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fix(multiplayer): converge events through REST

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This commit is contained in:
Josh Creek
2026-09-02 18:54:10 +01:00
parent 91658fbc13
commit 55b88a3aa5
14 changed files with 128 additions and 18 deletions
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Game/scripts/control_plane_client.gd
+45 -4
View File
@@ -14,6 +14,7 @@ signal assignment_connection_failed(detail: String)
const DEFAULT_BASE_URL := "http://127.0.0.1:8080"
const PERSIST_PATH := "user://matchmaking_state.cfg"
const AUTHORITATIVE_RECOVERY_INTERVAL_SECONDS := 5.0
var base_url := DEFAULT_BASE_URL
var access_token := ""
@@ -33,6 +34,8 @@ var _websocket: WebSocketPeer
var _websocket_status := "DISCONNECTED"
var _websocket_retry_seconds := 0.0
var _websocket_backoff := 1.0
var _authoritative_recovery_seconds := AUTHORITATIVE_RECOVERY_INTERVAL_SECONDS
var _pending_proposal_id := ""
var _pending_assignment_match_id := ""
var _pending_resync_resource_id := ""
@@ -74,10 +77,15 @@ func _process(_delta: float) -> void:
_websocket_retry_seconds = _websocket_backoff
_websocket_backoff = minf(_websocket_backoff * 2.0, 30.0)
connect_event_stream()
if not _pending_assignment_match_id.is_empty() and _operation.is_empty() and not player_id.is_empty():
if not _pending_proposal_id.is_empty() and _operation.is_empty() and not player_id.is_empty():
var proposal_id := _pending_proposal_id
_pending_proposal_id = ""
recover_proposal(proposal_id)
elif not _pending_assignment_match_id.is_empty() and _operation.is_empty() and not player_id.is_empty():
var match_id := _pending_assignment_match_id
_pending_assignment_match_id = ""
fetch_assignment(match_id)
_poll_authoritative_recovery(_delta)
func configure(url: String, token: String) -> bool:
@@ -417,8 +425,10 @@ func _on_request_completed(result: HTTPRequest.Result, response_code: int, _head
_last_mutation_retryable = _last_mutation.get("operation", "") == operation
if operation == "ranked_profile":
ranked_profile.set_error("Ranked profile request failed")
elif operation == "queue_create" or operation == "queue_recover" or operation == "proposal_recover":
elif operation == "queue_create":
state.fail("Control-plane request failed")
elif operation == "queue_recover" or operation == "proposal_recover":
state.set_notice("Could not refresh matchmaking state; retrying")
else:
state.set_notice("Control-plane request failed; retrying is safe")
request_failed.emit(operation, response_code, "network error")
@@ -428,8 +438,10 @@ func _on_request_completed(result: HTTPRequest.Result, response_code: int, _head
_last_mutation_retryable = _last_mutation.get("operation", "") == operation
if operation == "ranked_profile":
ranked_profile.set_error("Ranked profile returned invalid JSON")
elif operation == "queue_create" or operation == "queue_recover" or operation == "proposal_recover":
elif operation == "queue_create":
state.fail("Control-plane returned invalid JSON")
elif operation == "queue_recover" or operation == "proposal_recover":
state.set_notice("Could not refresh matchmaking state; retrying")
else:
state.set_notice("Control-plane returned invalid JSON; retrying is safe")
request_failed.emit(operation, response_code, "invalid JSON")
@@ -494,6 +506,7 @@ func _on_request_completed(result: HTTPRequest.Result, response_code: int, _head
return
if operation.begins_with("queue_"):
if state.apply_ticket_update(normalize_ticket(payload), operation == "queue_recover"):
_queue_proposal_if_ready(payload)
_queue_assignment_if_ready(payload)
elif operation.begins_with("proposal_"):
state.apply_proposal_update(normalize_proposal(payload))
@@ -538,7 +551,8 @@ func _handle_websocket_packet(packet: PackedByteArray) -> void:
elif event_name == "proposal_changed":
var proposal_update := event.duplicate(true)
proposal_update["proposal_id"] = String(event["resource_id"])
state.apply_proposal_update(proposal_update)
if state.prepare_proposal_recovery(String(proposal_update["proposal_id"])):
state.apply_proposal_update(proposal_update)
elif event_name == "assignment_changed":
state.mark_assignment_ready()
_pending_assignment_match_id = String(event["match_id"])
@@ -599,6 +613,13 @@ static func _valid_queue_response(payload: Dictionary) -> bool:
return false
if String(payload["state"]) not in ["ALLOCATING", "PROCESS_READY", "ASSIGNMENT_READY", "ASSIGNED", "CONNECTING", "LIVE", "RESULT_PENDING", "COMPLETED", "FAILED", "CANCELLED"]:
return false
if payload.has("proposal_id"):
if not payload["proposal_id"] is String or not is_valid_resource_id(String(payload["proposal_id"])):
return false
if String(payload["state"]) != "PROPOSED":
return false
if payload.has("match_id") and payload.has("proposal_id"):
return false
if not _valid_revision(payload["revision"]):
return false
return payload["enqueued_at"] is String and is_valid_rfc3339_timestamp(String(payload["enqueued_at"])) and payload["expires_at"] is String and is_valid_rfc3339_timestamp(String(payload["expires_at"]))
@@ -612,6 +633,26 @@ func _queue_assignment_if_ready(payload: Dictionary) -> void:
_pending_assignment_match_id = match_id
func _queue_proposal_if_ready(payload: Dictionary) -> void:
if String(payload.get("state", "")) != "PROPOSED":
return
var proposal_id := String(payload.get("proposal_id", ""))
if is_valid_resource_id(proposal_id) and state.prepare_proposal_recovery(proposal_id):
_pending_proposal_id = proposal_id
func _poll_authoritative_recovery(delta: float) -> void:
if auth_expired or not is_valid_access_token(access_token) or state.ticket_id.is_empty() or state.phase in [MatchmakingState.CANCELLED, MatchmakingState.EXPIRED, MatchmakingState.FAILED, MatchmakingState.COMPLETED]:
_authoritative_recovery_seconds = AUTHORITATIVE_RECOVERY_INTERVAL_SECONDS
return
_authoritative_recovery_seconds -= maxf(0.0, delta)
if _authoritative_recovery_seconds > 0.0 or not _operation.is_empty():
return
_authoritative_recovery_seconds = AUTHORITATIVE_RECOVERY_INTERVAL_SECONDS
var resource_id := state.proposal_id if state.has_open_proposal() else state.ticket_id
_run_resync(resource_id)
static func _valid_proposal_response(payload: Dictionary) -> bool:
if not _valid_response_opaque_id(payload, "proposal_id") or not payload.has("expires_at") or not payload["expires_at"] is String or not is_valid_rfc3339_timestamp(String(payload["expires_at"])) or not payload.has("participants") or not payload["participants"] is Array:
return false
Game/scripts/matchmaking_state.gd
+13
View File
@@ -161,6 +161,19 @@ func apply_proposal_update(update: Dictionary) -> bool:
return true
func prepare_proposal_recovery(new_proposal_id: String) -> bool:
if not _valid_opaque_id(new_proposal_id):
return false
if proposal_id == new_proposal_id:
return true
if proposal_state not in ["", "DECLINED", "EXPIRED", "CANCELLED"]:
return false
proposal_id = new_proposal_id
proposal_revision = 0
proposal_state = ""
return true
func mark_assignment_ready() -> void:
phase = ASSIGNMENT_READY
message = "Match server is ready"