1.httpClient和ScrollView
1 在服务器端使用sqllite编写数据库
常见命令是：sqlite3 tank.db
进入之后创建表：
| create table tscore ( id integer primary key autoincrement, username varchar(32) unique not null, totalscore integer not null, score integer not null );
|
在服务器端编写程序：
| #include<stdio.h> #include<sqlite3.h> #include<string.h> #include<stdlib.h>
int main() printf("Content-type:text/html\n\n"); //set Score to Database char * queryString = getenv("QUERY_STRING"); if(queryString == NULL) { printf("Err:queryString is NULL"); return 0; }
//totalscore=%d&score=%d&user=user%d //获取参数 char *totalScore = strtok(queryString,"&"); char *score = strtok(NULL,"&"); char *username = strtok(NULL,"&");
strtok(totalScore,"="); totalScore = strtok(NULL,"=");
strtok(score,"="); score = strtok(NULL,"=");
//写数据库 sqlite3* db; int ret = sqlite3_open("/usr/lib/cgi-bin/tank.db",&db); if(ret != SQLITE_OK) { printf("open database error:%s",sqlite3_errstr(sqlite3_errcode(db))); return 0; }
char sql[2048]; sprintf(sql,"insert into tscore(username,totalScore,score) values('%s',%s,%s)",usernam| e,totalScore,score); ret = sqlite3_exec(db,sql,NULL,NULL,NULL); printf("%s<br>",sql);
if(ret != SQLITE_OK) { printf("insert data error:%s",sqlite3_errstr(sqlite3_errcode(db))); sqlite3_close(db); return 0; }
return 0; } |
| 编译： sudo gcc setScore.c -o setScore.cgi -lsqlite3 注意要加上最后面的-lsqlite3,不然 设置tank.db的权限
在浏览器中输入以下链接地址： http://192.168.28.155/cgi-bin/setScore.cgi?totalscore=100&score=1011&username=toto 网页中的输出运行结果：
tank.db中的内容如下：
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2 游戏服务器端代码，用于操作数据库
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#include <stdio.h> #include <sqlite3.h> #include <string.h> #include <stdlib.h> int selectCallback(void* arg,int argc,char** argv,char** argvv) { //argv[0] id //argv[1] username //argv[2] totalscore //argv[3] score
// username&totalscore&score&.... printf("%s&%s&%s&", argv[1], argv[2], argv[3]); return 0; }
int main() { printf("Content-type:text/html\n\n"); #if 0 printf("This is cocos cgi-test\n"); // 打印环境变量 extern char** environ; int i; for(i=0; ;++i) { if(environ[i]) printf("%s\n<br>", environ[i]); else break; } #endif
// set Score to Database char* queryString = getenv("QUERY_STRING"); if(queryString == NULL) { printf("Err: queryString is NULL"); return 0; }
// totalscore=%d&score=%d&user=user%d // 获取参数 char* totalScore = strtok(queryString, "&"); char* score = strtok(NULL, "&"); char* username = strtok(NULL, "&");
strtok(totalScore, "="); totalScore = strtok(NULL, "=");
strtok(score, "="); score = strtok(NULL, "=");
strtok(username, "="); username = strtok(NULL, "=");
// 写数据库 sqlite3* db; int ret = sqlite3_open("/usr/lib/cgi-bin/tank.db", &db); if(ret != SQLITE_OK) { printf("open database error: %s", sqlite3_errstr(sqlite3_errcode(db))); return 0; }
char sql[2048]; sprintf(sql, "insert into tscore (username, totalscore, score) values ('%s', %s, %s)", username, totalScore, score); ret = sqlite3_exec(db, sql, NULL, NULL, NULL); #if 0 printf("%s<br>", sql); return 0; #endif if(ret != SQLITE_OK) { printf("insert data error: %s", sqlite3_errstr(sqlite3_errcode(db))); sqlite3_close(db); return 0; }
sprintf(sql, "select * from tscore order by totalscore desc limit 10"); ret = sqlite3_exec(db, sql, selectCallback, NULL, NULL); if(ret != SQLITE_OK) { printf("select data error: %s", sqlite3_errstr(sqlite3_errcode(db))); sqlite3_close(db); return 0; }
sqlite3_close(db);
return 0; } |
| Makefile文件 |
| cfiles := $(shell find -name "*.c") targets := $(cfiles:.c=.cgi)
all: $(targets)
%.cgi:%.c gcc -o $@ $^ -lsqlite3
.PHONY: clean clean: rm *.cgi |
| 编译： sudo gcc setScore.c -o setScore.cgi -lsqlite3 浏览器访问： http://192.168.28.155/cgi-bin/setScore.cgi?totalscore=90&score=121&username=toto23
|
较完整的服务器段代码
| setScore.c |
|
#include <stdio.h> #include <sqlite3.h> #include <string.h> #include <stdlib.h> int selectCallback(void* arg,int argc,char** argv,char** argvv) { //argv[0] id //argv[1] username //argv[2] totalscore //argv[3] score
// username&totalscore&score&.... printf("%s&%s&%s&", argv[1], argv[2], argv[3]); return 0; }
int main() { printf("Content-type:text/html\n\n"); #if 0 printf("This is cocos cgi-test\n"); // 打印环境变量 extern char** environ; int i; for(i=0; ;++i) { if(environ[i]) printf("%s\n<br>", environ[i]); else break; } #endif
// set Score to Database char* queryString = getenv("QUERY_STRING"); if(queryString == NULL) { printf("Err: queryString is NULL"); return 0; }
// totalscore=%d&score=%d&user=user%d // 获取参数 char* totalScore = strtok(queryString, "&"); char* score = strtok(NULL, "&"); char* username = strtok(NULL, "&");
strtok(totalScore, "="); totalScore = strtok(NULL, "=");
strtok(score, "="); score = strtok(NULL, "=");
strtok(username, "="); username = strtok(NULL, "=");
// 写数据库 sqlite3* db; int ret = sqlite3_open("/usr/lib/cgi-bin/tank.db", &db); if(ret != SQLITE_OK) { printf("open database error: %s", sqlite3_errstr(sqlite3_errcode(db))); return 0; }
char sql[2048]; sprintf(sql, "insert into tscore (username, totalscore, score) values ('%s', %s, %s)", username, totalScore, score); ret = sqlite3_exec(db, sql, NULL, NULL, NULL); #if 0 printf("%s<br>", sql); return 0; #endif if(ret != SQLITE_OK) { printf("insert data error: %s", sqlite3_errstr(sqlite3_errcode(db))); sqlite3_close(db); return 0; }
sprintf(sql, "select * from tscore order by totalscore desc limit 10"); ret = sqlite3_exec(db, sql, selectCallback, NULL, NULL); if(ret != SQLITE_OK) { printf("select data error: %s", sqlite3_errstr(sqlite3_errcode(db))); sqlite3_close(db); return 0; } sqlite3_close(db); return 0; } |
3 HttpClient的客户端：
| T24HttpClient.h（Get方式） |
| #ifndef __T24HttpClient_H__ #define __T24HttpClient_H__
#include "cocos2d.h" #include "cocos-ext.h" #include "TBack.h" USING_NS_CC; USING_NS_CC_EXT;
class T24HttpClient :public TBack { public: CREATE_FUNC(T24HttpClient); bool init(); static CCScene * scene();
void HttpResponse(CCHttpClient* client, CCHttpResponse* response); };
#endif |
| T24HttpClient.cpp |
| #include "T24HttpClient.h"
CCScene* T24HttpClient::scene() { CCScene* scene = CCScene::create(); T24HttpClient* layer = T24HttpClient::create(); scene->addChild(layer); return scene; }
bool T24HttpClient::init() { TBack::init();
//向服务器发送请求（http报文）单例 CCHttpClient* client = CCHttpClient::getInstance();
//创建一个request对象 CCHttpRequest* request = new CCHttpRequest(); //设置访问URL request->setUrl("http://192.168.192.130/cgi-bin/setScore.cgi?username=xxx&score=xxxx&totalscore=xxx"); request->setResponseCallback(this, httpresponse_selector(T24HttpClient::HttpResponse));
//要对client进行release client->release();
return true; }
//通过回调的方式实现 void T24HttpClient::HttpResponse(CCHttpClient* client, CCHttpResponse* response) { if (!response->isSucceed()) { CCLog("response error: %s", response->getErrorBuffer()); return; }
//获得相应的数据 std::vector<char>* data = response->getResponseData();
std::string strData; std::vector<char>::iterator it; for (it = data->begin(); it != data->end(); ++it) { strData.push_back(*it); }
CCLog("response data is: %s", strData.c_str()); } |
| 运行结果：
|
| HttpClient(POST方式); |
| #ifndef __HttpClientPost_H__ #define __HttpClientPost_H__
#include "cocos2d.h" #include "cocos-ext.h" #include "TBack.h" USING_NS_CC; USING_NS_CC_EXT;
class HttpClientPost:public TBack { public: CREATE_FUNC(HttpClientPost); bool init(); static CCScene* scene();
void HttpResponse(CCHttpClient* client, CCHttpResponse* response); };
#endif |
| HttpClientPost.cpp |
| #include "HttpClientPost.h"
CCScene* HttpClientPost::scene() { CCScene* scene = CCScene::create(); HttpClientPost* layer = HttpClientPost::create(); scene->addChild(layer); return scene; }
bool HttpClientPost::init() { TBack::init(); //向服务器发送请求（http报文） CCHttpClient* client = CCHttpClient::getInstance();
CCHttpRequest* req = new CCHttpRequest; req->setUrl("http://192.168.192.131/cgi-bin/posttest.cgi"); req->setRequestType(CCHttpRequest::kHttpPost); req->setResponseCallback(this, httpresponse_selector(HttpClientPost::HttpResponse));
char buf[8192];
FILE* f = fopen("btn_go_0.png","rb"); int len = fread(buf,1,8192,f); fclose(f); CCLOG("len=%d\n",len);
req->setRequestData((const char*)buf,len);
client->send(req); req->release();
return true; }
void HttpClientPost::HttpResponse(CCHttpClient* client, CCHttpResponse* response) { //如果相应失败 if (!response->isSucceed()) { //获取失败信息 CCLog("response error: %s", response->getErrorBuffer()); return; }
//获得相应的数据 std::vector<char>* data = response->getResponseData();
std::string strData; std::vector<char>::iterator it; for (it = data->begin(); it != data->end(); ++it) { strData.push_back(*it); }
CCLog("response data is:%s", strData.c_str()); } |
| 运行结果：
|
2 CCScrollView案例
| T25ScrollView.h |
| #ifndef __T25ScrollView_H__ #define __T25ScrollView_H__
#include "cocos2d.h" #include "cocos-ext.h" #include "TBack.h" USING_NS_CC; USING_NS_CC_EXT;
class T25ScrollView :public TBack { public: CREATE_FUNC(T25ScrollView); bool init(); static CCScene * scene();
bool ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent); void ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent); void adjustViewPos(float dt);
CCNode* _node; bool isSlider(CCTouch* t); };
#endif |
| T25ScrollView.cpp |
| #include "T25ScrollView.h"
CCScene *T25ScrollView::scene() { CCScene * scene = CCScene::create(); T25ScrollView * layer = T25ScrollView::create(); scene->addChild(layer); return scene; }
bool T25ScrollView::init() { TBack::init();
CCSize winSize = CCDirector::sharedDirector()->getWinSize();
CCNode* node = CCNode::create(); _node = node; char buf[] = "a"; //注意：ScrollView中的每个元素实际上都是一个精灵 for (int i = 0; i < 5; ++i) { //创建精灵 CCSprite* s = CCSprite::create("HelloWorld.png"); //将精灵添加到node中去 node->addChild(s); s->setPosition(ccp(0, winSize.height*i)); s->setAnchorPoint(ccp(0, 0));
//设置标签 CCLabelTTF* label = CCLabelTTF::create(buf, "Arial", 24); buf[0]++; s->addChild(label); label->setPosition(ccp(winSize.width / 2, winSize.height / 2)); }
//创建ScrollView，创建的时候需要node节点 CCScrollView* view = CCScrollView::create(winSize, node); addChild(view); //设置滚动试图的显示方式，下面的设置表示的是垂直滚动 view->setDirection(kCCScrollViewDirectionVertical); //设置view的ContentSize，大小是5个精灵的高度 view->setContentSize(CCSizeMake(winSize.width, winSize.height * 5)); view->setBounceable(false);// 去掉弹性
setTouchEnabled(true); setTouchMode(kCCTouchesOneByOne);
return true; }
bool T25ScrollView::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent) { return true; }
//判断是否滚动了 bool T25ScrollView::isSlider(CCTouch* t) { CCPoint ptCur = t->getLocation(); CCPoint ptStart = t->getStartLocation(); if (ptCur.getDistanceSq(ptStart) > 25) { return true; } return false; }
void T25ScrollView::adjustViewPos(float dt) { //计算 CCSize winSize = CCDirector::sharedDirector()->getWinSize(); int fitPos[] = { 0, -winSize.height, //向下移动一屏 -winSize.height * 2, //向下移动两屏 -winSize.height * 3, //向下移动三屏 -winSize.height * 4 //向下移动四屏 };
int y = _node->getPositionY(); int i; for (i = 0; i < 5; ++i) { int dist = abs(fitPos[i] - y); if (dist < winSize.height / 2) { break; } }
//创建一个点 CCPoint ptDest = ccp(0, fitPos[i]); //让点移动到指定的位置 _node->runAction(CCMoveTo::create(.2f, ptDest)); }
void T25ScrollView::ccTouchEnded(CCTouch* t, CCEvent* e) { //判断点击的坐标，是哪个坐标 if (isSlider(t)) { //调整位置 scheduleOnce(schedule_selector(T25ScrollView::adjustViewPos), 0.05f); return; }
//点击的代码 CCSize winSize = CCDirector::sharedDirector()->getWinSize();
CCPoint ptWorld = t->getLocation(); //将世界坐标转化成为本地坐标 CCPoint ptNode = _node->convertToNodeSpace(ptWorld); int index = ptNode.y / winSize.height; CCLog("clicked index=%d", index); } |
| 运行结果（上下移动）：
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