20.3.4 global[] 的使用
global[] 可以允许你在不重启游戏的情况下重新加载部分Startup阶段的脚本，或用于储存信息等。
一、Forge事件
以1.16.5中的Forge事件为例，其可改写为
// 使用global改写前
onForgeEvent("net.minecraftforge.event.entity.player.PlayerEvent$PlayerChangedDimensionEvent", event=>{
event.player.sendStatusMessage("你来到了" + event.getTo().getLocation(), false)
})
// 使用global改写后
onForgeEvent('net.minecraftforge.event.entity.player.PlayerEvent$PlayerChangedDimensionEvent', event => {
global['test_id'](event);
});
global['test_id'] = (event) => {
event.player.sendStatusMessage("你来到了" + event.getTo().getLocation(), false)
}改写后，你可以修改 global['test_id']的内容来在不重启游戏的情况下重新加载Forge事件内容，你可以使用 /kubejs reload startup_scripts 来重载该函数。
二、内容注册中的部分事件
类似地，部分内容注册中的事件也可以使用global改写（例如第七章 自定义方块中使用到的RandomTickEvent ）：
// 使用global改写前
onEvent('block.registry', event => {
event.create('test_block_randomTickEvent').displayName('Test Block randomTickEvent').randomTick(randomTickEvent => {
randomTickEvent.block.set('minecraft:dirt');
})
})
})
// 使用global改写后
onEvent('block.registry', event => {
event.create('test_block_randomTickEvent').displayName('Test Block randomTickEvent').randomTick(randomTickEvent => {
global['test_id'](event);
})
})
})
global['test_id'] = (event) => {
randomTickEvent.block.set('minecraft:dirt');
}与之类似的还有食用食物的ItemFoodEatenEvent等，在此就不再赘述了。
三、存储数据
以下以存储玩家登入信息为例：
global['login_info'] = {}
// 获取格式化时间
var getFormattedTime = function(date){
let currYear = date.getFullYear();
let currMonth = date.getMonth() + 1;
let currDay = date.getDate();
let currHour = date.getHours();
let currMinutes = date.getMinutes();
let currSeconds = date.getSeconds();
currMonth = (currMonth > 9) ? currMonth:"0" + currMonth;
currDay = (currDay > 9) ? currDay:"0" + currDay;
currHour = (currHour > 9) ? currHour:"0" + currHour;
currMinutes = (currMinutes > 9) ? currMinutes:"0" + currMinutes;
currSeconds = (currSeconds > 9) ? currSeconds:"0" + currSeconds;
return `${currYear}-${currMonth}-${currDay} ${currHour}:${currMinutes}:${currSeconds}`;
}
// 玩家登入时记录信息
onEvent('player.logged_in',event => {
let date = getFormattedTime(new Date());
let p = event.player;
global['login_info'][event.player.profile.name] = {time : date, pos: {x : p.x, y : p.y, z : p.z, dim : p.level.dimension}};
})
// 玩家退出时记录信息
onEvent('player.logged_out',event => {
global['login_info'][event.player.profile.name] = null;
})
// 聊天信息获取
onEvent('player.chat',event => {
let input = event.message.trim();
if(input.substring(0,8) == "gameinfo"){
// 传入登入信息对象
event.server.scheduleInTicks(1, global['login_info'], function (callback) {
let playerID = input.substring(9,);
if(callback.data[playerID] == undefined){
event.player.tell(Component.gold('====查询结果===='))
event.player.tell(Component.red("未查询到该玩家在线信息！"));
return;
}
let info = callback.data[playerID];
let playerTime = info.time;
let pos = info.pos;
event.player.tell(Component.gold('====查询结果===='));
event.player.tell(`玩家id：${playerID}\n登入时间：${playerTime}\n登入坐标：x = ${pos.x}, y = ${pos.y}, z = ${pos.z}\n登入维度：${pos.dim}`);
})
}
})效果：
M1hono
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