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index.js
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index.js
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let main = {
variables: {
turn: 'w',
selectedpiece: '',
highlighted: [],
pieces: {
w_king: {
position: '5_1',
img: '♔',
captured: false,
moved: false,
type: 'w_king'
},
w_queen: {
position: '4_1',
img: '♕',
captured: false,
moved: false,
type: 'w_queen'
},
w_bishop1: {
position: '3_1',
img: '♗',
captured: false,
moved: false,
type: 'w_bishop'
},
w_bishop2: {
position: '6_1',
img: '♗',
captured: false,
moved: false,
type: 'w_bishop'
},
w_knight1: {
position: '2_1',
img: '♘',
captured: false,
moved: false,
type: 'w_knight'
},
w_knight2: {
position: '7_1',
img: '♘',
captured: false,
moved: false,
type: 'w_knight'
},
w_rook1: {
position: '1_1',
img: '♖',
captured: false,
moved: false,
type: 'w_rook'
},
w_rook2: {
position: '8_1',
img: '♖',
captured: false,
moved: false,
type: 'w_rook'
},
w_pawn1: {
position: '1_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn2: {
position: '2_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn3: {
position: '3_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn4: {
position: '4_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn5: {
position: '5_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn6: {
position: '6_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn7: {
position: '7_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
w_pawn8: {
position: '8_2',
img: '♙',
captured: false,
type: 'w_pawn',
moved: false
},
b_king: {
position: '5_8',
img: '♚',
captured: false,
moved: false,
type: 'b_king'
},
b_queen: {
position: '4_8',
img: '♛',
captured: false,
moved: false,
type: 'b_queen'
},
b_bishop1: {
position: '3_8',
img: '♝',
captured: false,
moved: false,
type: 'b_bishop'
},
b_bishop2: {
position: '6_8',
img: '♝',
captured: false,
moved: false,
type: 'b_bishop'
},
b_knight1: {
position: '2_8',
img: '♞',
captured: false,
moved: false,
type: 'b_knight'
},
b_knight2: {
position: '7_8',
img: '♞',
captured: false,
moved: false,
type: 'b_knight'
},
b_rook1: {
position: '1_8',
img: '♜',
captured: false,
moved: false,
type: 'b_rook'
},
b_rook2: {
position: '8_8',
img: '♜',
captured: false,
moved: false,
type: 'b_rook'
},
b_pawn1: {
position: '1_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn2: {
position: '2_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn3: {
position: '3_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn4: {
position: '4_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn5: {
position: '5_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn6: {
position: '6_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn7: {
position: '7_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
},
b_pawn8: {
position: '8_7',
img: '♟',
captured: false,
type: 'b_pawn',
moved: false
}
}
},
methods: {
gamesetup: function() {
$('.chessboard-cel').attr('chess', 'null');
for (let gamepiece in main.variables.pieces) {
$('#' + main.variables.pieces[gamepiece].position).html(main.variables.pieces[gamepiece].img);
$('#' + main.variables.pieces[gamepiece].position).attr('chess', gamepiece);
}
},
moveoptions: function(selectedpiece) {
let position = { x: '', y: '' };
position.x = main.variables.pieces[selectedpiece].position.split('_')[0];
position.y = main.variables.pieces[selectedpiece].position.split('_')[1];
// these options need to be var instead of let
var options = [];
var coordinates = [];
var startpoint = main.variables.pieces[selectedpiece].position;
var c1, c2, c3, c4, c5, c6, c7, c8;
if (main.variables.highlighted.length != 0) {
main.methods.togglehighlight(main.variables.highlighted);
}
switch (main.variables.pieces[selectedpiece].type) {
case 'w_king':
if ($('#6_1').attr('chess') == 'null' && $('#7_1').attr('chess') == 'null' && main.variables.pieces['w_king'].moved == false && main.variables.pieces['w_rook2'].moved == false) {
coordinates = [{ x: 1, y: 1 }, { x: 1, y: 0 }, { x: 1, y: -1 }, { x: 0, y: -1 }, { x: -1, y: -1 }, { x: -1, y: 0 }, { x: -1, y: 1 }, { x: 0, y: 1 }, { x: 2, y: 0 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
} else {
coordinates = [{ x: 1, y: 1 }, { x: 1, y: 0 }, { x: 1, y: -1 }, { x: 0, y: -1 }, { x: -1, y: -1 }, { x: -1, y: 0 }, { x: -1, y: 1 }, { x: 0, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
}
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_king':
if ($('#6_8').attr('chess') == 'null' && $('#7_8').attr('chess') == 'null' && main.variables.pieces['b_king'].moved == false && main.variables.pieces['b_rook2'].moved == false) {
coordinates = [{ x: 1, y: 1 }, { x: 1, y: 0 }, { x: 1, y: -1 }, { x: 0, y: -1 }, { x: -1, y: -1 }, { x: -1, y: 0 }, { x: -1, y: 1 }, { x: 0, y: 1 }, { x: 2, y: 0 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
} else {
coordinates = [{ x: 1, y: 1 }, { x: 1, y: 0 }, { x: 1, y: -1 }, { x: 0, y: -1 }, { x: -1, y: -1 }, { x: -1, y: 0 }, { x: -1, y: 1 }, { x: 0, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
}
/*
coordinates = [{ x: 1, y: 1 },{ x: 1, y: 0 },{ x: 1, y: -1 },{ x: 0, y: -1 },{ x: -1, y: -1 },{ x: -1, y: 0 },{ x: -1, y: 1 },{ x: 0, y: 1 }].map(function(val){
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
*/
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'w_queen':
c1 = main.methods.w_options(position, [{ x: 1, y: 1 }, { x: 2, y: 2 }, { x: 3, y: 3 }, { x: 4, y: 4 }, { x: 5, y: 5 }, { x: 6, y: 6 }, { x: 7, y: 7 }]);
c2 = main.methods.w_options(position, [{ x: 1, y: -1 }, { x: 2, y: -2 }, { x: 3, y: -3 }, { x: 4, y: -4 }, { x: 5, y: -5 }, { x: 6, y: -6 }, { x: 7, y: -7 }]);
c3 = main.methods.w_options(position, [{ x: -1, y: 1 }, { x: -2, y: 2 }, { x: -3, y: 3 }, { x: -4, y: 4 }, { x: -5, y: 5 }, { x: -6, y: 6 }, { x: -7, y: 7 }]);
c4 = main.methods.w_options(position, [{ x: -1, y: -1 }, { x: -2, y: -2 }, { x: -3, y: -3 }, { x: -4, y: -4 }, { x: -5, y: -5 }, { x: -6, y: -6 }, { x: -7, y: -7 }]);
c5 = main.methods.w_options(position, [{ x: 1, y: 0 }, { x: 2, y: 0 }, { x: 3, y: 0 }, { x: 4, y: 0 }, { x: 5, y: 0 }, { x: 6, y: 0 }, { x: 7, y: 0 }]);
c6 = main.methods.w_options(position, [{ x: 0, y: 1 }, { x: 0, y: 2 }, { x: 0, y: 3 }, { x: 0, y: 4 }, { x: 0, y: 5 }, { x: 0, y: 6 }, { x: 0, y: 7 }]);
c7 = main.methods.w_options(position, [{ x: -1, y: 0 }, { x: -2, y: 0 }, { x: -3, y: 0 }, { x: -4, y: 0 }, { x: -5, y: 0 }, { x: -6, y: 0 }, { x: -7, y: 0 }]);
c8 = main.methods.w_options(position, [{ x: 0, y: -1 }, { x: 0, y: -2 }, { x: 0, y: -3 }, { x: 0, y: -4 }, { x: 0, y: -5 }, { x: 0, y: -6 }, { x: 0, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4).concat(c5).concat(c6).concat(c7).concat(c8);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_queen':
c1 = main.methods.b_options(position, [{ x: 1, y: 1 }, { x: 2, y: 2 }, { x: 3, y: 3 }, { x: 4, y: 4 }, { x: 5, y: 5 }, { x: 6, y: 6 }, { x: 7, y: 7 }]);
c2 = main.methods.b_options(position, [{ x: 1, y: -1 }, { x: 2, y: -2 }, { x: 3, y: -3 }, { x: 4, y: -4 }, { x: 5, y: -5 }, { x: 6, y: -6 }, { x: 7, y: -7 }]);
c3 = main.methods.b_options(position, [{ x: -1, y: 1 }, { x: -2, y: 2 }, { x: -3, y: 3 }, { x: -4, y: 4 }, { x: -5, y: 5 }, { x: -6, y: 6 }, { x: -7, y: 7 }]);
c4 = main.methods.b_options(position, [{ x: -1, y: -1 }, { x: -2, y: -2 }, { x: -3, y: -3 }, { x: -4, y: -4 }, { x: -5, y: -5 }, { x: -6, y: -6 }, { x: -7, y: -7 }]);
c5 = main.methods.b_options(position, [{ x: 1, y: 0 }, { x: 2, y: 0 }, { x: 3, y: 0 }, { x: 4, y: 0 }, { x: 5, y: 0 }, { x: 6, y: 0 }, { x: 7, y: 0 }]);
c6 = main.methods.b_options(position, [{ x: 0, y: 1 }, { x: 0, y: 2 }, { x: 0, y: 3 }, { x: 0, y: 4 }, { x: 0, y: 5 }, { x: 0, y: 6 }, { x: 0, y: 7 }]);
c7 = main.methods.b_options(position, [{ x: -1, y: 0 }, { x: -2, y: 0 }, { x: -3, y: 0 }, { x: -4, y: 0 }, { x: -5, y: 0 }, { x: -6, y: 0 }, { x: -7, y: 0 }]);
c8 = main.methods.b_options(position, [{ x: 0, y: -1 }, { x: 0, y: -2 }, { x: 0, y: -3 }, { x: 0, y: -4 }, { x: 0, y: -5 }, { x: 0, y: -6 }, { x: 0, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4).concat(c5).concat(c6).concat(c7).concat(c8);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'w_bishop':
c1 = main.methods.w_options(position, [{ x: 1, y: 1 }, { x: 2, y: 2 }, { x: 3, y: 3 }, { x: 4, y: 4 }, { x: 5, y: 5 }, { x: 6, y: 6 }, { x: 7, y: 7 }]);
c2 = main.methods.w_options(position, [{ x: 1, y: -1 }, { x: 2, y: -2 }, { x: 3, y: -3 }, { x: 4, y: -4 }, { x: 5, y: -5 }, { x: 6, y: -6 }, { x: 7, y: -7 }]);
c3 = main.methods.w_options(position, [{ x: -1, y: 1 }, { x: -2, y: 2 }, { x: -3, y: 3 }, { x: -4, y: 4 }, { x: -5, y: 5 }, { x: -6, y: 6 }, { x: -7, y: 7 }]);
c4 = main.methods.w_options(position, [{ x: -1, y: -1 }, { x: -2, y: -2 }, { x: -3, y: -3 }, { x: -4, y: -4 }, { x: -5, y: -5 }, { x: -6, y: -6 }, { x: -7, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_bishop':
c1 = main.methods.b_options(position, [{ x: 1, y: 1 }, { x: 2, y: 2 }, { x: 3, y: 3 }, { x: 4, y: 4 }, { x: 5, y: 5 }, { x: 6, y: 6 }, { x: 7, y: 7 }]);
c2 = main.methods.b_options(position, [{ x: 1, y: -1 }, { x: 2, y: -2 }, { x: 3, y: -3 }, { x: 4, y: -4 }, { x: 5, y: -5 }, { x: 6, y: -6 }, { x: 7, y: -7 }]);
c3 = main.methods.b_options(position, [{ x: -1, y: 1 }, { x: -2, y: 2 }, { x: -3, y: 3 }, { x: -4, y: 4 }, { x: -5, y: 5 }, { x: -6, y: 6 }, { x: -7, y: 7 }]);
c4 = main.methods.b_options(position, [{ x: -1, y: -1 }, { x: -2, y: -2 }, { x: -3, y: -3 }, { x: -4, y: -4 }, { x: -5, y: -5 }, { x: -6, y: -6 }, { x: -7, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'w_knight':
coordinates = [{ x: -1, y: 2 }, { x: 1, y: 2 }, { x: 1, y: -2 }, { x: -1, y: -2 }, { x: 2, y: 1 }, { x: 2, y: -1 }, { x: -2, y: -1 }, { x: -2, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_knight':
coordinates = [{ x: -1, y: 2 }, { x: 1, y: 2 }, { x: 1, y: -2 }, { x: -1, y: -2 }, { x: 2, y: 1 }, { x: 2, y: -1 }, { x: -2, y: -1 }, { x: -2, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'w_rook':
c1 = main.methods.w_options(position, [{ x: 1, y: 0 }, { x: 2, y: 0 }, { x: 3, y: 0 }, { x: 4, y: 0 }, { x: 5, y: 0 }, { x: 6, y: 0 }, { x: 7, y: 0 }]);
c2 = main.methods.w_options(position, [{ x: 0, y: 1 }, { x: 0, y: 2 }, { x: 0, y: 3 }, { x: 0, y: 4 }, { x: 0, y: 5 }, { x: 0, y: 6 }, { x: 0, y: 7 }]);
c3 = main.methods.w_options(position, [{ x: -1, y: 0 }, { x: -2, y: 0 }, { x: -3, y: 0 }, { x: -4, y: 0 }, { x: -5, y: 0 }, { x: -6, y: 0 }, { x: -7, y: 0 }]);
c4 = main.methods.w_options(position, [{ x: 0, y: -1 }, { x: 0, y: -2 }, { x: 0, y: -3 }, { x: 0, y: -4 }, { x: 0, y: -5 }, { x: 0, y: -6 }, { x: 0, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_rook':
c1 = main.methods.b_options(position, [{ x: 1, y: 0 }, { x: 2, y: 0 }, { x: 3, y: 0 }, { x: 4, y: 0 }, { x: 5, y: 0 }, { x: 6, y: 0 }, { x: 7, y: 0 }]);
c2 = main.methods.b_options(position, [{ x: 0, y: 1 }, { x: 0, y: 2 }, { x: 0, y: 3 }, { x: 0, y: 4 }, { x: 0, y: 5 }, { x: 0, y: 6 }, { x: 0, y: 7 }]);
c3 = main.methods.b_options(position, [{ x: -1, y: 0 }, { x: -2, y: 0 }, { x: -3, y: 0 }, { x: -4, y: 0 }, { x: -5, y: 0 }, { x: -6, y: 0 }, { x: -7, y: 0 }]);
c4 = main.methods.b_options(position, [{ x: 0, y: -1 }, { x: 0, y: -2 }, { x: 0, y: -3 }, { x: 0, y: -4 }, { x: 0, y: -5 }, { x: 0, y: -6 }, { x: 0, y: -7 }]);
coordinates = c1.concat(c2).concat(c3).concat(c4);
options = coordinates.slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'w_pawn':
if (main.variables.pieces[selectedpiece].moved == false) {
coordinates = [{ x: 0, y: 1 }, { x: 0, y: 2 }, { x: 1, y: 1 }, { x: -1, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
} else if (main.variables.pieces[selectedpiece].moved == true) {
coordinates = [{ x: 0, y: 1 }, { x: 1, y: 1 }, { x: -1, y: 1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
}
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
case 'b_pawn':
// calculate pawn options
if (main.variables.pieces[selectedpiece].moved == false) {
coordinates = [{ x: 0, y: -1 }, { x: 0, y: -2 }, { x: 1, y: -1 }, { x: -1, y: -1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
} else if (main.variables.pieces[selectedpiece].moved == true) {
coordinates = [{ x: 0, y: -1 }, { x: 1, y: -1 }, { x: -1, y: -1 }].map(function(val) {
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
});
}
options = (main.methods.options(startpoint, coordinates, main.variables.pieces[selectedpiece].type)).slice(0);
main.variables.highlighted = options.slice(0);
main.methods.togglehighlight(options);
break;
}
},
options: function(startpoint, coordinates, piecetype) { // first check if any of the possible coordinates is out of bounds;
coordinates = coordinates.filter(val => {
let pos = { x: 0, y: 0 };
pos.x = parseInt(val.split('_')[0]);
pos.y = parseInt(val.split('_')[1]);
if (!(pos.x < 1) && !(pos.x > 8) && !(pos.y < 1) && !(pos.y > 8)) { // if it is not out of bounds, return the coordinate;
return val;
}
});
switch (piecetype) {
case 'w_king':
coordinates = coordinates.filter(val => {
return ($('#' + val).attr('chess') == 'null' || ($('#' + val).attr('chess')).slice(0, 1) == 'b');
});
break;
case 'b_king':
coordinates = coordinates.filter(val => {
return ($('#' + val).attr('chess') == 'null' || ($('#' + val).attr('chess')).slice(0, 1) == 'w');
});
break;
case 'w_knight':
coordinates = coordinates.filter(val => {
return ($('#' + val).attr('chess') == 'null' || ($('#' + val).attr('chess')).slice(0, 1) == 'b');
});
break;
case 'b_knight':
coordinates = coordinates.filter(val => {
return ($('#' + val).attr('chess') == 'null' || ($('#' + val).attr('chess')).slice(0, 1) == 'w');
});
break;
case 'w_pawn':
coordinates = coordinates.filter(val => {
let sp = { x: 0, y: 0 };
let coordinate = val.split('_');
sp.x = startpoint.split('_')[0];
sp.y = startpoint.split('_')[1];
if (coordinate[0] < sp.x || coordinate[0] > sp.x) { // if the coordinate is on either side of the center, check if it has an opponent piece on it;
return ($('#' + val).attr('chess') != 'null' && ($('#' + val).attr('chess')).slice(0, 1) == 'b'); // return coordinates with opponent pieces on them
} else { // else if the coordinate is in the center;
if (coordinate[1] == (parseInt(sp.y) + 2) && $('#' + sp.x + '_' + (parseInt(sp.y) + 1)).attr('chess') != 'null') {
// do nothing if this is the pawns first move, and there is a piece in front of the 2nd coordinate;
} else {
return ($('#' + val).attr('chess') == 'null'); // otherwise return the coordinate if there is no chess piece on it;
}
}
});
break;
case 'b_pawn':
coordinates = coordinates.filter(val => {
let sp = { x: 0, y: 0 };
let coordinate = val.split('_');
sp.x = startpoint.split('_')[0];
sp.y = startpoint.split('_')[1];
if (coordinate[0] < sp.x || coordinate[0] > sp.x) { // if the coordinate is on either side of the center, check if it has an opponent piece on it;
return ($('#' + val).attr('chess') != 'null' && ($('#' + val).attr('chess')).slice(0, 1) == 'w'); // return coordinates with opponent pieces on them
} else { // else if the coordinate is in the center;
if (coordinate[1] == (parseInt(sp.y) - 2) && $('#' + sp.x + '_' + (parseInt(sp.y) - 1)).attr('chess') != 'null') {
// do nothing if this is the pawns first move, and there is a piece in front of the 2nd coordinate;
} else {
return ($('#' + val).attr('chess') == 'null'); // otherwise return the coordinate if there is no chess piece on it;
}
}
});
break;
}
return coordinates;
},
w_options: function(position, coordinates) {
let flag = false;
coordinates = coordinates.map(function(val) { // convert the x,y into actual grid id coordinates;
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
}).filter(val => {
let pos = { x: 0, y: 0 };
pos.x = parseInt(val.split('_')[0]);
pos.y = parseInt(val.split('_')[1]);
if (!(pos.x < 1) && !(pos.x > 8) && !(pos.y < 1) && !(pos.y > 8)) { // if it is not out of bounds, return the coordinate;
return val;
}
}).filter(val => { // algorithm to determine line-of-sight movement options for bishop/rook/queen;
if (flag == false) {
if ($('#' + val).attr('chess') == 'null') {
console.log(val)
return val;
} else if (($('#' + val).attr('chess')).slice(0, 1) == 'b') {
flag = true;
console.log(val)
return val;
} else if (($('#' + val).attr('chess')).slice(0, 1) == 'w') {
console.log(val + '-3')
flag = true;
}
}
});
return coordinates;
},
b_options: function(position, coordinates) {
let flag = false;
coordinates = coordinates.map(function(val) { // convert the x,y into actual grid id coordinates;
return (parseInt(position.x) + parseInt(val.x)) + '_' + (parseInt(position.y) + parseInt(val.y));
}).filter(val => {
let pos = { x: 0, y: 0 };
pos.x = parseInt(val.split('_')[0]);
pos.y = parseInt(val.split('_')[1]);
if (!(pos.x < 1) && !(pos.x > 8) && !(pos.y < 1) && !(pos.y > 8)) { // if it is not out of bounds, return the coordinate;
return val;
}
}).filter(val => { // algorithm to determine line-of-sight movement options for bishop/rook/queen;
if (flag == false) {
if ($('#' + val).attr('chess') == 'null') {
return val;
} else if (($('#' + val).attr('chess')).slice(0, 1) == 'w') {
flag = true;
return val;
} else if (($('#' + val).attr('chess')).slice(0, 1) == 'b') {
flag = true;
}
}
});
return coordinates;
},
capture: function(target) {
let selectedpiece = {
name: $('#' + main.variables.selectedpiece).attr('chess'),
id: main.variables.selectedpiece
};
//new cell
$('#' + target.id).html(main.variables.pieces[selectedpiece.name].img);
$('#' + target.id).attr('chess', selectedpiece.name);
//old cell
$('#' + selectedpiece.id).html('');
$('#' + selectedpiece.id).attr('chess', 'null');
//moved piece
main.variables.pieces[selectedpiece.name].position = target.id;
main.variables.pieces[selectedpiece.name].moved = true;
// captured piece
main.variables.pieces[target.name].captured = true;
/*
// toggle highlighted coordinates
main.methods.togglehighlight(main.variables.highlighted);
main.variables.highlighted.length = 0;
// set the selected piece to '' again
main.variables.selectedpiece = '';
*/
},
move: function(target) {
let selectedpiece = $('#' + main.variables.selectedpiece).attr('chess');
// new cell
$('#' + target.id).html(main.variables.pieces[selectedpiece].img);
$('#' + target.id).attr('chess', selectedpiece);
// old cell
$('#' + main.variables.selectedpiece).html('');
$('#' + main.variables.selectedpiece).attr('chess', 'null');
main.variables.pieces[selectedpiece].position = target.id;
main.variables.pieces[selectedpiece].moved = true;
},
endturn: function() {
if (main.variables.turn == 'w') {
main.variables.turn = 'b';
// toggle highlighted coordinates
main.methods.togglehighlight(main.variables.highlighted);
main.variables.highlighted.length = 0;
// set the selected piece to '' again
main.variables.selectedpiece = '';
$('#turn').html("It's Blacks Turn");
$('#turn').addClass('turnhighlight');
window.setTimeout(function() {
$('#turn').removeClass('turnhighlight');
}, 1500);
} else if (main.variables.turn = 'b') {
main.variables.turn = 'w';
// toggle highlighted coordinates
main.methods.togglehighlight(main.variables.highlighted);
main.variables.highlighted.length = 0;
// set the selected piece to '' again
main.variables.selectedpiece = '';
$('#turn').html("It's Whites Turn");
$('#turn').addClass('turnhighlight');
window.setTimeout(function() {
$('#turn').removeClass('turnhighlight');
}, 1500);
}
},
togglehighlight: function(options) {
options.forEach(function(element, index, array) {
$('#' + element).toggleClass("green shake-little neongreen_txt");
});
},
}
};
$(document).ready(function() {
main.methods.gamesetup();
$('.chessboard-cel').click(function(e) {
var selectedpiece = {
name: '',
id: main.variables.selectedpiece
};
if (main.variables.selectedpiece == '') {
selectedpiece.name = $('#' + e.target.id).attr('chess');
} else {
selectedpiece.name = $('#' + main.variables.selectedpiece).attr('chess');
}
var target = {
name: $(this).attr('chess'),
id: e.target.id
};
if (main.variables.selectedpiece == '' && target.name.slice(0, 1) == main.variables.turn) { // show options
// moveoptions
main.variables.selectedpiece = e.target.id;
main.methods.moveoptions($(this).attr('chess'));
} else if (main.variables.selectedpiece != '' && target.name == 'null') { // move selected piece piece
if (selectedpiece.name == 'w_king' || selectedpiece.name == 'b_king') {
let t0 = (selectedpiece.name = 'w_king');
let t1 = (selectedpiece.name = 'b_king');
let t2 = (main.variables.pieces[selectedpiece.name].moved == false);
let t3 = (main.variables.pieces['b_rook2'].moved == false);
let t4 = (main.variables.pieces['w_rook2'].moved == false);
let t5 = (target.id == '7_8');
let t6 = (target.id == '7_1');
if (t0 && t2 && t4 && t6) { // castle w_king
let k_position = '5_1';
let k_target = '7_1';
let r_position = '8_1';
let r_target = '6_1';
main.variables.pieces['w_king'].position = '7_1';
main.variables.pieces['w_king'].moved = true;
$('#' + k_position).html('');
$('#' + k_position).attr('chess', 'null');
$('#' + k_target).html(main.variables.pieces['w_king'].img);
$('#' + k_target).attr('chess', 'w_king');
main.variables.pieces['w_rook2'].position = '6_1';
main.variables.pieces['w_rook2'].moved = true;
$('#' + r_position).html('');
$('#' + r_position).attr('chess', 'null');
$('#' + r_target).html(main.variables.pieces['w_rook2'].img);
$('#' + r_target).attr('chess', 'w_rook2');
main.methods.endturn();
} else if (t1 && t2 && t3 && t5) { // castle b_king
let k_position = '5_8';
let k_target = '7_8';
let r_position = '8_8';
let r_target = '6_8';
// w_king
main.variables.pieces['b_king'].position = '7_8';
main.variables.pieces['b_king'].moved = true;
$('#' + k_position).html('');
$('#' + k_position).attr('chess', 'null');
$('#' + k_target).html(main.variables.pieces['b_king'].img);
$('#' + k_target).attr('chess', 'b_king');
main.variables.pieces['b_rook2'].position = '6_8';
main.variables.pieces['b_rook2'].moved = true;
$('#' + r_position).html('');
$('#' + r_position).attr('chess', 'null');
$('#' + r_target).html(main.variables.pieces['b_rook2'].img);
$('#' + r_target).attr('chess', 'b_rook2');
main.methods.endturn();
} else { // move selectedpiece
main.methods.move(target);
main.methods.endturn();
}
} else { // else if selecedpiece.name is not white/black king than move
main.methods.move(target);
main.methods.endturn();
}
} else if (main.variables.selectedpiece != '' && target.name != 'null' && target.id != selectedpiece.id && selectedpiece.name.slice(0, 1) != target.name.slice(0, 1)) { // capture a piece
if (selectedpiece.id != target.id && main.variables.highlighted.indexOf(target.id) != (-1)) { // if it's not trying to capture pieces not in its movement range
// capture
main.methods.capture(target)
main.methods.endturn();
}
} else if (main.variables.selectedpiece != '' && target.name != 'null' && target.id != selectedpiece.id && selectedpiece.name.slice(0, 1) == target.name.slice(0, 1)) { // toggle move options
// toggle
main.methods.togglehighlight(main.variables.highlighted);
main.variables.highlighted.length = 0;
main.variables.selectedpiece = target.id;
main.methods.moveoptions(target.name);
}
});
$('body').contextmenu(function(e) {
e.preventDefault();
});
});