I'm working on an isometric game and originally I was using a tile size ratio of 2:1. After doing some research, it looks like the standard now seems to be a ratio of 4:3 for mobile games, so I began converting it to 4:3, but now I'm having issues with tile picking. Originally I was using the following code to perform the pick, and this works perfect when the tile size ratio is 2:1:

// mouseX & mouseY are the screen space pick locations var gridSize = 10; var tileWidth = 200; var tileHeight = 100; // 200/100 = ratio of 2:1 var tileY = ((mouseY*2)-((gridSize*tileWidth)/2)+mouseX)/2; var tileX = mouseX - tileY; tileY = Math.round(tileY/tileHeight); tileX = Math.round(tileX/tileHeight);

When I change tileHeight to 150, which changes the ratio to 4:3, this code obviously no longer works. I'm having trouble getting the math right on this one with the new ratio - anyone have any experience with this?