22 lines
429 B
Lua
22 lines
429 B
Lua
makeclass('NilIsZero') -- This is intended to be used as a metatable
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makeclass('login')
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function NilIsZero.__index(t,k)
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return 0
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end
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function NilIsZero.__newindex(t,k,v)
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if v~=nil and v~=0 then rawset(t,k,v) end
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end
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function seq(a,b,c) return a<=b and b<=c end
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function bound(a,b,c)
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if b<a then return b elseif b>c then return c else return b end
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end
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function lerp(a,b,c,d,e)
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return d+(e-d)*(a-b)/(c-b)
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end
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