private void UpdateLighting()
{
Debug.Log("Updating Lighting");
//Clear lit tiles
foreach (GameObject t in tiles)
{
FTR_Tile tile = t.GetComponent <FTR_Tile>();
if (tile.Type == FTRTileTypeEnum.LIT)
{
tile.Clear();
}
}
//Calculate potential colors for tiles
foreach (GameObject c in crystals)
{
Debug.Log("Calculating Crystal");
PropagateSource(c, c.GetComponent <FTR_Tile>().EColor, "up");
PropagateSource(c, c.GetComponent <FTR_Tile>().EColor, "down");
PropagateSource(c, c.GetComponent <FTR_Tile>().EColor, "left");
PropagateSource(c, c.GetComponent <FTR_Tile>().EColor, "right");
//TODO: Propagate other sides
}
foreach (GameObject t in tiles)
{
t.GetComponent <FTR_Tile>().SetLighting();
}
}
private void PropagateSource(GameObject tile, ColorEnum color, string direction)
{
Vector2 start = tile.transform.position;
Vector2 dir = new Vector2();
switch (direction.ToLower())
{
case "up":
dir.y = 0.9f;
break;
case "down":
dir.y = -0.9f;
break;
case "left":
dir.x = -0.9f;
break;
case "right":
dir.x = 0.9f;
break;
}
Vector2 end = start + dir;
//Disable so raycast doesn't hit origin tile
tile.GetComponent <BoxCollider2D>().enabled = false;
RaycastHit2D hit = Physics2D.Linecast(start, end);
tile.GetComponent <BoxCollider2D>().enabled = true;
if (hit.transform == null)
{
return;
}
FTR_Tile s_tile = hit.transform.gameObject.GetComponent <FTR_Tile>();
if (s_tile == null)
{
return;
}
if (s_tile.Type == FTRTileTypeEnum.WALL || s_tile.Type == FTRTileTypeEnum.CRYSTAL)
{
return;
}
GameObject nextTile = hit.transform.gameObject;
s_tile.Type = FTRTileTypeEnum.LIT;
s_tile.AddSource(color);
//TODO: Recurse
PropagateSource(nextTile, color, direction);
}
private void PlaceCrystal(FTR_Tile tile)
{
if (tile.Type == FTRTileTypeEnum.CLEAR)
{
tile.SetCrystal(currentColor);
crystals.Add(tile.gameObject);
}
else if (tile.Type == FTRTileTypeEnum.CRYSTAL)
{
tile.RemoveCrystal();
crystals.Remove(tile.gameObject);
}
UpdateLighting();
}
public void GetTileClick()
{
Collider2D hit = Physics2D.OverlapPoint(Camera.main.ScreenToWorldPoint(Input.mousePosition));
if (hit == null)
{
return;
}
FTR_Tile tile = hit.gameObject.GetComponent <FTR_Tile>();
if (tile == null)
{
return;
}
PlaceCrystal(tile);
}