简易联机实现

world/main.gd

@@ -0,0 +1,35 @@
+extends Node3D
+## 世界根节点。
+##
+## 只做一件事：把玩家场景注册给 MultiplayerSpawner，并把 spawner 托管给 Net 单例。
+## 玩家的生成/回收时机完全由 Net 决定，本文件不主动调用 spawn。
+
+const PLAYER_SCENE: PackedScene = preload("res://player/player.tscn")
+const PLAYER_GROUP: String = "net_player"
+## 用节点路径而不是全局标识符访问单例：
+## autoload 的全局名只在引擎启动时注册，这样写不依赖注册时机。
+const NET_PATH: String = "/root/Net"
+
+@onready var spawner: MultiplayerSpawner = $MultiplayerSpawner
+
+
+func _ready() -> void:
+	spawner.spawn_function = _create_player
+	var net := get_node_or_null(NET_PATH)
+	if net != null:
+		net.bind_spawner(spawner)
+	else:
+		push_error("Net 单例未注册，联机不可用。请确认 project.godot 的 [autoload] 里有 Net")
+
+
+## MultiplayerSpawner 会在**每一端**都调用这个函数，因此 authority 必须在这里设置：
+## 这样「谁是本地玩家」在各端结论一致，玩家脚本里的 is_multiplayer_authority() 才可靠。
+## recursive=true 很关键 —— 节点 authority 不自动继承，Sync 子节点必须一起设。
+func _create_player(peer_id: int) -> Node:
+	var player := PLAYER_SCENE.instantiate()
+	player.name = str(peer_id)
+	player.add_to_group(PLAYER_GROUP)
+	player.set_multiplayer_authority(peer_id, true)
+	var here := multiplayer.get_unique_id()
+	print("[Net] 本端 %d 生成玩家 %d%s" % [here, peer_id, "（本地操控）" if peer_id == here else "（远端回放）"])
+	return player

world/main.gd.uid

@@ -0,0 +1 @@
+uid://11rbhffe5dhv

world/main.tscn

@@ -1,7 +1,7 @@
 [gd_scene format=3 uid="uid://bp8l1uwgshc86"]
 
-[ext_resource type="PackedScene" uid="uid://bekuuw153mv03" path="res://player/player.tscn" id="1_gjxf3"]
-[ext_resource type="Sky" path="res://world/sky/cartoon_sky.tres" id="2_cartoon"]
+[ext_resource type="Script" uid="uid://11rbhffe5dhv" path="res://world/main.gd" id="1_hyim0"]
+[ext_resource type="Sky" uid="uid://bi632suyifms5" path="res://world/sky/cartoon_sky.tres" id="2_cartoon"]
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_hyim0"]
 size = Vector3(40, 0.5, 40)
@@ -22,6 +22,7 @@ ambient_light_source = 3
 reflected_light_source = 2
 
 [node name="Main" type="Node3D" unique_id=58155864]
+script = ExtResource("1_hyim0")
 
 [node name="Ground" type="StaticBody3D" parent="." unique_id=305091665]
 
@@ -40,8 +41,8 @@ shadow_enabled = true
 directional_shadow_blend_splits = true
 directional_shadow_max_distance = 40.0
 
-[node name="Player" parent="." unique_id=869687860 instance=ExtResource("1_gjxf3")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.3, 0)
-
 [node name="Environment" type="WorldEnvironment" parent="." unique_id=794103784]
 environment = SubResource("Environment_gu74f")
+
+[node name="MultiplayerSpawner" type="MultiplayerSpawner" parent="." unique_id=1410622657]
+spawn_path = NodePath("..")

world/sky/cartoon_sky.tres

@@ -4,6 +4,45 @@
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_cartoon"]
 shader = ExtResource("1_cartoon")
+shader_parameter/zenith_color = Color(0.09, 0.3, 0.78, 1)
+shader_parameter/mid_color = Color(0.28, 0.6, 0.95, 1)
+shader_parameter/horizon_color = Color(0.78, 0.88, 1, 1)
+shader_parameter/ground_color = Color(0.29, 0.329, 0.384, 1)
+shader_parameter/gradient_bias = 1.4
+shader_parameter/band_count = 0.0
+shader_parameter/band_sharpness = 0.9
+shader_parameter/follow_scene_light = 1.0
+shader_parameter/sun_direction = Vector3(0.35, 0.55, 0.35)
+shader_parameter/sun_core_color = Color(1, 0.976, 0.878, 1)
+shader_parameter/sun_halo_color = Color(1, 0.827, 0.478, 1)
+shader_parameter/sun_disk_size = 0.035
+shader_parameter/sun_disk_softness = 0.2
+shader_parameter/sun_halo_size = 0.55
+shader_parameter/sun_halo_strength = 0.65
+shader_parameter/sun_bloom_strength = 0.35
+shader_parameter/sun_intensity = 1.7
+shader_parameter/star_amount = 0.0
+shader_parameter/star_density = 60.0
+shader_parameter/star_size = 0.05
+shader_parameter/star_twinkle = 0.65
+shader_parameter/star_color = Color(0.85, 0.9, 1, 1)
+shader_parameter/cloud_color = Color(1, 1, 1, 1)
+shader_parameter/cloud_shadow_color = Color(0.45, 0.62, 0.88, 1)
+shader_parameter/cloud_rim_color = Color(1, 0.93, 0.76, 1)
+shader_parameter/cloud_coverage = 0.55
+shader_parameter/cloud_scale = 4.0
+shader_parameter/cloud_plane_offset = 0.6
+shader_parameter/cloud_horizon_fade = 0.08
+shader_parameter/cloud_edge = 0.16
+shader_parameter/cloud_warp = 0.3
+shader_parameter/cloud_speed = 0.01
+shader_parameter/cloud_direction = Vector2(1, 0.25)
+shader_parameter/cloud_shading = 0.55
+shader_parameter/cloud_rim = 0.4
+shader_parameter/cloud_opacity = 1.0
+shader_parameter/haze_color = Color(0.8, 0.89, 1, 1)
+shader_parameter/haze_strength = 0.35
+shader_parameter/haze_height = 0.09
 
 [resource]
 sky_material = SubResource("ShaderMaterial_cartoon")