Polar coordinates?

Now I need to compare the x value of two items in my array. I am using a print statement to check the x coordinate and I get values from -222 to 600. When the x value should only be between a set of positive values 0-320.

Are the objects in my array working in polar coordinates? And if so, how do I convert them. I am trying to check the difference between two items in my array to determine how close they are together. See my code below.

function pAccuracy()
                
                accuracy =  array[ obj ].x - array[ obj - 1 ].x
                
                return accuracy 
                
        end
        
        function checkScore()
        
                if pAccuracy() == 0 and scoreFound == false then --perfectly aligned.
                
                        print("Perfect")
                        scoreFound = true
                        
                elseif pAccuracy() <= 5 or pAccuracy() >= -5 and scoreFound == false then -- aligned with atleast a 5px gap either side.
                
                        print("Almost Perfect.")
                        scoreFound = true
                
                end
                
                scoreFound = false
                        
        end

views:1313 update：2011/10/11 15:24:38


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