REPEAT 500 [DOT
LIST RANDOM 50 RANDOM 50]
PU SETXY LIST RANDOM 50 RANDOM 50
DOT?
Result: FALSE
PU SETXY LIST RANDOM 50 RANDOM 50
DOT?
Result: TRUE
| DOT? | |
| Syntax | DOT? |
| Explanation | DOT? reports TRUE if a dot is present at
the turtle's position; otherwise it reports FALSE. A dot
is present if the color under the turtle is not the same
as the background color reported by BACKGROUND. |
| Examples | (The first
instruction below places 100 dots randomly in an area.
The second instruction moves the turtle randomly in the
same area and prints a message each time it detects the
presence of a dot.) REPEAT 500 [DOT
LIST RANDOM 50 RANDOM 50]
|
