
cls();
var x;
var y;
var flag;
var key;
x = 0;
y = 0;
flag = 0;
while(1){
key = inkey();
if(key == 117){
flag = 0;
}
if(key == 100){
flag = 1;
}
if(key == 99){
break;
}
if(flag == 0){
lc(x ,y);
log("-");
}
if(flag == 1){
lc(x, y);
log("_");
}
x = x + 1;
if(x >= 31){
x = 0;
y = y + 1;
}
if(y >= 23){
y = 0;
}
sleep(50);
}
cls();
lc(12, 11);
log("CLEAR!")