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Some things.

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This commit is contained in:
Jacob Signorovitch
2025-05-18 16:00:07 -04:00
parent b41762e1bd
commit dea7608b63
5 changed files with 81 additions and 17 deletions
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46
chess/src/chess/Board.java
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@@ -1,6 +1,8 @@
package chess;
import java.awt.Color;
import java.awt.Rectangle;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import javalib.impworld.WorldScene;
@@ -11,8 +13,12 @@ import javalib.worldimages.RectangleImage;
class Board {
Map<Coord, Piece> board;
Map<Coord, Info> info;
Board() { this.board = new HashMap<Coord, Piece>(); }
Board() {
this.board = new HashMap<Coord, Piece>();
this.info = new HashMap<Coord, Info>();
}
WorldScene draw() {
WorldScene scene = new WorldScene(Util.size, Util.size);
@@ -21,11 +27,19 @@ class Board {
Piece piece = this.board.get(new Coord(i, j));
scene.placeImageXY(
new OverlayImage(
(piece == null) ? new EmptyImage() : piece.draw(),
new RectangleImage(
Util.scale, Util.scale, OutlineMode.SOLID,
(i + j) % 2 == 0 ? Color.DARK_GRAY
: Color.LIGHT_GRAY
(this.info.get(new Coord(i, j)) != null)
? new RectangleImage(
Util.scale, Util.scale, OutlineMode.SOLID,
new Color(0, 200, 200, 150)
)
: new EmptyImage(),
new OverlayImage(
(piece == null) ? new EmptyImage() : piece.draw(),
new RectangleImage(
Util.scale, Util.scale, OutlineMode.SOLID,
(i + j) % 2 == 0 ? Color.DARK_GRAY
: Color.LIGHT_GRAY
)
)
),
i * Util.scale + Util.halfScale,
@@ -40,14 +54,34 @@ class Board {
Piece get(Coord coord) { return this.board.get(coord); }
void drop(Coord coord) { this.board.remove(coord); }
// Show the moves a piece can take.
void displayMoves(Coord coord) {
ArrayList<Coord> moves = this.get(coord).moves(coord);
for (Coord move : moves) this.info.put(move, Info.CANMOVE);
}
// Move a piece.
void move(Coord targ, Coord dest) {
Piece piece = this.get(targ);
this.drop(targ);
this.set(dest, piece);
}
// Get the valid moves for a piece.
ArrayList<Coord> getMoves(Coord coord) {
Piece piece = this.get(coord);
// If not the active actor, no moves possible and so return empty list.
// if (!piece.col.equals(this.activeActor.col))
// return new ArrayList<Coord>();
return piece.moves(coord);
}
}
// Information layered over the board.
enum Info { CANMOVE, WARN }
// Measured from top left.
class Coord {
int x, y;

2
chess/src/chess/Game.java
View File

@@ -19,10 +19,8 @@ class Game extends World {
Game() {
this.board = new Board();
this.white = new Player(Util.Col.WHITE, this.board);
this.black = new Player(Util.Col.BLACK, this.board);
this.activeActor = this.white;
this.setup();

13
chess/src/chess/Main.java
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@@ -1,9 +1,13 @@
package chess;
import chess.Util.Col;
import tester.Tester;
class Examples {
void testItAll(Tester t) { new Game().run(); }
void testItAll(Tester t) {
Game game = new Game();
game.run();
}
void testCoord(Tester t) {
Coord coord = new Coord(1, 1);
@@ -14,11 +18,4 @@ class Examples {
t.checkExpect(coord.hashCode() == cod.hashCode(), true);
t.checkExpect(coord.hashCode() == cor.hashCode(), false);
}
void testBoard(Tester t) {
Piece pawn = new Pawn(Util.Col.BLACK);
Board board = new Board();
board.set(new Coord(0, 0), pawn);
t.checkExpect(board.get(new Coord(0, 0)), pawn);
}
}

35
chess/src/chess/Piece.java
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@@ -1,5 +1,7 @@
package chess;
import chess.Util.Col;
import java.util.ArrayList;
import javalib.worldimages.*;
// The piece types.
@@ -16,6 +18,9 @@ abstract class Piece {
}
WorldImage draw() { return new EmptyImage(); };
// Return list of possible move locations, centered around the given coord.
ArrayList<Coord> moves(Coord coord) { return new ArrayList<Coord>(); }
}
class Pawn extends Piece {
@@ -26,6 +31,14 @@ class Pawn extends Piece {
"Pawn.png"
);
}
ArrayList<Coord> moves(Coord coord) {
ArrayList<Coord> moves = new ArrayList<Coord>();
moves.add(
new Coord(coord.x, coord.y + (this.col.equals(Col.BLACK) ? 1 : -1))
);
return moves;
}
}
class Rook extends Piece {
@@ -36,6 +49,13 @@ class Rook extends Piece {
"Rook.png"
);
}
ArrayList<Coord> moves(Coord coord) {
ArrayList<Coord> moves = new ArrayList<Coord>();
for (int i = -7; i < 8; i++) moves.add(new Coord(coord.x, coord.y + i));
for (int i = -7; i < 8; i++) moves.add(new Coord(coord.x + i, coord.y));
return moves;
}
}
class Knight extends Piece {
@@ -46,6 +66,21 @@ class Knight extends Piece {
"Knight.png"
);
}
ArrayList<Coord> moves(Coord coord) {
ArrayList<Coord> moves = new ArrayList<Coord>();
moves.add(new Coord(coord.x + 1, coord.y + 2));
moves.add(new Coord(coord.x + 2, coord.y + 1));
moves.add(new Coord(coord.x + 1, coord.y - 2));
moves.add(new Coord(coord.x + 2, coord.y - 1));
moves.add(new Coord(coord.x - 1, coord.y - 2));
moves.add(new Coord(coord.x - 2, coord.y - 1));
moves.add(new Coord(coord.x - 1, coord.y + 2));
moves.add(new Coord(coord.x - 2, coord.y + 1));
moves.add(new Coord(coord.x - 1, coord.y - 2));
moves.add(new Coord(coord.x - 2, coord.y - 1));
return moves;
}
}
class Bishop extends Piece {

2
chess/src/chess/Player.java
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@@ -4,5 +4,5 @@ package chess;
class Player extends Actor {
Player(Util.Col col, Board board) { super(col, board); }
void click(Coord coord) { this.board.move(coord, new Coord(4, 4)); }
void click(Coord coord) { this.board.displayMoves(coord); }
}