/// <summary> Determines whether this bounding box intersects
/// the given bounding box on any axes. </summary>
public bool Intersects( AABB other )
{
if( Max.X >= other.Min.X && Min.X <= other.Max.X ) {
if( Max.Y < other.Min.Y || Min.Y > other.Max.Y ) {
return false;
}
return Max.Z >= other.Min.Z && Min.Z <= other.Max.Z;
}
return false;
}
bool PushbackPlace( PickedPos selected, AABB blockBB )
{
Vector3 newP = game.LocalPlayer.Position;
Vector3 oldP = game.LocalPlayer.Position;
// Offset position by the closest face
if( selected.BlockFace == CpeBlockFace.XMax )
newP.X = blockBB.Max.X + 0.5f;
else if( selected.BlockFace == CpeBlockFace.ZMax )
newP.Z = blockBB.Max.Z + 0.5f;
else if( selected.BlockFace == CpeBlockFace.XMin )
newP.X = blockBB.Min.X - 0.5f;
else if( selected.BlockFace == CpeBlockFace.ZMin )
newP.Z = blockBB.Min.Z - 0.5f;
else if( selected.BlockFace == CpeBlockFace.YMax )
newP.Y = blockBB.Min.Y + 1 + Entity.Adjustment;
else if( selected.BlockFace == CpeBlockFace.YMin )
newP.Y = blockBB.Min.Y - game.LocalPlayer.CollisionSize.Y - Entity.Adjustment;
Vector3I newLoc = Vector3I.Floor( newP );
bool validPos = newLoc.X >= 0 && newLoc.Y >= 0 && newLoc.Z >= 0 &&
newLoc.X < game.World.Width && newP.Z < game.World.Length;
if( !validPos ) return false;
game.LocalPlayer.Position = newP;
if( !game.LocalPlayer.Hacks.Noclip
&& game.LocalPlayer.TouchesAny( CannotPassThrough ) ) {
game.LocalPlayer.Position = oldP;
return false;
}
game.LocalPlayer.Position = oldP;
LocationUpdate update = LocationUpdate.MakePos( newP, false );
game.LocalPlayer.SetLocation( update, false );
return true;
}
bool IntersectsOtherPlayers( Vector3 pos, byte newType )
{
AABB blockBB = new AABB( pos + game.BlockInfo.MinBB[newType],
pos + game.BlockInfo.MaxBB[newType] );
for( int id = 0; id < 255; id++ ) {
Player player = game.Players[id];
if( player == null ) continue;
AABB bounds = player.CollisionBounds;
bounds.Min.Y += 1/32f; // when player is exactly standing on top of ground
if( bounds.Intersects( blockBB ) ) return true;
}
return false;
}
bool CheckIsFree( PickedPos selected, byte newBlock )
{
Vector3 pos = (Vector3)selected.TranslatedPos;
if( !CannotPassThrough( newBlock ) ) return true;
if( IntersectsOtherPlayers( pos, newBlock ) ) return false;
AABB blockBB = new AABB( pos + game.BlockInfo.MinBB[newBlock],
pos + game.BlockInfo.MaxBB[newBlock] );
AABB localBB = game.LocalPlayer.CollisionBounds;
if( game.LocalPlayer.Hacks.Noclip || !localBB.Intersects( blockBB ) ) return true;
HacksComponent hacks = game.LocalPlayer.Hacks;
if( hacks.CanPushbackBlocks && hacks.PushbackPlacing && hacks.Enabled )
return PushbackPlace( selected, blockBB );
localBB.Min.Y += 0.25f + Entity.Adjustment;
if( localBB.Intersects( blockBB ) ) return false;
// Push player up if they are jumping and trying to place a block underneath them.
Vector3 p = game.LocalPlayer.Position;
p.Y = pos.Y + game.BlockInfo.MaxBB[newBlock].Y + Entity.Adjustment;
LocationUpdate update = LocationUpdate.MakePos( p, false );
game.LocalPlayer.SetLocation( update, false );
return true;
}
/// <summary> Determines whether this bounding box entirely contains
/// the given bounding box on all axes. </summary>
public bool Contains( AABB other )
{
return other.Min.X >= Min.X && other.Min.Y >= Min.Y && other.Min.Z >= Min.Z &&
other.Max.X <= Max.X && other.Max.Y <= Max.Y && other.Max.Z <= Max.Z;
}
/// <summary> Determines whether this bounding box intersects
/// the given bounding box on the Z axis. </summary>
public bool ZIntersects( AABB box )
{
return Max.Z >= box.Min.Z && Min.Z <= box.Max.Z;
}
/// <summary> Determines whether this bounding box intersects
/// the given bounding box on the Y axis. </summary>
public bool YIntersects( AABB box )
{
return Max.Y >= box.Min.Y && Min.Y <= box.Max.Y;
}
/// <summary> Determines whether this bounding box intersects
/// the given bounding box on the X axis. </summary>
public bool XIntersects( AABB box )
{
return Max.X >= box.Min.X && Min.X <= box.Max.X;
}
