Initial commit of shogi javascript library

This commit is contained in:
Christopher Ramey 2012-08-28 04:55:45 +00:00 committed by cdramey
commit c36b91b8f4
5 changed files with 395 additions and 0 deletions

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.gitignore vendored Normal file
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*.compiled.js

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LICENSE Normal file
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Copyright (c) 2012, Christopher Ramey
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

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Makefile Normal file
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CLOSURE_PATH=~/closure/compiler.jar
VERSION=1.0
shogi-${VERSION}.compiled.js: shogi.js
java -jar ${CLOSURE_PATH} --js $^ --js_output_file $@
clean:
rm shogi-*.compiled.js

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README.md Normal file
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shogi.js
========
shogi.js is a javascript library for managing shogi games. It's intended
as the display end of a web-based pickup shogi game system.

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shogi.js Normal file
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/**
@license Copyright (c) 2012, Christopher Ramey | http://github.com/cramey/shogi/LICENSE"
*/
var Shogi = {
KING : 0,
ROOK : 1,
BISHOP : 2,
GOLD_GENERAL : 3,
SILVER_GENERAL : 4,
KNIGHT : 5,
LANCE : 6,
PAWN : 7,
PROMOTED_ROOK : 9,
PROMOTED_BISHOP : 10,
PROMOTED_SILVER : 12,
PROMOTED_KNIGHT : 13,
PROMOTED_LANCE : 14,
PROMOTED_PAWN : 15,
desc_king : [
'reigning', 'challenging'
],
desc_peice : [
'King', 'Rook', 'Bishop', 'Gold General',
'Silver General', 'Knight', 'Lance', 'Pawn'
],
peicePromoted : function(n)
{
return (n & 8) != 0;
},
peiceCanPromote : function(b, l){
var peice = b[l];
if(peice == -1){ return false; }
var pe = peice & 15;
if(pe < 1 || pe > 7){ return false; }
var player = this.peicePlayer(peice);
if(player == 0 && l > 26){ return false; }
if(player == 1 && l < 54){ return false; }
return true;
},
peicePlayer : function(n)
{
return (n & 16) >> 4;
},
peiceName : function(n)
{
return this.desc_peice[n & 7];
},
peiceMoves : function(b, l)
{
var peice = b[l];
var player = this.peicePlayer(peice);
var moves = [];
switch(peice & 15){
case this.KING:
var i = l + 9;
if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 9;
if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 1;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 1;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 8;
if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 10;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 10;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 8;
if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
break;
case this.GOLD_GENERAL:
case this.PROMOTED_SILVER:
case this.PROMOTED_PAWN:
case this.PROMOTED_LANCE:
case this.PROMOTED_KNIGHT:
var i = l + 9;
if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 9;
if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 1;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 1;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
if(player){
i = l + 8;
if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 10;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
} else {
i = l - 10;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 8;
if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
}
break;
case this.KNIGHT:
var i = l + (player ? 19 : -19);
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + (player ? 17 : -17);
if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
break;
case this.LANCE:
if(player){
for(var i = l + 9; i <= 80; i += 9){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
} else {
for(var i = l - 9; i >= 0; i -= 9){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
}
break;
case this.PROMOTED_ROOK:
var i = l - 10;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 8;
if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 8;
if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 10;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
case this.ROOK:
for(var i = l - 9; i >= 0; i -= 9){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l - 1; i % 9 != 8; i--){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l + 1; i % 9 != 0; i++){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l + 9; i <= 80; i += 9){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
break;
case this.PROMOTED_BISHOP:
var i = l + 9;
if(i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 9;
if(i >= 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 1;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 1;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
case this.BISHOP:
for(var i = l - 8; i >= 0 && i % 9 != 0; i -= 8){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l - 10; i >= 0 && i % 9 != 8; i -= 10){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l + 8; i <= 80 && i % 9 != 8; i += 8){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
for(var i = l + 10; i <= 80 && i % 9 != 0; i += 10){
if(b[i] == -1){ moves.push(i); }
else if(this.peicePlayer(b[i]) != player){
moves.push(i); break;
} else { break; }
}
break;
case this.PAWN:
var i = l + (player ? 9 : -9);
if(i >= 0 && i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
break;
case this.SILVER_GENERAL:
i = l + (player ? 9 : -9);
if(i >= 0 && i <= 80 && (b[i] == -1 || this.peicePlayer(b[i]))){
moves.push(i);
}
var i = l - 10;
if(i >= 0 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l - 8;
if(i >= 0 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 8;
if(i <= 80 && i % 9 != 8 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
i = l + 10;
if(i <= 80 && i % 9 != 0 && (b[i] == -1 || this.peicePlayer(b[i]) != player)){
moves.push(i);
}
break;
}
return moves;
},
peiceDescription : function(n)
{
var pl = (n & 16) >> 4;
var pe = n & 7;
return (this.peicePromoted(n) ? 'Promoted ' : '') +
this.peiceName(n) +
(pe == this.KING ? ' (' + this.desc_king[pl] + ')' : '');
},
boardStandard: function()
{
return [
22,21,20,19,16,19,20,21,22,
-1,18,-1,-1,-1,-1,-1,17,-1,
23,23,23,23,23,23,23,23,23,
-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,
7, 7, 7, 7, 7, 7, 7, 7, 7,
-1, 1,-1,-1,-1,-1,-1, 2,-1,
6, 5, 4, 3, 0, 3, 4, 5, 6
];
}
};