38 lines
1.0 KiB
Lua
38 lines
1.0 KiB
Lua
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---clamp
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---@param v number @number
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---@param Min number @min
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---@param Max number @max
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---@return number @clamp v between Min and Max
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function math.clamp(v, Min, Max)
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Min = math.min(Min, Max)
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Max = math.max(Min, Max)
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if v < Min then
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return Min
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end
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if v > Max then
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return Max
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end
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return v
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end
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---clamp
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---@param a number @First number to compare
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---@param b number @Second number to compare
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---@param Tolerance number @Maximum allowed difference for considering them as 'nearly equal'
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---@return boolean @true if a and b are nearly equal
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function math.isNearlyEqual(a, b, Tolerance)
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if Tolerance == nil then
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Tolerance = 0.01
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end
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return math.abs(a - b) <= Tolerance
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end
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--- 在圆中随机生成一个点
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function math.RandomCirclePoint(Radius, Center)
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local angle = math.random() * 2 * math.pi;
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local tr = Radius * math.sqrt(math.random());
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local x = Center.X + tr * math.cos(angle);
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local y = Center.Y + tr * math.sin(angle);
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return { X = x, Y = y };
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end
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