Programming 301

1. Which of these values can be stored in a variable?

• true
• pink
• 1
• All of these values can be stored in a variable.

2. Which of these values can be stored in a variable?

• false
• 10
• 0
• All of these values can be stored in a variable.

3. What does this code block do to the blue dragon Actor? {"func":"registerSpriteTrigger","next":{"func":"blockVarSet","values":[{"type":"string","value":"dragonColor"},{"type":"string","value":"blue"}]}}

• When the player clicks on the blue dragon, the value of the dragonColor variable is set to blue.
• When the player clicks on the blue dragon, the value of the dragonColor variable is set to true.
• At the start of the program, the value of the dragonColor variable is set to blue.
• At the start of the program, the value of the dragonColor variable is set to true.

4. Which code block checks if the value of the dragonColor variable is set to pink?

• {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueOpEqual","values":[{"type":"wrapper","func":"valueVar","name":"dragonColor"},{"type":"string","value":"pink"}]}],"containers":[null]}
• {"func":"blockVarSet","values":[{"type":"string","value":"dragonColor"},{"type":"string","value":"pink"}]}
• {"func":"blockVarChangeBy","values":[{"type":"string","value":"dragonColor"},{"type":"number","value":"1"}]}
• {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueVar","name":"dragonColor"}],"containers":[null]}

5. Which code block sets the dragonColor variable to blue?

• {"func":"blockVarSet","values":[{"type":"string","value":"dragonColor"},{"type":"string","value":"blue"}]}
• {"func":"blockVarSet","values":[{"type":"string","value":"dragonColor"},{"type":"string","value":"pink"}]}
• {"type":"wrapper","func":"valueOpEqual","values":[{"type":"wrapper","func":"valueVar","name":"dragonColor"},{"type":"string","value":"blue"}]}
• {"func":"blockVarChangeBy","values":[{"type":"string","value":"dragonColor"},{"type":"number","value":"2"}]}

6. What does this code block do to the dragon Actor? {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueOpEqual","values":[{"type":"wrapper","func":"valueVar","name":"dragonColor"},{"type":"string","value":"pink"}]}],"containers":[{"func":"blockLooksSwitchCostume","values":[{"type":"string","value":"Pink Flying 01"}]}]}

• If the current value of the dragonColor variable is pink, then the dragon will switch to its pink dragon Costume.
• If the current Costume is the pink dragon Costume, then the value of the dragonColor variable will be set to pink.
• If the current value of the dragonColor variable is pink, then the dragon will switch to the next Costume it currently has.
• When we set the value of the dragonColor variable to pink, we rename the current Costume to "Pink Flying 01".

7. What is the difference between these two code blocks? {"func":"blockPenClear"}{"func":"blockLooksClearEffects"}

• The Clear block is used to clear pen drawings on the Stage. The Clear Graphic Effects block is used to clear graphic effects for that Actor.
• The Clear block is used to clear graphic effects for that Actor. The Clear Graphic Effects block is used to clear pen drawings on the Stage.
• The two blocks can be used interchangeably.
• The Clear block is used to clear drawings created by that Actor. The Clear Graphic Effects block is used to reset the pen tools.

8. What does this code block do to an Actor? {"func":"blockMotionRotationStyle","values":[{"type":"choice","value":"don't rotate"}]}

• It makes the Actor appear to not rotate. Even if the Actor points in different directions, the image of the Actor will face the same way. It can still move in different directions.
• It makes the Actor appear to only flip left and right. Even if the Actor points in different directions, the image of the Actor will only face left and right. It can still move in different directions.
• It makes the Actor appear to rotate. It can still move in different directions.
• It prevents the Actor from pointing in different directions. The actor will appear to not rotate, and if it moves, it can only move in one direction.

9. Which layer will always appear to be on the very bottom?

• Layer 0
• Layer 1
• Layer 10
• Layer 5

10. What is the difference between these two code blocks? {"func":"blockControlBroadcast","values":[{"type":"string","value":"game.start"}]}{"func":"blockControlPostMessage","values":[{"type":"string","value":"game.start"},{"type":"string","value":""},{"type":"string","value":""}]}

• The Broadcast block sends the message to all Actors, including the Stage. The Send Message To block sends the message to a specific Actor (or the Stage) and can include a value.
• The Broadcast block sends the message to a specific Actor (or the Stage) and can include a value. The Send Message To block sends the message to all Actors, including the Stage.
• There is no difference between the two blocks.
• The Broadcast block is used by the Stage. The Send Message To block is used by Actors.

11. True or false: You can only use the Change Variable By block on variables with numerical values. {"func":"blockVarChangeBy","values":[{"type":"string","value":"myVariable"},{"type":"number","value":""}]}

• True
• False

12. True or false: The dragonColor variable can be changed through the Change Variable By block. {"func":"blockVarChangeBy","values":[{"type":"string","value":"dragonColor"},{"type":"number","value":"1"}]}

• True
• False

13. True or false: Layer 2 will appear to layer on top of Layer 3.

• True
• False

14. True or False: An Actor can send and receive multiple messages.

• True
• False

15. True or false: Variables can contain values that are numbers as well as words or letters.

• True
• False