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Merge pull request #68 from billmakes/master
vec2: add meta functions for mathematical operators
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commit
90f46c2c6a
27
vec2.lua
27
vec2.lua
@ -453,6 +453,33 @@ function vec2:maxcomp()
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return math.max(self.x, self.y)
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end
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-- meta functions for mathmatical operations
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function vec2.__add(a, b)
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return a:vector_add_inplace(b)
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end
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function vec2.__sub(a, b)
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return a:vector_sub_inplace(b)
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end
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function vec2.__mul(a, b)
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if type(a) == "number" then
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return b:scalar_mul_inplace(a)
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elseif type(b) == "number" then
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return a:scalar_mul_inplace(b)
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else
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return a:vector_mul_inplace(b)
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end
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end
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function vec2.__div(a, b)
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if type(b) == "number" then
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return a:scalar_div_inplace(b)
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else
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return a:vector_div_inplace(b)
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end
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end
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-- mask out min component, with preference to keep x
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function vec2:major_inplace()
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if self.x > self.y then
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