Programming 302

1. What will this code block do to an Actor? {"func":"blockMotionPointTowards","values":[{"type":"string","value":"mouse-pointer"}]}

• The Actor will point towards the mouse pointer
• The Actor will point towards another Actor
• The Actor will point towards the top edge
• The Actor will point towards the bottom edge

2. What will this code block do to an Actor? {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"50"}]}

• It will push the Actor forward towards whatever direction it's facing by applying a sudden force
• It will always push the Actor up regardless of what direction it's facing
• It will start physics
• It will set how bouncy the Actor is

3. Which code block will push the Actor forward towards whatever direction it's facing the most?

• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"500"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"50"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"5"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":".5"}]}

4. Which code block will push the Actor forward towards whatever direction it's facing the least?

• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"500"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"50"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"5"}]}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":".5"}]}

5. What direction does this block apply the impulse in? {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"50"}]}

• It applies the impulse in the direction the Actor is facing
• It applies the impulse along the y axis
• It applies the impulse along the x axis
• It applies the impulse towards the left side of the screen

6. How could we change this code block to make the Actor fall faster? {"func":"registerFlagTrigger","next":{"func":"blockPhysicsStart","next":{"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"20"}],"next":{"func":"blockPhysicsSetGeometry","values":[{"type":"choice","value":"rectangular"}],"next":{"func":"blockMotionPointDirection","values":[{"type":"string","value":0}]}}}}}

• Change the {"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"20"}]} block to {"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"30"}]}
• Change the {"func":"blockMotionPointDirection","values":[{"type":"string","value":"0"}]} to {"func":"blockMotionPointDirection","values":[{"type":"string","value":"90"}]}
• Change the {"func":"blockPhysicsSetGeometry","values":[{"type":"choice","value":"rectangular"}]} block to {"func":"blockPhysicsSetGeometry","values":[{"type":"choice","value":"circular"}]}
• Remove the {"func":"blockPhysicsStart"} block

7. What would happen if you changed {"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"10"}]} to {"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"10"},{"type":"number","value":"0"}]}?

• Actors would fall sideways instead of downwards
• Actors would be affected by gravity normally
• Actors would fall upwards instead of downwards
• Actors would not move at all when physics were started

8. What would this code block do? {"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"0"}]}

• It would set both horizontal and vertical gravity to 0, so that when physics is turned on, the Actors will stay where they are. There will be no gravitational force.
• It would only set horizontal gravity to 0, meaning that when physics is turned on, the Actors will be pulled down.
• It would only set horizontal gravity to 0, meaning that when physics is turned on, the Actors will be pulled up.
• It would only set vertical gravity to 0, meaning that when physics is turned on, the Actors will be pulled to the right.

9. Which code blocks would push an Actor the farthest?

• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"10"}],"next":{"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"0"}]}}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"1"}],"next":{"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"0"}]}}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"10"}],"next":{"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"10"}]}}
• {"func":"blockPhysicsApplyImpulse","values":[{"type":"number","value":"10"}],"next":{"func":"blockPhysicsSetGravity","values":[{"type":"number","value":"0"},{"type":"number","value":"100"}]}}

10. Which two code blocks do the same thing? (Choose 2.)

• {"func":"blockMotionPointDirection","values":[{"type":"string","value":"0"}]}
• {"func":"blockMotionPointDirection","values":[{"type":"string","value":"360"}]}
• {"func":"blockMotionPointDirection","values":[{"type":"string","value":"90"}]}
• {"func":"blockMotionPointDirection","values":[{"type":"string","value":"180"}]}

11. True or false: If an Actor is non-static, it will fall to the ground on its own when physics is started.

• True
• False

12. True or false: An active, non-static Actor can bounce off of other objects and is affected by gravity.

• True
• False

13. True or false: An Actor cannot be both static and active.

• True
• False

14. True or false: You can program an Actor to point at another Actor.

• True
• False

15. True or false: The lower the impulse, the farther an Actor will be pushed.

• True
• False