private void RandomGems(GenerationProgress progress)
{
int num = (int)((float)Main.maxTilesX * 0.12f);
int tile = mod.TileType("CrystalTiles");
for (int i = 0; i < num; i++)
{
int x = WorldGen.genRand.Next(20, Main.maxTilesX - 20);
int y = WorldGen.genRand.Next((int)Main.rockLayer, Main.maxTilesY - 300);
Tile tileSafely = Framing.GetTileSafely(x, y);
if (!tileSafely.active() && !tileSafely.lava() && !Main.wallDungeon[(int)tileSafely.wall] && tileSafely.wall != 27 && TileLoader.CanPlace(x, y, tile))
{
WorldGen.PlaceTile(x, y, tile, true, false, -1, 0);
tileSafely.frameX = (short)(WorldGen.genRand.Next(1) * 18);
}
}
}