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GGS/games/Pong/Classes/GGSNetwork.m
2011-02-28 20:50:37 +01:00

140 lines
4 KiB
Objective-C

//
// Network.m
// Pong
//
// Created by Jeena on 27.02.11.
// Copyright 2011 __MyCompanyName__. All rights reserved.
//
#import "GGSNetwork.h"
@implementation GGSNetwork
#define GGS_HOST @"localhost"
#define GGS_PORT 9000
#define NO_TIMEOUT -1
#define HEADER_DELIMITER [@"\n\n" dataUsingEncoding:NSUTF8StringEncoding]
#define CONNECT_HEAD 8
#define CONNECT_BODY 9
#define HELLO_HEAD 10
#define HELLO_BODY 11
#define DEFINE_HEAD 12
#define DEFINE_BODY 13
#define COMMAND_HEAD 14
#define COMMAND_BODY 15
@synthesize asyncSocket, delegate, gameToken, currentHeaders;
- (id)initWithDelegate:(id<GGSDelegate>)_delegate {
if (self = [super init]) {
delegate = _delegate;
asyncSocket = [[AsyncSocket alloc] initWithDelegate:self];
[asyncSocket connectToHost:GGS_HOST onPort:GGS_PORT error:nil];
[asyncSocket readDataToData:HEADER_DELIMITER withTimeout:NO_TIMEOUT tag:CONNECT_HEAD];
}
return self;
}
- (NSData *)makeMessageWithCommand:(NSString *)command andArgs:(NSString *)args {
return [[NSString stringWithFormat:@"Token: %@\nServer-Command: %@\nContent-Length: %i\n\n%@",
self.gameToken,
command,
[args length],
args] dataUsingEncoding:NSUTF8StringEncoding];
}
- (void)define:(NSString *)sourceCode {
[asyncSocket writeData:[self makeMessageWithCommand:@"define" andArgs:sourceCode] withTimeout:NO_TIMEOUT tag:DEFINE_HEAD];
[asyncSocket readDataToData:HEADER_DELIMITER withTimeout:NO_TIMEOUT tag:DEFINE_BODY];
}
- (void)sendCommand:(NSString *)command withArgs:(NSString *)args {
[asyncSocket writeData:[self makeMessageWithCommand:command andArgs:args] withTimeout:NO_TIMEOUT tag:COMMAND_HEAD];
[asyncSocket readDataToData:HEADER_DELIMITER withTimeout:NO_TIMEOUT tag:COMMAND_BODY];
}
- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port {
}
- (void)onSocket:(AsyncSocket *)sender didReadData:(NSData *)data withTag:(long)tag {
if (tag == CONNECT_HEAD) {
[self parseHeader:data];
if ([self.currentHeaders objectForKey:@"Size"] != nil) {
[asyncSocket readDataToLength:[[self.currentHeaders objectForKey:@"Size"] intValue] withTimeout:NO_TIMEOUT tag:CONNECT_BODY];
}
} else if (tag == CONNECT_BODY) {
NSString *response = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
self.gameToken = response;
[response release];
[delegate GGSNetwork:self ready:YES];
} else if (tag == DEFINE_HEAD) {
[self.delegate GGSNetwork:self defined:YES];
} else if (tag == DEFINE_BODY) {
// nothing to do
} else if (tag == COMMAND_HEAD) {
[self parseHeader:data];
if ([self.currentHeaders objectForKey:@"Size"] != nil) {
[asyncSocket readDataToLength:[[self.currentHeaders objectForKey:@"Size"] intValue] withTimeout:NO_TIMEOUT tag:COMMAND_BODY];
}
} else if (tag == COMMAND_BODY) {
NSString *response = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if ([self.currentHeaders objectForKey:@"Client-Command"] != nil) {
[delegate GGSNetwork:self receivedCommand:[self.currentHeaders objectForKey:@"Client-Command"] withArgs:response];
[asyncSocket readDataToData:HEADER_DELIMITER withTimeout:NO_TIMEOUT tag:COMMAND_BODY];
}
[response release];
}
}
- (void)parseHeader:(NSData *)headerData {
NSString *headerString = [[NSString alloc] initWithData:headerData encoding:NSUTF8StringEncoding];
NSArray *headers = [headerString componentsSeparatedByString:@"\n"];
NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithCapacity:[headers count]];
for (NSInteger i=0; i<[headers count]; i++) {
NSString *header = [headers objectAtIndex:i];
if ([header rangeOfString:@"Client-Command: "].location == 0) {
[dict setValue:[header substringFromIndex:16] forKey:@"Client-Command"];
} else if ([header rangeOfString:@"Size: "].location == 0) {
[dict setValue:[header substringFromIndex:6] forKey:@"Size"];
}
}
self.currentHeaders = dict;
[headerString release];
[dict release];
}
- (void)dealloc {
[asyncSocket release];
[gameToken release];
[currentHeaders release];
[super dealloc];
}
@end