chessground-haichess
Version:
lichess.org Chess UI
1 lines • 33.8 kB
JavaScript
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).Chessground=e()}}(function(){return function e(t,o,n){function r(i,a){if(!o[i]){if(!t[i]){var c="function"==typeof require&&require;if(!a&&c)return c(i,!0);if(s)return s(i,!0);var l=new Error("Cannot find module '"+i+"'");throw l.code="MODULE_NOT_FOUND",l}var d=o[i]={exports:{}};t[i][0].call(d.exports,function(e){return r(t[i][1][e]||e)},d,d.exports,e,t,o,n)}return o[i].exports}for(var s="function"==typeof require&&require,i=0;i<n.length;i++)r(n[i]);return r}({1:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.render=o.anim=void 0;const n=e("./util");function r(e,t){const o=e(t);return t.dom.redraw(),o}function s(e,t){return{key:e,pos:n.key2pos(e),piece:t}}function i(e,t){return t.sort((t,o)=>n.distanceSq(e.pos,t.pos)-n.distanceSq(e.pos,o.pos))[0]}function a(e,t){const o=e.animation.current;if(void 0===o)return void(e.dom.destroyed||e.dom.redrawNow());const n=1-(t-o.start)*o.frequency;if(n<=0)e.animation.current=void 0,e.dom.redrawNow();else{const t=(r=n)<.5?4*r*r*r:(r-1)*(2*r-2)*(2*r-2)+1;for(const e of o.plan.anims.values())e[2]=e[0]*t,e[3]=e[1]*t;e.dom.redrawNow(!0),requestAnimationFrame((t=performance.now())=>a(e,t))}var r}o.anim=function(e,t){return t.animation.enabled?function(e,t){const o=new Map(t.pieces),r=e(t),c=function(e,t){const o=new Map,r=[],a=new Map,c=[],l=[],d=new Map;let u,p,f;for(const[n,i]of e)d.set(n,s(n,i));for(const i of n.allKeys)u=t.pieces.get(i),p=d.get(i),u?p?n.samePiece(u,p.piece)||(c.push(p),l.push(s(i,u))):l.push(s(i,u)):p&&c.push(p);for(const s of l)p=i(s,c.filter(e=>n.samePiece(s.piece,e.piece))),p&&(f=[p.pos[0]-s.pos[0],p.pos[1]-s.pos[1]],o.set(s.key,f.concat(f)),r.push(p.key));for(const n of c)-1===r.indexOf(n.key)&&a.set(n.key,n.piece);return{anims:o,fadings:a}}(o,t);if(c.anims.size||c.fadings.size){const e=t.animation.current&&t.animation.current.start;t.animation.current={start:performance.now(),frequency:1/t.animation.duration,plan:c},e||a(t,performance.now())}else t.dom.redraw();return r}(e,t):r(e,t)},o.render=r},{"./util":18}],2:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.start=void 0;const n=e("./board"),r=e("./fen"),s=e("./config"),i=e("./anim"),a=e("./drag"),c=e("./explosion");o.start=function(e,t){function o(){n.toggleOrientation(e),t()}return{set(t){t.orientation&&t.orientation!==e.orientation&&o(),(t.fen?i.anim:i.render)(e=>s.configure(e,t),e)},state:e,getFen:()=>r.write(e.pieces),toggleOrientation:o,setPieces(t){i.anim(e=>n.setPieces(e,t),e)},selectSquare(t,o){t?i.anim(e=>n.selectSquare(e,t,o),e):e.selected&&(n.unselect(e),e.dom.redraw())},move(t,o){i.anim(e=>n.baseMove(e,t,o),e)},newPiece(t,o){i.anim(e=>n.baseNewPiece(e,t,o),e)},playPremove(){if(e.premovable.current){if(i.anim(n.playPremove,e))return!0;e.dom.redraw()}return!1},playPredrop(t){if(e.predroppable.current){const o=n.playPredrop(e,t);return e.dom.redraw(),o}return!1},cancelPremove(){i.render(n.unsetPremove,e)},cancelPredrop(){i.render(n.unsetPredrop,e)},cancelMove(){i.render(e=>{n.cancelMove(e),a.cancel(e)},e)},stop(){i.render(e=>{n.stop(e),a.cancel(e)},e)},explode(t){c.explosion(e,t)},setAutoShapes(t){i.render(e=>e.drawable.autoShapes=t,e)},setShapes(t){i.render(e=>e.drawable.shapes=t,e)},getKeyAtDomPos:t=>n.getKeyAtDomPos(t,n.whitePov(e),e.dom.bounds()),redrawAll:t,dragNewPiece(t,o,n){a.dragNewPiece(e,t,o,n)},destroy(){n.stop(e),e.dom.unbind&&e.dom.unbind(),e.dom.destroyed=!0}}}},{"./anim":1,"./board":3,"./config":5,"./drag":6,"./explosion":10,"./fen":11}],3:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.whitePov=o.getSnappedKeyAtDomPos=o.getKeyAtDomPos=o.stop=o.cancelMove=o.playPredrop=o.playPremove=o.isDraggable=o.canMove=o.unselect=o.setSelected=o.selectSquare=o.dropNewPiece=o.userMove=o.baseNewPiece=o.baseMove=o.unsetPredrop=o.unsetPremove=o.setCheck=o.setPieces=o.reset=o.toggleOrientation=o.callUserFunction=void 0;const n=e("./util"),r=e("./premove");function s(e,...t){e&&setTimeout(()=>e(...t),1)}function i(e){e.premovable.current&&(e.premovable.current=void 0,s(e.premovable.events.unset))}function a(e){const t=e.predroppable;t.current&&(t.current=void 0,s(t.events.unset))}function c(e,t,o){const r=e.pieces.get(t),i=e.pieces.get(o);if(t===o||!r)return!1;const a=i&&i.color!==r.color?i:void 0;return o===e.selected&&f(e),s(e.events.move,t,o,a),function(e,t,o){if(!e.autoCastle)return!1;const r=e.pieces.get(t);if(!r||"king"!==r.role)return!1;const s=n.key2pos(t),i=n.key2pos(o);if(0!==s[1]&&7!==s[1]||s[1]!==i[1])return!1;4!==s[0]||e.pieces.has(o)||(6===i[0]?o=n.pos2key([7,i[1]]):2===i[0]&&(o=n.pos2key([0,i[1]])));const a=e.pieces.get(o);return!(!a||a.color!==r.color||"rook"!==a.role||(e.pieces.delete(t),e.pieces.delete(o),s[0]<i[0]?(e.pieces.set(n.pos2key([6,i[1]]),r),e.pieces.set(n.pos2key([5,i[1]]),a)):(e.pieces.set(n.pos2key([2,i[1]]),r),e.pieces.set(n.pos2key([3,i[1]]),a)),0))}(e,t,o)||(e.pieces.set(o,r),e.pieces.delete(t)),e.lastMove=[t,o],e.check=void 0,s(e.events.change),a||!0}function l(e,t,o,r){if(e.pieces.has(o)){if(!r)return!1;e.pieces.delete(o)}return s(e.events.dropNewPiece,t,o),e.pieces.set(o,t),e.lastMove=[o],e.check=void 0,s(e.events.change),e.movable.dests=void 0,e.turnColor=n.opposite(e.turnColor),!0}function d(e,t,o){const r=c(e,t,o);return r&&(e.movable.dests=void 0,e.turnColor=n.opposite(e.turnColor),e.animation.current=void 0),r}function u(e,t,o){if(v(e,t,o)){const n=d(e,t,o);if(n){const r=e.hold.stop();f(e);const i={premove:!1,ctrlKey:e.stats.ctrlKey,holdTime:r};return!0!==n&&(i.captured=n),s(e.movable.events.after,t,o,i),!0}}else if(function(e,t,o){return t!==o&&m(e,t)&&-1!==r.premove(e.pieces,t,e.premovable.castle).indexOf(o)}(e,t,o))return function(e,t,o,n){a(e),e.premovable.current=[t,o],s(e.premovable.events.set,t,o,n)}(e,t,o,{ctrlKey:e.stats.ctrlKey}),f(e),!0;return f(e),!1}function p(e,t){e.selected=t,m(e,t)?e.premovable.dests=r.premove(e.pieces,t,e.premovable.castle):e.premovable.dests=void 0}function f(e){e.selected=void 0,e.premovable.dests=void 0,e.hold.cancel()}function g(e,t){const o=e.pieces.get(t);return!!o&&("both"===e.movable.color||e.movable.color===o.color&&e.turnColor===o.color)}function v(e,t,o){var n,r;return t!==o&&g(e,t)&&(e.movable.free||!!e.movable.dests&&!!e.movable.dests.get(t)&&-1!==(null===(r=null===(n=e.movable.dests)||void 0===n?void 0:n.get(t))||void 0===r?void 0:r.indexOf(o)))}function m(e,t){const o=e.pieces.get(t);return!!o&&e.premovable.enabled&&e.movable.color===o.color&&e.turnColor!==o.color}function h(e){i(e),a(e),f(e)}o.callUserFunction=s,o.toggleOrientation=function(e){e.orientation=n.opposite(e.orientation),e.animation.current=e.draggable.current=e.selected=void 0},o.reset=function(e){e.lastMove=void 0,f(e),i(e),a(e)},o.setPieces=function(e,t){for(const[o,n]of t)n?e.pieces.set(o,n):e.pieces.delete(o)},o.setCheck=function(e,t){if(e.check=void 0,!0===t&&(t=e.turnColor),t)for(const[o,n]of e.pieces)"king"===n.role&&n.color===t&&(e.check=o)},o.unsetPremove=i,o.unsetPredrop=a,o.baseMove=c,o.baseNewPiece=l,o.userMove=u,o.dropNewPiece=function(e,t,o,n){const r=e.pieces.get(t);r&&(function(e,t,o){const n=e.pieces.get(t);return!(!n||t!==o&&e.pieces.has(o)||"both"!==e.movable.color&&(e.movable.color!==n.color||e.turnColor!==n.color))}(e,t,o)||n)?(e.pieces.delete(t),l(e,r,o,n),s(e.movable.events.afterNewPiece,r.role,o,{premove:!1,predrop:!1})):r&&function(e,t,o){const n=e.pieces.get(t),r=e.pieces.get(o);return!!n&&(!r||r.color!==e.movable.color)&&e.predroppable.enabled&&("pawn"!==n.role||"1"!==o[1]&&"8"!==o[1])&&e.movable.color===n.color&&e.turnColor!==n.color}(e,t,o)?function(e,t,o){i(e),e.predroppable.current={role:t,key:o},s(e.predroppable.events.set,t,o)}(e,r.role,o):(i(e),a(e)),e.pieces.delete(t),f(e)},o.selectSquare=function(e,t,o){if(s(e.events.select,t),e.selected){if(e.selected===t&&!e.draggable.enabled)return f(e),void e.hold.cancel();if((e.selectable.enabled||o)&&e.selected!==t&&u(e,e.selected,t))return void(e.stats.dragged=!1)}(g(e,t)||m(e,t))&&(p(e,t),e.hold.start())},o.setSelected=p,o.unselect=f,o.canMove=v,o.isDraggable=function(e,t){const o=e.pieces.get(t);return!!o&&e.draggable.enabled&&("both"===e.movable.color||e.movable.color===o.color&&(e.turnColor===o.color||e.premovable.enabled))},o.playPremove=function(e){const t=e.premovable.current;if(!t)return!1;const o=t[0],n=t[1];let r=!1;if(v(e,o,n)){const t=d(e,o,n);if(t){const i={premove:!0};!0!==t&&(i.captured=t),s(e.movable.events.after,o,n,i),r=!0}}return i(e),r},o.playPredrop=function(e,t){const o=e.predroppable.current;let n=!1;if(!o)return!1;if(t(o)){l(e,{role:o.role,color:e.movable.color},o.key)&&(s(e.movable.events.afterNewPiece,o.role,o.key,{premove:!1,predrop:!0}),n=!0)}return a(e),n},o.cancelMove=h,o.stop=function(e){e.movable.color=e.movable.dests=e.animation.current=void 0,h(e)},o.getKeyAtDomPos=function(e,t,o){let r=Math.floor(8*(e[0]-o.left)/o.width);t||(r=7-r);let s=7-Math.floor(8*(e[1]-o.top)/o.height);return t||(s=7-s),r>=0&&r<8&&s>=0&&s<8?n.pos2key([r,s]):void 0},o.getSnappedKeyAtDomPos=function(e,t,o,s){const i=n.key2pos(e),a=n.allPos.filter(e=>r.queen(i[0],i[1],e[0],e[1])||r.knight(i[0],i[1],e[0],e[1])),c=a.map(e=>n.computeSquareCenter(n.pos2key(e),o,s)).map(e=>n.distanceSq(t,e)),[,l]=c.reduce((e,t,o)=>e[0]<t?e:[t,o],[c[0],0]);return n.pos2key(a[l])},o.whitePov=function(e){return"white"===e.orientation}},{"./premove":13,"./util":18}],4:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.Chessground=void 0;const n=e("./api"),r=e("./config"),s=e("./state"),i=e("./wrap"),a=e("./events"),c=e("./render"),l=e("./svg"),d=e("./util");function u(e){let t=!1;return()=>{t||(t=!0,requestAnimationFrame(()=>{e(),t=!1}))}}o.Chessground=function(e,t){const o=s.defaults();function p(){const t="dom"in o?o.dom.unbind:void 0,n=o.viewOnly&&!o.drawable.visible,r=i.renderWrap(e,o,n),s=d.memo(()=>r.board.getBoundingClientRect()),p=e=>{c.render(g),!e&&r.svg&&l.renderSvg(g,r.svg,r.customSvg)},f=()=>{s.clear(),c.updateBounds(g),r.svg&&l.renderSvg(g,r.svg,r.customSvg)},g=o;return g.dom={elements:r,bounds:s,redraw:u(p),redrawNow:p,unbind:t,relative:n},g.drawable.prevSvgHash="",p(!1),a.bindBoard(g,f),t||(g.dom.unbind=a.bindDocument(g,f)),g.events.insert&&g.events.insert(r),g}return r.configure(o,t||{}),n.start(p(),p)}},{"./api":2,"./config":5,"./events":9,"./render":14,"./state":15,"./svg":16,"./util":18,"./wrap":19}],5:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.configure=void 0;const n=e("./board"),r=e("./fen");function s(e,t){for(const o in t)i(e[o])&&i(t[o])?s(e[o],t[o]):e[o]=t[o]}function i(e){return"object"==typeof e}o.configure=function(e,t){var o,i;if((null===(o=t.movable)||void 0===o?void 0:o.dests)&&(e.movable.dests=void 0),(null===(i=t.drawable)||void 0===i?void 0:i.autoShapes)&&(e.drawable.autoShapes=[]),s(e,t),t.fen&&(e.pieces=r.read(t.fen),e.drawable.shapes=[]),"check"in t&&n.setCheck(e,t.check||!1),"lastMove"in t&&!t.lastMove?e.lastMove=void 0:t.lastMove&&(e.lastMove=t.lastMove),e.selected&&n.setSelected(e,e.selected),(!e.animation.duration||e.animation.duration<100)&&(e.animation.enabled=!1),!e.movable.rookCastle&&e.movable.dests){const t="white"===e.movable.color?"1":"8",o="e"+t,n=e.movable.dests.get(o),r=e.pieces.get(o);if(!n||!r||"king"!==r.role)return;e.movable.dests.set(o,n.filter(e=>!(e==="a"+t&&-1!==n.indexOf("c"+t)||e==="h"+t&&-1!==n.indexOf("g"+t))))}}},{"./board":3,"./fen":11}],6:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.cancel=o.end=o.move=o.dragNewPiece=o.start=void 0;const n=e("./board"),r=e("./util"),s=e("./draw"),i=e("./anim");function a(e){requestAnimationFrame(()=>{var t;const o=e.draggable.current;if(!o)return;(null===(t=e.animation.current)||void 0===t?void 0:t.plan.anims.has(o.orig))&&(e.animation.current=void 0);const n=e.pieces.get(o.orig);if(n&&r.samePiece(n,o.piece)){if(!o.started&&r.distanceSq(o.pos,o.origPos)>=Math.pow(e.draggable.distance,2)&&(o.started=!0),o.started){if("function"==typeof o.element){const e=o.element();if(!e)return;e.cgDragging=!0,e.classList.add("dragging"),o.element=e}const t=e.dom.bounds();r.translateAbs(o.element,[o.pos[0]-t.left-t.width/16,o.pos[1]-t.top-t.height/16])}}else c(e);a(e)})}function c(e){const t=e.draggable.current;t&&(t.newPiece&&e.pieces.delete(t.orig),e.draggable.current=void 0,n.unselect(e),l(e),e.dom.redraw())}function l(e){const t=e.dom.elements;t.ghost&&r.setVisible(t.ghost,!1)}function d(e,t){let o=e.dom.elements.board.firstChild;for(;o;){if(o.cgKey===t&&"PIECE"===o.tagName)return o;o=o.nextSibling}}o.start=function(e,t){if(!t.isTrusted||void 0!==t.button&&0!==t.button)return;if(t.touches&&t.touches.length>1)return;const o=e.dom.bounds(),c=r.eventPosition(t),l=n.getKeyAtDomPos(c,n.whitePov(e),o);if(!l)return;const u=e.pieces.get(l),p=e.selected;p||!e.drawable.enabled||!e.drawable.eraseOnClick&&u&&u.color===e.turnColor||s.clear(e),!1===t.cancelable||t.touches&&e.movable.color&&!u&&!p&&!function(e,t){const o=n.whitePov(e),s=e.dom.bounds(),i=Math.pow(s.width/8,2);for(const n in e.pieces){const e=r.computeSquareCenter(n,o,s);if(r.distanceSq(e,t)<=i)return!0}return!1}(e,c)||t.preventDefault();const f=!!e.premovable.current,g=!!e.predroppable.current;e.stats.ctrlKey=t.ctrlKey,e.selected&&n.canMove(e,e.selected,l)?i.anim(e=>n.selectSquare(e,l),e):n.selectSquare(e,l);const v=e.selected===l,m=d(e,l);if(u&&m&&v&&n.isDraggable(e,l)){e.draggable.current={orig:l,piece:u,origPos:c,pos:c,started:e.draggable.autoDistance&&e.stats.dragged,element:m,previouslySelected:p,originTarget:t.target},m.cgDragging=!0,m.classList.add("dragging");const s=e.dom.elements.ghost;s&&(s.className=`ghost ${u.color} ${u.role}`,r.translateAbs(s,r.posToTranslateAbs(o)(r.key2pos(l),n.whitePov(e))),r.setVisible(s,!0)),a(e)}else f&&n.unsetPremove(e),g&&n.unsetPredrop(e);e.dom.redraw()},o.dragNewPiece=function(e,t,o,n){const s="a0";e.pieces.set(s,t),e.dom.redraw();const i=r.eventPosition(o);e.draggable.current={orig:s,piece:t,origPos:i,pos:i,started:!0,element:()=>d(e,s),originTarget:o.target,newPiece:!0,force:!!n},a(e)},o.move=function(e,t){e.draggable.current&&(!t.touches||t.touches.length<2)&&(e.draggable.current.pos=r.eventPosition(t))},o.end=function(e,t){const o=e.draggable.current;if(!o)return;if("touchend"===t.type&&!1!==t.cancelable&&t.preventDefault(),"touchend"===t.type&&o.originTarget!==t.target&&!o.newPiece)return void(e.draggable.current=void 0);n.unsetPremove(e),n.unsetPredrop(e);const s=r.eventPosition(t)||o.pos,i=n.getKeyAtDomPos(s,n.whitePov(e),e.dom.bounds());i&&o.started&&o.orig!==i?o.newPiece?n.dropNewPiece(e,o.orig,i,o.force):(e.stats.ctrlKey=t.ctrlKey,n.userMove(e,o.orig,i)&&(e.stats.dragged=!0)):o.newPiece?e.pieces.delete(o.orig):e.draggable.deleteOnDropOff&&!i&&(e.pieces.delete(o.orig),n.callUserFunction(e.events.change)),(o.orig!==o.previouslySelected||o.orig!==i&&i)&&e.selectable.enabled||n.unselect(e),l(e),e.draggable.current=void 0,e.dom.redraw()},o.cancel=c},{"./anim":1,"./board":3,"./draw":7,"./util":18}],7:[function(e,t,o){"use strict";Object.defineProperty(o,"__esModule",{value:!0}),o.clear=o.cancel=o.end=o.move=o.processDraw=o.start=void 0;const n=e("./board"),r=e("./util"),s=["green","red","blue","yellow"];function i(e){requestAnimationFrame(()=>{const t=e.drawable.current;if(t){const o=n.getKeyAtDomPos(t.pos,n.whitePov(e),e.dom.bounds());o||(t.snapToValidMove=!1);const r=t.snapToValidMove?n.getSnappedKeyAtDomPos(t.orig,t.pos,n.whitePov(e),e.dom.bounds()):o;r!==t.mouseSq&&(t.mouseSq=r,t.dest=r!==t.orig?r:void 0,e.dom.redrawNow()),i(e)}})}function a(e){e.drawable.current&&(e.drawable.current=void 0,e.dom.redraw())}function c(e){var t;const o=(e.shiftKey||e.ctrlKey)&&r.isRightButton(e),n=e.altKey||e.metaKey||(null===(t=e.getModifierState)||void 0===t?void 0:t.call(e,"AltGraph"));return s[(o?1:0)+(n?2:0)]}function l(e){e.onChange&&e.onChange(e.shapes)}o.start=function(e,t){if(t.touches&&t.touches.length>1)return;t.stopPropagation(),t.preventDefault(),t.ctrlKey?n.unselect(e):n.cancelMove(e);const o=r.eventPosition(t),s=n.getKeyAtDomPos(o,n.whitePov(e),e.dom.bounds());s&&(e.drawable.current={orig:s,pos:o,brush:c(t),snapToValidMove:e.drawable.defaultSnapToValidMove},i(e))},o.processDraw=i,o.move=function(e,t){e.drawable.current&&(e.drawable.current.pos=r.eventPosition(t))},o.end=function(e){const t=e.drawable.current;t&&(t.mouseSq&&function(e,t){const 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