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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：
: k. s7 z* S' {' H1 Q图 1
- \! Q7 V4 G8 b( X; w1 W- S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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Factory的code如下：" @& r& x- R# ]% Y% x1 C
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/*************************************
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* author:hgf_starlovecpp@hotmail.com' Y1 }9 y" b0 s2 _( {& x
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* version:1.0
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* description: just for fun
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* todo: hard code exists need to fixed
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' V2 c1 t& e* i+ ]; u/ s1 H**************************************/* e/ v, ~- v! r8 U; T' K
* t! X& t T2 p+ b5 _#pragma once
6 A- G2 W6 w0 e4 @5 X5 W: g: N#include <map>
# b& ]1 g. f; |#include "Tetris.h"1 w$ X, R* O- a1 b) m& [
#include "OneTetris.h"
- J; G# v& I7 e- D% c#include "TwoTetris.h"& H9 q/ |8 H d% k
#include "ThreeTetris.h"$ e; Q$ c' v6 f4 k* u3 Y, W, ]$ U$ ~
#include "FourTetris.h"8 } U+ W8 R% y% M
#include "FiveTetris.h"
- D! y, U/ P& F9 m; |#include "SixTetris.h"3 S5 J: {+ D6 e4 y; q
#include "SevenTetris.h"
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" R. ]3 L" H4 ~2 mclass TetrisFactory
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TetrisFactory(void)8 M$ B* @" m- p! u3 X3 m s
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9 X3 z$ b8 A" A& I9 I% e% zm_sel2TetrisMap[0] = &TetrisFactory::CreateOneTetris;, _. c% B% z( ]; d7 ], r1 M
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m_sel2TetrisMap[1] = &TetrisFactory::CreateTwoTetris;
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m_sel2TetrisMap[2] = &TetrisFactory::CreateThreeTetris;
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. E3 F" j2 t8 m1 D( c1 Q" _m_sel2TetrisMap[3] = &TetrisFactory::CreateFourTetris;
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# b3 K& I3 l) C, R6 Cm_sel2TetrisMap[4] = &TetrisFactory::CreateFiveTetris;
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m_sel2TetrisMap[5] = &TetrisFactory::CreateSixTetris;' |- f' F; c# O% M
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m_sel2TetrisMap[6] = &TetrisFactory::CreateSevenTetris;
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}
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~TetrisFactory(void). y* o* B( ` F: \" M! L. B5 ~2 p) |
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Tetris* CreateTetris(char sel)$ U T! g4 Q' b( I, c" S' q
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4 F/ ~9 |/ H( r3 H return (this->*(m_sel2TetrisMap.find(sel)->second))();
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}
! [ h% n- q5 q4 rprivate:
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3 U* g/ X; q' ~% V9 hTetris* CreateOneTetris()
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{
8 ]; {& C! D% W4 O+ |6 A static OneTetris tetris;
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tetris.InitPos();
, F; s' J; [. S" J. k# @ return & tetris;& L" z6 D4 T; u% R; \9 m4 ?
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Tetris* CreateTwoTetris()) W W7 M- W0 o
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{
" C B' o0 _' Q, ?) @ static TwoTetris tetris;
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0 F/ y8 z/ |+ t1 o7 utetris.InitPos();( i/ T+ Z' p; y: T# _; _
return & tetris;
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Tetris* CreateThreeTetris()
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{
: E, ]. P+ a" {1 \ static ThreeTetris tetris;! J( y) _7 T- W) F6 {
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tetris.InitPos();6 j$ e- @5 V) j% p" p- \/ Y/ [
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return & tetris;
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}
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Tetris* CreateFourTetris()3 \5 n# ^6 o! ?$ V, A3 r
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static FourTetris tetris;! R( n2 i: x) n Q- A+ \/ a
M8 ?' S9 `; ~tetris.InitPos();7 `7 b# s' i1 k% R
return & tetris;; _- ?. @. L$ f n' O
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Tetris* CreateFiveTetris()
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static FiveTetris tetris;
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tetris.InitPos();$ Y. {8 v7 W3 C: C8 _
return & tetris;- B X* c/ H) o4 A+ O; m
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Tetris* CreateSixTetris()! ]* w# h X4 h- L" `: z
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% w; `% g) W8 @2 A6 X0 h" w static SixTetris tetris;! Q# F- z3 p7 y. a
3 ~2 `$ v; }; D$ j/ y9 M: Ttetris.InitPos();
k& P% E/ j7 @8 C% Q return & tetris;
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' \+ Q0 M/ E2 I1 f) wTetris* CreateSevenTetris()
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7 ~3 r1 ~* L( [& ?+ P, T static SevenTetris tetris;
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5 v2 \* l, c7 {$ H& Rtetris.InitPos();
7 x# p; g( i/ O7 J" P/ P* y9 E return & tetris;8 q6 ]$ c1 `: s9 W5 a' ^* h
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}
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private:1 |+ ?1 @' s2 S& O# [' \2 i
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typedef Tetris*(TetrisFactory::*PMA)();0 A. ?& }: K- E& @: t; O3 }/ r
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std::map<char,PMA> m_sel2TetrisMap;
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};
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有兴趣的朋友可以下下来改改玩玩。
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) A1 n2 C8 M5 x+ A5 u# `) @+ e: c$ x3 i% GThat’s all!7 s$ U8 o$ z6 E* _9 h
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Peter
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( S- t6 ?: }( z& `5 @- Q/ g8 T[ 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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