public void SetupFragments(LevelConfig levelConfig)
{
rows = levelConfig.rows;
columns = levelConfig.columns;
source = EntryPoint.instance.loadAsset <Sprite>("sprites", levelConfig.id + ".jpg") as Sprite;
Texture2D texture = source.texture;
fragments = new Fragment[rows * columns];
// 切成 1 : heightUnit 的矩形
pixelsPerUnitX = (float)texture.width / (float)columns;
pixelsPerUnitY = (float)texture.height / (float)rows;
float height = pixelsPerUnitY / pixelsPerUnitX;
for (int i = 0; i < fragments.Length; i++)
{
float x = Random.Range(minX, maxX);
float y = Random.Range(minY, maxY);
FragmentGroup group = new FragmentGroup(this);
GameObject instance = Object.Instantiate(fragmentPrefab, new Vector3(x, y, 0f), Quaternion.identity, fragmentsRoot) as GameObject;
Fragment fragment = instance.GetComponent <Fragment> ();
if (fragment == null)
{
fragment = instance.AddComponent <Fragment>();
}
group.AddMember(fragment);
fragment.index = i;
fragment.row = i / columns;
fragment.column = i % columns;
fragment.group = group;
Rect rect = new Rect(fragment.column * pixelsPerUnitX, (rows - fragment.row - 1) * pixelsPerUnitY, pixelsPerUnitX, pixelsPerUnitY);
fragment.spriteRenderer.sprite = Sprite.Create(texture,
rect,
new Vector2(0.5f, 0.5f),
pixelsPerUnitX);
fragment.GetComponent <BoxCollider2D>().size = new Vector3(1.0f, height, 1.0f);
fragment.fragmentManager = this;
fragments [i] = fragment;
group.SetSortingOrder(i);
groups.Add(group);
}
CompressSortingOrderRange();
}
void OnMouseDown()
{
group.SetSortingOrder(fragmentManager.MaxSortingOrder + 1);
fragmentManager.CompressSortingOrderRange();
}
