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// Let's make some constant names
#declare CS_Medium = 1;
#declare CS_Hard = 3;
#declare CS_Easy = 5;
// Let the user choose the method to use
#declare Complexity_Switch = CS_Medium; // or CS_Easy or CS_Hard
// Do something dependent on the user's choice
#switch (Complexity_Switch)
#case (CS_Easy)
// This statement is done if Complexity_Switch is CS_Easy
#declare MyShape = box { -<1, 1, 1>, <1, 1, 1> }
#break // End of this case section
#range (CS_Medium, CS_Hard)
// This statement is done if Complexity_Switch is CS_Medium
// or CS_Hard or anything in between
#declare MyShape = torus { 1, 0.5 }
#break // End of this range section
#else
// This statement is done if none of the above match
#declare MyShape = sphere { <0, 0, 0>, 1 }
#end // End of switch statement
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