^1 U3 l) {- ~- }/ x* N& B1 }
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Tetris* CreateOneTetris()
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static OneTetris tetris;, w9 Y, A/ ~$ d o8 m4 T; B
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tetris.InitPos();$ N* B. Z' F a0 K
return & tetris;
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Tetris* CreateTwoTetris()9 R2 i+ [* Z; @, n' D2 d
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{
2 x3 I. ^: g, A' G) A9 o static TwoTetris tetris; W& K, f( O! u( x
% |% } o1 R- ~tetris.InitPos();
/ `8 m5 h% {$ |4 p ` return & tetris;9 a3 O7 X- O+ I
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}
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^1 s( Y1 r) v- |6 X& @Tetris* CreateThreeTetris()
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{
4 O/ P. ?& @% s. [0 |1 e static ThreeTetris tetris;7 y7 t5 F* X0 Q
, a0 A! h+ ?2 i+ L' htetris.InitPos();
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3 a( g, ~* K I& `- Breturn & tetris;
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Tetris* CreateFourTetris()
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- }, [* V' m6 s; z) R+ h static FourTetris tetris;& m! ^ L" m" i8 v6 N" ^
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tetris.InitPos();6 h! ]- G5 i6 f5 k; |
return & tetris;/ X7 a% ^, i! m
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0 |' {" D- Q* F9 M8 kTetris* CreateFiveTetris()
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static FiveTetris tetris;# {/ ]# P# O9 B
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tetris.InitPos();
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% y- W, a( w @* C6 u6 `Tetris* CreateSixTetris()
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{
3 w' p) l3 Z$ O- B7 f' { static SixTetris tetris;
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+ U# }* T0 T+ h$ U* ^" Stetris.InitPos();
" @/ ~" n, E& D, C; \& `& y* R return & tetris;
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5 o8 {/ B, a T. STetris* CreateSevenTetris()
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static SevenTetris tetris;
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tetris.InitPos();% ^, J" t/ [* v3 X* o: M- ]1 D
return & tetris;/ |5 u1 C3 f9 D$ M$ ?; m
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private:
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typedef Tetris*(TetrisFactory::*PMA)();
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std::map<char,PMA> m_sel2TetrisMap;1 b5 |; _0 w4 i+ H1 {' k
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};; C0 i# f6 p: o* m$ \
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有兴趣的朋友可以下下来改改玩玩。- z+ Z8 E) W1 ~+ B' X1 L8 S4 r
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That’s all!9 u1 l2 g5 ^" t& {* v8 V9 J* H: o( g
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Peter
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[ 本帖最后由 peterhu 于 2009-5-20 09:51 编辑 ] |
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发表于 2009-5-11 14:01:46
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