Render large and clickable grid wpf?

I'm trying to create a large grid which cells have drawn a clickable (click event) ellipsis. I'm using a Canvas as ...

String of moving sprites following the player, most efficient way to do it??

I'm working on a JavaScript game using Phaser, where the player picks up blobs and the blobs then follow the player....

What is the most effective way for float and double comparison??

What would be the most efficient way to compare two double or two float values? Simply doing this is not correct: ...