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tekton/addons/godot_ai/utils/game_log_buffer.gd

86 lines
2.5 KiB
GDScript

@tool
class_name McpGameLogBuffer
extends McpStructuredLogRing
## Ring buffer for game-process log lines (print, push_warning, push_error)
## ferried back from the playing game over the EngineDebugger channel.
##
## Larger cap than McpEditorLogBuffer because games can be noisy. `run_id`
## rotates at play-start, giving agents a stable cursor for "lines from
## this run" even when the game never reaches the mcp:hello boot beacon.
##
## Single-threaded — game_helper.gd drains its logger from `_process` and
## calls `append` from the main thread, so this subclass can use the base
## ring's lockless reads/writes directly.
const MAX_LINES := 2000
var _run_id := ""
var _run_seq := 0
func _init() -> void:
super._init(MAX_LINES)
func append(level: String, text: String, details: Dictionary = {}) -> void:
var entry := {
"source": "game",
"level": _coerce_level(level),
"text": text,
"run_id": _run_id,
}
if not details.is_empty():
entry["details"] = details.duplicate(true)
_append_entry(entry)
## Rotate the run identifier without dropping buffered entries. Called at
## play-start so even no-hello parse failures get a fresh current-run identity.
## Historical lines stay tagged with their original run_id and can still be
## queried explicitly.
func clear_for_new_run() -> String:
_run_id = _generate_run_id()
return _run_id
func run_id() -> String:
return _run_id
func get_run_range(run_id: String, offset: int, count: int) -> Array[Dictionary]:
return get_run_page(run_id, offset, count).entries
func run_total_count(run_id: String) -> int:
return int(get_run_page(run_id, 0, 0).total_count)
func get_run_page(run_id: String, offset: int, count: int) -> Dictionary:
var entries := _entries_for_run(run_id)
var start := mini(maxi(0, offset), entries.size())
var stop := mini(entries.size(), start + maxi(0, count))
var out: Array[Dictionary] = []
for i in range(start, stop):
out.append(entries[i])
return {
"entries": out,
"total_count": entries.size(),
}
func _entries_for_run(run_id: String) -> Array[Dictionary]:
var out: Array[Dictionary] = []
for entry in get_range(0, total_count()):
if str(entry.get("run_id", "")) == run_id:
out.append(entry)
return out
func _generate_run_id() -> String:
## Opaque to agents — they only check equality. Time-based is plenty
## unique within a single editor session; the local sequence protects
## fast back-to-back test runs within the same millisecond.
_run_seq += 1
return "r%d-%d" % [Time.get_ticks_msec(), _run_seq]