clean code and fix tagging system

level/Ground.gd

@@ -1,8 +0,0 @@
-extends Node3D
-
-func grounded(src: Player):
-	src._is_grounded = true
-	
-	
-
-

level/level.gd

@@ -9,7 +9,6 @@ enum GameState {
 }
 
 var game_state: GameState = GameState.WAITING
-var safe_player: Player
 var game_tagger: Player
 
 signal state_change(old: GameState, new: GameState)
@@ -20,7 +19,7 @@ signal state_leave_tagger_ungrounded
 signal state_enter_tagger_change(new_tagger: Player)
 signal state_leave_tagger_change
 
-const MIN_PLAYERS := 3
+const MIN_PLAYERS := 2
 const global_msg_1 := "Waiting for at least {min_players} players to join"
 const global_msg_2 := "Game is starting soon, {tagger_username} is it!"
 const global_msg_3 := "{tagger_username} is it! Run!"
@@ -53,7 +52,6 @@ func not_enough_players() -> bool:
 	return false
 
 func change_to_random_tagger():
-	safe_player = null
 	game_tagger = %Players.get_children().pick_random()
 	_change_state(GameState.TAGGER_CHANGE)
 
@@ -68,7 +66,6 @@ func tagger_left_game():
 		"tagger_username": tagger_username}))
 
 func set_tagger(who: Player):
-	safe_player = game_tagger
 	game_tagger = who
 	_change_state(GameState.TAGGER_CHANGE)
 
@@ -76,19 +73,13 @@ func _change_state(new_state: GameState):
 	var id := -1
 	if game_tagger != null:
 		id = game_tagger.get_multiplayer_authority()
-	var safe_player_id := -1
-	if safe_player != null:
-		safe_player_id = safe_player.get_multiplayer_authority()
-	_change_state_full.rpc(new_state, id, safe_player_id)
+	_change_state_full.rpc(new_state, id)
 
 @rpc("any_peer", "reliable", "call_local")
-func _change_state_full(new_state: GameState, new_tagger_id: int, new_safe_player_id: int):
+func _change_state_full(new_state: GameState, new_tagger_id: int):
 	game_tagger = null
-	safe_player = null
 	if new_tagger_id != -1:
 		game_tagger = find_player_by_id(new_tagger_id)
-	if new_safe_player_id != -1:
-		safe_player = find_player_by_id(new_safe_player_id)
 	if game_state == new_state:
 		return
 	if new_state == GameState.WAITING:
@@ -114,7 +105,7 @@ func _change_state_full(new_state: GameState, new_tagger_id: int, new_safe_playe
 func tagging_possible(_tagger: Player, tagee: Player) -> bool:
 	if game_state != GameState.TAGGER_GROUNDED and game_state != GameState.TAGGER_UNGROUNDED:
 		return false
-	return safe_player != tagee
+	return true
 
 func _ready():
 	# Hacky way to start level without going though multiplayer screens
@@ -126,6 +117,12 @@ func player_ground(v: bool, player: Player):
 	if game_tagger == player:
 		set_tagger_grounded(v)
 
+func teleport(who: Player):
+	if not who.is_multiplayer_authority():
+		push_error("Don't have the authority to teleport")
+		return
+	who.position = Vector3.ZERO
+
 func player_tag(who: Player, player: Player):
 	if not tagging_possible(player, who) or game_tagger != player:
 		return
@@ -134,6 +131,7 @@ func player_tag(who: Player, player: Player):
 	push_global_message.rpc(global_msg_4.format({
 		"old_tagger_username": old_tagger_username,
 		"tagger_username": tagger_username}))
+	teleport(player)
 	set_tagger(who)
 
 func start_game():

level/level.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=14 format=3 uid="uid://b00brfkibo5cj"]
+[gd_scene load_steps=13 format=3 uid="uid://b00brfkibo5cj"]
 
 [ext_resource type="PackedScene" uid="uid://bq654gwim6col" path="res://level/level.glb" id="1_s37in"]
 [ext_resource type="Environment" uid="uid://covjrwmk4rplw" path="res://level/world_environment.tres" id="2_ptkl6"]
@@ -6,7 +6,6 @@
 [ext_resource type="Script" path="res://addons/smoother/smoother.gd" id="5_2tyle"]
 [ext_resource type="Script" path="res://level/PlayerSpawner.gd" id="6_7ww0m"]
 [ext_resource type="MeshLibrary" uid="uid://cgh6y5j8wgi36" path="res://level/mesh_library/level_mesh_library.glb" id="6_d34iv"]
-[ext_resource type="Script" path="res://level/Ground.gd" id="8_yu1ir"]
 
 [sub_resource type="WorldBoundaryShape3D" id="WorldBoundaryShape3D_ujmev"]
 margin = 2.067
@@ -18,6 +17,7 @@ size = Vector3(2, 0.1, 2)
 size = Vector2(100, 100)
 
 [sub_resource type="BoxShape3D" id="BoxShape3D_m3lo5"]
+size = Vector3(100, 100, 1)
 
 [sub_resource type="SceneReplicationConfig" id="SceneReplicationConfig_285vp"]
 
@@ -51,7 +51,7 @@ visible = false
 
 [node name="Players" type="Node3D" parent="." index="3"]
 unique_name_in_owner = true
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 11.4823, 12, 16.4239)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 4.78702, 68.686, -4.61699)
 
 [node name="PlayerSpawner" type="MultiplayerSpawner" parent="." index="4"]
 unique_name_in_owner = true
@@ -81,7 +81,7 @@ data = {
 }
 metadata/_editor_floor_ = Vector3(0, 2, 0)
 
-[node name="MeshInstance3D" type="MeshInstance3D" parent="." index="8"]
+[node name="MeshInstance3D" type="MeshInstance3D" parent="." index="8" groups=["ground"]]
 transform = Transform3D(1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0.001, 0, 0)
 mesh = SubResource("QuadMesh_8lqeb")
 skeleton = NodePath("../Cube")
@@ -89,7 +89,7 @@ skeleton = NodePath("../Cube")
 [node name="StaticBody3D" type="StaticBody3D" parent="MeshInstance3D" index="0"]
 
 [node name="CollisionShape3D" type="CollisionShape3D" parent="MeshInstance3D/StaticBody3D" index="0"]
-transform = Transform3D(100, 0, 0, 0, 100, 0, 0, 0, 1, 0, 0, -0.5)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -0.5)
 shape = SubResource("BoxShape3D_m3lo5")
 
 [node name="MultiplayerSynchronizer" type="MultiplayerSynchronizer" parent="." index="9"]
@@ -107,12 +107,11 @@ layout_mode = 0
 offset_right = 40.0
 offset_bottom = 23.0
 
-[node name="Ground" type="Area3D" parent="." index="11"]
+[node name="Ground" type="Area3D" parent="." index="11" groups=["ground"]]
 transform = Transform3D(9, 0, 0, 0, 9, 0, 0, 0, 9, 4.85232, 7.93442, -4.42363)
 
 [node name="CollisionShape3D" type="CollisionShape3D" parent="Ground" index="0"]
 shape = SubResource("BoxShape3D_0y3ka")
-script = ExtResource("8_yu1ir")
 
 [connection signal="despawned" from="PlayerSpawner" to="." method="client_remove_player"]
 [connection signal="spawned" from="PlayerSpawner" to="." method="client_add_player"]

player/player.gd

@@ -19,16 +19,15 @@ signal ground(v: bool)
 
 func _process(_delta):
 	ground.emit(is_on_ground())
-	var player := get_first_bumper()
+	var player := get_first_tagging()
 	if player != null:
+		print("tag")
 		tag.emit(player)
 
-# Using signals to maintain a list of currently colliding players because it simplifies 
-# Memory management substantially since nodes are not GC'd
-# Connected nodes are the colliding nodes
-signal check_bumping(src: Player)
-var _is_grounded := false
-signal check_grounded
+# Signals being abused as weak hashsets
+# Never emit
+signal player_tagging_hashset
+signal ground_touching_hashset
 
 func _ready():
 	if username == "":
@@ -36,11 +35,7 @@ func _ready():
 	$Sphere.set_instance_shader_parameter("color", Color.DARK_ORANGE)
 
 func is_on_ground() -> bool:
-	_is_grounded = false
-	check_grounded.emit(self)
-	var v := _is_grounded
-	_is_grounded = false
-	return v
+	return player_tagging_hashset.get_connections().size() > 0
 	
 
 func _physics_process(delta):
@@ -59,43 +54,39 @@ func _physics_process(delta):
 
 	move_and_slide()
 
-var _first_bumper: Player = null
+func id():
+	return self
 
-func _bump_check(src: Player):
-	if src._first_bumper == null:
-		src._first_bumper = self
-	
-func get_first_bumper() -> Player:
-	_first_bumper = null
-	check_bumping.emit(self)
-	var player := _first_bumper
-	_first_bumper = null
-	return player
+func get_first_tagging() -> Player:
+	var connections := player_tagging_hashset.get_connections()
+	if connections.size() == 0:
+		return null
+	return connections[0]["callable"].call()
 
 func _on_tag_detection_area_entered(area):
-	if not (area.get_parent() is Player):
+	if not (area.get_parent() is Player) or area.get_parent() == self:
 		return
-	var _other_player: Player = area.get_parent()
-	if check_bumping.is_connected(_bump_check):
+	var other_player: Player = area.get_parent()
+	if player_tagging_hashset.is_connected(other_player.id):
 		return
-	check_bumping.connect(_bump_check)
+	player_tagging_hashset.connect(other_player.id)
 	
 func _on_tag_detection_area_exited(area):
-	if not (area.get_parent() is Player):
+	if not (area.get_parent() is Player) or area.get_parent() == self:
 		return
-	var _other_player: Player = area.get_parent()
-	if not check_bumping.is_connected(_bump_check):
+	var other_player: Player = area.get_parent()
+	if not player_tagging_hashset.is_connected(other_player.id):
 		return
-	check_bumping.disconnect(_bump_check)
+	player_tagging_hashset.disconnect(other_player.id)
 
 
-func _on_tag_detection_body_entered(body):
-	if "grounded" in body:
-		if not check_grounded.is_connected(body.grounded):
-			check_grounded.connect(body.grounded)
+func _on_ground_detection_node_entered(node: Node):
+	if node.is_in_group("ground"):
+		if not ground_touching_hashset.is_connected(node.get_tree):
+			ground_touching_hashset.connect(node.get_tree)
 
 
-func _on_tag_detection_body_exited(body):
-	if "grounded" in body:
-		if check_grounded.is_connected(body.grounded):
-			check_grounded.disconnect(body.grounded)
+func _on_ground_detection_node_exited(node: Node):
+	if node.is_in_group("ground"):
+		if ground_touching_hashset.is_connected(node.get_tree):
+			ground_touching_hashset.disconnect(node.get_tree)

player/player.tscn

@@ -32,7 +32,14 @@ collision_mask = 8388609
 [node name="CollisionShape3D" type="CollisionShape3D" parent="TagDetection" index="0"]
 shape = SubResource("SphereShape3D_ylark")
 
+[node name="GroundDetection" type="Area3D" parent="." index="4"]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="GroundDetection" index="0"]
+shape = SubResource("SphereShape3D_ylark")
+
 [connection signal="area_entered" from="TagDetection" to="." method="_on_tag_detection_area_entered"]
 [connection signal="area_exited" from="TagDetection" to="." method="_on_tag_detection_area_exited"]
-[connection signal="body_entered" from="TagDetection" to="." method="_on_tag_detection_body_entered"]
-[connection signal="body_exited" from="TagDetection" to="." method="_on_tag_detection_body_exited"]
+[connection signal="area_entered" from="GroundDetection" to="." method="_on_ground_detection_node_entered"]
+[connection signal="area_exited" from="GroundDetection" to="." method="_on_ground_detection_node_exited"]
+[connection signal="body_entered" from="GroundDetection" to="." method="_on_ground_detection_node_entered"]
+[connection signal="body_exited" from="GroundDetection" to="." method="_on_ground_detection_node_exited"]