public void Update(WorldRender rend)
{
if (pendingUpdate || state == ChunkState.Empty)
{
FillSprites(rend);
pendingUpdate = false;
}
}
// Clears all SpriteRenderer objects from this
// chunk and returns them to a pool.
public void ClearSprites(WorldRender rend)
{
for (int i = 0; i < rects.Count; ++i)
{
rend.ReturnTileRect(rects[i]);
}
rects.Clear();
state = ChunkState.Empty;
}
// Adds sprites that fit the tile data for this chunk,
// making it able to be rendered.
private void FillSprites(WorldRender rend)
{
if (rects.Count > 0)
{
ClearSprites(rend);
}
for (int i = 0; i < Size2; ++i)
{
Tile tile = tiles[i];
if (tile != TileType.Air)
{
mask.Set(i, tile.data.visible);
}
else
{
mask.Set(i, false);
}
}
int x = 0, y = 0;
while (true)
{
SpriteRect rect = GetNextRectStart(x, y);
if (rect == null)
{
break;
}
RectScanX(rect);
RectScanY(rect);
SetSprite(rend, rect);
x = rect.startX + rect.width;
y = rect.startY;
if (x == Size)
{
x = 0;
++y;
}
}
state = ChunkState.Filled;
}
// Fills an area of the chunk with a tile as determined by
// the given SpriteRect object.
private void SetSprite(WorldRender rend, SpriteRect rect)
{
Tile tile = rect.tile;
SpriteRenderer tileRect = rend.GetTileRect();
tileRect.sprite = tile.data.sprite;
tileRect.sortingOrder = tile.data.sortingOrder;
tileRect.color = new Color(1.0f, 1.0f, 1.0f, tile.data.alpha);
tileRect.drawMode = rect.width > 1 || rect.height > 1 ? SpriteDrawMode.Tiled : SpriteDrawMode.Simple;
tileRect.size = new Vector2(rect.width, rect.height);
Transform t = tileRect.transform;
t.position = new Vector3(wPos.x + rect.startX, wPos.y + rect.startY);
t.localScale = Vector3.one;
rects.Add(tileRect);
}
