Code.org CSD Unit 3 Lessons 1-12

A series of images that create the illusion of motion by being shown rapidly one after the other.

• frame

• property

• animation

• sprite

Attributes that describe an object's characteristics.

• Frame

• KeyDown

• Property

• DrawLoop

A single image within an animation.

• Frame Rate

• IF Statement

• set animation

• Frame

A graphic character on the screen with properties that describe its location, movement, and look.

• Frame Rate

• DrawLoop

• Property

• Sprite

If you wanted to make a sprite twice as big as it currently looks which code would you use?

• sprite.y

• sprite.scale

• sprite.rotation

• sprite.setAnimattion

This plane looks like someone is smearing a stamp across a paper.

How would you fix this code so that it looks likes the plane is smoothly moving across the scene? (Click on image to enlarge.)

• (line 8) increase the speed of the plane in the draw loop.

• (line 7) add plane.rotation into the draw loop

• (line 4) add a drawSprites

• (line 3) move the background code into the draw loop so that it makes a new background each loop

What is the name of the sprite variable in the code pictured? (Click on picture to enlarge.)

• fly

• ladybug

• bug

• space

What keyboard key do you need press to move the sprite?

• x

• y

• up arrow

• space

Which direction will the sprite move in the code pictured? (Click on picture to enlarge.)

• Left

• Right

• Up

• Down

The common programming structure that implements "conditional statements".

• IF Statement

• Boolean

• Expression

• Variable