my2048/support2048.js at master · badden/my2048 · GitHub

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documentWidth=window.screen.availWidth;
gridContainerWidth=0.92*documentWidth;
cellSideLength=0.18*documentWidth;
cellSpace=0.04*documentWidth;

function getPosTop(i,j){
	return cellSpace+i*(cellSpace+cellSideLength);
}

function getPosLeft(i,j){
	return cellSpace+j*(cellSpace+cellSideLength);
}

function getNumberBackgroundColor(number){
	switch(number){
		case 2:return "#eee4da";break;
		case 4:return "#ede0c8";break;
		case 8:return "#f2b179";break;
		case 16:return "#f59563";break;
		case 32:return "#f67c5f";break;
		case 64:return "#f65e3b";break;
		case 128:return "#eedef72";break;
		case 256:return "#edcc61";break;
		case 512:return "#9c0";break;
		case 1024:return "#33b5e5";break;
		case 2048:return "#09c";break;
		case 4098:return "#a6c";break;
		case 8192:return "#93c";break;

	}

	return "black";
}

function getNumberColor(number){
	if (number<=4)
		return "#776e65";

	return "white";

}

function nospace(board){
	for(var i=0;i<4;i++)
		for(var j=0;j<4;j++)
			if(board[i][j]==0)
				return false;

	return true;
}

function canMoveLeft(board){
	for(var i=0;i<4;i++)
		for(var j=1;j<4;j++)
			if(board[i][j]!=0)
				if(board[i][j-1]==0 || board[i][j-1]==board[i][j])
					return true;
	return false;
}


function canMoveUp(board){
		for(var j=0;j<4;j++)
			for(var i=1;i<4;i++)
			if(board[i][j]!=0)
				if(board[i-1][j]==0 || board[i-1][j]==board[i][j])
					return true;

	return false;
}


function canMoveRight(board){
	for(var i=0;i<4;i++)
		for(var j=2;j>=0;j--)
			if(board[i][j]!=0)
				if(board[i][j+1]==0 || board[i][j]==board[i][j+1])
					return true;

	return false;
}

function canMoveDown(board){
	for(var j=0;j<4;j++)
		for(var i=2;i>=0;i--)
			if(board[i][j]!=0)
				if(board[i+1][j]==0 || board[i][j]==board[i+1][j])
					return true;

	return false;
}

function noBlockHorizontal(row,col1,col2,board){
	for(var i=col1+1;i<col2;i++)
		if(board[row][i]!=0)
			return false;

	return true;

}

function noBlockVertical(row,col1,col2,board){
	for(var i=col1+1;i<col2;i++)
		if(board[i][row]!=0)
			return false;

	return true;
}

function nomove(board){
	if(
		canMoveLeft(board) ||
		canMoveUp(board) ||
		canMoveRight(board) ||
		canMoveDown(board) )
		return false;

	return true;
}