19 lines
446 B
Plaintext
19 lines
446 B
Plaintext
local FrictionPreset = class('FrictionPreset')
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function FrictionPreset:initialize(config)
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config = config or {}
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self.B = config.B or 11
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self.C = config.C or 1.15
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self.D = config.D or 1.03
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self.E = config.E or -10
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end
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function FrictionPreset:evaluate(slip)
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local t = math.abs(slip)
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return self.D * math.sin(self.C * math.atan(self.B * t - self.E * (self.B * t - math.atan(self.B * t))))
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end
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return FrictionPreset
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