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