Paint-A-Wall

The Goal
Step 1. Set the stage
Step 2. Delete the cat
Step 3. Create the paintbrush
Step 4. Create additional costumes
Step 5. Make the paintbrush follow the mouse
Step 6. Make a splat!

The Goal

In this project, we’ll splash paint on a wall. Watch the movie below to see what we’ll work towards:

Step 1. Set the stage

Make a new project. Then change the color of the stage to black. Can you figure out how to do that?

Step 2. Delete the cat

Delete the cat sprite. Hint! Use the scissors tool. Can you figure out how to do that?

Step 3. Create the paintbrush

Click the paintbrush button to create a new sprite. Make it look like the red ball below:

 

Step 4. Create additional costumes

Click the Costumes tab, and then click the Paint button to create a new costume. Make a pattern that looks like paint splatters. Any kind of pattern can work! Try experimenting! When you’ve got a pattern you like, click OK to save the costume.

Repeat the instructions in the previous paragraph to create five more costumes (a total of six paint splatters of different kinds).

paintCostumes

Step 5. Make the paintbrush follow the mouse

When the green flag is clicked, any previous drawings are cleared from the screen. Then the first costume becomes active and the paintbrush (shaped like a ball) follows the mouse wherever it goes.

Can you use the commands below to accomplish these tasks?

paintFollowMouse
Hint!

  • You’ll need to change the order of the commands.
  • You’ll need to change the go to command. Can you figure out how?

Step 6. Make a splat!

When the mouse button is pressed, the paintbrush changes shape to one of the paint splatters you created. The particular splatter is chosen randomly so that you can’t predict which pattern will occur. At the same time, the color changes as well. Then the random pattern in its new color are copied onto the wall and stick there.

Can you use the commands below to achieve these effects?

paintSplat

Hint!

  • You’ll need to change the order of the commands.
  • You’ll need to use some commands more than once.

 

That’s it!


A project like this one was created by abbylita at http://scratch.mit.edu/projects/abbylita/315939.

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