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
.
| verts |
an array of vertices |
| n_rects |
number of rectangles to draw |