grid method
Implementation
List<Rect> grid(int horizontalCount, int verticalCount) {
final textures = <Rect>[];
final incrementW = width / horizontalCount;
final incrementH = height / verticalCount;
for (int i = 0; i < horizontalCount; i++) {
for (int j = 0; j < verticalCount; j++) {
final rect = Rect.fromLTWH(
left + i * incrementW,
top + j * incrementH,
incrementW,
incrementH,
);
textures.add(rect);
}
}
return textures;
}