LayoutUtility for Unity World Space.

LayoutUtility.cs

namespace MyUtility
{
    public static class LayoutUtility
    {
        public static float[] GetXPosLayout(int totalObj, float maxWidth, float objXSize, float space, float xPedding)
        {
            float maxSize = maxWidth - xPedding - xPedding; //Left and Right
            float occupiedArea = (totalObj * objXSize);
            float halfObjSize = objXSize * 0.5f;

            if (totalObj >= 2)
                occupiedArea += (totalObj - 1) * space;

            float difference = (maxSize - occupiedArea) * 0.5f;

            float[] xPos = new float[totalObj];
            float starting_x_value = maxWidth * -0.5f;// localSpace

            starting_x_value += xPedding;
            starting_x_value += difference;
            starting_x_value += halfObjSize;
            for (int i = 0; i < totalObj; i++)
            {
                xPos[i] = starting_x_value;
                starting_x_value += (objXSize + space);
            }
            return xPos;
        }
    }
}