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- #include "franca.h"
- Robot Tracer; // c4search.cpp
- void go()
- {
- if (Tracer.seenowall())// Check for a wall
- {
- // do this only if next square is clear:
- Tracer.mark(4); // mark in light blue
- Tracer.step(); // step ahead
- Tracer.say("OK"); // say: OK!
- }
- }
- void mainprog()
- {
- int where;
- do
- {
- where=ask("Which way should I go?");
- Tracer.face(where);
- go();
- }
- while (yesno("Shall we go on?"));
- }
-
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