var i, r1, r0, r2, s1;
function A() {
i = (typeof i == 'number' ? i : 0) + 1;
r1 = (typeof r1 == 'number' ? r1 : 0) + -2;
r0 = Math.random() * 360;
r2 = (typeof r2 == 'number' ? r2 : 0) + 7;
s1 = scan(r2);
if (s1 <= 70) {
stop();
cannon(r2 - 0, s1);
} else {
swim(r1);
}
}
function B() {
if (loc_x() <= 10) {
swim(r1 - 90);
} else if (loc_y() <= 10) {
swim(r1 - 90);
} else if (loc_x() >= 90) {
swim(r1 - 90);
} else if (loc_y() >= 90) {
swim(r1 - 90);
}
}
while (true) {
A();
B();
}