function createContext (name) {
return {
name:game_number + "_" + name,
ready_promise:promise.defer(),
my_gate:"",
other_gate:"",
my_shots:0,
his_shots:0
};
};
function Game (game_number, base_path) {
var start_promise = promise.defer();
function createContext (name) {
return {
name:game_number + "_" + name,
ready_promise:promise.defer(),
my_gate:"",
other_gate:"",
my_shots:0,
his_shots:0
};
};
var playerAContext = this.playerAContext = createContext ("A");
var playerBContext = this.playerBContext = createContext ("B");
function Player (context) {
var zk = new ZK ().init (zk_config);
zk.on_connected().
then ( // create my own gate node
function (zkk){
console.log ("player %s on_connected: zk=%j", context.name, zkk);
return zkk.create (base_path + context.name, "target", 0/*ZK.ZOO_SEQUENCE*/);
}
).then ( // store the actual gate node path in the context and fire "I'm ready"
function (actual_gate_path) {
console.log ("player %s created his gate at=%s", context.name, actual_gate_path);
context.my_gate = actual_gate_path;
context.ready_promise.resolve ();
return start_promise;
},
function (error) {
if (error == ZK.ZNODEEXISTS) {
context.my_gate = base_path + context.name;
context.ready_promise.resolve ();
return start_promise;
} else {
throw new Error (error);
}
}
).then ( // game is on: shoot!
function () {
Defend ();
Shoot ();
}
);
var Shoot = function () {
console.log ("====>player %s says: I made %d shots, he made %s shots", context.name, context.my_shots, context.his_shots);
console.log ("player %s is about to attack", context.name);
zk.create (context.other_gate + "/attack", "kick", ZK.ZOO_SEQUENCE | ZK.ZOO_EPHEMERAL).then (
function (created_node) {
console.log ("player %s attacked with %s", context.name, created_node);
context.my_shots ++;
Shoot ();
}
)
};
var Defend = function () {
zk.w_get_children (context.my_gate,
function (type, state, path) { //this is my defence watcher
console.log ("defense watcher triggered for player %s: type=%d, path=%s", context.name,type, path);
Defend ();
}
).then (
function (children) {// these are attacks against me; I have to stop them
if (!children || !children.length ) return;
var delete_promisses = [];
children.forEach (
function (child) {
var ch_path = context.my_gate+"/"+child;
console.log ("player %s is stopping attack %s", context.name, ch_path);
var prm = zk.delete_ (ch_path, -1);
delete_promisses.push (prm);
context.his_shots ++;
}
);
promise.all (delete_promisses).then (
function () { //all children where deleted
console.log ("player %s stopped %d attacks: %j", context.name, delete_promisses.length, children);
}
);
}
);
};
}; // end of Player
var pA = Player (playerAContext);
var pB = Player (playerBContext);
promise.all ([playerAContext.ready_promise, playerBContext.ready_promise]).then (
function () {
playerAContext.other_gate = playerBContext.my_gate;
playerBContext.other_gate = playerAContext.my_gate;
console.log ("------- GAME #%d is ON!--------", game_number);
start_promise.resolve ();
}
);
};