[egret+pomelo]实时游戏杂记（2）
pomelo
pomelo服务端介绍（game-server/config/server.json）：
{
"development": {
"connector": [
{"id": "connector-server-1", "host": "127.0.0.1", "port": 3150, "clientPort": 3010, "frontend": true},
{"id": "connector-server-2", "host": "127.0.0.1", "port": 3151, "clientPort": 3011, "frontend": true}
],
"area": [
{"id": "area-server-1", "host": "127.0.0.1", "port": 3250, "areaId": 1}
],
"gate": [
{"id": "gate-server-1", "host": "127.0.0.1", "clientPort": 3014, "frontend": true}
]
}
}
可以看出，服务端是由以下几个部分构成：
* 2 个 `connector` 服务器，主要用于接受和发送消息。
* 1 个 `gate` 服务器，主要用于负载均衡，将来自客户端的连接分散到两个 `connector` 服务器上。
* 1 个 `area` 服务器，主要用于驱动游戏场景，和游戏逻辑
由服务端的关系图可以看出，访问pomelo，首先应该访问gate服务端，让服务端为其分配合适的connector以处理当前用户的请求。
egret
1.链接gate服务端，将玩家名称传递给gate服务端以作为注册
config.global.pomelo.request("gate.gateHandler.queryEntry", { uid: config.global.playerName }, this.onGateMsg);
2.当gate服务端链接返回成功后，链接gate服务端返回的地址，链接分配给自己的connector服务端
private onGateMsg(gate_data) {
this.connectIp = gate_data.host;
this.connectPort = gate_data.port;
config.global.pomelo.disconnect();
trace("正在尝试链接connect服务端...");
config.global.pomelo.open(network.PomeloService.CONNECTION, this.connectIp, this.connectPort);
}
3.使用connector.entryHandler.entry在connector中注册，注册成功后，使用area.playerHandler.enterScene访问游戏场景信息
private onConnectSucceed() {
trace("CONNECT服务端链接成功");
trace("开始注册服务端信息...");
config.global.pomelo.request('connector.entryHandler.entry', { name: config.global.playerName }, this.onEntryMsg);
}
private onEntryMsg(entry_data) {
if (entry_data.code === 200) {
trace("注册信息成功");
trace("开始申请进入游戏...");
config.global.pomelo.request('area.playerHandler.enterScene', { name: config.global.playerName, playerId: entry_data.playerId }, (respose) => {
Global.dispatchEvent(events.PomeloServerEvents.MAPMSG, respose);
trace("进入游戏成功");
trace("开始解析地图信息");
});
} else {
trace("注册服务端信息出现问题，请检查提交信息");
}
}
4.游戏中会将地下散落的物品、玩家的位置以json格式返回 给客户端（返回的数据示例）
{
"code": 200,
"data": {
"area": {
"id": "1",
"entities": {
"1": {
"x": 2041,
"y": 256,
"entityId": 1,
"kindId": "3",
"kindName": "极限法剑",
"areaId": 1,
"type": "treasure",
"imgId": 301804,
"score": 20
},
"2": {
"x": 1354,
"y": 633,
"entityId": 2,
"kindId": 86,
"kindName": "威严腿铠",
"areaId": 1,
"type": "treasure",
"imgId": 344721,
"score": 80
},
"3": {
"x": 719,
"y": 460,
"entityId": 3,
"kindId": 103,
"kindName": "护身符",
"areaId": 1,
"type": "treasure",
"imgId": 980057,
"score": 1
},
"4": {
"x": 246,
"y": 1003,
"entityId": 4,
"kindId": 64,
"kindName": "玉树Belt",
"areaId": 1,
"type": "treasure",
"imgId": 371501,
"score": 25
},
"5": {
"x": 1343,
"y": 426,
"entityId": 5,
"kindId": 15,
"kindName": "紧身衣",
"areaId": 1,
"type": "treasure",
"imgId": 331203,
"score": 21
},
"6": {
"x": 417,
"y": 336,
"entityId": 6,
"kindId": 75,
"kindName": "幻彩玉带",
"areaId": 1,
"type": "treasure",
"imgId": 374224,
"score": 90
},
"7": {
"x": 1311,
"y": 262,
"entityId": 7,
"kindId": 73,
"kindName": "百窜云",
"areaId": 1,
"type": "treasure",
"imgId": 374222,
"score": 80
},
"8": {
"x": 1385,
"y": 870,
"entityId": 8,
"kindId": 57,
"kindName": "荧光坠子",
"areaId": 1,
"type": "treasure",
"imgId": 384921,
"score": 71
},
"9": {
"x": 432,
"y": 1044,
"entityId": 9,
"kindId": 111,
"kindName": "灵魂之石",
"areaId": 1,
"type": "treasure",
"imgId": 90102,
"score": 85
},
"10": {
"x": 910,
"y": 451,
"entityId": 10,
"kindId": 21,
"kindName": "锁子甲",
"areaId": 1,
"type": "treasure",
"imgId": 334303,
"score": 80
},
"11": {
"x": 982,
"y": 160,
"entityId": 11,
"kindId": 21,
"kindName": "锁子甲",
"areaId": 1,
"type": "treasure",
"imgId": 334303,
"score": 80
},
"12": {
"x": 746,
"y": 374,
"entityId": 12,
"kindId": 32,
"kindName": "流云",
"areaId": 1,
"type": "treasure",
"imgId": 394224,
"score": 64
},
"13": {
"x": 894,
"y": 827,
"entityId": 13,
"kindId": 32,
"kindName": "流云",
"areaId": 1,
"type": "treasure",
"imgId": 394224,
"score": 64
},
"14": {
"x": 1027,
"y": 724,
"entityId": 14,
"kindId": 73,
"kindName": "百窜云",
"areaId": 1,
"type": "treasure",
"imgId": 374222,
"score": 80
},
"15": {
"x": 699,
"y": 156,
"entityId": 15,
"kindId": 60,
"kindName": "Belt",
"areaId": 1,
"type": "treasure",
"imgId": 371101,
"score": 1
},
"16": {
"x": 881,
"y": 792,
"entityId": 16,
"kindId": 109,
"kindName": "圣母之镜",
"areaId": 1,
"type": "treasure",
"imgId": 90412,
"score": 61
},
"17": {
"x": 1442,
"y": 96,
"entityId": 17,
"kindId": 62,
"kindName": "银Belt",
"areaId": 1,
"type": "treasure",
"imgId": 371201,
"score": 13
},
"18": {
"x": 1754,
"y": 265,
"entityId": 18,
"kindId": 84,
"kindName": "独孤腿铠",
"areaId": 1,
"type": "treasure",
"imgId": 344701,
"score": 66
},
"19": {
"x": 1384,
"y": 279,
"entityId": 19,
"kindId": 13,
"kindName": "布衣",
"areaId": 1,
"type": "treasure",
"imgId": 331103,
"score": 1
},
"20": {
"x": 1277,
"y": 439,
"entityId": 20,
"kindId": 108,
"kindName": "钻石之星",
"areaId": 1,
"type": "treasure",
"imgId": 90472,
"score": 51
},
"21": {
"x": 53,
"y": 313,
"entityId": 21,
"kindId": 53,
"kindName": "骷髅吊坠",
"areaId": 1,
"type": "treasure",
"imgId": 381701,
"score": 31
},
"22": {
"x": 965,
"y": 367,
"entityId": 22,
"kindId": 73,
"kindName": "百窜云",
"areaId": 1,
"type": "treasure",
"imgId": 374222,
"score": 80
},
"23": {
"x": 146,
"y": 94,
"entityId": 23,
"kindId": 69,
"kindName": "攫魂铃",
"areaId": 1,
"type": "treasure",
"imgId": 371803,
"score": 55
},
"24": {
"x": 374,
"y": 400,
"entityId": 24,
"kindId": 100,
"kindName": "荒芜之鞋",
"areaId": 1,
"type": "treasure",
"imgId": 364724,
"score": 70
},
"25": {
"x": 1668,
"y": 807,
"entityId": 25,
"kindId": 105,
"kindName": "先祖护符",
"areaId": 1,
"type": "treasure",
"imgId": 980055,
"score": 21
},
"26": {
"x": 875,
"y": 384,
"entityId": 26,
"kindId": 39,
"kindName": "布帽",
"areaId": 1,
"type": "treasure",
"imgId": 321101,
"score": 17
},
"27": {
"x": 1799,
"y": 146,
"entityId": 27,
"kindId": 105,
"kindName": "先祖护符",
"areaId": 1,
"type": "treasure",
"imgId": 980055,
"score": 21
},
"28": {
"x": 1543,
"y": 384,
"entityId": 28,
"kindId": 31,
"kindName": "风云雷电",
"areaId": 1,
"type": "treasure",
"imgId": 394223,
"score": 56
},
"29": {
"x": 668,
"y": 1083,
"entityId": 29,
"kindId": 73,
"kindName": "百窜云",
"areaId": 1,
"type": "treasure",
"imgId": 374222,
"score": 80
},
"30": {
"x": 1884,
"y": 420,
"entityId": 30,
"kindId": 61,
"kindName": "缎带",
"areaId": 1,
"type": "treasure",
"imgId": 371103,
"score": 7
},
"31": {
"x": 2022,
"y": 715,
"entityId": 31,
"kindId": 48,
"kindName": "媚狐头饰",
"areaId": 1,
"type": "treasure",
"imgId": 324701,
"score": 85
},
"32": {
"x": 1568,
"y": 1138,
"entityId": 32,
"kindId": "9",
"kindName": "丰城剑",
"areaId": 1,
"type": "treasure",
"imgId": 304504,
"score": 68
},
"33": {
"x": 1219,
"y": 747,
"entityId": 33,
"kindId": 63,
"kindName": "水晶Belt",
"areaId": 1,
"type": "treasure",
"imgId": 371401,
"score": 19
},
"34": {
"x": 1696,
"y": 1146,
"entityId": 34,
"kindId": 16,
"kindName": "鳞甲",
"areaId": 1,
"type": "treasure",
"imgId": 331303,
"score": 31
},
"35": {
"x": 881,
"y": 563,
"entityId": 35,
"kindId": 54,
"kindName": "苍魂珠",
"areaId": 1,
"type": "treasure",
"imgId": 384222,
"score": 41
},
"36": {
"x": 1983,
"y": 456,
"entityId": 36,
"kindId": 101,
"kindName": "玉衡之履",
"areaId": 1,
"type": "treasure",
"imgId": 364803,
"score": 85
},
"37": {
"x": 268,
"y": 164,
"entityId": 37,
"kindId": 88,
"kindName": "斩魂腿甲",
"areaId": 1,
"type": "treasure",
"imgId": 344922,
"score": 90
},
"38": {
"x": 1373,
"y": 1047,
"entityId": 38,
"kindId": "8",
"kindName": "寒雪枪",
"areaId": 1,
"type": "treasure",
"imgId": 304501,
"score": 60
},
"39": {
"x": 964,
"y": 790,
"entityId": 39,
"kindId": 26,
"kindName": "折扇",
"areaId": 1,
"type": "treasure",
"imgId": 391201,
"score": 18
},
"40": {
"x": 1257,
"y": 1099,
"entityId": 40,
"kindId": 66,
"kindName": "白面狼牙",
"areaId": 1,
"type": "treasure",
"imgId": 371601,
"score": 37
},
"54": {
"x": 436,
"y": 208,
"entityId": 54,
"kindId": 210,
"areaId": 1,
"id": 214,
"type": "player",
"name": "ss",
"walkSpeed": 240,
"score": 0
}
},
"width": 2200,
"height": 1201
},
"playerId": 214
}
}
5.客户端根据返回的json，显示装备和玩家位置，并监听服务端中的移动以及状态更改事件，来做出相应的操作。
下面来看一下，pomelo服务端中是怎么处理前端的请求的。
在treasures的项目文档docs/tutorial.md 中给出的示例如下图
在（1）中，客户端通过pomelo.request方法，将gate.gateHandler.queryEntry 以及参数 uid 传递给gate服务端，下一步，我们进入服务端看一下（2）路径中的gateHandler文件
该方法为当前用户获取一个connector服务端，将用户uid参数与获取到的connector服务端绑定，并将分配后的connector服务端的获取状态code，链接host，端口port，返回给客户端进行处理，客户端在通过gate服务端接收到返回的参数后，就可以将gate服务端断开，然后链接分配给自己的connector服务端进行链接，通过 connector.entryHandler.entry，connector服务端会在用户第一次链接的时候初始化session信息，这样每次的服务端请求的时候，都不用再次 传递多余的数据。
entry方法成功后会向用户返回一个状态code 和玩家唯一标识playerId，客户端记住玩家唯一标识，以区分同场景中多个玩家时，哪一个玩家为自己的玩家。
这样一条用户请求和服务端返回的流程就走完了。
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