+import { ChessRules } from "@/base_rules";
+import { ArrayFun } from "@/utils/array";
+
+export class RugbyRules extends ChessRules {
+ static get HasFlags() {
+ return false;
+ }
+
+ static get PawnSpecs() {
+ return Object.assign(
+ {},
+ ChessRules.PawnSpecs,
+ { promotions: [V.PAWN] }
+ );
+ }
+
+ getPotentialMovesFrom(sq) {
+ // There are only pawns:
+ return this.getPotentialPawnMoves(sq);
+ }
+
+ getPotentialPawnMoves(sq) {
+ const moves = super.getPotentialPawnMoves(sq);
+ // Add king movements, without capturing
+ const steps =
+ this.turn == 'w'
+ ? [ [-1,-1], [-1,1], [0,1], [0,-1], [1,-1], [1,0], [1,1] ]
+ : [ [1,-1], [1,1], [0,1], [0,-1], [-1,-1], [-1,0], [-1,1] ];
+ let addMoves = this.getSlideNJumpMoves(sq, steps, "oneStep");
+ return moves.concat(addMoves.filter(m => m.vanish.length == 1));
+ }
+
+ static GenRandInitFen() {
+ // Non-randomized variant. En-passant possible:
+ return "pppppppp/8/8/8/8/8/8/PPPPPPPP w 0 -";
+ }
+
+ filterValid(moves) {
+ return moves;
+ }
+
+ prePlay() {}
+ postPlay() {}
+ preUndo() {}
+ postUndo() {}
+
+ getCurrentScore() {
+ // Turn has changed:
+ const color = V.GetOppCol(this.turn);
+ const lastRank = (color == "w" ? 0 : V.size.x - 1);
+ if (ArrayFun.range(8).some(i => this.getColor(lastRank, i) == color))
+ // The opposing edge is reached!
+ return color == "w" ? "1-0" : "0-1";
+ if (this.atLeastOneMove()) return "*";
+ // Stalemate (will probably never happen)
+ return "1/2";
+ }
+};
projects / vchess.git / commitdiff