Initial commit of shogi javascript library
This commit is contained in:
cdramey
commit
c36b91b8f4
1
.gitignore
vendored
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1
.gitignore
vendored
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*.compiled.js
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24
LICENSE
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24
LICENSE
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Copyright (c) 2012, Christopher Ramey
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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8
Makefile
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8
Makefile
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CLOSURE_PATH=~/closure/compiler.jar
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VERSION=1.0
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shogi-${VERSION}.compiled.js: shogi.js
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java -jar ${CLOSURE_PATH} --js $^ --js_output_file $@
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clean:
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rm shogi-*.compiled.js
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5
README.md
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5
README.md
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shogi.js
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========
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shogi.js is a javascript library for managing shogi games. It's intended
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as the display end of a web-based pickup shogi game system.
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357
shogi.js
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357
shogi.js
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/**
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@license Copyright (c) 2012, Christopher Ramey | http://github.com/cramey/shogi/LICENSE"
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*/
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var Shogi = {
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KING : 0,
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ROOK : 1,
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BISHOP : 2,
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GOLD_GENERAL : 3,
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SILVER_GENERAL : 4,
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KNIGHT : 5,
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LANCE : 6,
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PAWN : 7,
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PROMOTED_ROOK : 9,
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PROMOTED_BISHOP : 10,
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PROMOTED_SILVER : 12,
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PROMOTED_KNIGHT : 13,
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PROMOTED_LANCE : 14,
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PROMOTED_PAWN : 15,
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desc_king : [
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'reigning', 'challenging'
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],
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desc_peice : [
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'King', 'Rook', 'Bishop', 'Gold General',
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'Silver General', 'Knight', 'Lance', 'Pawn'
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],
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peicePromoted : function(n)
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{
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return (n & 8) != 0;
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},
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peiceCanPromote : function(b, l){
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var peice = b[l];
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if(peice == -1){ return false; }
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var pe = peice & 15;
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if(pe < 1 || pe > 7){ return false; }
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var player = this.peicePlayer(peice);
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if(player == 0 && l > 26){ return false; }
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if(player == 1 && l < 54){ return false; }
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return true;
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},
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peicePlayer : function(n)
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{
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return (n & 16) >> 4;
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},
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peiceName : function(n)
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{
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return this.desc_peice[n & 7];
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},
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peiceMoves : function(b, l)
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{
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var peice = b[l];
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var player = this.peicePlayer(peice);
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var moves = [];
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switch(peice & 15){
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case this.KING:
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var i = l + 9;
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if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 9;
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if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 1;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 1;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 8;
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if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 10;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 10;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 8;
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if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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break;
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case this.GOLD_GENERAL:
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case this.PROMOTED_SILVER:
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case this.PROMOTED_PAWN:
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case this.PROMOTED_LANCE:
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case this.PROMOTED_KNIGHT:
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var i = l + 9;
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if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 9;
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if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 1;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 1;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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if(player){
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i = l + 8;
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if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 10;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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} else {
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i = l - 10;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 8;
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if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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}
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break;
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case this.KNIGHT:
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var i = l + (player ? 19 : -19);
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + (player ? 17 : -17);
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if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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break;
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case this.LANCE:
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if(player){
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for(var i = l + 9; i <= 80; i += 9){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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} else {
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for(var i = l - 9; i >= 0; i -= 9){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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}
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break;
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case this.PROMOTED_ROOK:
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var i = l - 10;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 8;
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if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 8;
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if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 10;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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case this.ROOK:
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for(var i = l - 9; i >= 0; i -= 9){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l - 1; i % 9 != 8; i--){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l + 1; i % 9 != 0; i++){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l + 9; i <= 80; i += 9){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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break;
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case this.PROMOTED_BISHOP:
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var i = l + 9;
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if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 9;
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if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 1;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 1;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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case this.BISHOP:
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for(var i = l - 8; i >= 0 && i % 9 != 0; i -= 8){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l - 10; i >= 0 && i % 9 != 8; i -= 10){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l + 8; i <= 80 && i % 9 != 8; i += 8){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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for(var i = l + 10; i <= 80 && i % 9 != 0; i += 10){
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if(b[i] == -1){ moves.push(i); }
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else if(this.peicePlayer(b[i]) != player){
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moves.push(i); break;
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} else { break; }
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}
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break;
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case this.PAWN:
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var i = l + (player ? 9 : -9);
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if(i >= 0 && i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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break;
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case this.SILVER_GENERAL:
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i = l + (player ? 9 : -9);
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if(i >= 0 && i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]))){
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moves.push(i);
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}
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var i = l - 10;
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if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l - 8;
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if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 8;
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if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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i = l + 10;
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if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
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moves.push(i);
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}
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break;
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}
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return moves;
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},
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peiceDescription : function(n)
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{
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var pl = (n & 16) >> 4;
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var pe = n & 7;
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return (this.peicePromoted(n) ? 'Promoted ' : '') +
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this.peiceName(n) +
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(pe == this.KING ? ' (' + this.desc_king[pl] + ')' : '');
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},
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boardStandard: function()
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{
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return [
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22,21,20,19,16,19,20,21,22,
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-1,18,-1,-1,-1,-1,-1,17,-1,
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23,23,23,23,23,23,23,23,23,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,
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7, 7, 7, 7, 7, 7, 7, 7, 7,
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-1, 1,-1,-1,-1,-1,-1, 2,-1,
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6, 5, 4, 3, 0, 3, 4, 5, 6
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];
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}
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};
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