Programming: TheFrog Maze

They make the program run faster.

They help objects avoid obstacles.

They make the program look more colorful.

They allow the program to store more data.

To collect coins

To avoid obstacles

To get its birthday gift

To jump over logs

The x coordinate controls left and right movement.

The y coordinate controls up and down movement.

The centre of the stage is at (0, 0).

Negative y values move the sprite up.

x coordinate

y coordinate

z coordinate

time coordinate

To move the frog up the screen when the up arrow is pressed

To move the frog down the screen when the up arrow is pressed

To change the frog's color

To make the frog jump to a random position

So the frog keeps moving without pressing any key

So the frog moves only once

So the frog can respond to key presses at any time

So the frog disappears from the screen

The gift would appear at the top of the screen

The gift would disappear

The gift would move with the frog

The gift would change color

set size to, go to x: y:

change y by, if key pressed

repeat until, wait

switch costume to, play sound

The frog moves more quickly.

The frog moves more slowly.

The frog does not move.

The frog moves in the opposite direction.

Change y by 10 and change y by -10

Change x by 10 and change x by -10

Set size to 50% and go to x: 0 y: -150

Forever and wait 1 second

When green flag clicked

Set size to 50%

Set x and y to 0

Forever

A 'forever' loop repeats actions endlessly, while a 'repeat until' loop stops when a condition is met.

A 'repeat until' loop repeats actions endlessly, while a 'forever' loop stops when a condition is met.

Both loops repeat actions endlessly.

Both loops stop when a condition is met.

The snake says 'caught you!' and the program stops.

The snake keeps moving forever.

The frog disappears.

The snake changes color.

repeat until, touching Frog, move steps, if on edge bounce

forever, move steps, say caught you

repeat until, set size, go to x y

forever, touching edge, stop all

To store several program commands and make programs shorter and easier to read

To make the frog move faster in the maze

To increase the difficulty of the game

To create more obstacles for the frog