rectangles

Draws a series of rectangles in the same way that rectangle does.

In some situations it can give a significant performance boost to use this function rather than calling rectangle separately for each rectangle.

verts should point to an array of floats with n_rects * 4 elements. Each group of 4 values corresponds to the parameters x1, y1, x2, and y2, and have the same meaning as in rectangle.

Parameters:

verts	an array of vertices
n_rects	number of rectangles to draw