public void Start()
{
_ScreenTiles = new Tile[AVERAGE_NUMBER_OF_TILES_ON_SCREEN];
_Editor = GetComponent<TileMap>();
}
public void Build(Transform transform)
{
if (_TileMap == null)
_TileMap = GetComponent<TileMap>();
_TileMap.Awake();
Map<Sprite> tiles = _TileMap.Data;
List<Rect> boxes = new List<Rect>();
for (int bottom = 0; bottom < tiles.Height; bottom++)
for (int left = 0; left < tiles.Width; left++)
{
Sprite tile = tiles[left, bottom];
if (tile != null)
{
bool contains;
int right = tiles.Width - 1, top = tiles.Height - 1;
for (int dx = left; dx < tiles.Width; dx++)
{
contains = false;
foreach (Rect box in boxes)
if (box.Contains(new Vector2(dx, bottom)))
{
contains = true;
break;
}
if (contains || (Array.IndexOf(CollidableTiles, tiles[dx, bottom]) == -1))
{
right = dx - 1;
break;
}
for (int dy = bottom + 1; dy < tiles.Height; dy++)
{
contains = false;
foreach (Rect box in boxes)
if (box.Contains(new Vector2(dx, dy)))
{
contains = true;
break;
}
if (contains || ((top >= dy) && (Array.IndexOf(CollidableTiles, tiles[dx, dy]) == -1)))
{
top = dy - 1;
break;
}
}
}
int width = right - left + 1;
int height = top - bottom + 1;
if ((width > 0) && (height > 0))
{
GameObject gameObject = new GameObject("BoxCollider2D");
//gameObject.hideFlags = HideFlags.HideInHierarchy;
BoxCollider2D boxCollider2D = gameObject.AddComponent<BoxCollider2D>();
boxCollider2D.size = new Vector2(width * _TileMap.UnitWidth, height * _TileMap.UnitHeight);
boxCollider2D.offset = 0.5f * boxCollider2D.size;
gameObject.transform.position = _TileMap.TileToWorld(left + _TileMap.Left, bottom + _TileMap.Bottom);
gameObject.transform.parent = transform;
gameObject.isStatic = true;
boxes.Add(new Rect(left, bottom, width, height));
//Debug.Log(new Rect(left, bottom, right - left + 1, top - bottom + 1));
left = right;
}
}
}
}
private void EraseAt(TileMap tilemap, int x, int y)
{
int dx = x + tilemap.BrushWidth;
int dy = y + tilemap.BrushHeight;
for (int j = y; j < dy; j++)
for (int i = x; i < dx; i++)
tilemap.EditorEraseTileAt(i, j);
}
private void SetTileDefault(TileMap tilemap, int x, int y)
{
if (_SelectedTile != null)
{
Sprite info = _SelectedTile;
int dx = x + tilemap.BrushWidth;
int dy = y + tilemap.BrushHeight;
for (int j = y; j < dy; j++)
for (int i = x; i < dx; i++)
tilemap.EditorSetTileAt(i, j, info);
}
}
private void DrawGrid(TileMap tilemap, Vector3 mousePos)
{
Camera camera = Camera.current;
Rect cameraViewport = camera.rect;
Vector2 cameraMin = camera.ViewportToWorldPoint(cameraViewport.min);
Vector2 cameraMax = camera.ViewportToWorldPoint(cameraViewport.max);
Vector3 tileSize = new Vector3(
tilemap.TileWidth / tilemap.PixelsToUnits,
tilemap.TileHeight / tilemap.PixelsToUnits
);
Vector3 tilemapPosition = tilemap.transform.position;
int horz = Mathf.CeilToInt((cameraMax.x - cameraMin.x) / tileSize.x);
int vert = Mathf.CeilToInt((cameraMax.y - cameraMin.y) / tileSize.y);
Vector3 from = new Vector3(
cameraMin.x - (cameraMin.x - tilemapPosition.x) % tileSize.x - tileSize.x,
cameraMax.y,
tilemapPosition.z
);
Vector3 to = from;
to.y = cameraMin.y;
Handles.color = new Color(1, 1, 1, 0.125f);
for (int i = 0; i < horz; i++)
{
from.x += tileSize.x;
to.x = from.x;
Handles.DrawLine(from, to);
}
from = new Vector3(
cameraMin.x,
cameraMax.y - (cameraMax.y - tilemapPosition.y) % tileSize.y + tileSize.y,
tilemapPosition.z
);
to = from;
to.x = cameraMax.x;
for (int i = 0; i < vert; i++)
{
from.y -= tileSize.y;
to.y = from.y;
Handles.DrawLine(from, to);
}
Handles.color = new Color(1, 1, 1, 0.25f);
Vector3 min = tilemap.TileToWorld(tilemap.Left, tilemap.Bottom);
Vector3 max = min;
max.x += tilemap.Width * tilemap.UnitWidth;
max.y += tilemap.Height * tilemap.UnitHeight;
from = min;
to = min;
to.x = max.x;
Handles.DrawLine(from, to);
Handles.DrawLine(to, max);
from.y = max.y;
Handles.DrawLine(from, max);
Handles.DrawLine(from, min);
// mouse
Handles.color = Color.white;
min = mousePos;
max = mousePos;
max.x += tilemap.BrushWidth * tilemap.UnitWidth;
max.y += tilemap.BrushHeight * tilemap.UnitHeight;
from = min;
to = min;
to.x = max.x;
Handles.DrawLine(from, to);
Handles.DrawLine(to, max);
from.y = max.y;
Handles.DrawLine(from, max);
Handles.DrawLine(from, min);
//Debug.Log(world);
}