'use strict';window.onload=function(){var keyMap={32:'SPACE',37:'LEFT',38:'UP',39:'RIGHT',40:'DOWN'};var currentStage=document.getElementById('currentStage'),stageSelect=document.getElementById('stageSelect'),gotoStage=document.getElementById('gotoStage');for(var i=0;i<maps.length;i++){var option=document.createElement('option');option.textContent='Level '+(i+1);stageSelect.appendChild(option);}
var emptyImage=document.getElementById('emptyImage'),wallImage=document.getElementById('wallImage'),floorImage=document.getElementById('floorImage'),targetImage=document.getElementById('targetImage'),cargoImage=document.getElementById('cargoImage'),cargoOnTargetImage=document.getElementById('cargoOnTargetImage'),keeperImage=document.getElementById('keeperImage'),keeperOnTargetImage=document.getElementById('keeperOnTargetImage');document.body.removeChild(emptyImage);document.body.removeChild(wallImage);document.body.removeChild(floorImage);document.body.removeChild(targetImage);document.body.removeChild(cargoImage);document.body.removeChild(cargoOnTargetImage);document.body.removeChild(keeperImage);document.body.removeChild(keeperOnTargetImage);var canvas=document.createElement('canvas');var context=canvas.getContext('2d');var patterns={0:context.createPattern(emptyImage,'repeat'),1:context.createPattern(wallImage,'repeat'),2:context.createPattern(floorImage,'repeat'),3:context.createPattern(targetImage,'repeat'),4:context.createPattern(cargoImage,'repeat'),5:context.createPattern(cargoOnTargetImage,'repeat'),6:context.createPattern(keeperImage,'repeat'),7:context.createPattern(keeperOnTargetImage,'repeat')};var sokoban=new Sokoban(patterns);document.addEventListener('keydown',function(event){var handled=false;switch(keyMap[event.keyCode]){case 'UP':sokoban.moveUp();handled=true;break;case 'LEFT':sokoban.moveLeft();handled=true;break;case 'RIGHT':sokoban.moveRight();handled=true;break;case 'DOWN':sokoban.moveDown();handled=true;break;case 'SPACE':sokoban.playMap(sokoban.mapIndex);handled=true;default:break;}
if(handled){event.preventDefault();}});sokoban.on('stageStarted',function(){currentStage.textContent=this.mapIndex+1;stageSelect.children[this.mapIndex].selected=true;});gotoStage.addEventListener('click',function(event){var i;for(i=0;i<stageSelect.children.length;i++){if(stageSelect.children[i].selected){sokoban.playMap(i);}}});sokoban.play();}