ExitState and EnterState already take care of their own cleanup. Enter play mode, and you can now move pieces for both sides. Capturing pieces is an important part of chess. Here, GameManager looks up which piece is at the target location.
This piece is added to the list of captured pieces for the current player. To capture a piece, you move on top of it. So the code to call this step should go in MoveSelector. In Update , find the Reference Point 3 comment and replace it with the following statement:. The previous if statement checked to see if there was a piece at the target location.
Since the earlier move generation filtered out tiles with friendly pieces, a tile that contains a piece must be an enemy piece. A chess game ends when a player captures the opposing King.
If so, the game is over. But how do you stop the game? One way is to remove both the TileSelector and MoveSelector scripts on the board.
In GameManager. The next ExitState and EnterState calls will only re-enable one of them, which will keep the game going. Destroy is not just for GameObject classes; it can be used to remove a component attached to an object as well. Hit play. Manouever a pawn and take the enemy king.
Piece and its specific subclasses are an excellent way to encapsulate the special movement rules. You can use techniques from Pawn to add movement to some of the other pieces. Pieces that move a single space in different directions, such as the King and Knight, are set up in the same way.
See if you can implement those movement rules. Pieces that can move multiple spaces in one direction are more challenging. These are the Bishop, Rook and Queen pieces. Piece has premade lists of the directions the Bishop and Rook can move as a starting point. These are all directions from the current tile location of the piece. The foreach loops over each direction.
For each direction, there is a second loop that generates enough new locations to move the piece off the board. Since the list of locations will be filtered for off-board locations, you just need enough to make sure you don't miss any tiles. In each step, generate a GridPoint for the location and add it to the list.
Then check to see if that location currently has a piece. If it does, break out of the inner loop to go to the next direction. The break is included because an existing piece will block further movement. Again, later in the chain, you filter out locations with friendly pieces, so you don't have to worry about that here.
The Queen's movement is a combination of the Bishop and Rook; the base class has an array of directions for each piece. It would be helpful if you could combine the two. The only thing that's different here is that you're turning the direction array into a List.
The advantage of the List is that you can add the directions from the other array, making one List with all of the directions. The rest of the method is the same as the Bishop code. There are several things you can do at this point, like finish the movement for the King, Knight and Rook. If you're stuck at any point, check out the final project code in the project materials download. There are a few special rules that are not implemented here, such as allowing a Pawn's first move to be two spaces instead of just one, castling and a few others.
The general pattern is to add variables and methods to GameManager to keep track of those situations and check if they're available when the piece is moving. If available, then add the appropriate locations in MoveLocations for that piece. There are also visual enhancements you can make. For example, the pieces can move smoothly to their target location or the camera can rotate to show the other player's view during their turn.
If you have any questions or comments, or just want to show off your cool 3D chess game, join the discussion below! The raywenderlich. Get a weekly digest of our tutorials and courses, and receive a free in-depth email course as a bonus! Learn iOS, Swift, Android, Kotlin, Dart, Flutter and more with the largest and highest-quality catalog of video courses and books on the internet. He has done web, Toby is a software developer inspired by games. When he's not programming or otherwise staring at a screen, you can find him Tammy Coron is an independent creative professional, author of Apple Game Frameworks and Technologies, and the maker behind the Sean is a software engineer by day, and hobbyist game and tools developer by night.
He loves working with Unity, and is also a Eric is a belgian hobbyist game dev and has been so for more than 15 years. A raywenderlich. Note: You should have some familiarity with Unity and the C language. If you want to skill up in C , the Beginning C with Unity Screencast series is a great place to start. Note: Whenever you create new scripts, take a moment to move them into the appropriate folder.
This keeps your Assets folder organized. Vector2Int has two integer values: x and y. When you need to place an object in the scene, you need the Vector3 point. Vector3 has three float values: x, y and z. Board deals only with displaying and highlighting pieces.
GameManager keeps track of the GridPoint values of the piece locations. It also has helper methods to answer questions about where pieces are and to which player they belong. You can tweak the colors by adjusting the materials. I am the Queen, you captured my pawn, prepare to die. Note: If you need to distinguish the forward from the backward direction, or the left from the right, you need to take into account that the black and white pieces are moving in different directions.
For chess, this only matters for pawns, but other games might require that distinction. Games Game Tech Tutorials. Download Materials. Sign up now Website. All videos. All books. One low price. Learn more. Mark Complete Clear Progress. Completed New. New Flutter Navigator 2. Learn how to use the new features on SF Symbols 3, which allows you to customize colors, shading, accessibility and localization, as well as add custom symbols more easily.
Toby Flint Toby is a software developer inspired by games. Tech Editor. Tammy Coron Tammy Coron is an independent creative professional, author of Apple Game Frameworks and Technologies, and the maker behind the Sean Duffy Sean is a software engineer by day, and hobbyist game and tools developer by night.
Realistic 3D models, animations and sound effects Examine any game back and forth, move by move! Edit, resume etc. Customizable chess set and chessboard colors including metal effect!
Option to hide valid moves markers, last move trail markers and thinking A. Quick start tutorial included! No in-app purchases, not a demo, no locked options! Published by A Trillion Games Ltd. Approximate size Age rating For all ages. This app can Access your Internet connection Microsoft. Permissions info. Installation Get this app while signed in to your Microsoft account and install on up to ten Windows 10 devices. Language supported English United States. Publisher Info 3D Chess Game support.
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