Unity3d使用蓝牙(bluetooth)开发IOS点对点网络游戏

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Unity3d使用蓝牙(bluetooth)开发IOS点对点网络游戏

2024-07-02 14:33:32 234人阅读

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　　最近使用Unity3d制作的IOS游戏需要加入联网对战功能功能，因此使用ObjC语言利用IOS SDK的GameKit.framework的Peer-to-peer Connectivity实现了网络连接，在此分享。

啥话都不说，先上代码。点我下载工程文件，

类NetWorkP2P，继承自NSObject。提供GKSessionDelegate和GKPeerPickerControllerDelegate的实现。并且利用单例模式实现一个类方法+( NetWorkP2P *) sharedNetWorkP2P;此方法返回一个NetWorkP2P的实例。

//
//  NetWorkP2P.h
//  P2PTapWar
//
//  Created by  on 11-9-14.
//  Copyright 2011年 __MyCompanyName__. All rights reserved.
//

#import<Foundation/Foundation.h>
#import<GameKit/GameKit.h>

#define AMIPHD_P2P_SESSION_ID @"amiphd-p2p"
#define START_GAME_KEY @"startgame"
#define TIME_KEY @"time"
#define END_GAME_KEY @"endgame"
#define TAP_COUNT_KEY @"taps"
#define TIMES_KEY @"times"

@interface NetWorkP2P : NSObject<GKSessionDelegate,GKPeerPickerControllerDelegate>{
    
    UInt32 playerScore;
    UInt32 opponentScore;
    
    UInt32 playerTimes;
    UInt32 opponentTimes;
    
    NSString *opponentID;
    BOOL actingAsHost;
    GKSession *gkSession; 
}
+( NetWorkP2P *) sharedNetWorkP2P;
-(void)showPeerPickerController;

-(void)addTheScore: (UInt32)score;
-(void)addTimes;

-(UInt32)getOpponentScore;
-(UInt32)getPlayerScore;
-(UInt32)getPlayerTimes;
-(UInt32)getOpponentTimes;

-(NSString *)getOpponentID;
@end

类NetWorkP2P的实现文件，fileName：NetWorkP2P.m

//
//  NetWorkP2P.m
//  P2PTapWar
//
//  Created by  on 11-9-14.
//  Copyright 2011年 __MyCompanyName__. All rights reserved.
//

#import"NetWorkP2P.h"

@implementation NetWorkP2P
+(NetWorkP2P *) sharedNetWorkP2P{
    static NetWorkP2P *sharedNetWorkObject;
    if(!sharedNetWorkObject)
        sharedNetWorkObject=[[NetWorkP2P alloc] init];
    return sharedNetWorkObject;
}

- (id)init
{
    self = [super init];
    if (self) {
        // Initialization code here.
    }
    
    return self;
}
-(UInt32)getPlayerScore{
    return playerScore;
}
-(UInt32)getOpponentScore{
    return opponentScore;
}
-(UInt32)getOpponentTimes{
    return opponentTimes;
}
-(UInt32)getPlayerTimes{
    return playerTimes;
}
-(NSString *)getOpponentID
{
    return opponentID;
}
-(void) showPeerPickerController
{
    if(!opponentID)
    {
        actingAsHost=YES;
        GKPeerPickerController *peerPickerContrller=[[GKPeerPickerController alloc] init];
        peerPickerContrller.delegate=self;
        peerPickerContrller.connectionTypesMask=GKPeerPickerConnectionTypeNearby;
        [peerPickerContrller show];
    }
}
-(void)addTheScore:(UInt32)score
{
    playerScore+=score;
    NSMutableData *message=[[NSMutableData alloc]init];
    NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc]initForWritingWithMutableData:message];
    [archiver encodeInt:playerScore forKey:TAP_COUNT_KEY];
    [archiver finishEncoding];
    GKSendDataMode sendMode=GKSendDataUnreliable;
    [gkSession sendDataToAllPeers:message withDataMode:sendMode error:NULL];
    [archiver release];
    [message release];
    
}
-(void)addTimes
{
    playerTimes++;
    NSMutableData *message=[[NSMutableData alloc]init];
    NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc] initForWritingWithMutableData:message];
    [archiver encodeInt:playerTimes forKey:TIMES_KEY];
    [archiver finishEncoding];
    GKSendDataMode sendMode=GKSendDataUnreliable;
    [gkSession sendDataToAllPeers:message withDataMode:sendMode error:NULL];
    [archiver release];
    [message release];
}
#pragma mark game logic

-(void) initGame{
    playerScore=0;
    opponentScore=0;
}
-(void) hostGame{
    [self initGame];
    NSMutableData *message=[[NSMutableData alloc] init];
    NSKeyedArchiver *archiver=[[NSKeyedArchiver alloc] initForWritingWithMutableData:message];
    [archiver encodeBool:YES forKey:START_GAME_KEY];
    [archiver finishEncoding];
    
    NSError *sendErr=nil;
    [gkSession sendDataToAllPeers:message withDataMode:GKSendDataReliable error:&sendErr];
    if (sendErr) {
        NSLog(@"send greeting failed : %@",sendErr);
    }
    [message release];
    [archiver release];
}
-(void) joinGame{
    [self initGame];
}
-(void) showEndGameAlert{
}
-(void) endGame{
    opponentID=nil;
    [gkSession disconnectFromAllPeers];
    [self showEndGameAlert];
}

#pragma mark GKPeerPickerControllerDelegate methods

-(GKSession *) peerPickerController:(GKPeerPickerController *)picker sessionForConnectionType:(GKPeerPickerConnectionType)type
{
    if(!gkSession)
    {
        gkSession=[[GKSession alloc] initWithSessionID:AMIPHD_P2P_SESSION_ID displayName:nil sessionMode:GKSessionModePeer];
        gkSession.delegate=self;
    }
    return gkSession;
}
-(void) peerPickerController:(GKPeerPickerController *) picker didConnectPeer:(NSString *)peerID toSession:(GKSession *)session
{
    NSLog ( @"connected to peer %@", peerID);
    [session retain];      // TODO: who releases this?
    [picker dismiss];
    [picker release];
}
- (void)peerPickerControllerDidCancel:(GKPeerPickerController *)picker {
    NSLog ( @"peer picker cancelled");
    [picker release];
}

#pragma mark GKSessionDelegate methods

//START:code.P2PTapWarViewController.peerdidchangestate
- (void)session:(GKSession *)session peer:(NSString *)peerID
 didChangeState:(GKPeerConnectionState)state {
    switch (state) 
    { 
        case GKPeerStateConnected: 
            [session setDataReceiveHandler: self withContext: nil]; 
            opponentID = peerID;
            actingAsHost ? [self hostGame] : [self joinGame];
            break; 
    } 
}
//END:code.P2PTapWarViewController.peerdidchangestate


//START:code.P2PTapWarViewController.didreceiveconnectionrequestfrompeer
- (void)session:(GKSession *)session
didReceiveConnectionRequestFromPeer:(NSString *)peerID {
    actingAsHost = NO;
}
//END:code.P2PTapWarViewController.didreceiveconnectionrequestfrompeer

- (void)session:(GKSession *)session connectionWithPeerFailed:(NSString *)peerID withError:(NSError *)error {
    NSLog (@"session:connectionWithPeerFailed:withError:");    
}

- (void)session:(GKSession *)session didFailWithError:(NSError *)error {
    NSLog (@"session:didFailWithError:");        
}
#pragma mark receive data from session
-(void) receiveData: (NSData *) data fromPeer : (NSString *) peerID inSession: (GKSession *) session context:(void*) context{
    NSKeyedUnarchiver *unarchiver=[[NSKeyedUnarchiver alloc] initForReadingWithData:data];
    if([unarchiver containsValueForKey:TAP_COUNT_KEY])
    {
        opponentScore=[unarchiver decodeIntForKey:TAP_COUNT_KEY];
    }
    if([unarchiver containsValueForKey:TIMES_KEY])
    {
        opponentTimes=[unarchiver decodeIntForKey:TIMES_KEY];
    }
    if([unarchiver containsValueForKey:END_GAME_KEY])
    {
        [self endGame];
    }
    if([unarchiver containsValueForKey:START_GAME_KEY])
    {
        [self joinGame];
    }
    [unarchiver release];
}
@end

fileName:NetWorkP2PBinding.m在此文件中实现C语言接口，以方便在UnityScript中调用。

//NetWorkP2PBinding.mm

#import"NetWorkP2P.h"

extern"C"{
    void _showPeerPicker()
    {
        [[NetWorkP2P sharedNetWorkP2P] showPeerPickerController];
        NSLog(@"call the mothed _showPeerPicker");
    }
    
    constchar* _getName()
    {
        return [@"fyn" UTF8String];
    }
    int _getOpponentScore()
    {
        return [[NetWorkP2P sharedNetWorkP2P]getOpponentScore];
    }
    int _getPlayerScore()
    {
        return [[NetWorkP2P sharedNetWorkP2P]getPlayerScore];
    }
    
    void _addTheScore( UInt32 score)
    {
        [[NetWorkP2P sharedNetWorkP2P] addTheScore:score];
    }
    void _addTheTimes()
    {
        [[NetWorkP2P sharedNetWorkP2P] addTimes];
    }
    int _getOpponentTimes()
    {
        return [[NetWorkP2P sharedNetWorkP2P] getOpponentTimes];
    }
    int _getPlayerTimes()
    {
        return [[NetWorkP2P sharedNetWorkP2P] getPlayerTimes];
    }
    constchar* _getOpponentID()
    {
        return [[[NetWorkP2P sharedNetWorkP2P ]getOpponentID] UTF8String];
    }
}

FileName:P2PBinding.cs 这是在Unity3d中C＃脚本，在这里面调用NetWorkP2PBinding.mm实现的C语言方法。

//P2PBinding.cs

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;


publicclass P2PBinding{
    [DllImport("__Internal")]
    privatestaticexternvoid _showPeerPicker();
    
    publicstaticvoid showPeerPicker()
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
            _showPeerPicker();
    }
    
    [DllImport("__Internal")]
    privatestaticexternint _getOpponentScore();
    
    [DllImport("__Internal")]
    privatestaticexternint _getOpponentTimes();
    
    [DllImport("__Internal")]
    privatestaticexternint _getPlayerScore();
    
    [DllImport("__Internal")]
    privatestaticexternint _getPlayerTimes();
    
    [DllImport("__Internal")]
    privatestaticexternvoid _addTheTimes();
    
    [DllImport("__Internal")]
    privatestaticexternvoid _addTheScore(int score);
    
    publicstaticint getOpponentScore()
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
        {
            return _getOpponentScore();
        }
        return-1;
    }
    publicstaticint getOpponentTimes()
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
        {
            return _getOpponentTimes();
        }
        return-1;
    }
    publicstaticint getPlayerScore()
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
        {
            return _getPlayerScore();
        }
        return-1;
    }
    publicstaticint getPlayerTimes()
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
        {
            return _getPlayerTimes();
        }
        return-1;
    }
    publicstaticvoid addTheScore(int score)
    {
        if(Application.platform==RuntimePlatform.IPhonePlayer)
        {
            _addTheScore(score);
        }
    }
    publicstaticvoid addTheTimes()
    {
        _addTheTimes();
    }
}

FileName：GameDate.cs 此文件提供游戏的数据，并保持和NetWorkP2P文件中数据同步，将此文件附加到一个GameObject上。

using UnityEngine;
using System.Collections;

publicclass GameDate : MonoBehaviour {
    
    publicstring opponentID;
    
    publicint playerTimes;
    publicint opponentTimes;
    publicint playerScore;
    publicint opponentScore;
    
    // Use this for initialization
void Start () {
        P2PBinding.showPeerPicker();
    }
    
    // Update is called once per frame
void Update () {
        opponentTimes=P2PBinding.getOpponentTimes();
        opponentScore=P2PBinding.getOpponentScore();
    }
}

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Unity3d使用蓝牙(bluetooth)开发IOS点对点网络游戏

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