support2048.js

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 "#edcf72" ;break;
		case 256:return "#edcc61" ;break;
		case 512:return "#9c0" ;break;
		case 1024:return "#33b5e5" ;break;
		case 2048:return "#09c" ;break;
		case 4096: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 noBlockHorizontal(row, col1, col2,board){
	for (var i = col1+1;i<col2;i++)
		if(board[row][i]!=0)
			return false;

	return true;
}

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

function noBlockVertical(row1,row2,col,board){
	for(var i=row1+1;i<row2;i++){
		if(board[i][col]!=0)
			return false;
	}
	return true;
}

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+1]==board[i][j])
					return true;
			}
		}
	}
	return false;
}

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

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

	return true;
}