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extends Node
signal players_changed
var players = {}
func _ready():
multiplayer.connected_to_server.connect(_on_connected_to_server)
multiplayer.peer_connected.connect(_on_peer_connected)
multiplayer.peer_disconnected.connect(_on_peer_disconnected)
multiplayer.allow_object_decoding = true
func host_game(port):
var peer = ENetMultiplayerPeer.new()
peer.create_server(int(port))
multiplayer.multiplayer_peer = peer
players[1] = Client.player
func join_game(ip, port):
var peer = ENetMultiplayerPeer.new()
peer.create_client(ip, int(port))
multiplayer.multiplayer_peer = peer
func _on_connected_to_server():
print("connected to server")
func _on_peer_connected(id):
print("peer connected: ", id)
add_to_players.rpc(to_rpc_object(Client.player))
# TODO: add existing towers to new peers
func _on_peer_disconnected(id):
print("peer disconnected: ", id)
# TODO: move towers owned by peer to host
if id == 1:
get_tree().change_scene_to_file("res://UI/Lobby.tscn")
func get_ordered_player_ids():
var keys = players.keys()
keys.sort_custom(func(a, b):
return int(str(a).substr(0, 8)) < int(str(b).substr(0, 8))
)
return keys
func to_rpc_object(object: Variant):
var remote_object = {}
var properties = object.get_rpc_properties()
for property in properties:
var property_class = properties[property]
if object[property] is Dictionary:
remote_object[property] = {}
for key in object[property]:
remote_object[property][key] = to_rpc_object(object[property][key])
elif property_class is String and property_class.begins_with("node://"):
remote_object[property] = object[property]
elif property_class:
remote_object[property] = to_rpc_object(object[property])
else:
remote_object[property] = object[property]
return remote_object
func from_rpc_object(remote_object: Dictionary, remote_class_path: String):
var object
var remote_class = load(remote_class_path)
if remote_class is PackedScene:
object = remote_class.instantiate()
elif remote_class is GDScript:
object = remote_class.new()
else:
assert(false, "unexpected remote class type")
var properties = object.get_rpc_properties()
for property in properties:
var property_class = properties[property]
if object[property] is Dictionary:
for key in object[property]:
object[property][key] = from_rpc_object(remote_object[property], property_class)
elif property_class is String and property_class.begins_with("node://"):
var node_path = property_class.substr(7) # after node://
object.remove_child(object.get_node(node_path))
remote_object[property].name = node_path.get_basename()
object[property] = remote_object[property]
object.add_child(remote_object[property])
elif property_class:
object[property] = from_rpc_object(remote_object[property], property_class)
else:
object[property] = remote_object[property]
return object
func merge_with_rpc_object(object: Variant, remote_object: Dictionary):
var properties = object.get_rpc_properties()
for property in properties:
var property_class = properties[property]
if object[property] is Dictionary:
object[property] = {}
for key in remote_object[property]:
object[property][key] = from_rpc_object(remote_object[property][key], property_class)
elif property_class:
object[property] = merge_with_rpc_object(object[property], remote_object[property])
else:
object[property] = remote_object[property]
return object
@rpc("call_local", "any_peer")
func add_to_players(remote_player: Dictionary):
var id = multiplayer.get_remote_sender_id()
var player = from_rpc_object(remote_player, "res://Game/Player.gd")
player.id = id
players[id] = player
players_changed.emit()
@rpc("call_local", "any_peer")
func update_player(remote_player: Dictionary):
var id = multiplayer.get_remote_sender_id()
var player = merge_with_rpc_object(players[id], remote_player)
player.id = id
players[id] = player
players_changed.emit()
@rpc("any_peer", "reliable")
func update_node(node_path: NodePath, properties: Dictionary):
var root_node = get_tree().root.get_node(node_path)
for property in properties:
if property.contains(":"):
var child_node = get_nested_node_and_property(root_node, property)
child_node.node[child_node.property] = properties[property]
else:
root_node[property] = properties[property]
func get_nested_node_and_property(node: Node, property: String) -> Dictionary:
if property.contains(":"):
var nested_node_path = property.substr(0, property.find(":"))
var nested_property = property.substr(property.find(":") + 1)
return get_nested_node_and_property(node.get_node(nested_node_path), nested_property)
return { "node": node, "property": property }
@rpc("any_peer")
func place_tower(remote_tower: Dictionary, position: Vector2):
var remote_player_id = multiplayer.get_remote_sender_id()
var tower = from_rpc_object(remote_tower, "res://Towers/Tower.tscn")
tower.owner_id = remote_player_id
players[remote_player_id].towers[tower.global_position] = tower
Client.stage.place_tower(tower, position)
@rpc("any_peer")
func destroy_tower(remote_tower: Dictionary):
var player = players[remote_tower.owner_id] as Player
var tower = player.towers.get(remote_tower.global_position)
Client.stage.destroy_tower(tower)
@rpc("any_peer")
func spawn_unit(remote_unit: Dictionary, remote_spawn: Dictionary):
var unit = from_rpc_object(remote_unit, "res://Units/Unit.tscn")
var spawn = from_rpc_object(remote_spawn, "res://Stages/Paths/Spawn.tscn")
var remote_id = multiplayer.get_remote_sender_id()
unit.owner_id = remote_id
unit.set_multiplayer_authority(remote_id)
Client.stage.spawn_unit(unit, spawn)
@rpc("any_peer")
func remove_unit(remote_unit_node_path):
var unit = get_tree().current_scene.get_node_or_null(remote_unit_node_path)
if unit:
unit.queue_free()
@rpc("any_peer")
func update_unit(remote_unit_node_path, data):
var unit: Unit = get_tree().current_scene.get_node_or_null(remote_unit_node_path)
if unit:
if "position" in data:
unit.position = data.position
unit.hp = data.hp
if "sprite" in data:
unit.get_node("Sprite2D").self_modulate = data.sprite.self_modulate
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