} else {
// Draw square.
// **NOTE: Is the polygon facing in the right direction?
+
+ if ( (x1 - x2) / (z1 - z2)) {
+ printf("(%f, %f), (%f, %f) is not square!\n", x1, z1, x2, z2);
+ }
+
+ //printf("Drawing square (%f, %f), (%f, %f), (%f, %f), (%f, %f)\n", x1, z1, x1, z2, x2, z2, x2, z1);
glBegin(GL_QUADS);
glNormal3f(0,1,0);
glVertex3f(x1, 0.0, z1);