我有一个tilePanes网格,其中对象(动物)随机放置在它上面,作为图像。在它们实际移动之前,我需要找到一种方法来检查该特定单元格(北,南,东,西)旁边的四个槽/单元格,以查看其中是否有食物来源,如果为真,请移至细胞。如果为false则尝试下一个方向,或者如果全部为假,则只需随机移动。
此刻他们只是随意移动,如果幸运的是,细胞上有食物来源,他们就会吃。这就是我现在拥有的,它确实有用
private void makeAnimalsMove() {
Random random = new Random();
// Mark all animals that they haven't moved yet
for (Slot[] row : slots) {
for (Slot slot : row) {
for (Animal animal : slot.getAnimals()) {
animal.setMoved(false);
}
}
}
// Now we move only those who needs to be moved
for (int row = 0; row < slots.length; row++) {
for (int column = 0; column < slots[row].length; column++) {
final Slot slot = slots[row][column];
for (final Animal animal : slot.getAnimals()) {
if (animal.hasMoved()) {
continue;
}
int[][] directions = {
{row - 1, column}, // north
{row, column + 1}, // east
{row + 1, column}, // south
{row, column - 1}, // west
};
int[] selectedDirection = directions[random.nextInt(directions.length)];
// Move the animal to the chosen direction if possible
final int rowDirection = selectedDirection[0];
final int columnDirection = selectedDirection[1];
if (rowDirection >= 0 && rowDirection < slots.length && columnDirection >= 0 && columnDirection < slots[rowDirection].length) {
Platform.runLater(new Runnable() {
@Override
public void run() {
slot.removeObject(animal);
slots[rowDirection][columnDirection].addObject(animal);
}
});
}
// Decrease the animal's life
animal.setMoved(true);
animal.setLifeSpan(animal.getLifeSpan() - 1);
}
}
}
}
对于'吃'部分有一个单独的方法,如果细胞含有食物来源,将被称为。我只是不确定如何在移动之前检查四个单元格?
答案 0 :(得分:0)
为了我的解决方案,我建议您从TilePane
切换到GridPane
。
您可以轻松绘制元素的网格:
GridPane grid = new GridPane();
grid.add(child, columnIndex, rowIndex);
稍后会检测特定单元格中是否存在某些内容,例如使用此帮助程序:
private static boolean isCellOccupied(GridPane gridPane, int column, int row)
{
return gridPane
.getChildren()
.stream()
.filter(Node::isManaged)
.anyMatch(
n -> Objects.equals(GridPane.getRowIndex(n), row)
&& Objects.equals(GridPane.getColumnIndex(n),
column));
}