/// <summary>
/// Returns whether there is anything solid within a box in 3D space.
/// </summary>
/// <param name="min">The lowest location</param>
/// <param name="max">The highest location</param>
/// <param name="world">The world everything is in</param>
/// <returns>Whether there is anything solid within the block</returns>
public static bool Box(World world, Location min, Location max)
{
foreach (KeyValuePair <Location, Chunk> chunk in world.LoadedChunks)
{
Location cpos = new Location(chunk.Value.X * 30, chunk.Value.Y * 30, chunk.Value.Z * 30);
if (CollisionUtil.BoxContains(cpos, cpos + new Location(30), min, max))
{
// TODO: Less stupid code.
for (int z = 0; z < 30; z++)
{
if (CollisionUtil.BoxContains(cpos + new Location(0, 0, z), cpos + new Location(30, 30, z + 1), min, max))
{
for (int x = 0; x < 30; x++)
{
if (CollisionUtil.BoxContains(cpos + new Location(x, 0, z), cpos + new Location(x + 1, 30, z + 1), min, max))
{
for (int y = 0; y < 30; y++)
{
if (((Material)chunk.Value.Blocks[x, y, z].Type).OccupiesWholeBlock())
{
if (CollisionUtil.BoxContains(cpos + new Location(x, y, z), cpos + new Location(x + 1, y + 1, z + 1), min, max))
{
return(true);
}
}
}
}
}
}
}
}
}
return(false);
}
/// <summary>
/// Returns the closest to the end a box-ray can get through the physical world.
/// </summary>
/// <param name="start">The starting location</param>
/// <param name="end">The ideal ending location</param>
/// <param name="mins">The lower part of the box</param>
/// <param name="maxes">The higher part of the box</param>
/// <param name="world">The world everything is in</param>
/// <param name="bounceback">Whether to jump the collision point back a little</param>
/// <returns>The actual ending location of a ray trace</returns>
public static Location BoxRayTrace(World world, Location mins, Location maxes, Location start, Location end, float bounceback = 0)
{
Location tend = end;
Location normal;
Location fnormal = Location.Zero;
Location low = CollisionUtil.GetLow(start, end);
Location high = CollisionUtil.GetHigh(start, end);
foreach (KeyValuePair <Location, Chunk> chunk in world.LoadedChunks)
{
Location cpos = new Location(chunk.Value.X * 30, chunk.Value.Y * 30, chunk.Value.Z * 30);
if (CollisionUtil.BoxContains(cpos, cpos + new Location(30), low + mins, high + maxes))
{
// TODO: Less stupid code.
for (int z = 0; z < 30; z++)
{
if (CollisionUtil.BoxContains(cpos + new Location(0, 0, z), cpos + new Location(30, 30, z + 1), low + mins, high + maxes))
{
for (int x = 0; x < 30; x++)
{
if (CollisionUtil.BoxContains(cpos + new Location(x, 0, z), cpos + new Location(x + 1, 30, z + 1), low + mins, high + maxes))
{
for (int y = 0; y < 30; y++)
{
if (((Material)chunk.Value.Blocks[x, y, z].Type).OccupiesWholeBlock())
{
Location hit = CollisionUtil.AABBClosestBox(new Location(cpos.X + x, cpos.Y + y, cpos.Z + z),
Location.Zero, Location.One, mins, maxes, start, tend, out normal);
if (!hit.IsNaN())
{
fnormal = normal;
tend = hit;
low = CollisionUtil.GetLow(start, tend);
high = CollisionUtil.GetHigh(start, tend);
}
}
}
}
}
}
}
}
}
return(tend + bounceback * fnormal * 0.001f);
}