This is a project I originally made with the cloning features in the Scratch 2.0 Preview from Scratch Day 2011. It's very rough, but it shows the potential of cloning. This game is based on a game called "Powder" made with Java - you can play it here: http://dan-ball.jp/en/javagame/dust/ Use the left and right arrow keys to switch tools. Only "powder" and "water" are currently available. The physics aren't perfect, but they work generally well, with the exception that powder doesn't dissolve with water (which it does in the real game). One of the challenges of this game was sensing and collision between the dots. There's no "if touching clone" block, so I used lists to give each dot its own unique position. Color sensing would work, but it would be much slower and inefficient, since each dot would have to move to each of its surrounding spaces to see what was there, and then decide what action to take. I hope to improve the game as Scratch 2.0 develops. :)
