Vector3 Class

-- Author:          Kernell
-- Version:         1.0.0

class "Vector3"
{
    X = 0;
    Y = 0;
    Z = 0;
};

function Vector3:Vector3( X, Y, Z ) -- constructor
    self.X = X or self.X;
    self.Y = Y or self.X;
    self.Z = Z or self.X;
end

-- methods

function Vector3:Dot( vector )
    return self.X * vector.X + self.Y * vector.Y + self.Z * vector.Z;
end

function Vector3:Length()
    return math.sqrt( self.X * self.X + self.Y * self.Y + self.Z * self.Z );
end

function Vector3:Distance( vector )
    return getDistanceBetweenPoints3D( self.X, self.Y, self.Z, vector.X, vector.Y, vector.Z );
end

function Vector3:Offset( distance, rotation )
    distance = tonumber( distance ) or 0;
    rotation = tonumber( rotation ) or 0;

    return Vector3( self.X + ( ( math.cos( math.rad( rotation + 90 ) ) ) * distance ), self.Y + ( ( math.sin( math.rad( rotation + 90 ) ) ) * distance ), self.Z );
end

function Vector3:Add( vector )
    return Vector3( self.X + vector.X, self.Y + vector.Y, self.Z + vector.Z );
end

function Vector3:Sub( vector )
    return Vector3( self.X - vector.X, self.Y - vector.Y, self.Z - vector.Z );
end

function Vector3:Mul( vector )
    return Vector3( self.X * vector.X, self.Y * vector.Y, self.Z * vector.Z );
end

function Vector3:Equality( vector )
    return self.X == vector.X and self.Y == vector.Y and self.Z == vector.Z;
end

function Vector3:ToString()
    return '(' .. self.X .. ',' .. self.Y .. ',' .. self.Z .. ')';
end

function Vector3:Concat( mixed )
    return tostring( self ) .. tostring( mixed );
end

Vector3.DistanceTo  = Vector3.Distance;

-- Overloading Operators
Vector3.__len       = Vector3.Length;
Vector3.__add       = Vector3.Add;
Vector3.__sub       = Vector3.Sub;
Vector3.__mul       = Vector3.Mul;
Vector3.__eq        = Vector3.Equality;
Vector3.__tostring  = Vector3.ToString;
Vector3.__concat    = Vector3.Concat;