## Name

intersection-area -- Returns the size of the intersection of two rectangles.

## Synopsis

(intersection-area x1 y1 w1 h1 x2 y2 w2 h2)

## Description

Returns the size of the intersection of two rectangles.
X1,Y1 and W1 x H1 are the position and size of the first rectangle.
X2,Y2 and W2 x H2 are the position and size of the second rectangle.