hextris/js/main.js

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JavaScript
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function scaleCanvas() {
canvas.width = $(window).width();
canvas.height = $(window).height();
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if (canvas.height > canvas.width) {
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settings.scale = (canvas.width/800) * settings.baseScale;
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} else {
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settings.scale = (canvas.height/800) * settings.baseScale;
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}
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trueCanvas = {
width:canvas.width,
height:canvas.height
};
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if (window.devicePixelRatio) {
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//from https://gist.github.com/joubertnel/870190
var cw = $("#canvas").attr('width');
var ch = $("#canvas").attr('height');
$("#canvas").attr('width', cw * window.devicePixelRatio);
$("#canvas").attr('height', ch * window.devicePixelRatio);
$("#canvas").css('width', cw);
$("#canvas").css('height', ch);
trueCanvas = {
width:cw,
height:ch
};
ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
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}
}
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function toggleDevTools() {
$('#devtools').toggle();
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}
function resumeGame() {
gameState = 1;
hideUIElements();
$('#pauseBtn').show();
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$('#restartBtn').show();
importing = 0;
startTime = Date.now();
setTimeout(function(){
$('.helpText').fadeOut(150, "linear");
}, 7000);
if ($('#helpScreen').is(":visible")) {
$('#helpScreen').fadeOut(150, "linear");
}
}
function hideUIElements() {
$('#pauseBtn').hide();
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$('#restartBtn').hide();
$('#startBtn').hide();
}
function init(b) {
if (b) {
if (!$('.helpText').is(":visible")) {
$('.helpText').fadeIn(150, "linear");
}
if ($('#helpScreen').is(":visible")) {
$('#helpScreen').fadeOut(150, "linear");
}
setTimeout(function() {
$('.helpText').fadeOut(150, "linear");
}, 7000);
clearSaveState();
}
hideUIElements();
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var saveState = localStorage.getItem("saveState") || "{}";
saveState = JSONfn.parse(saveState);
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document.getElementById("canvas").className = "";
history = {};
importedHistory = undefined;
importing = 0;
isGameOver = 2;
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score = saveState.score || 0;
prevScore = 0;
spawnLane = 0;
op = 0;
scoreOpacity = 0;
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gameState = 1;
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$("#restartBtn").show();
$("#pauseBtn").show();
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if(saveState.hex !== undefined) gameState = 1;
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scaleCanvas();
settings.blockHeight = settings.baseBlockHeight * settings.scale;
settings.hexWidth = settings.baseHexWidth * settings.scale;
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MainHex = saveState.hex || new Hex(settings.hexWidth);
if (saveState.hex) {
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MainHex.playThrough += 1;
}
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MainHex.sideLength = settings.hexWidth;
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var i;
var block;
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if(saveState.blocks) {
saveState.blocks.map(function(o){
if (rgbToHex[o.color]) {
o.color = rgbToHex[o.color];
}
});
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for(i=0; i<saveState.blocks.length; i++) {
block = saveState.blocks[i];
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blocks.push(block);
}
}
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else {
blocks = [];
}
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gdx = saveState.gdx || 0;
gdy = saveState.gdy || 0;
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comboTime = saveState.comboTime || 0;
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for(i=0; i<MainHex.blocks.length; i++) {
for (var j=0; j<MainHex.blocks[i].length; j++) {
MainHex.blocks[i][j].height = settings.blockHeight;
MainHex.blocks[i][j].settled = 0;
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}
}
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MainHex.blocks.map(function(i){
i.map(function(o){
if (rgbToHex[o.color]) {
o.color = rgbToHex[o.color];
}
});
});
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MainHex.y = -100;
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startTime = Date.now();
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waveone = saveState.wavegen || new waveGen(MainHex,Date.now(),[1,1,0],[1,1],[1,1]);
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MainHex.texts = []; //clear texts
MainHex.delay = 15;
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hideText();
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}
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function addNewBlock(blocklane, color, iter, distFromHex, settled) { //last two are optional parameters
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iter *= settings.speedModifier;
if (!history[MainHex.ct]) {
history[MainHex.ct] = {};
}
history[MainHex.ct].block = {
blocklane:blocklane,
color:color,
iter:iter
};
if (distFromHex) {
history[MainHex.ct].distFromHex = distFromHex;
}
if (settled) {
blockHist[MainHex.ct].settled = settled;
}
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blocks.push(new Block(blocklane, color, iter, distFromHex, settled));
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}
function exportHistory() {
$('#devtoolsText').html(JSON.stringify(history));
toggleDevTools();
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}
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function setStartScreen() {
$('#startBtn').show();
init();
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if (isStateSaved()) {
importing = 0;
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} else {
importing = 1;
}
$('#pauseBtn').show();
$('#restartBtn').show();
$('#startBtn').show();
gameState = 0;
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requestAnimFrame(animLoop);
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}
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//t: current time, b: begInnIng value, c: change In value, d: duration
function getStepDY(t, b, c, d) {
if ((t/=d) < (1/2.75)) {
return c*(7.5625*t*t) + b;
} else if (t < (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t + 0.75) + b;
} else if (t < (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b;
} else {
return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b;
}
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}
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function animLoop() {
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switch (gameState) {
case 1:
requestAnimFrame(animLoop);
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if (!MainHex.delay) {
update();
} else {
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MainHex.delay--;
}
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render();
if (checkGameOver() && !importing) {
$('.helpText').fadeIn(200, "linear");
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gameState = 2;
setTimeout(function(){
enableRestart();
}, 200);
canRestart = 0;
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clearSaveState();
}
break;
case 0:
requestAnimFrame(animLoop);
if (importing) {
update();
}
render();
break;
case -1:
requestAnimFrame(animLoop);
render();
break;
case 2:
requestAnimFrame(animLoop);
update();
render();
break;
case 3:
requestAnimFrame(animLoop);
fadeOutObjectsOnScreen();
render();
break;
case 4:
setTimeout(function(){initialize(1)}, 1);
render();
return;
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default:
initialize();
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setStartScreen();
break;
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}
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}
function enableRestart() {
canRestart = 1;
}
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function updateHighScore(){
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if(localStorage.getItem('highscores')){
highscores = localStorage.getItem('highscores').split(',').map(Number);
}
for (var i = 0; i < numHighScores; i++) {
if (highscores[i] <= score) {
highscores.splice(i, 0, score);
highscores = highscores.slice(0,-1);
break;
}
}
localStorage.setItem('highscores', highscores);
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}
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function isInfringing(hex){
for(var i=0;i<hex.sides;i++){
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var subTotal=0;
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for (var j=0;j<hex.blocks[i].length;j++){
subTotal+=hex.blocks[i][j].deleted ;
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}
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if (hex.blocks[i].length- subTotal>settings.rows){
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return true;
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}
}
return false;
}
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function checkGameOver() {
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for (var i = 0; i < MainHex.sides; i++) {
if (isInfringing(MainHex)) {
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updateHighScore();
gameOverDisplay();
return true;
}
}
return false;
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}
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function showHelp(){
if(gameState != 0){
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pause(1);
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}
$('#helpScreen').fadeToggle(150, "linear");
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}