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GREEN: implement plateau boundaries with wrapping

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fiatcode 2026-02-24 10:49:58 +07:00
parent 1078e1947e
commit 7632401aa4
1 changed files with 15 additions and 5 deletions
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20
lib/mars_rover.dart
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@ -2,8 +2,16 @@ class Rover {
int x; int x;
int y; int y;
String direction; String direction;
final int plateauWidth;
final int plateauHeight;
Rover({required this.x, required this.y, required this.direction}); Rover({
required this.x,
required this.y,
required this.direction,
this.plateauWidth = 100,
this.plateauHeight = 100,
});
void turnLeft() { void turnLeft() {
const leftTurns = { const leftTurns = {
@ -28,16 +36,18 @@ class Rover {
void moveForward() { void moveForward() {
switch (direction) { switch (direction) {
case 'N': case 'N':
y += 1; y = (y + 1) % (plateauHeight + 1);
break; break;
case 'E': case 'E':
x += 1; x = (x + 1) % (plateauWidth + 1);
break; break;
case 'S': case 'S':
y -= 1; y = (y - 1) % (plateauHeight + 1);
if (y < 0) y += plateauHeight + 1;
break; break;
case 'W': case 'W':
x -= 1; x = (x - 1) % (plateauWidth + 1);
if (x < 0) x += plateauWidth + 1;
break; break;
} }
} }