socket.to(socket.id).emit - Not Working

[mla]

It seems that to send a private message to a player, you are supposed to use socket.to(socket.id).emit. 

I need to emit an image to a specific player so am using this concept, however it doesn't seem to work. 

Would anyone know how to emit an image to a specific client?

Thanks!

[mla]

Okay, I think I just answered my own question.  I need a room.id for each and then broadcast to the room. 

If anyone knows a better way, please do let me know.

Thanks,

Laura

[mla]

Update on this - when I emit a private message it works, when I emit a private picture on canvas, it doesn't work. 

Any ideas why this would be?

Thanks!

[GameDev Quest]

Can you provide sample code?

 

[mla]

server code:

var myroom = 'room' + playerNumber;
socket.join(myroom);
io.sockets.in(myroom).emit('showCard', {x: newPlayer.getX, y: newPlayer.getY, objCard: newPlayer.getobjCard});

client code:

socket.on('showCard', function(data){
var objCard = new Image();
	objCard.onload = function() {
		context.drawImage(objCard, data.x+100, data.y);
		console.log('image card');
	}
	objCard.src = data.objCard;
	
});

I emit 'message' and it works, but not when I try to show an image. If I simply use, io.sockets.emit, the image displays, but to all rooms. I only want it in one room.

[mla]

Figured it out. Emit an image in a room does work. I just had my socket.on, placed in the wrong file. 

Added to the correct client file and it all works great!