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Levels.js
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140 lines (136 loc) · 4.26 KB
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var Levels = Levels || {};
Levels.ONE = {
"id" : 1,
"choicesGiven":6,
"range" : {"start":0,"end":9},
"points" : 5,
"type" : "Level"
};
Levels.TABLE = {
"id" : 1,
"choicesGiven":6,
"range" : {"start":0,"end":10},
"points" : 5,
"type" : "Table"
};
Levels.NextLevel = function(prevLevel) {
var nxtLevel = Levels.ONE;
if(prevLevel && prevLevel.type == Levels.TABLE.type) {
Levels.TABLE.id = Levels.TABLE.id + 1;
//re-initialize problems
Levels.TABLE.problems = [];
nxtLevel = Levels.TABLE;
} else {
nxtLevel = (prevLevel) ? {
"id" : prevLevel.id + 1,
"choicesGiven":6,
"range" : {"start":prevLevel.range.end+1,"end":prevLevel.range.end + 10},
"points" : prevLevel.points + 1,
"type" : prevLevel.type
} : Levels.ONE;
}
return nxtLevel;
};
Levels.findLevel = function(id) {
var tmpLevel = Levels.ONE;
while(id && Number.isInteger(id) && id < 1000 && id > 0 && id > tmpLevel.id) {
tmpLevel = Levels.NextLevel(tmpLevel)
}
return tmpLevel;
};
Levels.CurrentLevel = {
Instance : function() {
return StorageUtils.getJSON("CURRENT_LEVEL");
},
ALL_PROBLEMS : [],
initAllProblems : function() {
var allProblems = Levels.CurrentLevel.ALL_PROBLEMS;
if(allProblems.length == 0) {
var allProblemRangeEnd = 26;
for(var i = 0; i < allProblemRangeEnd; i++) {
for(var j = 0; j < allProblemRangeEnd; j++) {
if(i < 2 || j < 2) {
//for lower number put only 1 out of 5
if(RandomUtils.getRandomInt(1,100) % 5 == 0) {
allProblems.push(new MultiplicationProblem(i,j));
}
} else {
allProblems.push(new MultiplicationProblem(i,j));
}
}
}
}
return allProblems;
},
initTableProblems : function(level) {
var tableProblems = [];
if(Levels.TABLE.type == level.type) {
for(var i = Levels.TABLE.range.start; i < Levels.TABLE.range.end;i++){
tableProblems.push(new MultiplicationProblem(Levels.TABLE.id,i));
tableProblems.push(new MultiplicationProblem(i,Levels.TABLE.id));
}
}
return tableProblems;
},
generateProblems : function(level) {
var problems = new Array();
if(level.type == Levels.TABLE.type) {
problems = problems.concat(Levels.CurrentLevel.initTableProblems(level));
} else {
var range = level.range;
//Generate all problems if not already done
var allProblems = Levels.CurrentLevel.initAllProblems();
if(allProblems.length > range.end) {
problems = problems.concat(allProblems.slice(range.start,range.end));
}
//Randomly add some problems from previous levels.
if(range.start > 0 ) {
var allProblemsFromPrevLevels = ArrayUtils.shuffle(allProblems.slice(0,range.start));
//picking random 5 problems
problems = problems.concat(allProblemsFromPrevLevels.slice(0,4));
}
}
return problems;
},
initialize : function(level) {
//default start with level one
if(!level || !level.id) {
level = Levels.ONE;
}
if(level) {
if(!level.problems || level.problems.length == 0) {
level.problems = ArrayUtils.shuffle(Levels.CurrentLevel.generateProblems(level));
}
var lvlStr = JSON.stringify(level);
StorageUtils.setItem("CURRENT_LEVEL",lvlStr);
$("#levelHeading").text(level.id);
$("#levelMessage").text((level.type) ? level.type : "Level");
$(".answerChoice").show();
$("#nextLevel").hide();
showPoints();
console.log('Level initialized ' + lvlStr);
}
},
findNextProblem : function() {
var level = CurrentLevel.Instance();
if(level.problems.length > 0) {
var problem = level.problems.last();
return new MultiplicationProblem(problem.first, problem.second);
}
},
moveProblemToEnd : function() {
var level = CurrentLevel.Instance();
if(level.problems.length > 0) {
var problem = level.problems.pop();
level.problems.unshift(problem);
StorageUtils.setItem("CURRENT_LEVEL",JSON.stringify(level));
}
},
removeLastProblem : function(problem) {
var level = CurrentLevel.Instance();
if(level.problems.length > 0) {
level.problems.pop();
StorageUtils.setItem("CURRENT_LEVEL",JSON.stringify(level));
}
}
};