+// shaftdia recessdia
+tests = [[2 + 0.5, 6 + 1.0, 4, -4 ],
+ [3 + 0.5, 9 + 1.0, 0, 10 ],
+ [4 + 0.5, 10 + 1.0, 0, 25 ],
+ [5 + 0.5, 10 + 1.0, 17, 4 ],
+ [6 + 0.5, 12 + 1.0, 17, 20 ]];
+
+last_test = tests[len(tests)-1];
+
+blockminx = -5;
+blockminy = -5;
+blockmaxx = 25;
+blockmaxy = 20;