////////////////
/// <summary>
/// Drops from a given point to the ground.
/// </summary>
/// <param name="worldPos"></param>
/// <param name="invertGravity"></param>
/// <param name="isGround">Defines what "ground" is.</param>
/// <param name="groundPos"></param>
/// <returns>`true` if a ground point was found within world boundaries.</returns>
public static bool DropToGround(Vector2 worldPos,
bool invertGravity,
IsGround isGround,
out Vector2 groundPos)
{
int furthestTileY = invertGravity ? 42 : Main.maxTilesY - 42;
return(TileWorldLibraries.DropToGround(worldPos, invertGravity, isGround, furthestTileY, out groundPos));
}
/// <summary>
/// Drops from a given point to the ground.
/// </summary>
/// <param name="worldPos"></param>
/// <param name="invertGravity"></param>
/// <param name="isGround">Defines what "ground" is.</param>
/// <param name="furthestTileY">Limit to check tiles down (or up) to before giving up.</param>
/// <param name="groundPos"></param>
/// <returns>`true` if a ground point was found within world boundaries.</returns>
public static bool DropToGround(Vector2 worldPos,
bool invertGravity,
IsGround isGround,
int furthestTileY,
out Vector2 groundPos)
{
bool hitGround = true;
int tileX = (int)worldPos.X >> 4;
int tileY = (int)worldPos.Y >> 4;
if (invertGravity)
{
do
{
tileY--;
if (tileY >= furthestTileY)
{
hitGround = false;
break;
}
} while(!isGround(tileX, tileY));
}
else
{
do
{
tileY++;
if (tileY >= furthestTileY)
{
hitGround = false;
break;
}
} while(!isGround(tileX, tileY));
}
groundPos = new Vector2(worldPos.X, tileY * 16);
return(hitGround);
}
