先上效果圖
- 功能展示
- 初高級(jí)棋盤切換效果
實(shí)現(xiàn)思路及主要代碼詳解
1.繪制棋盤
利用quartz2d繪制棋盤.代碼如下
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- (void)drawbackground:(cgsize)size{ self.gridwidth = (size.width - 2 * kboardspace) / self.gridcount; //1.開啟圖像上下文 uigraphicsbeginimagecontext(size); //2.獲取上下文 cgcontextref ctx = uigraphicsgetcurrentcontext(); cgcontextsetlinewidth(ctx, 0.8f); //3.1 畫16條豎線 for (int i = 0; i <= self.gridcount; i ++) { cgcontextmovetopoint(ctx, kboardspace + i * self.gridwidth , kboardspace); cgcontextaddlinetopoint(ctx, kboardspace + i * self.gridwidth , kboardspace + self.gridcount * self.gridwidth); } //3.1 畫16條橫線 for (int i = 0; i <= self.gridcount; i ++) { cgcontextmovetopoint(ctx, kboardspace, kboardspace + i * self.gridwidth ); cgcontextaddlinetopoint(ctx, kboardspace + self.gridcount * self.gridwidth , kboardspace + i * self.gridwidth); } cgcontextstrokepath(ctx); //4.獲取生成的圖片 uiimage *image=uigraphicsgetimagefromcurrentimagecontext(); //5.顯示生成的圖片到imageview uiimageview * imageview = [[uiimageview alloc]initwithimage:image]; [self addsubview:imageview]; uigraphicsendimagecontext();} |
2.點(diǎn)擊棋盤落子
1）根據(jù)落子位置求出該棋子的行號(hào)與列號(hào).
2）判斷落子位置是否已經(jīng)有棋子,有則不能下.如果沒有,將棋子保存在字典中,以列號(hào)和行號(hào)組合起來的字符串為key值.
代碼如下：
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//點(diǎn)擊棋盤,下棋 - (void)tapboard:(uitapgesturerecognizer *)tap{ cgpoint point = [tap locationinview:tap.view]; //計(jì)算下子的列號(hào)行號(hào) nsinteger col = (point.x - kboardspace + 0.5 * self.gridwidth) / self.gridwidth; nsinteger row = (point.y - kboardspace + 0.5 * self.gridwidth) / self.gridwidth; nsstring * key = [nsstring stringwithformat:@"%ld-%ld",col,row]; if (![self.chessmandict.allkeys containsobject:key]) { uiview * chessman = [self chessman]; chessman.center = cgpointmake(kboardspace + col * self.gridwidth, kboardspace + row * self.gridwidth); [self addsubview:chessman]; [self.chessmandict setvalue:chessman forkey:key]; self.lastkey = key; //檢查游戲結(jié)果 [self checkresult:col androw:row andcolor:self.isblack]; self.isblack = !self.isblack; } } |
3.檢測(cè)游戲結(jié)果
每落一個(gè)棋子就要多游戲結(jié)果進(jìn)行一次檢查,判斷四個(gè)方向上是否有大于等于5個(gè)同色的棋子連成一線,有則提示游戲輸贏結(jié)果,無則游戲繼續(xù).算法為,從當(dāng)前棋子位置向前遍歷,直到遇到與自己不同色的棋子,累加同色棋子的個(gè)數(shù),再往后遍歷,直到遇到與自己不同色的棋子,累加同色棋子的個(gè)數(shù).得到該方向相連同色棋子的總個(gè)數(shù)
代碼如下
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//判斷是否大于等于五個(gè)同色相連 - (bool)checkresult:(nsinteger)col androw:(nsinteger)row andcolor:(bool)isblack anddirection:(gmkdirection)direction{ if (self.samechessmanarray.count >= 5) { return yes; } uicolor * currentchessmancolor = [self.chessmandict[[nsstring stringwithformat:@"%ld-%ld",col,row]] backgroundcolor]; [self.samechessmanarray addobject:self.chessmandict[self.lastkey]]; switch (direction) { //水平方向檢查結(jié)果 case gmkhorizontal:{ //向前遍歷 for (nsinteger i = col - 1; i > 0; i --) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",i,row]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } //向后遍歷 for (nsinteger i = col + 1; i < kgridcount; i ++) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",i,row]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } if (self.samechessmanarray.count >= 5) { [self alertresult]; return yes; } [self.samechessmanarray removeallobjects]; } break; case gmkvertical:{ //向前遍歷 for (nsinteger i = row - 1; i > 0; i --) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",col,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } //向后遍歷 for (nsinteger i = row + 1; i < kgridcount; i ++) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",col,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } if (self.samechessmanarray.count >= 5) { [self alertresult]; return yes; } [self.samechessmanarray removeallobjects]; } break; case gmkobliquedown:{ //向前遍歷 nsinteger j = col - 1; for (nsinteger i = row - 1; i >= 0; i--,j--) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",j,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor || j < 0) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } //向后遍歷 j = col + 1; for (nsinteger i = row + 1 ; i < kgridcount; i++,j++) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",j,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor || j > kgridcount) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } if (self.samechessmanarray.count >= 5) { [self alertresult]; return yes; } [self.samechessmanarray removeallobjects]; } break; case gmkobliqueup:{ //向前遍歷 nsinteger j = col + 1; for (nsinteger i = row - 1; i >= 0; i--,j++) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",j,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor || j > kgridcount) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } //向后遍歷 j = col - 1; for (nsinteger i = row + 1 ; i < kgridcount; i++,j--) { nsstring * key = [nsstring stringwithformat:@"%ld-%ld",j,i]; if (![self.chessmandict.allkeys containsobject:key] || [self.chessmandict[key] backgroundcolor] != currentchessmancolor || j < 0) break; [self.samechessmanarray addobject:self.chessmandict[key]]; } if (self.samechessmanarray.count >= 5) { [self alertresult]; return yes; } [self.samechessmanarray removeallobjects]; } break; } return no; } |
對(duì)外提供,重新開始,悔棋,切換初高級(jí)棋盤的三個(gè)接口
重新開始
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- (void)newgame{ self.isover = no; self.lastkey = nil; [self.samechessmanarray removeallobjects]; self.userinteractionenabled = yes; [self.chessmandict removeallobjects]; for (uiview * view in self.subviews) { if ([view iskindofclass:[uiimageview class]]) { continue; } [view removefromsuperview]; } self.isblack = no; } |
悔棋
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//撤回至上一步棋 - (void)backonestep:(uibutton *)sender{ if(self.isover) return; if (self.lastkey == nil) { sender.enabled = no; cgfloat width = screen_width * 0.4 * screen_width_ratio; uiview * tip = [[uiview alloc]initwithframe:cgrectmake(0, 0, width, 0.6 * width)]; tip.backgroundcolor = [uicolor colorwithwhite:1 alpha:0.8]; tip.layer.cornerradius = 8.0f; [self addsubview:tip]; tip.center = cgpointmake(self.width * 0.5, self.height * 0.5); uilabel * label = [[uilabel alloc]init]; label.text = self.chessmandict.count > 0 ? @"只能悔一步棋!!!" : @"請(qǐng)先落子!!!"; label.font = [uifont systemfontofsize:15]; [label sizetofit]; label.center = cgpointmake(tip.width * 0.5, tip.height * 0.5); [tip addsubview:label]; self.userinteractionenabled = no; dispatch_after(dispatch_time(dispatch_time_now, (int64_t)(2.0 * nsec_per_sec)), dispatch_get_main_queue(), ^{ self.userinteractionenabled = yes; sender.enabled = yes; [tip removefromsuperview]; }); return; } [self.chessmandict removeobjectforkey:self.lastkey]; [self.subviews.lastobject removefromsuperview]; self.isblack = !self.isblack; self.lastkey = nil; } |
切換初高級(jí)鍵盤
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//改變鍵盤級(jí)別 - (void)changeboardlevel{ for (uiview * view in self.subviews) { [view removefromsuperview]; } [self newgame]; self.ishighlevel = !self.ishighlevel; [self drawbackground:self.bounds.size]; } |
demo中的一個(gè)小技巧
用字典存放棋子,以棋子的列號(hào)和行號(hào)組合起來的字符串為key值,value值為棋子view.這樣處理,在判斷某行某列是否有棋子就非常簡單了。
總結(jié)
以上就是ios游戲開發(fā)之五子棋oc版的全部內(nèi)容，希望本文對(duì)大家開發(fā)ios有所幫助，如果本文有不足之處,歡迎大家提供建議和指點(diǎn)！
