-void drawSquare(int recurseLevel, float x1, float z1, float x2, float z2) {
-
- if ( drawFloorRecurse != recurseLevel ) {
- // Calculate middle points
- float xm = (x1 + x2) / 2.0;
- float zm = (z1 + z2) / 2.0;
-
- // Increment recursion level
- int rnew = recurseLevel + 1;
-
- // Split into four sub-quads
- drawSquare(rnew, x1, z1, xm, zm);
- drawSquare(rnew, x1, zm, xm, z2);
- drawSquare(rnew, xm, zm, x2, z2);
- drawSquare(rnew, xm, z1, x2, zm);
-
- } else {
- // Draw square.
- // **NOTE: Is the polygon facing in the right direction?
- srand ( time(NULL) );
- if ( rand() % 10 < 5 ) {
- return;
- }
- glBegin(GL_QUADS);
- glNormal3f(0,1,0);
- glVertex3f(x1, 0.0, z1);
- glVertex3f(x1, 0.0, z2);
- glVertex3f(x2, 0.0, z2);
- glVertex3f(x2, 0.0, z1);
- glEnd();