---
front: https://nie.res.netease.com/r/pic/20210730/ee109f39-8987-46e0-9fe7-40ebb23060fa.png
hard: 进阶
time: 40分钟
---
# 制作小船带玩家离开新手岛
完成新手引导后，玩家需要乘船离开岛屿，先制作一个小船使其可以漂浮在水上并且具有寻路的组件：
```json
{
"format_version":"1.16.0",
"minecraft:entity":{
"description":{
"identifier":"farm:guide_boat",
"is_spawnable":true,
"is_summonable":true,
"is_experimental":false
},
"components": {
"minecraft:buoyant": { //使实体可以像船一样漂浮在水面上
"apply_gravity": true,
"base_buoyancy": 1.0,
"simulate_waves": true,
"big_wave_probability": 0.03,
"big_wave_speed": 10.0,
"drag_down_on_buoyancy_removed": 0,
"liquid_blocks": ["water"]
},
"minecraft:underwater_movement": { //水中的移动速度
"value": 0.25
},
"minecraft:navigation.walk": { //寻路组件（不会沉底）
"can_sink": false
},
"minecraft:rideable": { //玩家可以骑乘实体
"seat_count": 1,
"family_types": ["player"],
"interact_text": "action.interact.enter_boat",
"seats": {
"position": [0, 0.5, 0]
}
},
"minecraft:follow_range": {
"value": 64,
"max": 64
},
"minecraft:health": {
"value": 10,
"max": 10
},
"minecraft:movement": {
"value": 0.25
},
"minecraft:movement.basic": {},
"minecraft:collision_box": {
"width": 1,
"height": 1
},
"minecraft:physics": {}
},
"component_groups":{
"boat_finding":{ //通过py添加的组件组，使船可以寻找特定的方块并移动至方块位置
"minecraft:behavior.move_to_block": {
"priority": 0,
"tick_interval": 1,
"start_chance": 1.0,
"search_range": 64,
"search_height": 10,
"goal_radius": 1.0,
"stay_duration": 999.0,
"target_selection_method": "nearest",
"target_offset": [
0,
0,
0
],
"target_blocks": [ //寻找的方块
"minecraft:double_wooden_slab:1"
],
"on_reach": [ //到达附近触发的事件
{
"event": "reach_boat",
"target": "self"
}
]
}
}
},
"events":{
"start_boat":{ //添加组件组的事件
"add":{
"component_groups":["boat_finding"]
}
},
"reach_boat":{ //船到达目的地触发的事件，py将监听此事件
}
}
}
}
```
在"minecraft:behavior.move_to_block"中，设置小船寻找的方块为**"minecraft:double_wooden_slab:1"**，这个方块是双层的云杉木半砖，所以我们需要对地图做一些简单的修改，将码头最外侧的一个云杉木板改为双层云杉木半砖，外观上完全一致，并且可以让小船寻找这个方块前往码头：
玩家完成引导任务后会创建船的实体，需要使用py检测玩家坐上船后触发船的组件并且监听船到达目的地的事件：
```python
leveldatacomp = serverApi.GetEngineCompFactory().CreateExtraData(serverApi.GetLevelId())
timecomp = serverApi.GetEngineCompFactory().CreateTime(serverApi.GetLevelId())
class FarmServerSystem(ServerSystem):
def __init__(self, namespace, systemName):
ServerSystem.__init__(self, namespace, systemName)
# 监听EntityStartRidingEvent事件
self.ListenForEvent(serverApi.GetEngineNamespace(), serverApi.GetEngineSystemName(),
"EntityStartRidingEvent", self, self.Start_Gam
)
# 监听EntityDefinitionsEventServerEvent事件
self.ListenForEvent(serverApi.GetEngineNamespace(), serverApi.GetEngineSystemName(),
'EntityDefinitionsEventServerEvent',
self, self.EntityEvent)
# ···
def Start_Game(self, args):
# 通过事件获取玩家id和船的id
self.start_playerid = args["id"]
boatid = args["rideId"]
# 获取数据player_guide
self.guide_dialogue = leveldatacomp.GetExtraData("player_guide")
# 如果guide_dialogue的dialogue值等于5（说明玩家已经完成新手引导）
if self.guide_dialogue等于5["dialogue"] == 5:
# 创建触发实体事件的组件
entityeventcomp = serverApi.GetEngineCompFactory().CreateEntityEvent(boatid)
# 触发小船的"start_boat"事件
result = entityeventcomp.TriggerCustomEvent(boatid, "start_boat")
def EntityEvent(self,args):
# 获取的实体触发的事件名
eventname = args['eventName']
# 如果事件名不是"reach_boat"就返回
if eventname != "reach_boat":
return
# 获取被骑乘者(船)的id
entityid = args['entityId']
# 获取乘船玩家的id
rider_id = serverApi.GetEngineCompFactory().CreateRide(entityid).GetEntityRider()
# 执行创建数据的函数，并将玩家id作为参数
self.start_game_data(rider_id)
# 创建传送玩家的接口
playertpcomp = serverApi.GetEngineCompFactory().CreatePos(self.start_playerid)
# 传送玩家到坐标位置
playertpcomp.SetPos((55, 63, 131))
# 销毁船
self.DestroyEntity(entityid)
# 重置世界时间为0
timecomp.SetTime(0)
# 新手引导结束，开始游戏触发的函数
def start_game_data(self, playerid):
# 设置初始数据：玩家钱数为100
leveldatacomp.SetExtraData("player_coin", 100)
# 设置初始数据：玩家家具为0
leveldatacomp.SetExtraData("player_furniture", 0)
# 将初始数据存放在event变量中并发送事件到客户端创建数据ui
event = {"playerid": playerid, "player_data_coin": leveldatacomp.GetExtraData("player_coin"),
"player_data_furniture": leveldatacomp.GetExtraData("player_furniture")}
self.NotifyToClient(self.playername, "create_data_ui", event)
```
现在，《海滨小岛》已经有了一个完整的新手引导，玩家在乘船登上新岛屿后就可以开始正常的游戏了，当然我们也可以继续添加引导使玩家对玩法更加清晰，比如在图书馆里放置一个指引书供玩家阅览。
