add movement check, score addition
[2048.git] / js / html_actuator.js
blob:a/js/html_actuator.js -> blob:b/js/html_actuator.js
function HTMLActuator() { function HTMLActuator() {
this.tileContainer = document.getElementsByClassName("tile-container")[0]; this.tileContainer = document.getElementsByClassName("tile-container")[0];
this.gameContainer = document.getElementsByClassName("game-container")[0]; this.gameContainer = document.getElementsByClassName("game-container")[0];
this.scoreContainer = document.getElementsByClassName("score-container")[0]; this.scoreContainer = document.getElementsByClassName("score-container")[0];
   
this.score = 0; this.score = 0;
} }
   
HTMLActuator.prototype.actuate = function (grid, metadata) { HTMLActuator.prototype.actuate = function (grid, metadata) {
var self = this; var self = this;
   
window.requestAnimationFrame(function () { window.requestAnimationFrame(function () {
self.clearContainer(self.tileContainer); self.clearContainer(self.tileContainer);
   
grid.cells.forEach(function (column) { grid.cells.forEach(function (column) {
column.forEach(function (cell) { column.forEach(function (cell) {
if (cell) { if (cell) {
self.addTile(cell); self.addTile(cell);
} }
}); });
}); });
   
self.updateScore(metadata.score); self.updateScore(metadata.score);
   
if (metadata.over) { if (metadata.over) self.message(false); // You lose
self.gameOver(); if (metadata.won) self.message(true); // You win!
}  
}); });
}; };
   
HTMLActuator.prototype.clearContainer = function (container) { HTMLActuator.prototype.clearContainer = function (container) {
while (container.firstChild) { while (container.firstChild) {
container.removeChild(container.firstChild); container.removeChild(container.firstChild);
} }
}; };
   
HTMLActuator.prototype.addTile = function (tile) { HTMLActuator.prototype.addTile = function (tile) {
var self = this; var self = this;
   
var element = document.createElement("div"); var element = document.createElement("div");
var position = tile.previousPosition || { x: tile.x, y: tile.y }; var position = tile.previousPosition || { x: tile.x, y: tile.y };
positionClass = this.positionClass(position); positionClass = this.positionClass(position);
   
element.classList.add("tile", "tile-" + tile.value, positionClass); element.classList.add("tile", "tile-" + tile.value, positionClass);
element.textContent = tile.value; element.textContent = tile.value;
   
this.tileContainer.appendChild(element); this.tileContainer.appendChild(element);
   
if (tile.previousPosition) { if (tile.previousPosition) {
window.requestAnimationFrame(function () { window.requestAnimationFrame(function () {
element.classList.remove(element.classList[2]); element.classList.remove(element.classList[2]);
element.classList.add(self.positionClass({ x: tile.x, y: tile.y })); element.classList.add(self.positionClass({ x: tile.x, y: tile.y }));
}); });
} else if (tile.mergedFrom) { } else if (tile.mergedFrom) {
element.classList.add("tile-merged"); element.classList.add("tile-merged");
tile.mergedFrom.forEach(function (merged) { tile.mergedFrom.forEach(function (merged) {
self.addTile(merged); self.addTile(merged);
}); });
} else { } else {
element.classList.add("tile-new"); element.classList.add("tile-new");
} }
}; };
   
HTMLActuator.prototype.normalizePosition = function (position) { HTMLActuator.prototype.normalizePosition = function (position) {
return { x: position.x + 1, y: position.y + 1 }; return { x: position.x + 1, y: position.y + 1 };
}; };
   
HTMLActuator.prototype.positionClass = function (position) { HTMLActuator.prototype.positionClass = function (position) {
position = this.normalizePosition(position); position = this.normalizePosition(position);
return "tile-position-" + position.x + "-" + position.y; return "tile-position-" + position.x + "-" + position.y;
}; };
   
HTMLActuator.prototype.updateScore = function (score) { HTMLActuator.prototype.updateScore = function (score) {
this.clearContainer(this.scoreContainer); this.clearContainer(this.scoreContainer);
   
var difference = score - this.score; var difference = score - this.score;
this.score = score; this.score = score;
   
this.scoreContainer.textContent = this.score; this.scoreContainer.textContent = this.score;
   
if (difference) { if (difference) {
var addition = document.createElement("div"); var addition = document.createElement("div");
addition.classList.add("score-addition"); addition.classList.add("score-addition");
addition.textContent = "+" + difference; addition.textContent = "+" + difference;
   
this.scoreContainer.appendChild(addition); this.scoreContainer.appendChild(addition);
} }
}; };
   
HTMLActuator.prototype.gameOver = function () { HTMLActuator.prototype.message = function (won) {
this.gameContainer.classList.add("game-over"); var type = won ? "game-won" : "game-over";
  this.gameContainer.classList.add(type);
}; };
   
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