dbot/modules/dice/dice.js
2013-01-15 16:54:51 +00:00

101 lines
2.9 KiB
JavaScript

var parseDiceSpec = function (specString) {
var rawSpec = specString.valMatch(/^([0-9]*)d(%|[0-9]*)(|[+-][0-9]+)$/i, 4);
if (rawSpec !== false) {
if (rawSpec[2] === "%") {
rawSpec[2] = 100;
}
return {
"count": parseInt(rawSpec[1] || 1),
"sides": parseInt(rawSpec[2] || 6),
"modifier": parseInt(rawSpec[3] || 0)
};
} else {
return false;
}
};
var normalizeDiceSpec = function (specString) {
var diceSpec = parseDiceSpec(specString);
if (diceSpec["sides"] > 10000) {
return false;
}
if (diceSpec["count"] > 1000) {
return false;
}
if (diceSpec["count"] > 1) {
var count = diceSpec["count"];
} else {
var count = "";
}
if (diceSpec["sides"] === 100) {
var sides = "%";
} else {
var sides = diceSpec["sides"];
}
if (diceSpec["modifier"] > 0) {
var modifier = "+" + diceSpec["modifier"];
} else if (diceSpec["modifier"] < 0) {
var modifier = diceSpec["modifier"];
} else {
var modifier = "";
}
return (count + "d" + sides + modifier);
};
var dice = function(dbot) {
var commands = {
'~roll': function (event) {
var rolls = [];
if (event.params.length === 1) {
event.params.push("d6");
}
for (var i = 1; i < event.params.length; i++) {
var diceSpec = parseDiceSpec(event.params[i]);
if (diceSpec === false) {
rolls.push([event.params[i], false]);
} else {
rolls.push([normalizeDiceSpec(event.params[i]), [], diceSpec["modifier"]]);
for (var j = 0; j < diceSpec["count"] ; j++) {
rolls[rolls.length-1][1].push(Math.ceil(Math.random() * diceSpec["sides"]));
}
}
}
for (var i = 0; i < rolls.length; i++) {
if (rolls[i][1] === false) {
event.reply(rolls[i][0] + ": invalid dice spec");
} else {
if (rolls[i][1].length > 1) {
var total = " (total " + rolls[i][1].sum();
if (rolls[i][2] != 0) {
if (rolls[i][2] > 0) {
total += " + ";
} else {
total += " - ";
}
total += Math.abs(rolls[i][2]) + " -> " + (rolls[i][1].sum() + rolls[i][2]);
}
total += ")"
} else {
var total = "";
}
event.reply(rolls[i][0] + ": " + rolls[i][1].join(" ") + total);
}
}
}
};
this.commands = commands;
}
exports.fetch = function(dbot) {
return new dice(dbot);
};