no message

project/ui/msa_motion.gd

@@ -0,0 +1,38 @@
+# MsaMotion —— 读 .msa 文本里的根运动：移动动作每秒位移（cm/s，movSpd 100 时）。
+#
+#   MotionDuration           0.600000
+#   Accumulation             0.00	-255.45	0.00
+#
+# 服务端 CHARACTER::GetMoveMotionSpeed = -Accumulation.y / MotionDuration；
+# 客户端 CActorInstance::AccumulationMovement 按同一累计量推进。这里取 xy 长度。
+extends RefCounted
+
+static var _cache := {}   # path -> float
+
+static func move_speed(path: String) -> float:
+	if path == "" or not path.to_lower().ends_with(".msa"):
+		return 0.0
+	if _cache.has(path):
+		return float(_cache[path])
+	var speed := 0.0
+	var f := FileAccess.open(path, FileAccess.READ)
+	if f:
+		var duration := 0.0
+		var accum := Vector2.ZERO
+		while not f.eof_reached():
+			var parts := _fields(f.get_line())
+			if parts.size() < 2:
+				continue
+			match String(parts[0]):
+				"MotionDuration":
+					duration = String(parts[1]).to_float()
+				"Accumulation":
+					if parts.size() >= 3:
+						accum = Vector2(String(parts[1]).to_float(), String(parts[2]).to_float())
+		if duration > 0.0:
+			speed = accum.length() / duration
+	_cache[path] = speed
+	return speed
+
+static func _fields(line: String) -> PackedStringArray:
+	return line.strip_edges().replace("\t", " ").split(" ", false)