54 lines
1.1 KiB
Lua
54 lines
1.1 KiB
Lua
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--!strict
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local Flags = {}
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Flags.__index = Flags
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export type Flags = { Value: number }
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export type Class = typeof(setmetatable({} :: Flags, Flags))
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function Flags.new(...: number): Class
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local flags = { Value = bit32.bor(...) }
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return setmetatable(flags, Flags)
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end
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function Flags.__call(self: Class): number
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return self.Value
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end
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function Flags.Get(self: Class): number
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return self.Value
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end
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function Flags.Set(self: Class, ...: number)
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self.Value = bit32.bor(...)
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end
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function Flags.Copy(self: Class, flags: Class)
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self.Value = flags.Value
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end
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function Flags.Add(self: Class, ...: number)
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self.Value = bit32.bor(self.Value, ...)
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end
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function Flags.Has(self: Class, ...: number): boolean
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local mask = bit32.bor(...)
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return bit32.btest(self.Value, mask)
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end
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function Flags.Remove(self: Class, ...: number)
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local mask = bit32.bor(...)
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local invert = bit32.bnot(mask)
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self.Value = bit32.band(self.Value, invert)
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end
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function Flags.Band(self: Class, ...: number)
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self.Value = bit32.band(self.Value, ...)
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end
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function Flags.Clear(self: Class)
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self.Value = 0
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end
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return Flags
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